1 //===-- X86InstrInfo.cpp - X86 Instruction Information --------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the X86 implementation of the TargetInstrInfo class.
12 //===----------------------------------------------------------------------===//
14 #include "X86InstrInfo.h"
16 #include "X86InstrBuilder.h"
17 #include "X86MachineFunctionInfo.h"
18 #include "X86Subtarget.h"
19 #include "X86TargetMachine.h"
20 #include "llvm/ADT/STLExtras.h"
21 #include "llvm/CodeGen/LivePhysRegs.h"
22 #include "llvm/CodeGen/LiveVariables.h"
23 #include "llvm/CodeGen/MachineConstantPool.h"
24 #include "llvm/CodeGen/MachineDominators.h"
25 #include "llvm/CodeGen/MachineFrameInfo.h"
26 #include "llvm/CodeGen/MachineInstrBuilder.h"
27 #include "llvm/CodeGen/MachineModuleInfo.h"
28 #include "llvm/CodeGen/MachineRegisterInfo.h"
29 #include "llvm/CodeGen/StackMaps.h"
30 #include "llvm/IR/DerivedTypes.h"
31 #include "llvm/IR/Function.h"
32 #include "llvm/IR/LLVMContext.h"
33 #include "llvm/MC/MCAsmInfo.h"
34 #include "llvm/MC/MCExpr.h"
35 #include "llvm/MC/MCInst.h"
36 #include "llvm/Support/CommandLine.h"
37 #include "llvm/Support/Debug.h"
38 #include "llvm/Support/ErrorHandling.h"
39 #include "llvm/Support/raw_ostream.h"
40 #include "llvm/Target/TargetOptions.h"
44 #define DEBUG_TYPE "x86-instr-info"
46 #define GET_INSTRINFO_CTOR_DTOR
47 #include "X86GenInstrInfo.inc"
50 NoFusing("disable-spill-fusing",
51 cl::desc("Disable fusing of spill code into instructions"));
53 PrintFailedFusing("print-failed-fuse-candidates",
54 cl::desc("Print instructions that the allocator wants to"
55 " fuse, but the X86 backend currently can't"),
58 ReMatPICStubLoad("remat-pic-stub-load",
59 cl::desc("Re-materialize load from stub in PIC mode"),
60 cl::init(false), cl::Hidden);
61 static cl::opt<unsigned>
62 PartialRegUpdateClearance("partial-reg-update-clearance",
63 cl::desc("Clearance between two register writes "
64 "for inserting XOR to avoid partial "
66 cl::init(64), cl::Hidden);
67 static cl::opt<unsigned>
68 UndefRegClearance("undef-reg-clearance",
69 cl::desc("How many idle instructions we would like before "
70 "certain undef register reads"),
71 cl::init(64), cl::Hidden);
74 // Select which memory operand is being unfolded.
75 // (stored in bits 0 - 3)
83 // Do not insert the reverse map (MemOp -> RegOp) into the table.
84 // This may be needed because there is a many -> one mapping.
85 TB_NO_REVERSE = 1 << 4,
87 // Do not insert the forward map (RegOp -> MemOp) into the table.
88 // This is needed for Native Client, which prohibits branch
89 // instructions from using a memory operand.
90 TB_NO_FORWARD = 1 << 5,
92 TB_FOLDED_LOAD = 1 << 6,
93 TB_FOLDED_STORE = 1 << 7,
95 // Minimum alignment required for load/store.
96 // Used for RegOp->MemOp conversion.
97 // (stored in bits 8 - 15)
99 TB_ALIGN_NONE = 0 << TB_ALIGN_SHIFT,
100 TB_ALIGN_16 = 16 << TB_ALIGN_SHIFT,
101 TB_ALIGN_32 = 32 << TB_ALIGN_SHIFT,
102 TB_ALIGN_64 = 64 << TB_ALIGN_SHIFT,
103 TB_ALIGN_MASK = 0xff << TB_ALIGN_SHIFT
106 struct X86MemoryFoldTableEntry {
112 // Pin the vtable to this file.
113 void X86InstrInfo::anchor() {}
115 X86InstrInfo::X86InstrInfo(X86Subtarget &STI)
116 : X86GenInstrInfo((STI.isTarget64BitLP64() ? X86::ADJCALLSTACKDOWN64
117 : X86::ADJCALLSTACKDOWN32),
118 (STI.isTarget64BitLP64() ? X86::ADJCALLSTACKUP64
119 : X86::ADJCALLSTACKUP32),
121 (STI.is64Bit() ? X86::RETQ : X86::RETL)),
122 Subtarget(STI), RI(STI.getTargetTriple()) {
124 static const X86MemoryFoldTableEntry MemoryFoldTable2Addr[] = {
125 { X86::ADC32ri, X86::ADC32mi, 0 },
126 { X86::ADC32ri8, X86::ADC32mi8, 0 },
127 { X86::ADC32rr, X86::ADC32mr, 0 },
128 { X86::ADC64ri32, X86::ADC64mi32, 0 },
129 { X86::ADC64ri8, X86::ADC64mi8, 0 },
130 { X86::ADC64rr, X86::ADC64mr, 0 },
131 { X86::ADD16ri, X86::ADD16mi, 0 },
132 { X86::ADD16ri8, X86::ADD16mi8, 0 },
133 { X86::ADD16ri_DB, X86::ADD16mi, TB_NO_REVERSE },
134 { X86::ADD16ri8_DB, X86::ADD16mi8, TB_NO_REVERSE },
135 { X86::ADD16rr, X86::ADD16mr, 0 },
136 { X86::ADD16rr_DB, X86::ADD16mr, TB_NO_REVERSE },
137 { X86::ADD32ri, X86::ADD32mi, 0 },
138 { X86::ADD32ri8, X86::ADD32mi8, 0 },
139 { X86::ADD32ri_DB, X86::ADD32mi, TB_NO_REVERSE },
140 { X86::ADD32ri8_DB, X86::ADD32mi8, TB_NO_REVERSE },
141 { X86::ADD32rr, X86::ADD32mr, 0 },
142 { X86::ADD32rr_DB, X86::ADD32mr, TB_NO_REVERSE },
143 { X86::ADD64ri32, X86::ADD64mi32, 0 },
144 { X86::ADD64ri8, X86::ADD64mi8, 0 },
145 { X86::ADD64ri32_DB,X86::ADD64mi32, TB_NO_REVERSE },
146 { X86::ADD64ri8_DB, X86::ADD64mi8, TB_NO_REVERSE },
147 { X86::ADD64rr, X86::ADD64mr, 0 },
148 { X86::ADD64rr_DB, X86::ADD64mr, TB_NO_REVERSE },
149 { X86::ADD8ri, X86::ADD8mi, 0 },
150 { X86::ADD8rr, X86::ADD8mr, 0 },
151 { X86::AND16ri, X86::AND16mi, 0 },
152 { X86::AND16ri8, X86::AND16mi8, 0 },
153 { X86::AND16rr, X86::AND16mr, 0 },
154 { X86::AND32ri, X86::AND32mi, 0 },
155 { X86::AND32ri8, X86::AND32mi8, 0 },
156 { X86::AND32rr, X86::AND32mr, 0 },
157 { X86::AND64ri32, X86::AND64mi32, 0 },
158 { X86::AND64ri8, X86::AND64mi8, 0 },
159 { X86::AND64rr, X86::AND64mr, 0 },
160 { X86::AND8ri, X86::AND8mi, 0 },
161 { X86::AND8rr, X86::AND8mr, 0 },
162 { X86::DEC16r, X86::DEC16m, 0 },
163 { X86::DEC32r, X86::DEC32m, 0 },
164 { X86::DEC64r, X86::DEC64m, 0 },
165 { X86::DEC8r, X86::DEC8m, 0 },
166 { X86::INC16r, X86::INC16m, 0 },
167 { X86::INC32r, X86::INC32m, 0 },
168 { X86::INC64r, X86::INC64m, 0 },
169 { X86::INC8r, X86::INC8m, 0 },
170 { X86::NEG16r, X86::NEG16m, 0 },
171 { X86::NEG32r, X86::NEG32m, 0 },
172 { X86::NEG64r, X86::NEG64m, 0 },
173 { X86::NEG8r, X86::NEG8m, 0 },
174 { X86::NOT16r, X86::NOT16m, 0 },
175 { X86::NOT32r, X86::NOT32m, 0 },
176 { X86::NOT64r, X86::NOT64m, 0 },
177 { X86::NOT8r, X86::NOT8m, 0 },
178 { X86::OR16ri, X86::OR16mi, 0 },
179 { X86::OR16ri8, X86::OR16mi8, 0 },
180 { X86::OR16rr, X86::OR16mr, 0 },
181 { X86::OR32ri, X86::OR32mi, 0 },
182 { X86::OR32ri8, X86::OR32mi8, 0 },
183 { X86::OR32rr, X86::OR32mr, 0 },
184 { X86::OR64ri32, X86::OR64mi32, 0 },
185 { X86::OR64ri8, X86::OR64mi8, 0 },
186 { X86::OR64rr, X86::OR64mr, 0 },
187 { X86::OR8ri, X86::OR8mi, 0 },
188 { X86::OR8rr, X86::OR8mr, 0 },
189 { X86::ROL16r1, X86::ROL16m1, 0 },
190 { X86::ROL16rCL, X86::ROL16mCL, 0 },
191 { X86::ROL16ri, X86::ROL16mi, 0 },
192 { X86::ROL32r1, X86::ROL32m1, 0 },
193 { X86::ROL32rCL, X86::ROL32mCL, 0 },
194 { X86::ROL32ri, X86::ROL32mi, 0 },
195 { X86::ROL64r1, X86::ROL64m1, 0 },
196 { X86::ROL64rCL, X86::ROL64mCL, 0 },
197 { X86::ROL64ri, X86::ROL64mi, 0 },
198 { X86::ROL8r1, X86::ROL8m1, 0 },
199 { X86::ROL8rCL, X86::ROL8mCL, 0 },
200 { X86::ROL8ri, X86::ROL8mi, 0 },
201 { X86::ROR16r1, X86::ROR16m1, 0 },
202 { X86::ROR16rCL, X86::ROR16mCL, 0 },
203 { X86::ROR16ri, X86::ROR16mi, 0 },
204 { X86::ROR32r1, X86::ROR32m1, 0 },
205 { X86::ROR32rCL, X86::ROR32mCL, 0 },
206 { X86::ROR32ri, X86::ROR32mi, 0 },
207 { X86::ROR64r1, X86::ROR64m1, 0 },
208 { X86::ROR64rCL, X86::ROR64mCL, 0 },
209 { X86::ROR64ri, X86::ROR64mi, 0 },
210 { X86::ROR8r1, X86::ROR8m1, 0 },
211 { X86::ROR8rCL, X86::ROR8mCL, 0 },
212 { X86::ROR8ri, X86::ROR8mi, 0 },
213 { X86::SAR16r1, X86::SAR16m1, 0 },
214 { X86::SAR16rCL, X86::SAR16mCL, 0 },
215 { X86::SAR16ri, X86::SAR16mi, 0 },
216 { X86::SAR32r1, X86::SAR32m1, 0 },
217 { X86::SAR32rCL, X86::SAR32mCL, 0 },
218 { X86::SAR32ri, X86::SAR32mi, 0 },
219 { X86::SAR64r1, X86::SAR64m1, 0 },
220 { X86::SAR64rCL, X86::SAR64mCL, 0 },
221 { X86::SAR64ri, X86::SAR64mi, 0 },
222 { X86::SAR8r1, X86::SAR8m1, 0 },
223 { X86::SAR8rCL, X86::SAR8mCL, 0 },
224 { X86::SAR8ri, X86::SAR8mi, 0 },
225 { X86::SBB32ri, X86::SBB32mi, 0 },
226 { X86::SBB32ri8, X86::SBB32mi8, 0 },
227 { X86::SBB32rr, X86::SBB32mr, 0 },
228 { X86::SBB64ri32, X86::SBB64mi32, 0 },
229 { X86::SBB64ri8, X86::SBB64mi8, 0 },
230 { X86::SBB64rr, X86::SBB64mr, 0 },
231 { X86::SHL16rCL, X86::SHL16mCL, 0 },
232 { X86::SHL16ri, X86::SHL16mi, 0 },
233 { X86::SHL32rCL, X86::SHL32mCL, 0 },
234 { X86::SHL32ri, X86::SHL32mi, 0 },
235 { X86::SHL64rCL, X86::SHL64mCL, 0 },
236 { X86::SHL64ri, X86::SHL64mi, 0 },
237 { X86::SHL8rCL, X86::SHL8mCL, 0 },
238 { X86::SHL8ri, X86::SHL8mi, 0 },
239 { X86::SHLD16rrCL, X86::SHLD16mrCL, 0 },
240 { X86::SHLD16rri8, X86::SHLD16mri8, 0 },
241 { X86::SHLD32rrCL, X86::SHLD32mrCL, 0 },
242 { X86::SHLD32rri8, X86::SHLD32mri8, 0 },
243 { X86::SHLD64rrCL, X86::SHLD64mrCL, 0 },
244 { X86::SHLD64rri8, X86::SHLD64mri8, 0 },
245 { X86::SHR16r1, X86::SHR16m1, 0 },
246 { X86::SHR16rCL, X86::SHR16mCL, 0 },
247 { X86::SHR16ri, X86::SHR16mi, 0 },
248 { X86::SHR32r1, X86::SHR32m1, 0 },
249 { X86::SHR32rCL, X86::SHR32mCL, 0 },
250 { X86::SHR32ri, X86::SHR32mi, 0 },
251 { X86::SHR64r1, X86::SHR64m1, 0 },
252 { X86::SHR64rCL, X86::SHR64mCL, 0 },
253 { X86::SHR64ri, X86::SHR64mi, 0 },
254 { X86::SHR8r1, X86::SHR8m1, 0 },
255 { X86::SHR8rCL, X86::SHR8mCL, 0 },
256 { X86::SHR8ri, X86::SHR8mi, 0 },
257 { X86::SHRD16rrCL, X86::SHRD16mrCL, 0 },
258 { X86::SHRD16rri8, X86::SHRD16mri8, 0 },
259 { X86::SHRD32rrCL, X86::SHRD32mrCL, 0 },
260 { X86::SHRD32rri8, X86::SHRD32mri8, 0 },
261 { X86::SHRD64rrCL, X86::SHRD64mrCL, 0 },
262 { X86::SHRD64rri8, X86::SHRD64mri8, 0 },
263 { X86::SUB16ri, X86::SUB16mi, 0 },
264 { X86::SUB16ri8, X86::SUB16mi8, 0 },
265 { X86::SUB16rr, X86::SUB16mr, 0 },
266 { X86::SUB32ri, X86::SUB32mi, 0 },
267 { X86::SUB32ri8, X86::SUB32mi8, 0 },
268 { X86::SUB32rr, X86::SUB32mr, 0 },
269 { X86::SUB64ri32, X86::SUB64mi32, 0 },
270 { X86::SUB64ri8, X86::SUB64mi8, 0 },
271 { X86::SUB64rr, X86::SUB64mr, 0 },
272 { X86::SUB8ri, X86::SUB8mi, 0 },
273 { X86::SUB8rr, X86::SUB8mr, 0 },
274 { X86::XOR16ri, X86::XOR16mi, 0 },
275 { X86::XOR16ri8, X86::XOR16mi8, 0 },
276 { X86::XOR16rr, X86::XOR16mr, 0 },
277 { X86::XOR32ri, X86::XOR32mi, 0 },
278 { X86::XOR32ri8, X86::XOR32mi8, 0 },
279 { X86::XOR32rr, X86::XOR32mr, 0 },
280 { X86::XOR64ri32, X86::XOR64mi32, 0 },
281 { X86::XOR64ri8, X86::XOR64mi8, 0 },
282 { X86::XOR64rr, X86::XOR64mr, 0 },
283 { X86::XOR8ri, X86::XOR8mi, 0 },
284 { X86::XOR8rr, X86::XOR8mr, 0 }
287 for (X86MemoryFoldTableEntry Entry : MemoryFoldTable2Addr) {
288 AddTableEntry(RegOp2MemOpTable2Addr, MemOp2RegOpTable,
289 Entry.RegOp, Entry.MemOp,
290 // Index 0, folded load and store, no alignment requirement.
291 Entry.Flags | TB_INDEX_0 | TB_FOLDED_LOAD | TB_FOLDED_STORE);
294 static const X86MemoryFoldTableEntry MemoryFoldTable0[] = {
295 { X86::BT16ri8, X86::BT16mi8, TB_FOLDED_LOAD },
296 { X86::BT32ri8, X86::BT32mi8, TB_FOLDED_LOAD },
297 { X86::BT64ri8, X86::BT64mi8, TB_FOLDED_LOAD },
298 { X86::CALL32r, X86::CALL32m, TB_FOLDED_LOAD },
299 { X86::CALL64r, X86::CALL64m, TB_FOLDED_LOAD },
300 { X86::CMP16ri, X86::CMP16mi, TB_FOLDED_LOAD },
301 { X86::CMP16ri8, X86::CMP16mi8, TB_FOLDED_LOAD },
302 { X86::CMP16rr, X86::CMP16mr, TB_FOLDED_LOAD },
303 { X86::CMP32ri, X86::CMP32mi, TB_FOLDED_LOAD },
304 { X86::CMP32ri8, X86::CMP32mi8, TB_FOLDED_LOAD },
305 { X86::CMP32rr, X86::CMP32mr, TB_FOLDED_LOAD },
306 { X86::CMP64ri32, X86::CMP64mi32, TB_FOLDED_LOAD },
307 { X86::CMP64ri8, X86::CMP64mi8, TB_FOLDED_LOAD },
308 { X86::CMP64rr, X86::CMP64mr, TB_FOLDED_LOAD },
309 { X86::CMP8ri, X86::CMP8mi, TB_FOLDED_LOAD },
310 { X86::CMP8rr, X86::CMP8mr, TB_FOLDED_LOAD },
311 { X86::DIV16r, X86::DIV16m, TB_FOLDED_LOAD },
312 { X86::DIV32r, X86::DIV32m, TB_FOLDED_LOAD },
313 { X86::DIV64r, X86::DIV64m, TB_FOLDED_LOAD },
314 { X86::DIV8r, X86::DIV8m, TB_FOLDED_LOAD },
315 { X86::EXTRACTPSrr, X86::EXTRACTPSmr, TB_FOLDED_STORE },
316 { X86::IDIV16r, X86::IDIV16m, TB_FOLDED_LOAD },
317 { X86::IDIV32r, X86::IDIV32m, TB_FOLDED_LOAD },
318 { X86::IDIV64r, X86::IDIV64m, TB_FOLDED_LOAD },
319 { X86::IDIV8r, X86::IDIV8m, TB_FOLDED_LOAD },
320 { X86::IMUL16r, X86::IMUL16m, TB_FOLDED_LOAD },
321 { X86::IMUL32r, X86::IMUL32m, TB_FOLDED_LOAD },
322 { X86::IMUL64r, X86::IMUL64m, TB_FOLDED_LOAD },
323 { X86::IMUL8r, X86::IMUL8m, TB_FOLDED_LOAD },
324 { X86::JMP32r, X86::JMP32m, TB_FOLDED_LOAD },
325 { X86::JMP64r, X86::JMP64m, TB_FOLDED_LOAD },
326 { X86::MOV16ri, X86::MOV16mi, TB_FOLDED_STORE },
327 { X86::MOV16rr, X86::MOV16mr, TB_FOLDED_STORE },
328 { X86::MOV32ri, X86::MOV32mi, TB_FOLDED_STORE },
329 { X86::MOV32rr, X86::MOV32mr, TB_FOLDED_STORE },
330 { X86::MOV64ri32, X86::MOV64mi32, TB_FOLDED_STORE },
331 { X86::MOV64rr, X86::MOV64mr, TB_FOLDED_STORE },
332 { X86::MOV8ri, X86::MOV8mi, TB_FOLDED_STORE },
333 { X86::MOV8rr, X86::MOV8mr, TB_FOLDED_STORE },
334 { X86::MOV8rr_NOREX, X86::MOV8mr_NOREX, TB_FOLDED_STORE },
335 { X86::MOVAPDrr, X86::MOVAPDmr, TB_FOLDED_STORE | TB_ALIGN_16 },
336 { X86::MOVAPSrr, X86::MOVAPSmr, TB_FOLDED_STORE | TB_ALIGN_16 },
337 { X86::MOVDQArr, X86::MOVDQAmr, TB_FOLDED_STORE | TB_ALIGN_16 },
338 { X86::MOVPDI2DIrr, X86::MOVPDI2DImr, TB_FOLDED_STORE },
339 { X86::MOVPQIto64rr,X86::MOVPQI2QImr, TB_FOLDED_STORE },
340 { X86::MOVSDto64rr, X86::MOVSDto64mr, TB_FOLDED_STORE },
341 { X86::MOVSS2DIrr, X86::MOVSS2DImr, TB_FOLDED_STORE },
342 { X86::MOVUPDrr, X86::MOVUPDmr, TB_FOLDED_STORE },
343 { X86::MOVUPSrr, X86::MOVUPSmr, TB_FOLDED_STORE },
344 { X86::MUL16r, X86::MUL16m, TB_FOLDED_LOAD },
345 { X86::MUL32r, X86::MUL32m, TB_FOLDED_LOAD },
346 { X86::MUL64r, X86::MUL64m, TB_FOLDED_LOAD },
347 { X86::MUL8r, X86::MUL8m, TB_FOLDED_LOAD },
348 { X86::PEXTRDrr, X86::PEXTRDmr, TB_FOLDED_STORE },
349 { X86::PEXTRQrr, X86::PEXTRQmr, TB_FOLDED_STORE },
350 { X86::PUSH16r, X86::PUSH16rmm, TB_FOLDED_LOAD },
351 { X86::PUSH32r, X86::PUSH32rmm, TB_FOLDED_LOAD },
352 { X86::PUSH64r, X86::PUSH64rmm, TB_FOLDED_LOAD },
353 { X86::SETAEr, X86::SETAEm, TB_FOLDED_STORE },
354 { X86::SETAr, X86::SETAm, TB_FOLDED_STORE },
355 { X86::SETBEr, X86::SETBEm, TB_FOLDED_STORE },
356 { X86::SETBr, X86::SETBm, TB_FOLDED_STORE },
357 { X86::SETEr, X86::SETEm, TB_FOLDED_STORE },
358 { X86::SETGEr, X86::SETGEm, TB_FOLDED_STORE },
359 { X86::SETGr, X86::SETGm, TB_FOLDED_STORE },
360 { X86::SETLEr, X86::SETLEm, TB_FOLDED_STORE },
361 { X86::SETLr, X86::SETLm, TB_FOLDED_STORE },
362 { X86::SETNEr, X86::SETNEm, TB_FOLDED_STORE },
363 { X86::SETNOr, X86::SETNOm, TB_FOLDED_STORE },
364 { X86::SETNPr, X86::SETNPm, TB_FOLDED_STORE },
365 { X86::SETNSr, X86::SETNSm, TB_FOLDED_STORE },
366 { X86::SETOr, X86::SETOm, TB_FOLDED_STORE },
367 { X86::SETPr, X86::SETPm, TB_FOLDED_STORE },
368 { X86::SETSr, X86::SETSm, TB_FOLDED_STORE },
369 { X86::TAILJMPr, X86::TAILJMPm, TB_FOLDED_LOAD },
370 { X86::TAILJMPr64, X86::TAILJMPm64, TB_FOLDED_LOAD },
371 { X86::TAILJMPr64_REX, X86::TAILJMPm64_REX, TB_FOLDED_LOAD },
372 { X86::TEST16ri, X86::TEST16mi, TB_FOLDED_LOAD },
373 { X86::TEST32ri, X86::TEST32mi, TB_FOLDED_LOAD },
374 { X86::TEST64ri32, X86::TEST64mi32, TB_FOLDED_LOAD },
375 { X86::TEST8ri, X86::TEST8mi, TB_FOLDED_LOAD },
377 // AVX 128-bit versions of foldable instructions
378 { X86::VEXTRACTPSrr,X86::VEXTRACTPSmr, TB_FOLDED_STORE },
379 { X86::VEXTRACTF128rr, X86::VEXTRACTF128mr, TB_FOLDED_STORE | TB_ALIGN_16 },
380 { X86::VMOVAPDrr, X86::VMOVAPDmr, TB_FOLDED_STORE | TB_ALIGN_16 },
381 { X86::VMOVAPSrr, X86::VMOVAPSmr, TB_FOLDED_STORE | TB_ALIGN_16 },
382 { X86::VMOVDQArr, X86::VMOVDQAmr, TB_FOLDED_STORE | TB_ALIGN_16 },
383 { X86::VMOVPDI2DIrr,X86::VMOVPDI2DImr, TB_FOLDED_STORE },
384 { X86::VMOVPQIto64rr, X86::VMOVPQI2QImr,TB_FOLDED_STORE },
385 { X86::VMOVSDto64rr,X86::VMOVSDto64mr, TB_FOLDED_STORE },
386 { X86::VMOVSS2DIrr, X86::VMOVSS2DImr, TB_FOLDED_STORE },
387 { X86::VMOVUPDrr, X86::VMOVUPDmr, TB_FOLDED_STORE },
388 { X86::VMOVUPSrr, X86::VMOVUPSmr, TB_FOLDED_STORE },
389 { X86::VPEXTRDrr, X86::VPEXTRDmr, TB_FOLDED_STORE },
390 { X86::VPEXTRQrr, X86::VPEXTRQmr, TB_FOLDED_STORE },
392 // AVX 256-bit foldable instructions
393 { X86::VEXTRACTI128rr, X86::VEXTRACTI128mr, TB_FOLDED_STORE | TB_ALIGN_16 },
394 { X86::VMOVAPDYrr, X86::VMOVAPDYmr, TB_FOLDED_STORE | TB_ALIGN_32 },
395 { X86::VMOVAPSYrr, X86::VMOVAPSYmr, TB_FOLDED_STORE | TB_ALIGN_32 },
396 { X86::VMOVDQAYrr, X86::VMOVDQAYmr, TB_FOLDED_STORE | TB_ALIGN_32 },
397 { X86::VMOVUPDYrr, X86::VMOVUPDYmr, TB_FOLDED_STORE },
398 { X86::VMOVUPSYrr, X86::VMOVUPSYmr, TB_FOLDED_STORE },
400 // AVX-512 foldable instructions
401 { X86::VMOVPDI2DIZrr, X86::VMOVPDI2DIZmr, TB_FOLDED_STORE },
402 { X86::VMOVAPDZrr, X86::VMOVAPDZmr, TB_FOLDED_STORE | TB_ALIGN_64 },
403 { X86::VMOVAPSZrr, X86::VMOVAPSZmr, TB_FOLDED_STORE | TB_ALIGN_64 },
404 { X86::VMOVDQA32Zrr, X86::VMOVDQA32Zmr, TB_FOLDED_STORE | TB_ALIGN_64 },
405 { X86::VMOVDQA64Zrr, X86::VMOVDQA64Zmr, TB_FOLDED_STORE | TB_ALIGN_64 },
406 { X86::VMOVUPDZrr, X86::VMOVUPDZmr, TB_FOLDED_STORE },
407 { X86::VMOVUPSZrr, X86::VMOVUPSZmr, TB_FOLDED_STORE },
408 { X86::VMOVDQU8Zrr, X86::VMOVDQU8Zmr, TB_FOLDED_STORE },
409 { X86::VMOVDQU16Zrr, X86::VMOVDQU16Zmr, TB_FOLDED_STORE },
410 { X86::VMOVDQU32Zrr, X86::VMOVDQU32Zmr, TB_FOLDED_STORE },
411 { X86::VMOVDQU64Zrr, X86::VMOVDQU64Zmr, TB_FOLDED_STORE },
413 // AVX-512 foldable instructions (256-bit versions)
414 { X86::VMOVAPDZ256rr, X86::VMOVAPDZ256mr, TB_FOLDED_STORE | TB_ALIGN_32 },
415 { X86::VMOVAPSZ256rr, X86::VMOVAPSZ256mr, TB_FOLDED_STORE | TB_ALIGN_32 },
416 { X86::VMOVDQA32Z256rr, X86::VMOVDQA32Z256mr, TB_FOLDED_STORE | TB_ALIGN_32 },
417 { X86::VMOVDQA64Z256rr, X86::VMOVDQA64Z256mr, TB_FOLDED_STORE | TB_ALIGN_32 },
418 { X86::VMOVUPDZ256rr, X86::VMOVUPDZ256mr, TB_FOLDED_STORE },
419 { X86::VMOVUPSZ256rr, X86::VMOVUPSZ256mr, TB_FOLDED_STORE },
420 { X86::VMOVDQU8Z256rr, X86::VMOVDQU8Z256mr, TB_FOLDED_STORE },
421 { X86::VMOVDQU16Z256rr, X86::VMOVDQU16Z256mr, TB_FOLDED_STORE },
422 { X86::VMOVDQU32Z256rr, X86::VMOVDQU32Z256mr, TB_FOLDED_STORE },
423 { X86::VMOVDQU64Z256rr, X86::VMOVDQU64Z256mr, TB_FOLDED_STORE },
425 // AVX-512 foldable instructions (128-bit versions)
426 { X86::VMOVAPDZ128rr, X86::VMOVAPDZ128mr, TB_FOLDED_STORE | TB_ALIGN_16 },
427 { X86::VMOVAPSZ128rr, X86::VMOVAPSZ128mr, TB_FOLDED_STORE | TB_ALIGN_16 },
428 { X86::VMOVDQA32Z128rr, X86::VMOVDQA32Z128mr, TB_FOLDED_STORE | TB_ALIGN_16 },
429 { X86::VMOVDQA64Z128rr, X86::VMOVDQA64Z128mr, TB_FOLDED_STORE | TB_ALIGN_16 },
430 { X86::VMOVUPDZ128rr, X86::VMOVUPDZ128mr, TB_FOLDED_STORE },
431 { X86::VMOVUPSZ128rr, X86::VMOVUPSZ128mr, TB_FOLDED_STORE },
432 { X86::VMOVDQU8Z128rr, X86::VMOVDQU8Z128mr, TB_FOLDED_STORE },
433 { X86::VMOVDQU16Z128rr, X86::VMOVDQU16Z128mr, TB_FOLDED_STORE },
434 { X86::VMOVDQU32Z128rr, X86::VMOVDQU32Z128mr, TB_FOLDED_STORE },
435 { X86::VMOVDQU64Z128rr, X86::VMOVDQU64Z128mr, TB_FOLDED_STORE },
437 // F16C foldable instructions
438 { X86::VCVTPS2PHrr, X86::VCVTPS2PHmr, TB_FOLDED_STORE },
439 { X86::VCVTPS2PHYrr, X86::VCVTPS2PHYmr, TB_FOLDED_STORE }
442 for (X86MemoryFoldTableEntry Entry : MemoryFoldTable0) {
443 AddTableEntry(RegOp2MemOpTable0, MemOp2RegOpTable,
444 Entry.RegOp, Entry.MemOp, TB_INDEX_0 | Entry.Flags);
447 static const X86MemoryFoldTableEntry MemoryFoldTable1[] = {
448 { X86::BSF16rr, X86::BSF16rm, 0 },
449 { X86::BSF32rr, X86::BSF32rm, 0 },
450 { X86::BSF64rr, X86::BSF64rm, 0 },
451 { X86::BSR16rr, X86::BSR16rm, 0 },
452 { X86::BSR32rr, X86::BSR32rm, 0 },
453 { X86::BSR64rr, X86::BSR64rm, 0 },
454 { X86::CMP16rr, X86::CMP16rm, 0 },
455 { X86::CMP32rr, X86::CMP32rm, 0 },
456 { X86::CMP64rr, X86::CMP64rm, 0 },
457 { X86::CMP8rr, X86::CMP8rm, 0 },
458 { X86::CVTSD2SSrr, X86::CVTSD2SSrm, 0 },
459 { X86::CVTSI2SD64rr, X86::CVTSI2SD64rm, 0 },
460 { X86::CVTSI2SDrr, X86::CVTSI2SDrm, 0 },
461 { X86::CVTSI2SS64rr, X86::CVTSI2SS64rm, 0 },
462 { X86::CVTSI2SSrr, X86::CVTSI2SSrm, 0 },
463 { X86::CVTSS2SDrr, X86::CVTSS2SDrm, 0 },
464 { X86::CVTTSD2SI64rr, X86::CVTTSD2SI64rm, 0 },
465 { X86::CVTTSD2SIrr, X86::CVTTSD2SIrm, 0 },
466 { X86::CVTTSS2SI64rr, X86::CVTTSS2SI64rm, 0 },
467 { X86::CVTTSS2SIrr, X86::CVTTSS2SIrm, 0 },
468 { X86::IMUL16rri, X86::IMUL16rmi, 0 },
469 { X86::IMUL16rri8, X86::IMUL16rmi8, 0 },
470 { X86::IMUL32rri, X86::IMUL32rmi, 0 },
471 { X86::IMUL32rri8, X86::IMUL32rmi8, 0 },
472 { X86::IMUL64rri32, X86::IMUL64rmi32, 0 },
473 { X86::IMUL64rri8, X86::IMUL64rmi8, 0 },
474 { X86::Int_COMISDrr, X86::Int_COMISDrm, 0 },
475 { X86::Int_COMISSrr, X86::Int_COMISSrm, 0 },
476 { X86::CVTSD2SI64rr, X86::CVTSD2SI64rm, 0 },
477 { X86::CVTSD2SIrr, X86::CVTSD2SIrm, 0 },
478 { X86::CVTSS2SI64rr, X86::CVTSS2SI64rm, 0 },
479 { X86::CVTSS2SIrr, X86::CVTSS2SIrm, 0 },
480 { X86::CVTDQ2PDrr, X86::CVTDQ2PDrm, TB_ALIGN_16 },
481 { X86::CVTDQ2PSrr, X86::CVTDQ2PSrm, TB_ALIGN_16 },
482 { X86::CVTPD2DQrr, X86::CVTPD2DQrm, TB_ALIGN_16 },
483 { X86::CVTPD2PSrr, X86::CVTPD2PSrm, TB_ALIGN_16 },
484 { X86::CVTPS2DQrr, X86::CVTPS2DQrm, TB_ALIGN_16 },
485 { X86::CVTPS2PDrr, X86::CVTPS2PDrm, TB_ALIGN_16 },
486 { X86::CVTTPD2DQrr, X86::CVTTPD2DQrm, TB_ALIGN_16 },
487 { X86::CVTTPS2DQrr, X86::CVTTPS2DQrm, TB_ALIGN_16 },
488 { X86::Int_CVTTSD2SI64rr,X86::Int_CVTTSD2SI64rm, 0 },
489 { X86::Int_CVTTSD2SIrr, X86::Int_CVTTSD2SIrm, 0 },
490 { X86::Int_CVTTSS2SI64rr,X86::Int_CVTTSS2SI64rm, 0 },
491 { X86::Int_CVTTSS2SIrr, X86::Int_CVTTSS2SIrm, 0 },
492 { X86::Int_UCOMISDrr, X86::Int_UCOMISDrm, 0 },
493 { X86::Int_UCOMISSrr, X86::Int_UCOMISSrm, 0 },
494 { X86::MOV16rr, X86::MOV16rm, 0 },
495 { X86::MOV32rr, X86::MOV32rm, 0 },
496 { X86::MOV64rr, X86::MOV64rm, 0 },
497 { X86::MOV64toPQIrr, X86::MOVQI2PQIrm, 0 },
498 { X86::MOV64toSDrr, X86::MOV64toSDrm, 0 },
499 { X86::MOV8rr, X86::MOV8rm, 0 },
500 { X86::MOVAPDrr, X86::MOVAPDrm, TB_ALIGN_16 },
501 { X86::MOVAPSrr, X86::MOVAPSrm, TB_ALIGN_16 },
502 { X86::MOVDDUPrr, X86::MOVDDUPrm, 0 },
503 { X86::MOVDI2PDIrr, X86::MOVDI2PDIrm, 0 },
504 { X86::MOVDI2SSrr, X86::MOVDI2SSrm, 0 },
505 { X86::MOVDQArr, X86::MOVDQArm, TB_ALIGN_16 },
506 { X86::MOVSHDUPrr, X86::MOVSHDUPrm, TB_ALIGN_16 },
507 { X86::MOVSLDUPrr, X86::MOVSLDUPrm, TB_ALIGN_16 },
508 { X86::MOVSX16rr8, X86::MOVSX16rm8, 0 },
509 { X86::MOVSX32rr16, X86::MOVSX32rm16, 0 },
510 { X86::MOVSX32rr8, X86::MOVSX32rm8, 0 },
511 { X86::MOVSX64rr16, X86::MOVSX64rm16, 0 },
512 { X86::MOVSX64rr32, X86::MOVSX64rm32, 0 },
513 { X86::MOVSX64rr8, X86::MOVSX64rm8, 0 },
514 { X86::MOVUPDrr, X86::MOVUPDrm, TB_ALIGN_16 },
515 { X86::MOVUPSrr, X86::MOVUPSrm, 0 },
516 { X86::MOVZPQILo2PQIrr, X86::MOVZPQILo2PQIrm, TB_ALIGN_16 },
517 { X86::MOVZX16rr8, X86::MOVZX16rm8, 0 },
518 { X86::MOVZX32rr16, X86::MOVZX32rm16, 0 },
519 { X86::MOVZX32_NOREXrr8, X86::MOVZX32_NOREXrm8, 0 },
520 { X86::MOVZX32rr8, X86::MOVZX32rm8, 0 },
521 { X86::PABSBrr128, X86::PABSBrm128, TB_ALIGN_16 },
522 { X86::PABSDrr128, X86::PABSDrm128, TB_ALIGN_16 },
523 { X86::PABSWrr128, X86::PABSWrm128, TB_ALIGN_16 },
524 { X86::PCMPESTRIrr, X86::PCMPESTRIrm, TB_ALIGN_16 },
525 { X86::PCMPESTRM128rr, X86::PCMPESTRM128rm, TB_ALIGN_16 },
526 { X86::PCMPISTRIrr, X86::PCMPISTRIrm, TB_ALIGN_16 },
527 { X86::PCMPISTRM128rr, X86::PCMPISTRM128rm, TB_ALIGN_16 },
528 { X86::PHMINPOSUWrr128, X86::PHMINPOSUWrm128, TB_ALIGN_16 },
529 { X86::PMOVSXBDrr, X86::PMOVSXBDrm, TB_ALIGN_16 },
530 { X86::PMOVSXBQrr, X86::PMOVSXBQrm, TB_ALIGN_16 },
531 { X86::PMOVSXBWrr, X86::PMOVSXBWrm, TB_ALIGN_16 },
532 { X86::PMOVSXDQrr, X86::PMOVSXDQrm, TB_ALIGN_16 },
533 { X86::PMOVSXWDrr, X86::PMOVSXWDrm, TB_ALIGN_16 },
534 { X86::PMOVSXWQrr, X86::PMOVSXWQrm, TB_ALIGN_16 },
535 { X86::PMOVZXBDrr, X86::PMOVZXBDrm, TB_ALIGN_16 },
536 { X86::PMOVZXBQrr, X86::PMOVZXBQrm, TB_ALIGN_16 },
537 { X86::PMOVZXBWrr, X86::PMOVZXBWrm, TB_ALIGN_16 },
538 { X86::PMOVZXDQrr, X86::PMOVZXDQrm, TB_ALIGN_16 },
539 { X86::PMOVZXWDrr, X86::PMOVZXWDrm, TB_ALIGN_16 },
540 { X86::PMOVZXWQrr, X86::PMOVZXWQrm, TB_ALIGN_16 },
541 { X86::PSHUFDri, X86::PSHUFDmi, TB_ALIGN_16 },
542 { X86::PSHUFHWri, X86::PSHUFHWmi, TB_ALIGN_16 },
543 { X86::PSHUFLWri, X86::PSHUFLWmi, TB_ALIGN_16 },
544 { X86::PTESTrr, X86::PTESTrm, TB_ALIGN_16 },
545 { X86::RCPPSr, X86::RCPPSm, TB_ALIGN_16 },
546 { X86::RCPSSr, X86::RCPSSm, 0 },
547 { X86::RCPSSr_Int, X86::RCPSSm_Int, 0 },
548 { X86::ROUNDPDr, X86::ROUNDPDm, TB_ALIGN_16 },
549 { X86::ROUNDPSr, X86::ROUNDPSm, TB_ALIGN_16 },
550 { X86::RSQRTPSr, X86::RSQRTPSm, TB_ALIGN_16 },
551 { X86::RSQRTSSr, X86::RSQRTSSm, 0 },
552 { X86::RSQRTSSr_Int, X86::RSQRTSSm_Int, 0 },
553 { X86::SQRTPDr, X86::SQRTPDm, TB_ALIGN_16 },
554 { X86::SQRTPSr, X86::SQRTPSm, TB_ALIGN_16 },
555 { X86::SQRTSDr, X86::SQRTSDm, 0 },
556 { X86::SQRTSDr_Int, X86::SQRTSDm_Int, 0 },
557 { X86::SQRTSSr, X86::SQRTSSm, 0 },
558 { X86::SQRTSSr_Int, X86::SQRTSSm_Int, 0 },
559 { X86::TEST16rr, X86::TEST16rm, 0 },
560 { X86::TEST32rr, X86::TEST32rm, 0 },
561 { X86::TEST64rr, X86::TEST64rm, 0 },
562 { X86::TEST8rr, X86::TEST8rm, 0 },
563 // FIXME: TEST*rr EAX,EAX ---> CMP [mem], 0
564 { X86::UCOMISDrr, X86::UCOMISDrm, 0 },
565 { X86::UCOMISSrr, X86::UCOMISSrm, 0 },
567 // MMX version of foldable instructions
568 { X86::MMX_CVTPD2PIirr, X86::MMX_CVTPD2PIirm, 0 },
569 { X86::MMX_CVTPI2PDirr, X86::MMX_CVTPI2PDirm, 0 },
570 { X86::MMX_CVTPS2PIirr, X86::MMX_CVTPS2PIirm, 0 },
571 { X86::MMX_CVTTPD2PIirr, X86::MMX_CVTTPD2PIirm, 0 },
572 { X86::MMX_CVTTPS2PIirr, X86::MMX_CVTTPS2PIirm, 0 },
573 { X86::MMX_MOVD64to64rr, X86::MMX_MOVQ64rm, 0 },
574 { X86::MMX_PABSBrr64, X86::MMX_PABSBrm64, 0 },
575 { X86::MMX_PABSDrr64, X86::MMX_PABSDrm64, 0 },
576 { X86::MMX_PABSWrr64, X86::MMX_PABSWrm64, 0 },
577 { X86::MMX_PSHUFWri, X86::MMX_PSHUFWmi, 0 },
579 // 3DNow! version of foldable instructions
580 { X86::PF2IDrr, X86::PF2IDrm, 0 },
581 { X86::PF2IWrr, X86::PF2IWrm, 0 },
582 { X86::PFRCPrr, X86::PFRCPrm, 0 },
583 { X86::PFRSQRTrr, X86::PFRSQRTrm, 0 },
584 { X86::PI2FDrr, X86::PI2FDrm, 0 },
585 { X86::PI2FWrr, X86::PI2FWrm, 0 },
586 { X86::PSWAPDrr, X86::PSWAPDrm, 0 },
588 // AVX 128-bit versions of foldable instructions
589 { X86::Int_VCOMISDrr, X86::Int_VCOMISDrm, 0 },
590 { X86::Int_VCOMISSrr, X86::Int_VCOMISSrm, 0 },
591 { X86::Int_VUCOMISDrr, X86::Int_VUCOMISDrm, 0 },
592 { X86::Int_VUCOMISSrr, X86::Int_VUCOMISSrm, 0 },
593 { X86::VCVTTSD2SI64rr, X86::VCVTTSD2SI64rm, 0 },
594 { X86::Int_VCVTTSD2SI64rr,X86::Int_VCVTTSD2SI64rm,0 },
595 { X86::VCVTTSD2SIrr, X86::VCVTTSD2SIrm, 0 },
596 { X86::Int_VCVTTSD2SIrr,X86::Int_VCVTTSD2SIrm, 0 },
597 { X86::VCVTTSS2SI64rr, X86::VCVTTSS2SI64rm, 0 },
598 { X86::Int_VCVTTSS2SI64rr,X86::Int_VCVTTSS2SI64rm,0 },
599 { X86::VCVTTSS2SIrr, X86::VCVTTSS2SIrm, 0 },
600 { X86::Int_VCVTTSS2SIrr,X86::Int_VCVTTSS2SIrm, 0 },
601 { X86::VCVTSD2SI64rr, X86::VCVTSD2SI64rm, 0 },
602 { X86::VCVTSD2SIrr, X86::VCVTSD2SIrm, 0 },
603 { X86::VCVTSS2SI64rr, X86::VCVTSS2SI64rm, 0 },
604 { X86::VCVTSS2SIrr, X86::VCVTSS2SIrm, 0 },
605 { X86::VCVTDQ2PDrr, X86::VCVTDQ2PDrm, 0 },
606 { X86::VCVTDQ2PSrr, X86::VCVTDQ2PSrm, 0 },
607 { X86::VCVTPD2DQrr, X86::VCVTPD2DQXrm, 0 },
608 { X86::VCVTPD2PSrr, X86::VCVTPD2PSXrm, 0 },
609 { X86::VCVTPS2DQrr, X86::VCVTPS2DQrm, 0 },
610 { X86::VCVTPS2PDrr, X86::VCVTPS2PDrm, 0 },
611 { X86::VCVTTPD2DQrr, X86::VCVTTPD2DQXrm, 0 },
612 { X86::VCVTTPS2DQrr, X86::VCVTTPS2DQrm, 0 },
613 { X86::VMOV64toPQIrr, X86::VMOVQI2PQIrm, 0 },
614 { X86::VMOV64toSDrr, X86::VMOV64toSDrm, 0 },
615 { X86::VMOVAPDrr, X86::VMOVAPDrm, TB_ALIGN_16 },
616 { X86::VMOVAPSrr, X86::VMOVAPSrm, TB_ALIGN_16 },
617 { X86::VMOVDDUPrr, X86::VMOVDDUPrm, 0 },
618 { X86::VMOVDI2PDIrr, X86::VMOVDI2PDIrm, 0 },
619 { X86::VMOVDI2SSrr, X86::VMOVDI2SSrm, 0 },
620 { X86::VMOVDQArr, X86::VMOVDQArm, TB_ALIGN_16 },
621 { X86::VMOVSLDUPrr, X86::VMOVSLDUPrm, 0 },
622 { X86::VMOVSHDUPrr, X86::VMOVSHDUPrm, 0 },
623 { X86::VMOVUPDrr, X86::VMOVUPDrm, 0 },
624 { X86::VMOVUPSrr, X86::VMOVUPSrm, 0 },
625 { X86::VMOVZPQILo2PQIrr,X86::VMOVZPQILo2PQIrm, TB_ALIGN_16 },
626 { X86::VPABSBrr128, X86::VPABSBrm128, 0 },
627 { X86::VPABSDrr128, X86::VPABSDrm128, 0 },
628 { X86::VPABSWrr128, X86::VPABSWrm128, 0 },
629 { X86::VPCMPESTRIrr, X86::VPCMPESTRIrm, 0 },
630 { X86::VPCMPESTRM128rr, X86::VPCMPESTRM128rm, 0 },
631 { X86::VPCMPISTRIrr, X86::VPCMPISTRIrm, 0 },
632 { X86::VPCMPISTRM128rr, X86::VPCMPISTRM128rm, 0 },
633 { X86::VPHMINPOSUWrr128, X86::VPHMINPOSUWrm128, 0 },
634 { X86::VPERMILPDri, X86::VPERMILPDmi, 0 },
635 { X86::VPERMILPSri, X86::VPERMILPSmi, 0 },
636 { X86::VPMOVSXBDrr, X86::VPMOVSXBDrm, 0 },
637 { X86::VPMOVSXBQrr, X86::VPMOVSXBQrm, 0 },
638 { X86::VPMOVSXBWrr, X86::VPMOVSXBWrm, 0 },
639 { X86::VPMOVSXDQrr, X86::VPMOVSXDQrm, 0 },
640 { X86::VPMOVSXWDrr, X86::VPMOVSXWDrm, 0 },
641 { X86::VPMOVSXWQrr, X86::VPMOVSXWQrm, 0 },
642 { X86::VPMOVZXBDrr, X86::VPMOVZXBDrm, 0 },
643 { X86::VPMOVZXBQrr, X86::VPMOVZXBQrm, 0 },
644 { X86::VPMOVZXBWrr, X86::VPMOVZXBWrm, 0 },
645 { X86::VPMOVZXDQrr, X86::VPMOVZXDQrm, 0 },
646 { X86::VPMOVZXWDrr, X86::VPMOVZXWDrm, 0 },
647 { X86::VPMOVZXWQrr, X86::VPMOVZXWQrm, 0 },
648 { X86::VPSHUFDri, X86::VPSHUFDmi, 0 },
649 { X86::VPSHUFHWri, X86::VPSHUFHWmi, 0 },
650 { X86::VPSHUFLWri, X86::VPSHUFLWmi, 0 },
651 { X86::VPTESTrr, X86::VPTESTrm, 0 },
652 { X86::VRCPPSr, X86::VRCPPSm, 0 },
653 { X86::VROUNDPDr, X86::VROUNDPDm, 0 },
654 { X86::VROUNDPSr, X86::VROUNDPSm, 0 },
655 { X86::VRSQRTPSr, X86::VRSQRTPSm, 0 },
656 { X86::VSQRTPDr, X86::VSQRTPDm, 0 },
657 { X86::VSQRTPSr, X86::VSQRTPSm, 0 },
658 { X86::VTESTPDrr, X86::VTESTPDrm, 0 },
659 { X86::VTESTPSrr, X86::VTESTPSrm, 0 },
660 { X86::VUCOMISDrr, X86::VUCOMISDrm, 0 },
661 { X86::VUCOMISSrr, X86::VUCOMISSrm, 0 },
663 // AVX 256-bit foldable instructions
664 { X86::VCVTDQ2PDYrr, X86::VCVTDQ2PDYrm, 0 },
665 { X86::VCVTDQ2PSYrr, X86::VCVTDQ2PSYrm, 0 },
666 { X86::VCVTPD2DQYrr, X86::VCVTPD2DQYrm, 0 },
667 { X86::VCVTPD2PSYrr, X86::VCVTPD2PSYrm, 0 },
668 { X86::VCVTPS2DQYrr, X86::VCVTPS2DQYrm, 0 },
669 { X86::VCVTPS2PDYrr, X86::VCVTPS2PDYrm, 0 },
670 { X86::VCVTTPD2DQYrr, X86::VCVTTPD2DQYrm, 0 },
671 { X86::VCVTTPS2DQYrr, X86::VCVTTPS2DQYrm, 0 },
672 { X86::VMOVAPDYrr, X86::VMOVAPDYrm, TB_ALIGN_32 },
673 { X86::VMOVAPSYrr, X86::VMOVAPSYrm, TB_ALIGN_32 },
674 { X86::VMOVDDUPYrr, X86::VMOVDDUPYrm, 0 },
675 { X86::VMOVDQAYrr, X86::VMOVDQAYrm, TB_ALIGN_32 },
676 { X86::VMOVSLDUPYrr, X86::VMOVSLDUPYrm, 0 },
677 { X86::VMOVSHDUPYrr, X86::VMOVSHDUPYrm, 0 },
678 { X86::VMOVUPDYrr, X86::VMOVUPDYrm, 0 },
679 { X86::VMOVUPSYrr, X86::VMOVUPSYrm, 0 },
680 { X86::VPERMILPDYri, X86::VPERMILPDYmi, 0 },
681 { X86::VPERMILPSYri, X86::VPERMILPSYmi, 0 },
682 { X86::VPTESTYrr, X86::VPTESTYrm, 0 },
683 { X86::VRCPPSYr, X86::VRCPPSYm, 0 },
684 { X86::VROUNDYPDr, X86::VROUNDYPDm, 0 },
685 { X86::VROUNDYPSr, X86::VROUNDYPSm, 0 },
686 { X86::VRSQRTPSYr, X86::VRSQRTPSYm, 0 },
687 { X86::VSQRTPDYr, X86::VSQRTPDYm, 0 },
688 { X86::VSQRTPSYr, X86::VSQRTPSYm, 0 },
689 { X86::VTESTPDYrr, X86::VTESTPDYrm, 0 },
690 { X86::VTESTPSYrr, X86::VTESTPSYrm, 0 },
692 // AVX2 foldable instructions
694 // VBROADCASTS{SD}rr register instructions were an AVX2 addition while the
695 // VBROADCASTS{SD}rm memory instructions were available from AVX1.
696 // TB_NO_REVERSE prevents unfolding from introducing an illegal instruction
697 // on AVX1 targets. The VPBROADCAST instructions are all AVX2 instructions
698 // so they don't need an equivalent limitation.
699 { X86::VBROADCASTSSrr, X86::VBROADCASTSSrm, TB_NO_REVERSE },
700 { X86::VBROADCASTSSYrr, X86::VBROADCASTSSYrm, TB_NO_REVERSE },
701 { X86::VBROADCASTSDYrr, X86::VBROADCASTSDYrm, TB_NO_REVERSE },
702 { X86::VPABSBrr256, X86::VPABSBrm256, 0 },
703 { X86::VPABSDrr256, X86::VPABSDrm256, 0 },
704 { X86::VPABSWrr256, X86::VPABSWrm256, 0 },
705 { X86::VPBROADCASTBrr, X86::VPBROADCASTBrm, 0 },
706 { X86::VPBROADCASTBYrr, X86::VPBROADCASTBYrm, 0 },
707 { X86::VPBROADCASTDrr, X86::VPBROADCASTDrm, 0 },
708 { X86::VPBROADCASTDYrr, X86::VPBROADCASTDYrm, 0 },
709 { X86::VPBROADCASTQrr, X86::VPBROADCASTQrm, 0 },
710 { X86::VPBROADCASTQYrr, X86::VPBROADCASTQYrm, 0 },
711 { X86::VPBROADCASTWrr, X86::VPBROADCASTWrm, 0 },
712 { X86::VPBROADCASTWYrr, X86::VPBROADCASTWYrm, 0 },
713 { X86::VPERMPDYri, X86::VPERMPDYmi, 0 },
714 { X86::VPERMQYri, X86::VPERMQYmi, 0 },
715 { X86::VPMOVSXBDYrr, X86::VPMOVSXBDYrm, 0 },
716 { X86::VPMOVSXBQYrr, X86::VPMOVSXBQYrm, 0 },
717 { X86::VPMOVSXBWYrr, X86::VPMOVSXBWYrm, 0 },
718 { X86::VPMOVSXDQYrr, X86::VPMOVSXDQYrm, 0 },
719 { X86::VPMOVSXWDYrr, X86::VPMOVSXWDYrm, 0 },
720 { X86::VPMOVSXWQYrr, X86::VPMOVSXWQYrm, 0 },
721 { X86::VPMOVZXBDYrr, X86::VPMOVZXBDYrm, 0 },
722 { X86::VPMOVZXBQYrr, X86::VPMOVZXBQYrm, 0 },
723 { X86::VPMOVZXBWYrr, X86::VPMOVZXBWYrm, 0 },
724 { X86::VPMOVZXDQYrr, X86::VPMOVZXDQYrm, 0 },
725 { X86::VPMOVZXWDYrr, X86::VPMOVZXWDYrm, 0 },
726 { X86::VPMOVZXWQYrr, X86::VPMOVZXWQYrm, 0 },
727 { X86::VPSHUFDYri, X86::VPSHUFDYmi, 0 },
728 { X86::VPSHUFHWYri, X86::VPSHUFHWYmi, 0 },
729 { X86::VPSHUFLWYri, X86::VPSHUFLWYmi, 0 },
731 // XOP foldable instructions
732 { X86::VFRCZPDrr, X86::VFRCZPDrm, 0 },
733 { X86::VFRCZPDrrY, X86::VFRCZPDrmY, 0 },
734 { X86::VFRCZPSrr, X86::VFRCZPSrm, 0 },
735 { X86::VFRCZPSrrY, X86::VFRCZPSrmY, 0 },
736 { X86::VFRCZSDrr, X86::VFRCZSDrm, 0 },
737 { X86::VFRCZSSrr, X86::VFRCZSSrm, 0 },
738 { X86::VPHADDBDrr, X86::VPHADDBDrm, 0 },
739 { X86::VPHADDBQrr, X86::VPHADDBQrm, 0 },
740 { X86::VPHADDBWrr, X86::VPHADDBWrm, 0 },
741 { X86::VPHADDDQrr, X86::VPHADDDQrm, 0 },
742 { X86::VPHADDWDrr, X86::VPHADDWDrm, 0 },
743 { X86::VPHADDWQrr, X86::VPHADDWQrm, 0 },
744 { X86::VPHADDUBDrr, X86::VPHADDUBDrm, 0 },
745 { X86::VPHADDUBQrr, X86::VPHADDUBQrm, 0 },
746 { X86::VPHADDUBWrr, X86::VPHADDUBWrm, 0 },
747 { X86::VPHADDUDQrr, X86::VPHADDUDQrm, 0 },
748 { X86::VPHADDUWDrr, X86::VPHADDUWDrm, 0 },
749 { X86::VPHADDUWQrr, X86::VPHADDUWQrm, 0 },
750 { X86::VPHSUBBWrr, X86::VPHSUBBWrm, 0 },
751 { X86::VPHSUBDQrr, X86::VPHSUBDQrm, 0 },
752 { X86::VPHSUBWDrr, X86::VPHSUBWDrm, 0 },
753 { X86::VPROTBri, X86::VPROTBmi, 0 },
754 { X86::VPROTBrr, X86::VPROTBmr, 0 },
755 { X86::VPROTDri, X86::VPROTDmi, 0 },
756 { X86::VPROTDrr, X86::VPROTDmr, 0 },
757 { X86::VPROTQri, X86::VPROTQmi, 0 },
758 { X86::VPROTQrr, X86::VPROTQmr, 0 },
759 { X86::VPROTWri, X86::VPROTWmi, 0 },
760 { X86::VPROTWrr, X86::VPROTWmr, 0 },
761 { X86::VPSHABrr, X86::VPSHABmr, 0 },
762 { X86::VPSHADrr, X86::VPSHADmr, 0 },
763 { X86::VPSHAQrr, X86::VPSHAQmr, 0 },
764 { X86::VPSHAWrr, X86::VPSHAWmr, 0 },
765 { X86::VPSHLBrr, X86::VPSHLBmr, 0 },
766 { X86::VPSHLDrr, X86::VPSHLDmr, 0 },
767 { X86::VPSHLQrr, X86::VPSHLQmr, 0 },
768 { X86::VPSHLWrr, X86::VPSHLWmr, 0 },
770 // BMI/BMI2/LZCNT/POPCNT/TBM foldable instructions
771 { X86::BEXTR32rr, X86::BEXTR32rm, 0 },
772 { X86::BEXTR64rr, X86::BEXTR64rm, 0 },
773 { X86::BEXTRI32ri, X86::BEXTRI32mi, 0 },
774 { X86::BEXTRI64ri, X86::BEXTRI64mi, 0 },
775 { X86::BLCFILL32rr, X86::BLCFILL32rm, 0 },
776 { X86::BLCFILL64rr, X86::BLCFILL64rm, 0 },
777 { X86::BLCI32rr, X86::BLCI32rm, 0 },
778 { X86::BLCI64rr, X86::BLCI64rm, 0 },
779 { X86::BLCIC32rr, X86::BLCIC32rm, 0 },
780 { X86::BLCIC64rr, X86::BLCIC64rm, 0 },
781 { X86::BLCMSK32rr, X86::BLCMSK32rm, 0 },
782 { X86::BLCMSK64rr, X86::BLCMSK64rm, 0 },
783 { X86::BLCS32rr, X86::BLCS32rm, 0 },
784 { X86::BLCS64rr, X86::BLCS64rm, 0 },
785 { X86::BLSFILL32rr, X86::BLSFILL32rm, 0 },
786 { X86::BLSFILL64rr, X86::BLSFILL64rm, 0 },
787 { X86::BLSI32rr, X86::BLSI32rm, 0 },
788 { X86::BLSI64rr, X86::BLSI64rm, 0 },
789 { X86::BLSIC32rr, X86::BLSIC32rm, 0 },
790 { X86::BLSIC64rr, X86::BLSIC64rm, 0 },
791 { X86::BLSMSK32rr, X86::BLSMSK32rm, 0 },
792 { X86::BLSMSK64rr, X86::BLSMSK64rm, 0 },
793 { X86::BLSR32rr, X86::BLSR32rm, 0 },
794 { X86::BLSR64rr, X86::BLSR64rm, 0 },
795 { X86::BZHI32rr, X86::BZHI32rm, 0 },
796 { X86::BZHI64rr, X86::BZHI64rm, 0 },
797 { X86::LZCNT16rr, X86::LZCNT16rm, 0 },
798 { X86::LZCNT32rr, X86::LZCNT32rm, 0 },
799 { X86::LZCNT64rr, X86::LZCNT64rm, 0 },
800 { X86::POPCNT16rr, X86::POPCNT16rm, 0 },
801 { X86::POPCNT32rr, X86::POPCNT32rm, 0 },
802 { X86::POPCNT64rr, X86::POPCNT64rm, 0 },
803 { X86::RORX32ri, X86::RORX32mi, 0 },
804 { X86::RORX64ri, X86::RORX64mi, 0 },
805 { X86::SARX32rr, X86::SARX32rm, 0 },
806 { X86::SARX64rr, X86::SARX64rm, 0 },
807 { X86::SHRX32rr, X86::SHRX32rm, 0 },
808 { X86::SHRX64rr, X86::SHRX64rm, 0 },
809 { X86::SHLX32rr, X86::SHLX32rm, 0 },
810 { X86::SHLX64rr, X86::SHLX64rm, 0 },
811 { X86::T1MSKC32rr, X86::T1MSKC32rm, 0 },
812 { X86::T1MSKC64rr, X86::T1MSKC64rm, 0 },
813 { X86::TZCNT16rr, X86::TZCNT16rm, 0 },
814 { X86::TZCNT32rr, X86::TZCNT32rm, 0 },
815 { X86::TZCNT64rr, X86::TZCNT64rm, 0 },
816 { X86::TZMSK32rr, X86::TZMSK32rm, 0 },
817 { X86::TZMSK64rr, X86::TZMSK64rm, 0 },
819 // AVX-512 foldable instructions
820 { X86::VMOV64toPQIZrr, X86::VMOVQI2PQIZrm, 0 },
821 { X86::VMOVDI2SSZrr, X86::VMOVDI2SSZrm, 0 },
822 { X86::VMOVAPDZrr, X86::VMOVAPDZrm, TB_ALIGN_64 },
823 { X86::VMOVAPSZrr, X86::VMOVAPSZrm, TB_ALIGN_64 },
824 { X86::VMOVDQA32Zrr, X86::VMOVDQA32Zrm, TB_ALIGN_64 },
825 { X86::VMOVDQA64Zrr, X86::VMOVDQA64Zrm, TB_ALIGN_64 },
826 { X86::VMOVDQU8Zrr, X86::VMOVDQU8Zrm, 0 },
827 { X86::VMOVDQU16Zrr, X86::VMOVDQU16Zrm, 0 },
828 { X86::VMOVDQU32Zrr, X86::VMOVDQU32Zrm, 0 },
829 { X86::VMOVDQU64Zrr, X86::VMOVDQU64Zrm, 0 },
830 { X86::VMOVUPDZrr, X86::VMOVUPDZrm, 0 },
831 { X86::VMOVUPSZrr, X86::VMOVUPSZrm, 0 },
832 { X86::VPABSDZrr, X86::VPABSDZrm, 0 },
833 { X86::VPABSQZrr, X86::VPABSQZrm, 0 },
834 { X86::VBROADCASTSSZr, X86::VBROADCASTSSZm, TB_NO_REVERSE },
835 { X86::VBROADCASTSSZr_s, X86::VBROADCASTSSZm, TB_NO_REVERSE },
836 { X86::VBROADCASTSDZr, X86::VBROADCASTSDZm, TB_NO_REVERSE },
837 { X86::VBROADCASTSDZr_s, X86::VBROADCASTSDZm, TB_NO_REVERSE },
839 // AVX-512 foldable instructions (256-bit versions)
840 { X86::VMOVAPDZ256rr, X86::VMOVAPDZ256rm, TB_ALIGN_32 },
841 { X86::VMOVAPSZ256rr, X86::VMOVAPSZ256rm, TB_ALIGN_32 },
842 { X86::VMOVDQA32Z256rr, X86::VMOVDQA32Z256rm, TB_ALIGN_32 },
843 { X86::VMOVDQA64Z256rr, X86::VMOVDQA64Z256rm, TB_ALIGN_32 },
844 { X86::VMOVDQU8Z256rr, X86::VMOVDQU8Z256rm, 0 },
845 { X86::VMOVDQU16Z256rr, X86::VMOVDQU16Z256rm, 0 },
846 { X86::VMOVDQU32Z256rr, X86::VMOVDQU32Z256rm, 0 },
847 { X86::VMOVDQU64Z256rr, X86::VMOVDQU64Z256rm, 0 },
848 { X86::VMOVUPDZ256rr, X86::VMOVUPDZ256rm, 0 },
849 { X86::VMOVUPSZ256rr, X86::VMOVUPSZ256rm, 0 },
850 { X86::VBROADCASTSSZ256r, X86::VBROADCASTSSZ256m, TB_NO_REVERSE },
851 { X86::VBROADCASTSSZ256r_s, X86::VBROADCASTSSZ256m, TB_NO_REVERSE },
852 { X86::VBROADCASTSDZ256r, X86::VBROADCASTSDZ256m, TB_NO_REVERSE },
853 { X86::VBROADCASTSDZ256r_s, X86::VBROADCASTSDZ256m, TB_NO_REVERSE },
855 // AVX-512 foldable instructions (128-bit versions)
856 { X86::VMOVAPDZ128rr, X86::VMOVAPDZ128rm, TB_ALIGN_16 },
857 { X86::VMOVAPSZ128rr, X86::VMOVAPSZ128rm, TB_ALIGN_16 },
858 { X86::VMOVDQA32Z128rr, X86::VMOVDQA32Z128rm, TB_ALIGN_16 },
859 { X86::VMOVDQA64Z128rr, X86::VMOVDQA64Z128rm, TB_ALIGN_16 },
860 { X86::VMOVDQU8Z128rr, X86::VMOVDQU8Z128rm, 0 },
861 { X86::VMOVDQU16Z128rr, X86::VMOVDQU16Z128rm, 0 },
862 { X86::VMOVDQU32Z128rr, X86::VMOVDQU32Z128rm, 0 },
863 { X86::VMOVDQU64Z128rr, X86::VMOVDQU64Z128rm, 0 },
864 { X86::VMOVUPDZ128rr, X86::VMOVUPDZ128rm, 0 },
865 { X86::VMOVUPSZ128rr, X86::VMOVUPSZ128rm, 0 },
866 { X86::VBROADCASTSSZ128r, X86::VBROADCASTSSZ128m, TB_NO_REVERSE },
867 { X86::VBROADCASTSSZ128r_s, X86::VBROADCASTSSZ128m, TB_NO_REVERSE },
868 // F16C foldable instructions
869 { X86::VCVTPH2PSrr, X86::VCVTPH2PSrm, 0 },
870 { X86::VCVTPH2PSYrr, X86::VCVTPH2PSYrm, 0 },
872 // AES foldable instructions
873 { X86::AESIMCrr, X86::AESIMCrm, TB_ALIGN_16 },
874 { X86::AESKEYGENASSIST128rr, X86::AESKEYGENASSIST128rm, TB_ALIGN_16 },
875 { X86::VAESIMCrr, X86::VAESIMCrm, 0 },
876 { X86::VAESKEYGENASSIST128rr, X86::VAESKEYGENASSIST128rm, 0 }
879 for (X86MemoryFoldTableEntry Entry : MemoryFoldTable1) {
880 AddTableEntry(RegOp2MemOpTable1, MemOp2RegOpTable,
881 Entry.RegOp, Entry.MemOp,
882 // Index 1, folded load
883 Entry.Flags | TB_INDEX_1 | TB_FOLDED_LOAD);
886 static const X86MemoryFoldTableEntry MemoryFoldTable2[] = {
887 { X86::ADC32rr, X86::ADC32rm, 0 },
888 { X86::ADC64rr, X86::ADC64rm, 0 },
889 { X86::ADD16rr, X86::ADD16rm, 0 },
890 { X86::ADD16rr_DB, X86::ADD16rm, TB_NO_REVERSE },
891 { X86::ADD32rr, X86::ADD32rm, 0 },
892 { X86::ADD32rr_DB, X86::ADD32rm, TB_NO_REVERSE },
893 { X86::ADD64rr, X86::ADD64rm, 0 },
894 { X86::ADD64rr_DB, X86::ADD64rm, TB_NO_REVERSE },
895 { X86::ADD8rr, X86::ADD8rm, 0 },
896 { X86::ADDPDrr, X86::ADDPDrm, TB_ALIGN_16 },
897 { X86::ADDPSrr, X86::ADDPSrm, TB_ALIGN_16 },
898 { X86::ADDSDrr, X86::ADDSDrm, 0 },
899 { X86::ADDSDrr_Int, X86::ADDSDrm_Int, 0 },
900 { X86::ADDSSrr, X86::ADDSSrm, 0 },
901 { X86::ADDSSrr_Int, X86::ADDSSrm_Int, 0 },
902 { X86::ADDSUBPDrr, X86::ADDSUBPDrm, TB_ALIGN_16 },
903 { X86::ADDSUBPSrr, X86::ADDSUBPSrm, TB_ALIGN_16 },
904 { X86::AND16rr, X86::AND16rm, 0 },
905 { X86::AND32rr, X86::AND32rm, 0 },
906 { X86::AND64rr, X86::AND64rm, 0 },
907 { X86::AND8rr, X86::AND8rm, 0 },
908 { X86::ANDNPDrr, X86::ANDNPDrm, TB_ALIGN_16 },
909 { X86::ANDNPSrr, X86::ANDNPSrm, TB_ALIGN_16 },
910 { X86::ANDPDrr, X86::ANDPDrm, TB_ALIGN_16 },
911 { X86::ANDPSrr, X86::ANDPSrm, TB_ALIGN_16 },
912 { X86::BLENDPDrri, X86::BLENDPDrmi, TB_ALIGN_16 },
913 { X86::BLENDPSrri, X86::BLENDPSrmi, TB_ALIGN_16 },
914 { X86::BLENDVPDrr0, X86::BLENDVPDrm0, TB_ALIGN_16 },
915 { X86::BLENDVPSrr0, X86::BLENDVPSrm0, TB_ALIGN_16 },
916 { X86::CMOVA16rr, X86::CMOVA16rm, 0 },
917 { X86::CMOVA32rr, X86::CMOVA32rm, 0 },
918 { X86::CMOVA64rr, X86::CMOVA64rm, 0 },
919 { X86::CMOVAE16rr, X86::CMOVAE16rm, 0 },
920 { X86::CMOVAE32rr, X86::CMOVAE32rm, 0 },
921 { X86::CMOVAE64rr, X86::CMOVAE64rm, 0 },
922 { X86::CMOVB16rr, X86::CMOVB16rm, 0 },
923 { X86::CMOVB32rr, X86::CMOVB32rm, 0 },
924 { X86::CMOVB64rr, X86::CMOVB64rm, 0 },
925 { X86::CMOVBE16rr, X86::CMOVBE16rm, 0 },
926 { X86::CMOVBE32rr, X86::CMOVBE32rm, 0 },
927 { X86::CMOVBE64rr, X86::CMOVBE64rm, 0 },
928 { X86::CMOVE16rr, X86::CMOVE16rm, 0 },
929 { X86::CMOVE32rr, X86::CMOVE32rm, 0 },
930 { X86::CMOVE64rr, X86::CMOVE64rm, 0 },
931 { X86::CMOVG16rr, X86::CMOVG16rm, 0 },
932 { X86::CMOVG32rr, X86::CMOVG32rm, 0 },
933 { X86::CMOVG64rr, X86::CMOVG64rm, 0 },
934 { X86::CMOVGE16rr, X86::CMOVGE16rm, 0 },
935 { X86::CMOVGE32rr, X86::CMOVGE32rm, 0 },
936 { X86::CMOVGE64rr, X86::CMOVGE64rm, 0 },
937 { X86::CMOVL16rr, X86::CMOVL16rm, 0 },
938 { X86::CMOVL32rr, X86::CMOVL32rm, 0 },
939 { X86::CMOVL64rr, X86::CMOVL64rm, 0 },
940 { X86::CMOVLE16rr, X86::CMOVLE16rm, 0 },
941 { X86::CMOVLE32rr, X86::CMOVLE32rm, 0 },
942 { X86::CMOVLE64rr, X86::CMOVLE64rm, 0 },
943 { X86::CMOVNE16rr, X86::CMOVNE16rm, 0 },
944 { X86::CMOVNE32rr, X86::CMOVNE32rm, 0 },
945 { X86::CMOVNE64rr, X86::CMOVNE64rm, 0 },
946 { X86::CMOVNO16rr, X86::CMOVNO16rm, 0 },
947 { X86::CMOVNO32rr, X86::CMOVNO32rm, 0 },
948 { X86::CMOVNO64rr, X86::CMOVNO64rm, 0 },
949 { X86::CMOVNP16rr, X86::CMOVNP16rm, 0 },
950 { X86::CMOVNP32rr, X86::CMOVNP32rm, 0 },
951 { X86::CMOVNP64rr, X86::CMOVNP64rm, 0 },
952 { X86::CMOVNS16rr, X86::CMOVNS16rm, 0 },
953 { X86::CMOVNS32rr, X86::CMOVNS32rm, 0 },
954 { X86::CMOVNS64rr, X86::CMOVNS64rm, 0 },
955 { X86::CMOVO16rr, X86::CMOVO16rm, 0 },
956 { X86::CMOVO32rr, X86::CMOVO32rm, 0 },
957 { X86::CMOVO64rr, X86::CMOVO64rm, 0 },
958 { X86::CMOVP16rr, X86::CMOVP16rm, 0 },
959 { X86::CMOVP32rr, X86::CMOVP32rm, 0 },
960 { X86::CMOVP64rr, X86::CMOVP64rm, 0 },
961 { X86::CMOVS16rr, X86::CMOVS16rm, 0 },
962 { X86::CMOVS32rr, X86::CMOVS32rm, 0 },
963 { X86::CMOVS64rr, X86::CMOVS64rm, 0 },
964 { X86::CMPPDrri, X86::CMPPDrmi, TB_ALIGN_16 },
965 { X86::CMPPSrri, X86::CMPPSrmi, TB_ALIGN_16 },
966 { X86::CMPSDrr, X86::CMPSDrm, 0 },
967 { X86::CMPSSrr, X86::CMPSSrm, 0 },
968 { X86::CRC32r32r32, X86::CRC32r32m32, 0 },
969 { X86::CRC32r64r64, X86::CRC32r64m64, 0 },
970 { X86::DIVPDrr, X86::DIVPDrm, TB_ALIGN_16 },
971 { X86::DIVPSrr, X86::DIVPSrm, TB_ALIGN_16 },
972 { X86::DIVSDrr, X86::DIVSDrm, 0 },
973 { X86::DIVSDrr_Int, X86::DIVSDrm_Int, 0 },
974 { X86::DIVSSrr, X86::DIVSSrm, 0 },
975 { X86::DIVSSrr_Int, X86::DIVSSrm_Int, 0 },
976 { X86::DPPDrri, X86::DPPDrmi, TB_ALIGN_16 },
977 { X86::DPPSrri, X86::DPPSrmi, TB_ALIGN_16 },
979 // Do not fold Fs* scalar logical op loads because there are no scalar
980 // load variants for these instructions. When folded, the load is required
981 // to be 128-bits, so the load size would not match.
983 { X86::FvANDNPDrr, X86::FvANDNPDrm, TB_ALIGN_16 },
984 { X86::FvANDNPSrr, X86::FvANDNPSrm, TB_ALIGN_16 },
985 { X86::FvANDPDrr, X86::FvANDPDrm, TB_ALIGN_16 },
986 { X86::FvANDPSrr, X86::FvANDPSrm, TB_ALIGN_16 },
987 { X86::FvORPDrr, X86::FvORPDrm, TB_ALIGN_16 },
988 { X86::FvORPSrr, X86::FvORPSrm, TB_ALIGN_16 },
989 { X86::FvXORPDrr, X86::FvXORPDrm, TB_ALIGN_16 },
990 { X86::FvXORPSrr, X86::FvXORPSrm, TB_ALIGN_16 },
991 { X86::HADDPDrr, X86::HADDPDrm, TB_ALIGN_16 },
992 { X86::HADDPSrr, X86::HADDPSrm, TB_ALIGN_16 },
993 { X86::HSUBPDrr, X86::HSUBPDrm, TB_ALIGN_16 },
994 { X86::HSUBPSrr, X86::HSUBPSrm, TB_ALIGN_16 },
995 { X86::IMUL16rr, X86::IMUL16rm, 0 },
996 { X86::IMUL32rr, X86::IMUL32rm, 0 },
997 { X86::IMUL64rr, X86::IMUL64rm, 0 },
998 { X86::Int_CMPSDrr, X86::Int_CMPSDrm, 0 },
999 { X86::Int_CMPSSrr, X86::Int_CMPSSrm, 0 },
1000 { X86::Int_CVTSD2SSrr, X86::Int_CVTSD2SSrm, 0 },
1001 { X86::Int_CVTSI2SD64rr,X86::Int_CVTSI2SD64rm, 0 },
1002 { X86::Int_CVTSI2SDrr, X86::Int_CVTSI2SDrm, 0 },
1003 { X86::Int_CVTSI2SS64rr,X86::Int_CVTSI2SS64rm, 0 },
1004 { X86::Int_CVTSI2SSrr, X86::Int_CVTSI2SSrm, 0 },
1005 { X86::Int_CVTSS2SDrr, X86::Int_CVTSS2SDrm, 0 },
1006 { X86::MAXPDrr, X86::MAXPDrm, TB_ALIGN_16 },
1007 { X86::MAXPSrr, X86::MAXPSrm, TB_ALIGN_16 },
1008 { X86::MAXSDrr, X86::MAXSDrm, 0 },
1009 { X86::MAXSDrr_Int, X86::MAXSDrm_Int, 0 },
1010 { X86::MAXSSrr, X86::MAXSSrm, 0 },
1011 { X86::MAXSSrr_Int, X86::MAXSSrm_Int, 0 },
1012 { X86::MINPDrr, X86::MINPDrm, TB_ALIGN_16 },
1013 { X86::MINPSrr, X86::MINPSrm, TB_ALIGN_16 },
1014 { X86::MINSDrr, X86::MINSDrm, 0 },
1015 { X86::MINSDrr_Int, X86::MINSDrm_Int, 0 },
1016 { X86::MINSSrr, X86::MINSSrm, 0 },
1017 { X86::MINSSrr_Int, X86::MINSSrm_Int, 0 },
1018 { X86::MOVLHPSrr, X86::MOVHPSrm, TB_NO_REVERSE },
1019 { X86::MPSADBWrri, X86::MPSADBWrmi, TB_ALIGN_16 },
1020 { X86::MULPDrr, X86::MULPDrm, TB_ALIGN_16 },
1021 { X86::MULPSrr, X86::MULPSrm, TB_ALIGN_16 },
1022 { X86::MULSDrr, X86::MULSDrm, 0 },
1023 { X86::MULSDrr_Int, X86::MULSDrm_Int, 0 },
1024 { X86::MULSSrr, X86::MULSSrm, 0 },
1025 { X86::MULSSrr_Int, X86::MULSSrm_Int, 0 },
1026 { X86::OR16rr, X86::OR16rm, 0 },
1027 { X86::OR32rr, X86::OR32rm, 0 },
1028 { X86::OR64rr, X86::OR64rm, 0 },
1029 { X86::OR8rr, X86::OR8rm, 0 },
1030 { X86::ORPDrr, X86::ORPDrm, TB_ALIGN_16 },
1031 { X86::ORPSrr, X86::ORPSrm, TB_ALIGN_16 },
1032 { X86::PACKSSDWrr, X86::PACKSSDWrm, TB_ALIGN_16 },
1033 { X86::PACKSSWBrr, X86::PACKSSWBrm, TB_ALIGN_16 },
1034 { X86::PACKUSDWrr, X86::PACKUSDWrm, TB_ALIGN_16 },
1035 { X86::PACKUSWBrr, X86::PACKUSWBrm, TB_ALIGN_16 },
1036 { X86::PADDBrr, X86::PADDBrm, TB_ALIGN_16 },
1037 { X86::PADDDrr, X86::PADDDrm, TB_ALIGN_16 },
1038 { X86::PADDQrr, X86::PADDQrm, TB_ALIGN_16 },
1039 { X86::PADDSBrr, X86::PADDSBrm, TB_ALIGN_16 },
1040 { X86::PADDSWrr, X86::PADDSWrm, TB_ALIGN_16 },
1041 { X86::PADDUSBrr, X86::PADDUSBrm, TB_ALIGN_16 },
1042 { X86::PADDUSWrr, X86::PADDUSWrm, TB_ALIGN_16 },
1043 { X86::PADDWrr, X86::PADDWrm, TB_ALIGN_16 },
1044 { X86::PALIGNRrri, X86::PALIGNRrmi, TB_ALIGN_16 },
1045 { X86::PANDNrr, X86::PANDNrm, TB_ALIGN_16 },
1046 { X86::PANDrr, X86::PANDrm, TB_ALIGN_16 },
1047 { X86::PAVGBrr, X86::PAVGBrm, TB_ALIGN_16 },
1048 { X86::PAVGWrr, X86::PAVGWrm, TB_ALIGN_16 },
1049 { X86::PBLENDVBrr0, X86::PBLENDVBrm0, TB_ALIGN_16 },
1050 { X86::PBLENDWrri, X86::PBLENDWrmi, TB_ALIGN_16 },
1051 { X86::PCLMULQDQrr, X86::PCLMULQDQrm, TB_ALIGN_16 },
1052 { X86::PCMPEQBrr, X86::PCMPEQBrm, TB_ALIGN_16 },
1053 { X86::PCMPEQDrr, X86::PCMPEQDrm, TB_ALIGN_16 },
1054 { X86::PCMPEQQrr, X86::PCMPEQQrm, TB_ALIGN_16 },
1055 { X86::PCMPEQWrr, X86::PCMPEQWrm, TB_ALIGN_16 },
1056 { X86::PCMPGTBrr, X86::PCMPGTBrm, TB_ALIGN_16 },
1057 { X86::PCMPGTDrr, X86::PCMPGTDrm, TB_ALIGN_16 },
1058 { X86::PCMPGTQrr, X86::PCMPGTQrm, TB_ALIGN_16 },
1059 { X86::PCMPGTWrr, X86::PCMPGTWrm, TB_ALIGN_16 },
1060 { X86::PHADDDrr, X86::PHADDDrm, TB_ALIGN_16 },
1061 { X86::PHADDWrr, X86::PHADDWrm, TB_ALIGN_16 },
1062 { X86::PHADDSWrr128, X86::PHADDSWrm128, TB_ALIGN_16 },
1063 { X86::PHSUBDrr, X86::PHSUBDrm, TB_ALIGN_16 },
1064 { X86::PHSUBSWrr128, X86::PHSUBSWrm128, TB_ALIGN_16 },
1065 { X86::PHSUBWrr, X86::PHSUBWrm, TB_ALIGN_16 },
1066 { X86::PINSRBrr, X86::PINSRBrm, 0 },
1067 { X86::PINSRDrr, X86::PINSRDrm, 0 },
1068 { X86::PINSRQrr, X86::PINSRQrm, 0 },
1069 { X86::PINSRWrri, X86::PINSRWrmi, 0 },
1070 { X86::PMADDUBSWrr128, X86::PMADDUBSWrm128, TB_ALIGN_16 },
1071 { X86::PMADDWDrr, X86::PMADDWDrm, TB_ALIGN_16 },
1072 { X86::PMAXSWrr, X86::PMAXSWrm, TB_ALIGN_16 },
1073 { X86::PMAXUBrr, X86::PMAXUBrm, TB_ALIGN_16 },
1074 { X86::PMINSWrr, X86::PMINSWrm, TB_ALIGN_16 },
1075 { X86::PMINUBrr, X86::PMINUBrm, TB_ALIGN_16 },
1076 { X86::PMINSBrr, X86::PMINSBrm, TB_ALIGN_16 },
1077 { X86::PMINSDrr, X86::PMINSDrm, TB_ALIGN_16 },
1078 { X86::PMINUDrr, X86::PMINUDrm, TB_ALIGN_16 },
1079 { X86::PMINUWrr, X86::PMINUWrm, TB_ALIGN_16 },
1080 { X86::PMAXSBrr, X86::PMAXSBrm, TB_ALIGN_16 },
1081 { X86::PMAXSDrr, X86::PMAXSDrm, TB_ALIGN_16 },
1082 { X86::PMAXUDrr, X86::PMAXUDrm, TB_ALIGN_16 },
1083 { X86::PMAXUWrr, X86::PMAXUWrm, TB_ALIGN_16 },
1084 { X86::PMULDQrr, X86::PMULDQrm, TB_ALIGN_16 },
1085 { X86::PMULHRSWrr128, X86::PMULHRSWrm128, TB_ALIGN_16 },
1086 { X86::PMULHUWrr, X86::PMULHUWrm, TB_ALIGN_16 },
1087 { X86::PMULHWrr, X86::PMULHWrm, TB_ALIGN_16 },
1088 { X86::PMULLDrr, X86::PMULLDrm, TB_ALIGN_16 },
1089 { X86::PMULLWrr, X86::PMULLWrm, TB_ALIGN_16 },
1090 { X86::PMULUDQrr, X86::PMULUDQrm, TB_ALIGN_16 },
1091 { X86::PORrr, X86::PORrm, TB_ALIGN_16 },
1092 { X86::PSADBWrr, X86::PSADBWrm, TB_ALIGN_16 },
1093 { X86::PSHUFBrr, X86::PSHUFBrm, TB_ALIGN_16 },
1094 { X86::PSIGNBrr128, X86::PSIGNBrm128, TB_ALIGN_16 },
1095 { X86::PSIGNWrr128, X86::PSIGNWrm128, TB_ALIGN_16 },
1096 { X86::PSIGNDrr128, X86::PSIGNDrm128, TB_ALIGN_16 },
1097 { X86::PSLLDrr, X86::PSLLDrm, TB_ALIGN_16 },
1098 { X86::PSLLQrr, X86::PSLLQrm, TB_ALIGN_16 },
1099 { X86::PSLLWrr, X86::PSLLWrm, TB_ALIGN_16 },
1100 { X86::PSRADrr, X86::PSRADrm, TB_ALIGN_16 },
1101 { X86::PSRAWrr, X86::PSRAWrm, TB_ALIGN_16 },
1102 { X86::PSRLDrr, X86::PSRLDrm, TB_ALIGN_16 },
1103 { X86::PSRLQrr, X86::PSRLQrm, TB_ALIGN_16 },
1104 { X86::PSRLWrr, X86::PSRLWrm, TB_ALIGN_16 },
1105 { X86::PSUBBrr, X86::PSUBBrm, TB_ALIGN_16 },
1106 { X86::PSUBDrr, X86::PSUBDrm, TB_ALIGN_16 },
1107 { X86::PSUBQrr, X86::PSUBQrm, TB_ALIGN_16 },
1108 { X86::PSUBSBrr, X86::PSUBSBrm, TB_ALIGN_16 },
1109 { X86::PSUBSWrr, X86::PSUBSWrm, TB_ALIGN_16 },
1110 { X86::PSUBUSBrr, X86::PSUBUSBrm, TB_ALIGN_16 },
1111 { X86::PSUBUSWrr, X86::PSUBUSWrm, TB_ALIGN_16 },
1112 { X86::PSUBWrr, X86::PSUBWrm, TB_ALIGN_16 },
1113 { X86::PUNPCKHBWrr, X86::PUNPCKHBWrm, TB_ALIGN_16 },
1114 { X86::PUNPCKHDQrr, X86::PUNPCKHDQrm, TB_ALIGN_16 },
1115 { X86::PUNPCKHQDQrr, X86::PUNPCKHQDQrm, TB_ALIGN_16 },
1116 { X86::PUNPCKHWDrr, X86::PUNPCKHWDrm, TB_ALIGN_16 },
1117 { X86::PUNPCKLBWrr, X86::PUNPCKLBWrm, TB_ALIGN_16 },
1118 { X86::PUNPCKLDQrr, X86::PUNPCKLDQrm, TB_ALIGN_16 },
1119 { X86::PUNPCKLQDQrr, X86::PUNPCKLQDQrm, TB_ALIGN_16 },
1120 { X86::PUNPCKLWDrr, X86::PUNPCKLWDrm, TB_ALIGN_16 },
1121 { X86::PXORrr, X86::PXORrm, TB_ALIGN_16 },
1122 { X86::ROUNDSDr, X86::ROUNDSDm, 0 },
1123 { X86::ROUNDSSr, X86::ROUNDSSm, 0 },
1124 { X86::SBB32rr, X86::SBB32rm, 0 },
1125 { X86::SBB64rr, X86::SBB64rm, 0 },
1126 { X86::SHUFPDrri, X86::SHUFPDrmi, TB_ALIGN_16 },
1127 { X86::SHUFPSrri, X86::SHUFPSrmi, TB_ALIGN_16 },
1128 { X86::SUB16rr, X86::SUB16rm, 0 },
1129 { X86::SUB32rr, X86::SUB32rm, 0 },
1130 { X86::SUB64rr, X86::SUB64rm, 0 },
1131 { X86::SUB8rr, X86::SUB8rm, 0 },
1132 { X86::SUBPDrr, X86::SUBPDrm, TB_ALIGN_16 },
1133 { X86::SUBPSrr, X86::SUBPSrm, TB_ALIGN_16 },
1134 { X86::SUBSDrr, X86::SUBSDrm, 0 },
1135 { X86::SUBSDrr_Int, X86::SUBSDrm_Int, 0 },
1136 { X86::SUBSSrr, X86::SUBSSrm, 0 },
1137 { X86::SUBSSrr_Int, X86::SUBSSrm_Int, 0 },
1138 // FIXME: TEST*rr -> swapped operand of TEST*mr.
1139 { X86::UNPCKHPDrr, X86::UNPCKHPDrm, TB_ALIGN_16 },
1140 { X86::UNPCKHPSrr, X86::UNPCKHPSrm, TB_ALIGN_16 },
1141 { X86::UNPCKLPDrr, X86::UNPCKLPDrm, TB_ALIGN_16 },
1142 { X86::UNPCKLPSrr, X86::UNPCKLPSrm, TB_ALIGN_16 },
1143 { X86::XOR16rr, X86::XOR16rm, 0 },
1144 { X86::XOR32rr, X86::XOR32rm, 0 },
1145 { X86::XOR64rr, X86::XOR64rm, 0 },
1146 { X86::XOR8rr, X86::XOR8rm, 0 },
1147 { X86::XORPDrr, X86::XORPDrm, TB_ALIGN_16 },
1148 { X86::XORPSrr, X86::XORPSrm, TB_ALIGN_16 },
1150 // MMX version of foldable instructions
1151 { X86::MMX_CVTPI2PSirr, X86::MMX_CVTPI2PSirm, 0 },
1152 { X86::MMX_PACKSSDWirr, X86::MMX_PACKSSDWirm, 0 },
1153 { X86::MMX_PACKSSWBirr, X86::MMX_PACKSSWBirm, 0 },
1154 { X86::MMX_PACKUSWBirr, X86::MMX_PACKUSWBirm, 0 },
1155 { X86::MMX_PADDBirr, X86::MMX_PADDBirm, 0 },
1156 { X86::MMX_PADDDirr, X86::MMX_PADDDirm, 0 },
1157 { X86::MMX_PADDQirr, X86::MMX_PADDQirm, 0 },
1158 { X86::MMX_PADDSBirr, X86::MMX_PADDSBirm, 0 },
1159 { X86::MMX_PADDSWirr, X86::MMX_PADDSWirm, 0 },
1160 { X86::MMX_PADDUSBirr, X86::MMX_PADDUSBirm, 0 },
1161 { X86::MMX_PADDUSWirr, X86::MMX_PADDUSWirm, 0 },
1162 { X86::MMX_PADDWirr, X86::MMX_PADDWirm, 0 },
1163 { X86::MMX_PALIGNR64irr, X86::MMX_PALIGNR64irm, 0 },
1164 { X86::MMX_PANDNirr, X86::MMX_PANDNirm, 0 },
1165 { X86::MMX_PANDirr, X86::MMX_PANDirm, 0 },
1166 { X86::MMX_PAVGBirr, X86::MMX_PAVGBirm, 0 },
1167 { X86::MMX_PAVGWirr, X86::MMX_PAVGWirm, 0 },
1168 { X86::MMX_PCMPEQBirr, X86::MMX_PCMPEQBirm, 0 },
1169 { X86::MMX_PCMPEQDirr, X86::MMX_PCMPEQDirm, 0 },
1170 { X86::MMX_PCMPEQWirr, X86::MMX_PCMPEQWirm, 0 },
1171 { X86::MMX_PCMPGTBirr, X86::MMX_PCMPGTBirm, 0 },
1172 { X86::MMX_PCMPGTDirr, X86::MMX_PCMPGTDirm, 0 },
1173 { X86::MMX_PCMPGTWirr, X86::MMX_PCMPGTWirm, 0 },
1174 { X86::MMX_PHADDSWrr64, X86::MMX_PHADDSWrm64, 0 },
1175 { X86::MMX_PHADDWrr64, X86::MMX_PHADDWrm64, 0 },
1176 { X86::MMX_PHADDrr64, X86::MMX_PHADDrm64, 0 },
1177 { X86::MMX_PHSUBDrr64, X86::MMX_PHSUBDrm64, 0 },
1178 { X86::MMX_PHSUBSWrr64, X86::MMX_PHSUBSWrm64, 0 },
1179 { X86::MMX_PHSUBWrr64, X86::MMX_PHSUBWrm64, 0 },
1180 { X86::MMX_PINSRWirri, X86::MMX_PINSRWirmi, 0 },
1181 { X86::MMX_PMADDUBSWrr64, X86::MMX_PMADDUBSWrm64, 0 },
1182 { X86::MMX_PMADDWDirr, X86::MMX_PMADDWDirm, 0 },
1183 { X86::MMX_PMAXSWirr, X86::MMX_PMAXSWirm, 0 },
1184 { X86::MMX_PMAXUBirr, X86::MMX_PMAXUBirm, 0 },
1185 { X86::MMX_PMINSWirr, X86::MMX_PMINSWirm, 0 },
1186 { X86::MMX_PMINUBirr, X86::MMX_PMINUBirm, 0 },
1187 { X86::MMX_PMULHRSWrr64, X86::MMX_PMULHRSWrm64, 0 },
1188 { X86::MMX_PMULHUWirr, X86::MMX_PMULHUWirm, 0 },
1189 { X86::MMX_PMULHWirr, X86::MMX_PMULHWirm, 0 },
1190 { X86::MMX_PMULLWirr, X86::MMX_PMULLWirm, 0 },
1191 { X86::MMX_PMULUDQirr, X86::MMX_PMULUDQirm, 0 },
1192 { X86::MMX_PORirr, X86::MMX_PORirm, 0 },
1193 { X86::MMX_PSADBWirr, X86::MMX_PSADBWirm, 0 },
1194 { X86::MMX_PSHUFBrr64, X86::MMX_PSHUFBrm64, 0 },
1195 { X86::MMX_PSIGNBrr64, X86::MMX_PSIGNBrm64, 0 },
1196 { X86::MMX_PSIGNDrr64, X86::MMX_PSIGNDrm64, 0 },
1197 { X86::MMX_PSIGNWrr64, X86::MMX_PSIGNWrm64, 0 },
1198 { X86::MMX_PSLLDrr, X86::MMX_PSLLDrm, 0 },
1199 { X86::MMX_PSLLQrr, X86::MMX_PSLLQrm, 0 },
1200 { X86::MMX_PSLLWrr, X86::MMX_PSLLWrm, 0 },
1201 { X86::MMX_PSRADrr, X86::MMX_PSRADrm, 0 },
1202 { X86::MMX_PSRAWrr, X86::MMX_PSRAWrm, 0 },
1203 { X86::MMX_PSRLDrr, X86::MMX_PSRLDrm, 0 },
1204 { X86::MMX_PSRLQrr, X86::MMX_PSRLQrm, 0 },
1205 { X86::MMX_PSRLWrr, X86::MMX_PSRLWrm, 0 },
1206 { X86::MMX_PSUBBirr, X86::MMX_PSUBBirm, 0 },
1207 { X86::MMX_PSUBDirr, X86::MMX_PSUBDirm, 0 },
1208 { X86::MMX_PSUBQirr, X86::MMX_PSUBQirm, 0 },
1209 { X86::MMX_PSUBSBirr, X86::MMX_PSUBSBirm, 0 },
1210 { X86::MMX_PSUBSWirr, X86::MMX_PSUBSWirm, 0 },
1211 { X86::MMX_PSUBUSBirr, X86::MMX_PSUBUSBirm, 0 },
1212 { X86::MMX_PSUBUSWirr, X86::MMX_PSUBUSWirm, 0 },
1213 { X86::MMX_PSUBWirr, X86::MMX_PSUBWirm, 0 },
1214 { X86::MMX_PUNPCKHBWirr, X86::MMX_PUNPCKHBWirm, 0 },
1215 { X86::MMX_PUNPCKHDQirr, X86::MMX_PUNPCKHDQirm, 0 },
1216 { X86::MMX_PUNPCKHWDirr, X86::MMX_PUNPCKHWDirm, 0 },
1217 { X86::MMX_PUNPCKLBWirr, X86::MMX_PUNPCKLBWirm, 0 },
1218 { X86::MMX_PUNPCKLDQirr, X86::MMX_PUNPCKLDQirm, 0 },
1219 { X86::MMX_PUNPCKLWDirr, X86::MMX_PUNPCKLWDirm, 0 },
1220 { X86::MMX_PXORirr, X86::MMX_PXORirm, 0 },
1222 // 3DNow! version of foldable instructions
1223 { X86::PAVGUSBrr, X86::PAVGUSBrm, 0 },
1224 { X86::PFACCrr, X86::PFACCrm, 0 },
1225 { X86::PFADDrr, X86::PFADDrm, 0 },
1226 { X86::PFCMPEQrr, X86::PFCMPEQrm, 0 },
1227 { X86::PFCMPGErr, X86::PFCMPGErm, 0 },
1228 { X86::PFCMPGTrr, X86::PFCMPGTrm, 0 },
1229 { X86::PFMAXrr, X86::PFMAXrm, 0 },
1230 { X86::PFMINrr, X86::PFMINrm, 0 },
1231 { X86::PFMULrr, X86::PFMULrm, 0 },
1232 { X86::PFNACCrr, X86::PFNACCrm, 0 },
1233 { X86::PFPNACCrr, X86::PFPNACCrm, 0 },
1234 { X86::PFRCPIT1rr, X86::PFRCPIT1rm, 0 },
1235 { X86::PFRCPIT2rr, X86::PFRCPIT2rm, 0 },
1236 { X86::PFRSQIT1rr, X86::PFRSQIT1rm, 0 },
1237 { X86::PFSUBrr, X86::PFSUBrm, 0 },
1238 { X86::PFSUBRrr, X86::PFSUBRrm, 0 },
1239 { X86::PMULHRWrr, X86::PMULHRWrm, 0 },
1241 // AVX 128-bit versions of foldable instructions
1242 { X86::VCVTSD2SSrr, X86::VCVTSD2SSrm, 0 },
1243 { X86::Int_VCVTSD2SSrr, X86::Int_VCVTSD2SSrm, 0 },
1244 { X86::VCVTSI2SD64rr, X86::VCVTSI2SD64rm, 0 },
1245 { X86::Int_VCVTSI2SD64rr, X86::Int_VCVTSI2SD64rm, 0 },
1246 { X86::VCVTSI2SDrr, X86::VCVTSI2SDrm, 0 },
1247 { X86::Int_VCVTSI2SDrr, X86::Int_VCVTSI2SDrm, 0 },
1248 { X86::VCVTSI2SS64rr, X86::VCVTSI2SS64rm, 0 },
1249 { X86::Int_VCVTSI2SS64rr, X86::Int_VCVTSI2SS64rm, 0 },
1250 { X86::VCVTSI2SSrr, X86::VCVTSI2SSrm, 0 },
1251 { X86::Int_VCVTSI2SSrr, X86::Int_VCVTSI2SSrm, 0 },
1252 { X86::VCVTSS2SDrr, X86::VCVTSS2SDrm, 0 },
1253 { X86::Int_VCVTSS2SDrr, X86::Int_VCVTSS2SDrm, 0 },
1254 { X86::VRCPSSr, X86::VRCPSSm, 0 },
1255 { X86::VRCPSSr_Int, X86::VRCPSSm_Int, 0 },
1256 { X86::VRSQRTSSr, X86::VRSQRTSSm, 0 },
1257 { X86::VRSQRTSSr_Int, X86::VRSQRTSSm_Int, 0 },
1258 { X86::VSQRTSDr, X86::VSQRTSDm, 0 },
1259 { X86::VSQRTSDr_Int, X86::VSQRTSDm_Int, 0 },
1260 { X86::VSQRTSSr, X86::VSQRTSSm, 0 },
1261 { X86::VSQRTSSr_Int, X86::VSQRTSSm_Int, 0 },
1262 { X86::VADDPDrr, X86::VADDPDrm, 0 },
1263 { X86::VADDPSrr, X86::VADDPSrm, 0 },
1264 { X86::VADDSDrr, X86::VADDSDrm, 0 },
1265 { X86::VADDSDrr_Int, X86::VADDSDrm_Int, 0 },
1266 { X86::VADDSSrr, X86::VADDSSrm, 0 },
1267 { X86::VADDSSrr_Int, X86::VADDSSrm_Int, 0 },
1268 { X86::VADDSUBPDrr, X86::VADDSUBPDrm, 0 },
1269 { X86::VADDSUBPSrr, X86::VADDSUBPSrm, 0 },
1270 { X86::VANDNPDrr, X86::VANDNPDrm, 0 },
1271 { X86::VANDNPSrr, X86::VANDNPSrm, 0 },
1272 { X86::VANDPDrr, X86::VANDPDrm, 0 },
1273 { X86::VANDPSrr, X86::VANDPSrm, 0 },
1274 { X86::VBLENDPDrri, X86::VBLENDPDrmi, 0 },
1275 { X86::VBLENDPSrri, X86::VBLENDPSrmi, 0 },
1276 { X86::VBLENDVPDrr, X86::VBLENDVPDrm, 0 },
1277 { X86::VBLENDVPSrr, X86::VBLENDVPSrm, 0 },
1278 { X86::VCMPPDrri, X86::VCMPPDrmi, 0 },
1279 { X86::VCMPPSrri, X86::VCMPPSrmi, 0 },
1280 { X86::VCMPSDrr, X86::VCMPSDrm, 0 },
1281 { X86::VCMPSSrr, X86::VCMPSSrm, 0 },
1282 { X86::VDIVPDrr, X86::VDIVPDrm, 0 },
1283 { X86::VDIVPSrr, X86::VDIVPSrm, 0 },
1284 { X86::VDIVSDrr, X86::VDIVSDrm, 0 },
1285 { X86::VDIVSDrr_Int, X86::VDIVSDrm_Int, 0 },
1286 { X86::VDIVSSrr, X86::VDIVSSrm, 0 },
1287 { X86::VDIVSSrr_Int, X86::VDIVSSrm_Int, 0 },
1288 { X86::VDPPDrri, X86::VDPPDrmi, 0 },
1289 { X86::VDPPSrri, X86::VDPPSrmi, 0 },
1290 // Do not fold VFs* loads because there are no scalar load variants for
1291 // these instructions. When folded, the load is required to be 128-bits, so
1292 // the load size would not match.
1293 { X86::VFvANDNPDrr, X86::VFvANDNPDrm, 0 },
1294 { X86::VFvANDNPSrr, X86::VFvANDNPSrm, 0 },
1295 { X86::VFvANDPDrr, X86::VFvANDPDrm, 0 },
1296 { X86::VFvANDPSrr, X86::VFvANDPSrm, 0 },
1297 { X86::VFvORPDrr, X86::VFvORPDrm, 0 },
1298 { X86::VFvORPSrr, X86::VFvORPSrm, 0 },
1299 { X86::VFvXORPDrr, X86::VFvXORPDrm, 0 },
1300 { X86::VFvXORPSrr, X86::VFvXORPSrm, 0 },
1301 { X86::VHADDPDrr, X86::VHADDPDrm, 0 },
1302 { X86::VHADDPSrr, X86::VHADDPSrm, 0 },
1303 { X86::VHSUBPDrr, X86::VHSUBPDrm, 0 },
1304 { X86::VHSUBPSrr, X86::VHSUBPSrm, 0 },
1305 { X86::Int_VCMPSDrr, X86::Int_VCMPSDrm, 0 },
1306 { X86::Int_VCMPSSrr, X86::Int_VCMPSSrm, 0 },
1307 { X86::VMAXPDrr, X86::VMAXPDrm, 0 },
1308 { X86::VMAXPSrr, X86::VMAXPSrm, 0 },
1309 { X86::VMAXSDrr, X86::VMAXSDrm, 0 },
1310 { X86::VMAXSDrr_Int, X86::VMAXSDrm_Int, 0 },
1311 { X86::VMAXSSrr, X86::VMAXSSrm, 0 },
1312 { X86::VMAXSSrr_Int, X86::VMAXSSrm_Int, 0 },
1313 { X86::VMINPDrr, X86::VMINPDrm, 0 },
1314 { X86::VMINPSrr, X86::VMINPSrm, 0 },
1315 { X86::VMINSDrr, X86::VMINSDrm, 0 },
1316 { X86::VMINSDrr_Int, X86::VMINSDrm_Int, 0 },
1317 { X86::VMINSSrr, X86::VMINSSrm, 0 },
1318 { X86::VMINSSrr_Int, X86::VMINSSrm_Int, 0 },
1319 { X86::VMOVLHPSrr, X86::VMOVHPSrm, TB_NO_REVERSE },
1320 { X86::VMPSADBWrri, X86::VMPSADBWrmi, 0 },
1321 { X86::VMULPDrr, X86::VMULPDrm, 0 },
1322 { X86::VMULPSrr, X86::VMULPSrm, 0 },
1323 { X86::VMULSDrr, X86::VMULSDrm, 0 },
1324 { X86::VMULSDrr_Int, X86::VMULSDrm_Int, 0 },
1325 { X86::VMULSSrr, X86::VMULSSrm, 0 },
1326 { X86::VMULSSrr_Int, X86::VMULSSrm_Int, 0 },
1327 { X86::VORPDrr, X86::VORPDrm, 0 },
1328 { X86::VORPSrr, X86::VORPSrm, 0 },
1329 { X86::VPACKSSDWrr, X86::VPACKSSDWrm, 0 },
1330 { X86::VPACKSSWBrr, X86::VPACKSSWBrm, 0 },
1331 { X86::VPACKUSDWrr, X86::VPACKUSDWrm, 0 },
1332 { X86::VPACKUSWBrr, X86::VPACKUSWBrm, 0 },
1333 { X86::VPADDBrr, X86::VPADDBrm, 0 },
1334 { X86::VPADDDrr, X86::VPADDDrm, 0 },
1335 { X86::VPADDQrr, X86::VPADDQrm, 0 },
1336 { X86::VPADDSBrr, X86::VPADDSBrm, 0 },
1337 { X86::VPADDSWrr, X86::VPADDSWrm, 0 },
1338 { X86::VPADDUSBrr, X86::VPADDUSBrm, 0 },
1339 { X86::VPADDUSWrr, X86::VPADDUSWrm, 0 },
1340 { X86::VPADDWrr, X86::VPADDWrm, 0 },
1341 { X86::VPALIGNRrri, X86::VPALIGNRrmi, 0 },
1342 { X86::VPANDNrr, X86::VPANDNrm, 0 },
1343 { X86::VPANDrr, X86::VPANDrm, 0 },
1344 { X86::VPAVGBrr, X86::VPAVGBrm, 0 },
1345 { X86::VPAVGWrr, X86::VPAVGWrm, 0 },
1346 { X86::VPBLENDVBrr, X86::VPBLENDVBrm, 0 },
1347 { X86::VPBLENDWrri, X86::VPBLENDWrmi, 0 },
1348 { X86::VPCLMULQDQrr, X86::VPCLMULQDQrm, 0 },
1349 { X86::VPCMPEQBrr, X86::VPCMPEQBrm, 0 },
1350 { X86::VPCMPEQDrr, X86::VPCMPEQDrm, 0 },
1351 { X86::VPCMPEQQrr, X86::VPCMPEQQrm, 0 },
1352 { X86::VPCMPEQWrr, X86::VPCMPEQWrm, 0 },
1353 { X86::VPCMPGTBrr, X86::VPCMPGTBrm, 0 },
1354 { X86::VPCMPGTDrr, X86::VPCMPGTDrm, 0 },
1355 { X86::VPCMPGTQrr, X86::VPCMPGTQrm, 0 },
1356 { X86::VPCMPGTWrr, X86::VPCMPGTWrm, 0 },
1357 { X86::VPHADDDrr, X86::VPHADDDrm, 0 },
1358 { X86::VPHADDSWrr128, X86::VPHADDSWrm128, 0 },
1359 { X86::VPHADDWrr, X86::VPHADDWrm, 0 },
1360 { X86::VPHSUBDrr, X86::VPHSUBDrm, 0 },
1361 { X86::VPHSUBSWrr128, X86::VPHSUBSWrm128, 0 },
1362 { X86::VPHSUBWrr, X86::VPHSUBWrm, 0 },
1363 { X86::VPERMILPDrr, X86::VPERMILPDrm, 0 },
1364 { X86::VPERMILPSrr, X86::VPERMILPSrm, 0 },
1365 { X86::VPINSRBrr, X86::VPINSRBrm, 0 },
1366 { X86::VPINSRDrr, X86::VPINSRDrm, 0 },
1367 { X86::VPINSRQrr, X86::VPINSRQrm, 0 },
1368 { X86::VPINSRWrri, X86::VPINSRWrmi, 0 },
1369 { X86::VPMADDUBSWrr128, X86::VPMADDUBSWrm128, 0 },
1370 { X86::VPMADDWDrr, X86::VPMADDWDrm, 0 },
1371 { X86::VPMAXSWrr, X86::VPMAXSWrm, 0 },
1372 { X86::VPMAXUBrr, X86::VPMAXUBrm, 0 },
1373 { X86::VPMINSWrr, X86::VPMINSWrm, 0 },
1374 { X86::VPMINUBrr, X86::VPMINUBrm, 0 },
1375 { X86::VPMINSBrr, X86::VPMINSBrm, 0 },
1376 { X86::VPMINSDrr, X86::VPMINSDrm, 0 },
1377 { X86::VPMINUDrr, X86::VPMINUDrm, 0 },
1378 { X86::VPMINUWrr, X86::VPMINUWrm, 0 },
1379 { X86::VPMAXSBrr, X86::VPMAXSBrm, 0 },
1380 { X86::VPMAXSDrr, X86::VPMAXSDrm, 0 },
1381 { X86::VPMAXUDrr, X86::VPMAXUDrm, 0 },
1382 { X86::VPMAXUWrr, X86::VPMAXUWrm, 0 },
1383 { X86::VPMULDQrr, X86::VPMULDQrm, 0 },
1384 { X86::VPMULHRSWrr128, X86::VPMULHRSWrm128, 0 },
1385 { X86::VPMULHUWrr, X86::VPMULHUWrm, 0 },
1386 { X86::VPMULHWrr, X86::VPMULHWrm, 0 },
1387 { X86::VPMULLDrr, X86::VPMULLDrm, 0 },
1388 { X86::VPMULLWrr, X86::VPMULLWrm, 0 },
1389 { X86::VPMULUDQrr, X86::VPMULUDQrm, 0 },
1390 { X86::VPORrr, X86::VPORrm, 0 },
1391 { X86::VPSADBWrr, X86::VPSADBWrm, 0 },
1392 { X86::VPSHUFBrr, X86::VPSHUFBrm, 0 },
1393 { X86::VPSIGNBrr128, X86::VPSIGNBrm128, 0 },
1394 { X86::VPSIGNWrr128, X86::VPSIGNWrm128, 0 },
1395 { X86::VPSIGNDrr128, X86::VPSIGNDrm128, 0 },
1396 { X86::VPSLLDrr, X86::VPSLLDrm, 0 },
1397 { X86::VPSLLQrr, X86::VPSLLQrm, 0 },
1398 { X86::VPSLLWrr, X86::VPSLLWrm, 0 },
1399 { X86::VPSRADrr, X86::VPSRADrm, 0 },
1400 { X86::VPSRAWrr, X86::VPSRAWrm, 0 },
1401 { X86::VPSRLDrr, X86::VPSRLDrm, 0 },
1402 { X86::VPSRLQrr, X86::VPSRLQrm, 0 },
1403 { X86::VPSRLWrr, X86::VPSRLWrm, 0 },
1404 { X86::VPSUBBrr, X86::VPSUBBrm, 0 },
1405 { X86::VPSUBDrr, X86::VPSUBDrm, 0 },
1406 { X86::VPSUBQrr, X86::VPSUBQrm, 0 },
1407 { X86::VPSUBSBrr, X86::VPSUBSBrm, 0 },
1408 { X86::VPSUBSWrr, X86::VPSUBSWrm, 0 },
1409 { X86::VPSUBUSBrr, X86::VPSUBUSBrm, 0 },
1410 { X86::VPSUBUSWrr, X86::VPSUBUSWrm, 0 },
1411 { X86::VPSUBWrr, X86::VPSUBWrm, 0 },
1412 { X86::VPUNPCKHBWrr, X86::VPUNPCKHBWrm, 0 },
1413 { X86::VPUNPCKHDQrr, X86::VPUNPCKHDQrm, 0 },
1414 { X86::VPUNPCKHQDQrr, X86::VPUNPCKHQDQrm, 0 },
1415 { X86::VPUNPCKHWDrr, X86::VPUNPCKHWDrm, 0 },
1416 { X86::VPUNPCKLBWrr, X86::VPUNPCKLBWrm, 0 },
1417 { X86::VPUNPCKLDQrr, X86::VPUNPCKLDQrm, 0 },
1418 { X86::VPUNPCKLQDQrr, X86::VPUNPCKLQDQrm, 0 },
1419 { X86::VPUNPCKLWDrr, X86::VPUNPCKLWDrm, 0 },
1420 { X86::VPXORrr, X86::VPXORrm, 0 },
1421 { X86::VROUNDSDr, X86::VROUNDSDm, 0 },
1422 { X86::VROUNDSSr, X86::VROUNDSSm, 0 },
1423 { X86::VSHUFPDrri, X86::VSHUFPDrmi, 0 },
1424 { X86::VSHUFPSrri, X86::VSHUFPSrmi, 0 },
1425 { X86::VSUBPDrr, X86::VSUBPDrm, 0 },
1426 { X86::VSUBPSrr, X86::VSUBPSrm, 0 },
1427 { X86::VSUBSDrr, X86::VSUBSDrm, 0 },
1428 { X86::VSUBSDrr_Int, X86::VSUBSDrm_Int, 0 },
1429 { X86::VSUBSSrr, X86::VSUBSSrm, 0 },
1430 { X86::VSUBSSrr_Int, X86::VSUBSSrm_Int, 0 },
1431 { X86::VUNPCKHPDrr, X86::VUNPCKHPDrm, 0 },
1432 { X86::VUNPCKHPSrr, X86::VUNPCKHPSrm, 0 },
1433 { X86::VUNPCKLPDrr, X86::VUNPCKLPDrm, 0 },
1434 { X86::VUNPCKLPSrr, X86::VUNPCKLPSrm, 0 },
1435 { X86::VXORPDrr, X86::VXORPDrm, 0 },
1436 { X86::VXORPSrr, X86::VXORPSrm, 0 },
1438 // AVX 256-bit foldable instructions
1439 { X86::VADDPDYrr, X86::VADDPDYrm, 0 },
1440 { X86::VADDPSYrr, X86::VADDPSYrm, 0 },
1441 { X86::VADDSUBPDYrr, X86::VADDSUBPDYrm, 0 },
1442 { X86::VADDSUBPSYrr, X86::VADDSUBPSYrm, 0 },
1443 { X86::VANDNPDYrr, X86::VANDNPDYrm, 0 },
1444 { X86::VANDNPSYrr, X86::VANDNPSYrm, 0 },
1445 { X86::VANDPDYrr, X86::VANDPDYrm, 0 },
1446 { X86::VANDPSYrr, X86::VANDPSYrm, 0 },
1447 { X86::VBLENDPDYrri, X86::VBLENDPDYrmi, 0 },
1448 { X86::VBLENDPSYrri, X86::VBLENDPSYrmi, 0 },
1449 { X86::VBLENDVPDYrr, X86::VBLENDVPDYrm, 0 },
1450 { X86::VBLENDVPSYrr, X86::VBLENDVPSYrm, 0 },
1451 { X86::VCMPPDYrri, X86::VCMPPDYrmi, 0 },
1452 { X86::VCMPPSYrri, X86::VCMPPSYrmi, 0 },
1453 { X86::VDIVPDYrr, X86::VDIVPDYrm, 0 },
1454 { X86::VDIVPSYrr, X86::VDIVPSYrm, 0 },
1455 { X86::VDPPSYrri, X86::VDPPSYrmi, 0 },
1456 { X86::VHADDPDYrr, X86::VHADDPDYrm, 0 },
1457 { X86::VHADDPSYrr, X86::VHADDPSYrm, 0 },
1458 { X86::VHSUBPDYrr, X86::VHSUBPDYrm, 0 },
1459 { X86::VHSUBPSYrr, X86::VHSUBPSYrm, 0 },
1460 { X86::VINSERTF128rr, X86::VINSERTF128rm, 0 },
1461 { X86::VMAXPDYrr, X86::VMAXPDYrm, 0 },
1462 { X86::VMAXPSYrr, X86::VMAXPSYrm, 0 },
1463 { X86::VMINPDYrr, X86::VMINPDYrm, 0 },
1464 { X86::VMINPSYrr, X86::VMINPSYrm, 0 },
1465 { X86::VMULPDYrr, X86::VMULPDYrm, 0 },
1466 { X86::VMULPSYrr, X86::VMULPSYrm, 0 },
1467 { X86::VORPDYrr, X86::VORPDYrm, 0 },
1468 { X86::VORPSYrr, X86::VORPSYrm, 0 },
1469 { X86::VPERM2F128rr, X86::VPERM2F128rm, 0 },
1470 { X86::VPERMILPDYrr, X86::VPERMILPDYrm, 0 },
1471 { X86::VPERMILPSYrr, X86::VPERMILPSYrm, 0 },
1472 { X86::VSHUFPDYrri, X86::VSHUFPDYrmi, 0 },
1473 { X86::VSHUFPSYrri, X86::VSHUFPSYrmi, 0 },
1474 { X86::VSUBPDYrr, X86::VSUBPDYrm, 0 },
1475 { X86::VSUBPSYrr, X86::VSUBPSYrm, 0 },
1476 { X86::VUNPCKHPDYrr, X86::VUNPCKHPDYrm, 0 },
1477 { X86::VUNPCKHPSYrr, X86::VUNPCKHPSYrm, 0 },
1478 { X86::VUNPCKLPDYrr, X86::VUNPCKLPDYrm, 0 },
1479 { X86::VUNPCKLPSYrr, X86::VUNPCKLPSYrm, 0 },
1480 { X86::VXORPDYrr, X86::VXORPDYrm, 0 },
1481 { X86::VXORPSYrr, X86::VXORPSYrm, 0 },
1483 // AVX2 foldable instructions
1484 { X86::VINSERTI128rr, X86::VINSERTI128rm, 0 },
1485 { X86::VPACKSSDWYrr, X86::VPACKSSDWYrm, 0 },
1486 { X86::VPACKSSWBYrr, X86::VPACKSSWBYrm, 0 },
1487 { X86::VPACKUSDWYrr, X86::VPACKUSDWYrm, 0 },
1488 { X86::VPACKUSWBYrr, X86::VPACKUSWBYrm, 0 },
1489 { X86::VPADDBYrr, X86::VPADDBYrm, 0 },
1490 { X86::VPADDDYrr, X86::VPADDDYrm, 0 },
1491 { X86::VPADDQYrr, X86::VPADDQYrm, 0 },
1492 { X86::VPADDSBYrr, X86::VPADDSBYrm, 0 },
1493 { X86::VPADDSWYrr, X86::VPADDSWYrm, 0 },
1494 { X86::VPADDUSBYrr, X86::VPADDUSBYrm, 0 },
1495 { X86::VPADDUSWYrr, X86::VPADDUSWYrm, 0 },
1496 { X86::VPADDWYrr, X86::VPADDWYrm, 0 },
1497 { X86::VPALIGNRYrri, X86::VPALIGNRYrmi, 0 },
1498 { X86::VPANDNYrr, X86::VPANDNYrm, 0 },
1499 { X86::VPANDYrr, X86::VPANDYrm, 0 },
1500 { X86::VPAVGBYrr, X86::VPAVGBYrm, 0 },
1501 { X86::VPAVGWYrr, X86::VPAVGWYrm, 0 },
1502 { X86::VPBLENDDrri, X86::VPBLENDDrmi, 0 },
1503 { X86::VPBLENDDYrri, X86::VPBLENDDYrmi, 0 },
1504 { X86::VPBLENDVBYrr, X86::VPBLENDVBYrm, 0 },
1505 { X86::VPBLENDWYrri, X86::VPBLENDWYrmi, 0 },
1506 { X86::VPCMPEQBYrr, X86::VPCMPEQBYrm, 0 },
1507 { X86::VPCMPEQDYrr, X86::VPCMPEQDYrm, 0 },
1508 { X86::VPCMPEQQYrr, X86::VPCMPEQQYrm, 0 },
1509 { X86::VPCMPEQWYrr, X86::VPCMPEQWYrm, 0 },
1510 { X86::VPCMPGTBYrr, X86::VPCMPGTBYrm, 0 },
1511 { X86::VPCMPGTDYrr, X86::VPCMPGTDYrm, 0 },
1512 { X86::VPCMPGTQYrr, X86::VPCMPGTQYrm, 0 },
1513 { X86::VPCMPGTWYrr, X86::VPCMPGTWYrm, 0 },
1514 { X86::VPERM2I128rr, X86::VPERM2I128rm, 0 },
1515 { X86::VPERMDYrr, X86::VPERMDYrm, 0 },
1516 { X86::VPERMPSYrr, X86::VPERMPSYrm, 0 },
1517 { X86::VPHADDDYrr, X86::VPHADDDYrm, 0 },
1518 { X86::VPHADDSWrr256, X86::VPHADDSWrm256, 0 },
1519 { X86::VPHADDWYrr, X86::VPHADDWYrm, 0 },
1520 { X86::VPHSUBDYrr, X86::VPHSUBDYrm, 0 },
1521 { X86::VPHSUBSWrr256, X86::VPHSUBSWrm256, 0 },
1522 { X86::VPHSUBWYrr, X86::VPHSUBWYrm, 0 },
1523 { X86::VPMADDUBSWrr256, X86::VPMADDUBSWrm256, 0 },
1524 { X86::VPMADDWDYrr, X86::VPMADDWDYrm, 0 },
1525 { X86::VPMAXSWYrr, X86::VPMAXSWYrm, 0 },
1526 { X86::VPMAXUBYrr, X86::VPMAXUBYrm, 0 },
1527 { X86::VPMINSWYrr, X86::VPMINSWYrm, 0 },
1528 { X86::VPMINUBYrr, X86::VPMINUBYrm, 0 },
1529 { X86::VPMINSBYrr, X86::VPMINSBYrm, 0 },
1530 { X86::VPMINSDYrr, X86::VPMINSDYrm, 0 },
1531 { X86::VPMINUDYrr, X86::VPMINUDYrm, 0 },
1532 { X86::VPMINUWYrr, X86::VPMINUWYrm, 0 },
1533 { X86::VPMAXSBYrr, X86::VPMAXSBYrm, 0 },
1534 { X86::VPMAXSDYrr, X86::VPMAXSDYrm, 0 },
1535 { X86::VPMAXUDYrr, X86::VPMAXUDYrm, 0 },
1536 { X86::VPMAXUWYrr, X86::VPMAXUWYrm, 0 },
1537 { X86::VMPSADBWYrri, X86::VMPSADBWYrmi, 0 },
1538 { X86::VPMULDQYrr, X86::VPMULDQYrm, 0 },
1539 { X86::VPMULHRSWrr256, X86::VPMULHRSWrm256, 0 },
1540 { X86::VPMULHUWYrr, X86::VPMULHUWYrm, 0 },
1541 { X86::VPMULHWYrr, X86::VPMULHWYrm, 0 },
1542 { X86::VPMULLDYrr, X86::VPMULLDYrm, 0 },
1543 { X86::VPMULLWYrr, X86::VPMULLWYrm, 0 },
1544 { X86::VPMULUDQYrr, X86::VPMULUDQYrm, 0 },
1545 { X86::VPORYrr, X86::VPORYrm, 0 },
1546 { X86::VPSADBWYrr, X86::VPSADBWYrm, 0 },
1547 { X86::VPSHUFBYrr, X86::VPSHUFBYrm, 0 },
1548 { X86::VPSIGNBYrr256, X86::VPSIGNBYrm256, 0 },
1549 { X86::VPSIGNWYrr256, X86::VPSIGNWYrm256, 0 },
1550 { X86::VPSIGNDYrr256, X86::VPSIGNDYrm256, 0 },
1551 { X86::VPSLLDYrr, X86::VPSLLDYrm, 0 },
1552 { X86::VPSLLQYrr, X86::VPSLLQYrm, 0 },
1553 { X86::VPSLLWYrr, X86::VPSLLWYrm, 0 },
1554 { X86::VPSLLVDrr, X86::VPSLLVDrm, 0 },
1555 { X86::VPSLLVDYrr, X86::VPSLLVDYrm, 0 },
1556 { X86::VPSLLVQrr, X86::VPSLLVQrm, 0 },
1557 { X86::VPSLLVQYrr, X86::VPSLLVQYrm, 0 },
1558 { X86::VPSRADYrr, X86::VPSRADYrm, 0 },
1559 { X86::VPSRAWYrr, X86::VPSRAWYrm, 0 },
1560 { X86::VPSRAVDrr, X86::VPSRAVDrm, 0 },
1561 { X86::VPSRAVDYrr, X86::VPSRAVDYrm, 0 },
1562 { X86::VPSRAVD_Intrr, X86::VPSRAVD_Intrm, 0 },
1563 { X86::VPSRAVD_IntYrr, X86::VPSRAVD_IntYrm, 0 },
1564 { X86::VPSRLDYrr, X86::VPSRLDYrm, 0 },
1565 { X86::VPSRLQYrr, X86::VPSRLQYrm, 0 },
1566 { X86::VPSRLWYrr, X86::VPSRLWYrm, 0 },
1567 { X86::VPSRLVDrr, X86::VPSRLVDrm, 0 },
1568 { X86::VPSRLVDYrr, X86::VPSRLVDYrm, 0 },
1569 { X86::VPSRLVQrr, X86::VPSRLVQrm, 0 },
1570 { X86::VPSRLVQYrr, X86::VPSRLVQYrm, 0 },
1571 { X86::VPSUBBYrr, X86::VPSUBBYrm, 0 },
1572 { X86::VPSUBDYrr, X86::VPSUBDYrm, 0 },
1573 { X86::VPSUBQYrr, X86::VPSUBQYrm, 0 },
1574 { X86::VPSUBSBYrr, X86::VPSUBSBYrm, 0 },
1575 { X86::VPSUBSWYrr, X86::VPSUBSWYrm, 0 },
1576 { X86::VPSUBUSBYrr, X86::VPSUBUSBYrm, 0 },
1577 { X86::VPSUBUSWYrr, X86::VPSUBUSWYrm, 0 },
1578 { X86::VPSUBWYrr, X86::VPSUBWYrm, 0 },
1579 { X86::VPUNPCKHBWYrr, X86::VPUNPCKHBWYrm, 0 },
1580 { X86::VPUNPCKHDQYrr, X86::VPUNPCKHDQYrm, 0 },
1581 { X86::VPUNPCKHQDQYrr, X86::VPUNPCKHQDQYrm, 0 },
1582 { X86::VPUNPCKHWDYrr, X86::VPUNPCKHWDYrm, 0 },
1583 { X86::VPUNPCKLBWYrr, X86::VPUNPCKLBWYrm, 0 },
1584 { X86::VPUNPCKLDQYrr, X86::VPUNPCKLDQYrm, 0 },
1585 { X86::VPUNPCKLQDQYrr, X86::VPUNPCKLQDQYrm, 0 },
1586 { X86::VPUNPCKLWDYrr, X86::VPUNPCKLWDYrm, 0 },
1587 { X86::VPXORYrr, X86::VPXORYrm, 0 },
1589 // FMA4 foldable patterns
1590 { X86::VFMADDSS4rr, X86::VFMADDSS4mr, TB_ALIGN_NONE },
1591 { X86::VFMADDSD4rr, X86::VFMADDSD4mr, TB_ALIGN_NONE },
1592 { X86::VFMADDPS4rr, X86::VFMADDPS4mr, TB_ALIGN_NONE },
1593 { X86::VFMADDPD4rr, X86::VFMADDPD4mr, TB_ALIGN_NONE },
1594 { X86::VFMADDPS4rrY, X86::VFMADDPS4mrY, TB_ALIGN_NONE },
1595 { X86::VFMADDPD4rrY, X86::VFMADDPD4mrY, TB_ALIGN_NONE },
1596 { X86::VFNMADDSS4rr, X86::VFNMADDSS4mr, TB_ALIGN_NONE },
1597 { X86::VFNMADDSD4rr, X86::VFNMADDSD4mr, TB_ALIGN_NONE },
1598 { X86::VFNMADDPS4rr, X86::VFNMADDPS4mr, TB_ALIGN_NONE },
1599 { X86::VFNMADDPD4rr, X86::VFNMADDPD4mr, TB_ALIGN_NONE },
1600 { X86::VFNMADDPS4rrY, X86::VFNMADDPS4mrY, TB_ALIGN_NONE },
1601 { X86::VFNMADDPD4rrY, X86::VFNMADDPD4mrY, TB_ALIGN_NONE },
1602 { X86::VFMSUBSS4rr, X86::VFMSUBSS4mr, TB_ALIGN_NONE },
1603 { X86::VFMSUBSD4rr, X86::VFMSUBSD4mr, TB_ALIGN_NONE },
1604 { X86::VFMSUBPS4rr, X86::VFMSUBPS4mr, TB_ALIGN_NONE },
1605 { X86::VFMSUBPD4rr, X86::VFMSUBPD4mr, TB_ALIGN_NONE },
1606 { X86::VFMSUBPS4rrY, X86::VFMSUBPS4mrY, TB_ALIGN_NONE },
1607 { X86::VFMSUBPD4rrY, X86::VFMSUBPD4mrY, TB_ALIGN_NONE },
1608 { X86::VFNMSUBSS4rr, X86::VFNMSUBSS4mr, TB_ALIGN_NONE },
1609 { X86::VFNMSUBSD4rr, X86::VFNMSUBSD4mr, TB_ALIGN_NONE },
1610 { X86::VFNMSUBPS4rr, X86::VFNMSUBPS4mr, TB_ALIGN_NONE },
1611 { X86::VFNMSUBPD4rr, X86::VFNMSUBPD4mr, TB_ALIGN_NONE },
1612 { X86::VFNMSUBPS4rrY, X86::VFNMSUBPS4mrY, TB_ALIGN_NONE },
1613 { X86::VFNMSUBPD4rrY, X86::VFNMSUBPD4mrY, TB_ALIGN_NONE },
1614 { X86::VFMADDSUBPS4rr, X86::VFMADDSUBPS4mr, TB_ALIGN_NONE },
1615 { X86::VFMADDSUBPD4rr, X86::VFMADDSUBPD4mr, TB_ALIGN_NONE },
1616 { X86::VFMADDSUBPS4rrY, X86::VFMADDSUBPS4mrY, TB_ALIGN_NONE },
1617 { X86::VFMADDSUBPD4rrY, X86::VFMADDSUBPD4mrY, TB_ALIGN_NONE },
1618 { X86::VFMSUBADDPS4rr, X86::VFMSUBADDPS4mr, TB_ALIGN_NONE },
1619 { X86::VFMSUBADDPD4rr, X86::VFMSUBADDPD4mr, TB_ALIGN_NONE },
1620 { X86::VFMSUBADDPS4rrY, X86::VFMSUBADDPS4mrY, TB_ALIGN_NONE },
1621 { X86::VFMSUBADDPD4rrY, X86::VFMSUBADDPD4mrY, TB_ALIGN_NONE },
1623 // XOP foldable instructions
1624 { X86::VPCMOVrrr, X86::VPCMOVrmr, 0 },
1625 { X86::VPCMOVrrrY, X86::VPCMOVrmrY, 0 },
1626 { X86::VPCOMBri, X86::VPCOMBmi, 0 },
1627 { X86::VPCOMDri, X86::VPCOMDmi, 0 },
1628 { X86::VPCOMQri, X86::VPCOMQmi, 0 },
1629 { X86::VPCOMWri, X86::VPCOMWmi, 0 },
1630 { X86::VPCOMUBri, X86::VPCOMUBmi, 0 },
1631 { X86::VPCOMUDri, X86::VPCOMUDmi, 0 },
1632 { X86::VPCOMUQri, X86::VPCOMUQmi, 0 },
1633 { X86::VPCOMUWri, X86::VPCOMUWmi, 0 },
1634 { X86::VPERMIL2PDrr, X86::VPERMIL2PDmr, 0 },
1635 { X86::VPERMIL2PDrrY, X86::VPERMIL2PDmrY, 0 },
1636 { X86::VPERMIL2PSrr, X86::VPERMIL2PSmr, 0 },
1637 { X86::VPERMIL2PSrrY, X86::VPERMIL2PSmrY, 0 },
1638 { X86::VPMACSDDrr, X86::VPMACSDDrm, 0 },
1639 { X86::VPMACSDQHrr, X86::VPMACSDQHrm, 0 },
1640 { X86::VPMACSDQLrr, X86::VPMACSDQLrm, 0 },
1641 { X86::VPMACSSDDrr, X86::VPMACSSDDrm, 0 },
1642 { X86::VPMACSSDQHrr, X86::VPMACSSDQHrm, 0 },
1643 { X86::VPMACSSDQLrr, X86::VPMACSSDQLrm, 0 },
1644 { X86::VPMACSSWDrr, X86::VPMACSSWDrm, 0 },
1645 { X86::VPMACSSWWrr, X86::VPMACSSWWrm, 0 },
1646 { X86::VPMACSWDrr, X86::VPMACSWDrm, 0 },
1647 { X86::VPMACSWWrr, X86::VPMACSWWrm, 0 },
1648 { X86::VPMADCSSWDrr, X86::VPMADCSSWDrm, 0 },
1649 { X86::VPMADCSWDrr, X86::VPMADCSWDrm, 0 },
1650 { X86::VPPERMrrr, X86::VPPERMrmr, 0 },
1651 { X86::VPROTBrr, X86::VPROTBrm, 0 },
1652 { X86::VPROTDrr, X86::VPROTDrm, 0 },
1653 { X86::VPROTQrr, X86::VPROTQrm, 0 },
1654 { X86::VPROTWrr, X86::VPROTWrm, 0 },
1655 { X86::VPSHABrr, X86::VPSHABrm, 0 },
1656 { X86::VPSHADrr, X86::VPSHADrm, 0 },
1657 { X86::VPSHAQrr, X86::VPSHAQrm, 0 },
1658 { X86::VPSHAWrr, X86::VPSHAWrm, 0 },
1659 { X86::VPSHLBrr, X86::VPSHLBrm, 0 },
1660 { X86::VPSHLDrr, X86::VPSHLDrm, 0 },
1661 { X86::VPSHLQrr, X86::VPSHLQrm, 0 },
1662 { X86::VPSHLWrr, X86::VPSHLWrm, 0 },
1664 // BMI/BMI2 foldable instructions
1665 { X86::ANDN32rr, X86::ANDN32rm, 0 },
1666 { X86::ANDN64rr, X86::ANDN64rm, 0 },
1667 { X86::MULX32rr, X86::MULX32rm, 0 },
1668 { X86::MULX64rr, X86::MULX64rm, 0 },
1669 { X86::PDEP32rr, X86::PDEP32rm, 0 },
1670 { X86::PDEP64rr, X86::PDEP64rm, 0 },
1671 { X86::PEXT32rr, X86::PEXT32rm, 0 },
1672 { X86::PEXT64rr, X86::PEXT64rm, 0 },
1674 // ADX foldable instructions
1675 { X86::ADCX32rr, X86::ADCX32rm, 0 },
1676 { X86::ADCX64rr, X86::ADCX64rm, 0 },
1677 { X86::ADOX32rr, X86::ADOX32rm, 0 },
1678 { X86::ADOX64rr, X86::ADOX64rm, 0 },
1680 // AVX-512 foldable instructions
1681 { X86::VADDPSZrr, X86::VADDPSZrm, 0 },
1682 { X86::VADDPDZrr, X86::VADDPDZrm, 0 },
1683 { X86::VADDSSZrr, X86::VADDSSZrm, 0 },
1684 { X86::VADDSSZrr_Int, X86::VADDSSZrm_Int, 0 },
1685 { X86::VADDSDZrr, X86::VADDSDZrm, 0 },
1686 { X86::VADDSDZrr_Int, X86::VADDSDZrm_Int, 0 },
1687 { X86::VSUBPSZrr, X86::VSUBPSZrm, 0 },
1688 { X86::VSUBPDZrr, X86::VSUBPDZrm, 0 },
1689 { X86::VSUBSSZrr, X86::VSUBSSZrm, 0 },
1690 { X86::VSUBSSZrr_Int, X86::VSUBSSZrm_Int, 0 },
1691 { X86::VSUBSDZrr, X86::VSUBSDZrm, 0 },
1692 { X86::VSUBSDZrr_Int, X86::VSUBSDZrm_Int, 0 },
1693 { X86::VMULPSZrr, X86::VMULPSZrm, 0 },
1694 { X86::VMULPDZrr, X86::VMULPDZrm, 0 },
1695 { X86::VMULSSZrr, X86::VMULSSZrm, 0 },
1696 { X86::VMULSSZrr_Int, X86::VMULSSZrm_Int, 0 },
1697 { X86::VMULSDZrr, X86::VMULSDZrm, 0 },
1698 { X86::VMULSDZrr_Int, X86::VMULSDZrm_Int, 0 },
1699 { X86::VDIVPSZrr, X86::VDIVPSZrm, 0 },
1700 { X86::VDIVPDZrr, X86::VDIVPDZrm, 0 },
1701 { X86::VDIVSSZrr, X86::VDIVSSZrm, 0 },
1702 { X86::VDIVSSZrr_Int, X86::VDIVSSZrm_Int, 0 },
1703 { X86::VDIVSDZrr, X86::VDIVSDZrm, 0 },
1704 { X86::VDIVSDZrr_Int, X86::VDIVSDZrm_Int, 0 },
1705 { X86::VMINPSZrr, X86::VMINPSZrm, 0 },
1706 { X86::VMINPDZrr, X86::VMINPDZrm, 0 },
1707 { X86::VMAXPSZrr, X86::VMAXPSZrm, 0 },
1708 { X86::VMAXPDZrr, X86::VMAXPDZrm, 0 },
1709 { X86::VPADDDZrr, X86::VPADDDZrm, 0 },
1710 { X86::VPADDQZrr, X86::VPADDQZrm, 0 },
1711 { X86::VPERMPDZri, X86::VPERMPDZmi, 0 },
1712 { X86::VPERMPSZrr, X86::VPERMPSZrm, 0 },
1713 { X86::VPMAXSDZrr, X86::VPMAXSDZrm, 0 },
1714 { X86::VPMAXSQZrr, X86::VPMAXSQZrm, 0 },
1715 { X86::VPMAXUDZrr, X86::VPMAXUDZrm, 0 },
1716 { X86::VPMAXUQZrr, X86::VPMAXUQZrm, 0 },
1717 { X86::VPMINSDZrr, X86::VPMINSDZrm, 0 },
1718 { X86::VPMINSQZrr, X86::VPMINSQZrm, 0 },
1719 { X86::VPMINUDZrr, X86::VPMINUDZrm, 0 },
1720 { X86::VPMINUQZrr, X86::VPMINUQZrm, 0 },
1721 { X86::VPMULDQZrr, X86::VPMULDQZrm, 0 },
1722 { X86::VPSLLVDZrr, X86::VPSLLVDZrm, 0 },
1723 { X86::VPSLLVQZrr, X86::VPSLLVQZrm, 0 },
1724 { X86::VPSRAVDZrr, X86::VPSRAVDZrm, 0 },
1725 { X86::VPSRLVDZrr, X86::VPSRLVDZrm, 0 },
1726 { X86::VPSRLVQZrr, X86::VPSRLVQZrm, 0 },
1727 { X86::VPSUBDZrr, X86::VPSUBDZrm, 0 },
1728 { X86::VPSUBQZrr, X86::VPSUBQZrm, 0 },
1729 { X86::VSHUFPDZrri, X86::VSHUFPDZrmi, 0 },
1730 { X86::VSHUFPSZrri, X86::VSHUFPSZrmi, 0 },
1731 { X86::VALIGNQZrri, X86::VALIGNQZrmi, 0 },
1732 { X86::VALIGNDZrri, X86::VALIGNDZrmi, 0 },
1733 { X86::VPMULUDQZrr, X86::VPMULUDQZrm, 0 },
1734 { X86::VBROADCASTSSZrkz, X86::VBROADCASTSSZmkz, TB_NO_REVERSE },
1735 { X86::VBROADCASTSDZrkz, X86::VBROADCASTSDZmkz, TB_NO_REVERSE },
1737 // AVX-512{F,VL} foldable instructions
1738 { X86::VBROADCASTSSZ256rkz, X86::VBROADCASTSSZ256mkz, TB_NO_REVERSE },
1739 { X86::VBROADCASTSDZ256rkz, X86::VBROADCASTSDZ256mkz, TB_NO_REVERSE },
1740 { X86::VBROADCASTSSZ128rkz, X86::VBROADCASTSSZ128mkz, TB_NO_REVERSE },
1742 // AVX-512{F,VL} foldable instructions
1743 { X86::VADDPDZ128rr, X86::VADDPDZ128rm, 0 },
1744 { X86::VADDPDZ256rr, X86::VADDPDZ256rm, 0 },
1745 { X86::VADDPSZ128rr, X86::VADDPSZ128rm, 0 },
1746 { X86::VADDPSZ256rr, X86::VADDPSZ256rm, 0 },
1748 // AES foldable instructions
1749 { X86::AESDECLASTrr, X86::AESDECLASTrm, TB_ALIGN_16 },
1750 { X86::AESDECrr, X86::AESDECrm, TB_ALIGN_16 },
1751 { X86::AESENCLASTrr, X86::AESENCLASTrm, TB_ALIGN_16 },
1752 { X86::AESENCrr, X86::AESENCrm, TB_ALIGN_16 },
1753 { X86::VAESDECLASTrr, X86::VAESDECLASTrm, 0 },
1754 { X86::VAESDECrr, X86::VAESDECrm, 0 },
1755 { X86::VAESENCLASTrr, X86::VAESENCLASTrm, 0 },
1756 { X86::VAESENCrr, X86::VAESENCrm, 0 },
1758 // SHA foldable instructions
1759 { X86::SHA1MSG1rr, X86::SHA1MSG1rm, TB_ALIGN_16 },
1760 { X86::SHA1MSG2rr, X86::SHA1MSG2rm, TB_ALIGN_16 },
1761 { X86::SHA1NEXTErr, X86::SHA1NEXTErm, TB_ALIGN_16 },
1762 { X86::SHA1RNDS4rri, X86::SHA1RNDS4rmi, TB_ALIGN_16 },
1763 { X86::SHA256MSG1rr, X86::SHA256MSG1rm, TB_ALIGN_16 },
1764 { X86::SHA256MSG2rr, X86::SHA256MSG2rm, TB_ALIGN_16 },
1765 { X86::SHA256RNDS2rr, X86::SHA256RNDS2rm, TB_ALIGN_16 }
1768 for (X86MemoryFoldTableEntry Entry : MemoryFoldTable2) {
1769 AddTableEntry(RegOp2MemOpTable2, MemOp2RegOpTable,
1770 Entry.RegOp, Entry.MemOp,
1771 // Index 2, folded load
1772 Entry.Flags | TB_INDEX_2 | TB_FOLDED_LOAD);
1775 static const X86MemoryFoldTableEntry MemoryFoldTable3[] = {
1776 // FMA foldable instructions
1777 { X86::VFMADDSSr231r, X86::VFMADDSSr231m, TB_ALIGN_NONE },
1778 { X86::VFMADDSSr231r_Int, X86::VFMADDSSr231m_Int, TB_ALIGN_NONE },
1779 { X86::VFMADDSDr231r, X86::VFMADDSDr231m, TB_ALIGN_NONE },
1780 { X86::VFMADDSDr231r_Int, X86::VFMADDSDr231m_Int, TB_ALIGN_NONE },
1781 { X86::VFMADDSSr132r, X86::VFMADDSSr132m, TB_ALIGN_NONE },
1782 { X86::VFMADDSSr132r_Int, X86::VFMADDSSr132m_Int, TB_ALIGN_NONE },
1783 { X86::VFMADDSDr132r, X86::VFMADDSDr132m, TB_ALIGN_NONE },
1784 { X86::VFMADDSDr132r_Int, X86::VFMADDSDr132m_Int, TB_ALIGN_NONE },
1785 { X86::VFMADDSSr213r, X86::VFMADDSSr213m, TB_ALIGN_NONE },
1786 { X86::VFMADDSSr213r_Int, X86::VFMADDSSr213m_Int, TB_ALIGN_NONE },
1787 { X86::VFMADDSDr213r, X86::VFMADDSDr213m, TB_ALIGN_NONE },
1788 { X86::VFMADDSDr213r_Int, X86::VFMADDSDr213m_Int, TB_ALIGN_NONE },
1790 { X86::VFMADDPSr231r, X86::VFMADDPSr231m, TB_ALIGN_NONE },
1791 { X86::VFMADDPDr231r, X86::VFMADDPDr231m, TB_ALIGN_NONE },
1792 { X86::VFMADDPSr132r, X86::VFMADDPSr132m, TB_ALIGN_NONE },
1793 { X86::VFMADDPDr132r, X86::VFMADDPDr132m, TB_ALIGN_NONE },
1794 { X86::VFMADDPSr213r, X86::VFMADDPSr213m, TB_ALIGN_NONE },
1795 { X86::VFMADDPDr213r, X86::VFMADDPDr213m, TB_ALIGN_NONE },
1796 { X86::VFMADDPSr231rY, X86::VFMADDPSr231mY, TB_ALIGN_NONE },
1797 { X86::VFMADDPDr231rY, X86::VFMADDPDr231mY, TB_ALIGN_NONE },
1798 { X86::VFMADDPSr132rY, X86::VFMADDPSr132mY, TB_ALIGN_NONE },
1799 { X86::VFMADDPDr132rY, X86::VFMADDPDr132mY, TB_ALIGN_NONE },
1800 { X86::VFMADDPSr213rY, X86::VFMADDPSr213mY, TB_ALIGN_NONE },
1801 { X86::VFMADDPDr213rY, X86::VFMADDPDr213mY, TB_ALIGN_NONE },
1803 { X86::VFNMADDSSr231r, X86::VFNMADDSSr231m, TB_ALIGN_NONE },
1804 { X86::VFNMADDSSr231r_Int, X86::VFNMADDSSr231m_Int, TB_ALIGN_NONE },
1805 { X86::VFNMADDSDr231r, X86::VFNMADDSDr231m, TB_ALIGN_NONE },
1806 { X86::VFNMADDSDr231r_Int, X86::VFNMADDSDr231m_Int, TB_ALIGN_NONE },
1807 { X86::VFNMADDSSr132r, X86::VFNMADDSSr132m, TB_ALIGN_NONE },
1808 { X86::VFNMADDSSr132r_Int, X86::VFNMADDSSr132m_Int, TB_ALIGN_NONE },
1809 { X86::VFNMADDSDr132r, X86::VFNMADDSDr132m, TB_ALIGN_NONE },
1810 { X86::VFNMADDSDr132r_Int, X86::VFNMADDSDr132m_Int, TB_ALIGN_NONE },
1811 { X86::VFNMADDSSr213r, X86::VFNMADDSSr213m, TB_ALIGN_NONE },
1812 { X86::VFNMADDSSr213r_Int, X86::VFNMADDSSr213m_Int, TB_ALIGN_NONE },
1813 { X86::VFNMADDSDr213r, X86::VFNMADDSDr213m, TB_ALIGN_NONE },
1814 { X86::VFNMADDSDr213r_Int, X86::VFNMADDSDr213m_Int, TB_ALIGN_NONE },
1816 { X86::VFNMADDPSr231r, X86::VFNMADDPSr231m, TB_ALIGN_NONE },
1817 { X86::VFNMADDPDr231r, X86::VFNMADDPDr231m, TB_ALIGN_NONE },
1818 { X86::VFNMADDPSr132r, X86::VFNMADDPSr132m, TB_ALIGN_NONE },
1819 { X86::VFNMADDPDr132r, X86::VFNMADDPDr132m, TB_ALIGN_NONE },
1820 { X86::VFNMADDPSr213r, X86::VFNMADDPSr213m, TB_ALIGN_NONE },
1821 { X86::VFNMADDPDr213r, X86::VFNMADDPDr213m, TB_ALIGN_NONE },
1822 { X86::VFNMADDPSr231rY, X86::VFNMADDPSr231mY, TB_ALIGN_NONE },
1823 { X86::VFNMADDPDr231rY, X86::VFNMADDPDr231mY, TB_ALIGN_NONE },
1824 { X86::VFNMADDPSr132rY, X86::VFNMADDPSr132mY, TB_ALIGN_NONE },
1825 { X86::VFNMADDPDr132rY, X86::VFNMADDPDr132mY, TB_ALIGN_NONE },
1826 { X86::VFNMADDPSr213rY, X86::VFNMADDPSr213mY, TB_ALIGN_NONE },
1827 { X86::VFNMADDPDr213rY, X86::VFNMADDPDr213mY, TB_ALIGN_NONE },
1829 { X86::VFMSUBSSr231r, X86::VFMSUBSSr231m, TB_ALIGN_NONE },
1830 { X86::VFMSUBSSr231r_Int, X86::VFMSUBSSr231m_Int, TB_ALIGN_NONE },
1831 { X86::VFMSUBSDr231r, X86::VFMSUBSDr231m, TB_ALIGN_NONE },
1832 { X86::VFMSUBSDr231r_Int, X86::VFMSUBSDr231m_Int, TB_ALIGN_NONE },
1833 { X86::VFMSUBSSr132r, X86::VFMSUBSSr132m, TB_ALIGN_NONE },
1834 { X86::VFMSUBSSr132r_Int, X86::VFMSUBSSr132m_Int, TB_ALIGN_NONE },
1835 { X86::VFMSUBSDr132r, X86::VFMSUBSDr132m, TB_ALIGN_NONE },
1836 { X86::VFMSUBSDr132r_Int, X86::VFMSUBSDr132m_Int, TB_ALIGN_NONE },
1837 { X86::VFMSUBSSr213r, X86::VFMSUBSSr213m, TB_ALIGN_NONE },
1838 { X86::VFMSUBSSr213r_Int, X86::VFMSUBSSr213m_Int, TB_ALIGN_NONE },
1839 { X86::VFMSUBSDr213r, X86::VFMSUBSDr213m, TB_ALIGN_NONE },
1840 { X86::VFMSUBSDr213r_Int, X86::VFMSUBSDr213m_Int, TB_ALIGN_NONE },
1842 { X86::VFMSUBPSr231r, X86::VFMSUBPSr231m, TB_ALIGN_NONE },
1843 { X86::VFMSUBPDr231r, X86::VFMSUBPDr231m, TB_ALIGN_NONE },
1844 { X86::VFMSUBPSr132r, X86::VFMSUBPSr132m, TB_ALIGN_NONE },
1845 { X86::VFMSUBPDr132r, X86::VFMSUBPDr132m, TB_ALIGN_NONE },
1846 { X86::VFMSUBPSr213r, X86::VFMSUBPSr213m, TB_ALIGN_NONE },
1847 { X86::VFMSUBPDr213r, X86::VFMSUBPDr213m, TB_ALIGN_NONE },
1848 { X86::VFMSUBPSr231rY, X86::VFMSUBPSr231mY, TB_ALIGN_NONE },
1849 { X86::VFMSUBPDr231rY, X86::VFMSUBPDr231mY, TB_ALIGN_NONE },
1850 { X86::VFMSUBPSr132rY, X86::VFMSUBPSr132mY, TB_ALIGN_NONE },
1851 { X86::VFMSUBPDr132rY, X86::VFMSUBPDr132mY, TB_ALIGN_NONE },
1852 { X86::VFMSUBPSr213rY, X86::VFMSUBPSr213mY, TB_ALIGN_NONE },
1853 { X86::VFMSUBPDr213rY, X86::VFMSUBPDr213mY, TB_ALIGN_NONE },
1855 { X86::VFNMSUBSSr231r, X86::VFNMSUBSSr231m, TB_ALIGN_NONE },
1856 { X86::VFNMSUBSSr231r_Int, X86::VFNMSUBSSr231m_Int, TB_ALIGN_NONE },
1857 { X86::VFNMSUBSDr231r, X86::VFNMSUBSDr231m, TB_ALIGN_NONE },
1858 { X86::VFNMSUBSDr231r_Int, X86::VFNMSUBSDr231m_Int, TB_ALIGN_NONE },
1859 { X86::VFNMSUBSSr132r, X86::VFNMSUBSSr132m, TB_ALIGN_NONE },
1860 { X86::VFNMSUBSSr132r_Int, X86::VFNMSUBSSr132m_Int, TB_ALIGN_NONE },
1861 { X86::VFNMSUBSDr132r, X86::VFNMSUBSDr132m, TB_ALIGN_NONE },
1862 { X86::VFNMSUBSDr132r_Int, X86::VFNMSUBSDr132m_Int, TB_ALIGN_NONE },
1863 { X86::VFNMSUBSSr213r, X86::VFNMSUBSSr213m, TB_ALIGN_NONE },
1864 { X86::VFNMSUBSSr213r_Int, X86::VFNMSUBSSr213m_Int, TB_ALIGN_NONE },
1865 { X86::VFNMSUBSDr213r, X86::VFNMSUBSDr213m, TB_ALIGN_NONE },
1866 { X86::VFNMSUBSDr213r_Int, X86::VFNMSUBSDr213m_Int, TB_ALIGN_NONE },
1868 { X86::VFNMSUBPSr231r, X86::VFNMSUBPSr231m, TB_ALIGN_NONE },
1869 { X86::VFNMSUBPDr231r, X86::VFNMSUBPDr231m, TB_ALIGN_NONE },
1870 { X86::VFNMSUBPSr132r, X86::VFNMSUBPSr132m, TB_ALIGN_NONE },
1871 { X86::VFNMSUBPDr132r, X86::VFNMSUBPDr132m, TB_ALIGN_NONE },
1872 { X86::VFNMSUBPSr213r, X86::VFNMSUBPSr213m, TB_ALIGN_NONE },
1873 { X86::VFNMSUBPDr213r, X86::VFNMSUBPDr213m, TB_ALIGN_NONE },
1874 { X86::VFNMSUBPSr231rY, X86::VFNMSUBPSr231mY, TB_ALIGN_NONE },
1875 { X86::VFNMSUBPDr231rY, X86::VFNMSUBPDr231mY, TB_ALIGN_NONE },
1876 { X86::VFNMSUBPSr132rY, X86::VFNMSUBPSr132mY, TB_ALIGN_NONE },
1877 { X86::VFNMSUBPDr132rY, X86::VFNMSUBPDr132mY, TB_ALIGN_NONE },
1878 { X86::VFNMSUBPSr213rY, X86::VFNMSUBPSr213mY, TB_ALIGN_NONE },
1879 { X86::VFNMSUBPDr213rY, X86::VFNMSUBPDr213mY, TB_ALIGN_NONE },
1881 { X86::VFMADDSUBPSr231r, X86::VFMADDSUBPSr231m, TB_ALIGN_NONE },
1882 { X86::VFMADDSUBPDr231r, X86::VFMADDSUBPDr231m, TB_ALIGN_NONE },
1883 { X86::VFMADDSUBPSr132r, X86::VFMADDSUBPSr132m, TB_ALIGN_NONE },
1884 { X86::VFMADDSUBPDr132r, X86::VFMADDSUBPDr132m, TB_ALIGN_NONE },
1885 { X86::VFMADDSUBPSr213r, X86::VFMADDSUBPSr213m, TB_ALIGN_NONE },
1886 { X86::VFMADDSUBPDr213r, X86::VFMADDSUBPDr213m, TB_ALIGN_NONE },
1887 { X86::VFMADDSUBPSr231rY, X86::VFMADDSUBPSr231mY, TB_ALIGN_NONE },
1888 { X86::VFMADDSUBPDr231rY, X86::VFMADDSUBPDr231mY, TB_ALIGN_NONE },
1889 { X86::VFMADDSUBPSr132rY, X86::VFMADDSUBPSr132mY, TB_ALIGN_NONE },
1890 { X86::VFMADDSUBPDr132rY, X86::VFMADDSUBPDr132mY, TB_ALIGN_NONE },
1891 { X86::VFMADDSUBPSr213rY, X86::VFMADDSUBPSr213mY, TB_ALIGN_NONE },
1892 { X86::VFMADDSUBPDr213rY, X86::VFMADDSUBPDr213mY, TB_ALIGN_NONE },
1894 { X86::VFMSUBADDPSr231r, X86::VFMSUBADDPSr231m, TB_ALIGN_NONE },
1895 { X86::VFMSUBADDPDr231r, X86::VFMSUBADDPDr231m, TB_ALIGN_NONE },
1896 { X86::VFMSUBADDPSr132r, X86::VFMSUBADDPSr132m, TB_ALIGN_NONE },
1897 { X86::VFMSUBADDPDr132r, X86::VFMSUBADDPDr132m, TB_ALIGN_NONE },
1898 { X86::VFMSUBADDPSr213r, X86::VFMSUBADDPSr213m, TB_ALIGN_NONE },
1899 { X86::VFMSUBADDPDr213r, X86::VFMSUBADDPDr213m, TB_ALIGN_NONE },
1900 { X86::VFMSUBADDPSr231rY, X86::VFMSUBADDPSr231mY, TB_ALIGN_NONE },
1901 { X86::VFMSUBADDPDr231rY, X86::VFMSUBADDPDr231mY, TB_ALIGN_NONE },
1902 { X86::VFMSUBADDPSr132rY, X86::VFMSUBADDPSr132mY, TB_ALIGN_NONE },
1903 { X86::VFMSUBADDPDr132rY, X86::VFMSUBADDPDr132mY, TB_ALIGN_NONE },
1904 { X86::VFMSUBADDPSr213rY, X86::VFMSUBADDPSr213mY, TB_ALIGN_NONE },
1905 { X86::VFMSUBADDPDr213rY, X86::VFMSUBADDPDr213mY, TB_ALIGN_NONE },
1907 // FMA4 foldable patterns
1908 { X86::VFMADDSS4rr, X86::VFMADDSS4rm, TB_ALIGN_NONE },
1909 { X86::VFMADDSD4rr, X86::VFMADDSD4rm, TB_ALIGN_NONE },
1910 { X86::VFMADDPS4rr, X86::VFMADDPS4rm, TB_ALIGN_NONE },
1911 { X86::VFMADDPD4rr, X86::VFMADDPD4rm, TB_ALIGN_NONE },
1912 { X86::VFMADDPS4rrY, X86::VFMADDPS4rmY, TB_ALIGN_NONE },
1913 { X86::VFMADDPD4rrY, X86::VFMADDPD4rmY, TB_ALIGN_NONE },
1914 { X86::VFNMADDSS4rr, X86::VFNMADDSS4rm, TB_ALIGN_NONE },
1915 { X86::VFNMADDSD4rr, X86::VFNMADDSD4rm, TB_ALIGN_NONE },
1916 { X86::VFNMADDPS4rr, X86::VFNMADDPS4rm, TB_ALIGN_NONE },
1917 { X86::VFNMADDPD4rr, X86::VFNMADDPD4rm, TB_ALIGN_NONE },
1918 { X86::VFNMADDPS4rrY, X86::VFNMADDPS4rmY, TB_ALIGN_NONE },
1919 { X86::VFNMADDPD4rrY, X86::VFNMADDPD4rmY, TB_ALIGN_NONE },
1920 { X86::VFMSUBSS4rr, X86::VFMSUBSS4rm, TB_ALIGN_NONE },
1921 { X86::VFMSUBSD4rr, X86::VFMSUBSD4rm, TB_ALIGN_NONE },
1922 { X86::VFMSUBPS4rr, X86::VFMSUBPS4rm, TB_ALIGN_NONE },
1923 { X86::VFMSUBPD4rr, X86::VFMSUBPD4rm, TB_ALIGN_NONE },
1924 { X86::VFMSUBPS4rrY, X86::VFMSUBPS4rmY, TB_ALIGN_NONE },
1925 { X86::VFMSUBPD4rrY, X86::VFMSUBPD4rmY, TB_ALIGN_NONE },
1926 { X86::VFNMSUBSS4rr, X86::VFNMSUBSS4rm, TB_ALIGN_NONE },
1927 { X86::VFNMSUBSD4rr, X86::VFNMSUBSD4rm, TB_ALIGN_NONE },
1928 { X86::VFNMSUBPS4rr, X86::VFNMSUBPS4rm, TB_ALIGN_NONE },
1929 { X86::VFNMSUBPD4rr, X86::VFNMSUBPD4rm, TB_ALIGN_NONE },
1930 { X86::VFNMSUBPS4rrY, X86::VFNMSUBPS4rmY, TB_ALIGN_NONE },
1931 { X86::VFNMSUBPD4rrY, X86::VFNMSUBPD4rmY, TB_ALIGN_NONE },
1932 { X86::VFMADDSUBPS4rr, X86::VFMADDSUBPS4rm, TB_ALIGN_NONE },
1933 { X86::VFMADDSUBPD4rr, X86::VFMADDSUBPD4rm, TB_ALIGN_NONE },
1934 { X86::VFMADDSUBPS4rrY, X86::VFMADDSUBPS4rmY, TB_ALIGN_NONE },
1935 { X86::VFMADDSUBPD4rrY, X86::VFMADDSUBPD4rmY, TB_ALIGN_NONE },
1936 { X86::VFMSUBADDPS4rr, X86::VFMSUBADDPS4rm, TB_ALIGN_NONE },
1937 { X86::VFMSUBADDPD4rr, X86::VFMSUBADDPD4rm, TB_ALIGN_NONE },
1938 { X86::VFMSUBADDPS4rrY, X86::VFMSUBADDPS4rmY, TB_ALIGN_NONE },
1939 { X86::VFMSUBADDPD4rrY, X86::VFMSUBADDPD4rmY, TB_ALIGN_NONE },
1941 // XOP foldable instructions
1942 { X86::VPCMOVrrr, X86::VPCMOVrrm, 0 },
1943 { X86::VPCMOVrrrY, X86::VPCMOVrrmY, 0 },
1944 { X86::VPERMIL2PDrr, X86::VPERMIL2PDrm, 0 },
1945 { X86::VPERMIL2PDrrY, X86::VPERMIL2PDrmY, 0 },
1946 { X86::VPERMIL2PSrr, X86::VPERMIL2PSrm, 0 },
1947 { X86::VPERMIL2PSrrY, X86::VPERMIL2PSrmY, 0 },
1948 { X86::VPPERMrrr, X86::VPPERMrrm, 0 },
1950 // AVX-512 VPERMI instructions with 3 source operands.
1951 { X86::VPERMI2Drr, X86::VPERMI2Drm, 0 },
1952 { X86::VPERMI2Qrr, X86::VPERMI2Qrm, 0 },
1953 { X86::VPERMI2PSrr, X86::VPERMI2PSrm, 0 },
1954 { X86::VPERMI2PDrr, X86::VPERMI2PDrm, 0 },
1955 { X86::VBLENDMPDZrr, X86::VBLENDMPDZrm, 0 },
1956 { X86::VBLENDMPSZrr, X86::VBLENDMPSZrm, 0 },
1957 { X86::VPBLENDMDZrr, X86::VPBLENDMDZrm, 0 },
1958 { X86::VPBLENDMQZrr, X86::VPBLENDMQZrm, 0 },
1959 { X86::VBROADCASTSSZrk, X86::VBROADCASTSSZmk, TB_NO_REVERSE },
1960 { X86::VBROADCASTSDZrk, X86::VBROADCASTSDZmk, TB_NO_REVERSE },
1961 { X86::VBROADCASTSSZ256rk, X86::VBROADCASTSSZ256mk, TB_NO_REVERSE },
1962 { X86::VBROADCASTSDZ256rk, X86::VBROADCASTSDZ256mk, TB_NO_REVERSE },
1963 { X86::VBROADCASTSSZ128rk, X86::VBROADCASTSSZ128mk, TB_NO_REVERSE },
1964 // AVX-512 arithmetic instructions
1965 { X86::VADDPSZrrkz, X86::VADDPSZrmkz, 0 },
1966 { X86::VADDPDZrrkz, X86::VADDPDZrmkz, 0 },
1967 { X86::VSUBPSZrrkz, X86::VSUBPSZrmkz, 0 },
1968 { X86::VSUBPDZrrkz, X86::VSUBPDZrmkz, 0 },
1969 { X86::VMULPSZrrkz, X86::VMULPSZrmkz, 0 },
1970 { X86::VMULPDZrrkz, X86::VMULPDZrmkz, 0 },
1971 { X86::VDIVPSZrrkz, X86::VDIVPSZrmkz, 0 },
1972 { X86::VDIVPDZrrkz, X86::VDIVPDZrmkz, 0 },
1973 { X86::VMINPSZrrkz, X86::VMINPSZrmkz, 0 },
1974 { X86::VMINPDZrrkz, X86::VMINPDZrmkz, 0 },
1975 { X86::VMAXPSZrrkz, X86::VMAXPSZrmkz, 0 },
1976 { X86::VMAXPDZrrkz, X86::VMAXPDZrmkz, 0 },
1977 // AVX-512{F,VL} arithmetic instructions 256-bit
1978 { X86::VADDPSZ256rrkz, X86::VADDPSZ256rmkz, 0 },
1979 { X86::VADDPDZ256rrkz, X86::VADDPDZ256rmkz, 0 },
1980 { X86::VSUBPSZ256rrkz, X86::VSUBPSZ256rmkz, 0 },
1981 { X86::VSUBPDZ256rrkz, X86::VSUBPDZ256rmkz, 0 },
1982 { X86::VMULPSZ256rrkz, X86::VMULPSZ256rmkz, 0 },
1983 { X86::VMULPDZ256rrkz, X86::VMULPDZ256rmkz, 0 },
1984 { X86::VDIVPSZ256rrkz, X86::VDIVPSZ256rmkz, 0 },
1985 { X86::VDIVPDZ256rrkz, X86::VDIVPDZ256rmkz, 0 },
1986 { X86::VMINPSZ256rrkz, X86::VMINPSZ256rmkz, 0 },
1987 { X86::VMINPDZ256rrkz, X86::VMINPDZ256rmkz, 0 },
1988 { X86::VMAXPSZ256rrkz, X86::VMAXPSZ256rmkz, 0 },
1989 { X86::VMAXPDZ256rrkz, X86::VMAXPDZ256rmkz, 0 },
1990 // AVX-512{F,VL} arithmetic instructions 128-bit
1991 { X86::VADDPSZ128rrkz, X86::VADDPSZ128rmkz, 0 },
1992 { X86::VADDPDZ128rrkz, X86::VADDPDZ128rmkz, 0 },
1993 { X86::VSUBPSZ128rrkz, X86::VSUBPSZ128rmkz, 0 },
1994 { X86::VSUBPDZ128rrkz, X86::VSUBPDZ128rmkz, 0 },
1995 { X86::VMULPSZ128rrkz, X86::VMULPSZ128rmkz, 0 },
1996 { X86::VMULPDZ128rrkz, X86::VMULPDZ128rmkz, 0 },
1997 { X86::VDIVPSZ128rrkz, X86::VDIVPSZ128rmkz, 0 },
1998 { X86::VDIVPDZ128rrkz, X86::VDIVPDZ128rmkz, 0 },
1999 { X86::VMINPSZ128rrkz, X86::VMINPSZ128rmkz, 0 },
2000 { X86::VMINPDZ128rrkz, X86::VMINPDZ128rmkz, 0 },
2001 { X86::VMAXPSZ128rrkz, X86::VMAXPSZ128rmkz, 0 },
2002 { X86::VMAXPDZ128rrkz, X86::VMAXPDZ128rmkz, 0 }
2005 for (X86MemoryFoldTableEntry Entry : MemoryFoldTable3) {
2006 AddTableEntry(RegOp2MemOpTable3, MemOp2RegOpTable,
2007 Entry.RegOp, Entry.MemOp,
2008 // Index 3, folded load
2009 Entry.Flags | TB_INDEX_3 | TB_FOLDED_LOAD);
2012 static const X86MemoryFoldTableEntry MemoryFoldTable4[] = {
2013 // AVX-512 foldable instructions
2014 { X86::VADDPSZrrk, X86::VADDPSZrmk, 0 },
2015 { X86::VADDPDZrrk, X86::VADDPDZrmk, 0 },
2016 { X86::VSUBPSZrrk, X86::VSUBPSZrmk, 0 },
2017 { X86::VSUBPDZrrk, X86::VSUBPDZrmk, 0 },
2018 { X86::VMULPSZrrk, X86::VMULPSZrmk, 0 },
2019 { X86::VMULPDZrrk, X86::VMULPDZrmk, 0 },
2020 { X86::VDIVPSZrrk, X86::VDIVPSZrmk, 0 },
2021 { X86::VDIVPDZrrk, X86::VDIVPDZrmk, 0 },
2022 { X86::VMINPSZrrk, X86::VMINPSZrmk, 0 },
2023 { X86::VMINPDZrrk, X86::VMINPDZrmk, 0 },
2024 { X86::VMAXPSZrrk, X86::VMAXPSZrmk, 0 },
2025 { X86::VMAXPDZrrk, X86::VMAXPDZrmk, 0 },
2026 // AVX-512{F,VL} foldable instructions 256-bit
2027 { X86::VADDPSZ256rrk, X86::VADDPSZ256rmk, 0 },
2028 { X86::VADDPDZ256rrk, X86::VADDPDZ256rmk, 0 },
2029 { X86::VSUBPSZ256rrk, X86::VSUBPSZ256rmk, 0 },
2030 { X86::VSUBPDZ256rrk, X86::VSUBPDZ256rmk, 0 },
2031 { X86::VMULPSZ256rrk, X86::VMULPSZ256rmk, 0 },
2032 { X86::VMULPDZ256rrk, X86::VMULPDZ256rmk, 0 },
2033 { X86::VDIVPSZ256rrk, X86::VDIVPSZ256rmk, 0 },
2034 { X86::VDIVPDZ256rrk, X86::VDIVPDZ256rmk, 0 },
2035 { X86::VMINPSZ256rrk, X86::VMINPSZ256rmk, 0 },
2036 { X86::VMINPDZ256rrk, X86::VMINPDZ256rmk, 0 },
2037 { X86::VMAXPSZ256rrk, X86::VMAXPSZ256rmk, 0 },
2038 { X86::VMAXPDZ256rrk, X86::VMAXPDZ256rmk, 0 },
2039 // AVX-512{F,VL} foldable instructions 128-bit
2040 { X86::VADDPSZ128rrk, X86::VADDPSZ128rmk, 0 },
2041 { X86::VADDPDZ128rrk, X86::VADDPDZ128rmk, 0 },
2042 { X86::VSUBPSZ128rrk, X86::VSUBPSZ128rmk, 0 },
2043 { X86::VSUBPDZ128rrk, X86::VSUBPDZ128rmk, 0 },
2044 { X86::VMULPSZ128rrk, X86::VMULPSZ128rmk, 0 },
2045 { X86::VMULPDZ128rrk, X86::VMULPDZ128rmk, 0 },
2046 { X86::VDIVPSZ128rrk, X86::VDIVPSZ128rmk, 0 },
2047 { X86::VDIVPDZ128rrk, X86::VDIVPDZ128rmk, 0 },
2048 { X86::VMINPSZ128rrk, X86::VMINPSZ128rmk, 0 },
2049 { X86::VMINPDZ128rrk, X86::VMINPDZ128rmk, 0 },
2050 { X86::VMAXPSZ128rrk, X86::VMAXPSZ128rmk, 0 },
2051 { X86::VMAXPDZ128rrk, X86::VMAXPDZ128rmk, 0 }
2054 for (X86MemoryFoldTableEntry Entry : MemoryFoldTable4) {
2055 AddTableEntry(RegOp2MemOpTable4, MemOp2RegOpTable,
2056 Entry.RegOp, Entry.MemOp,
2057 // Index 4, folded load
2058 Entry.Flags | TB_INDEX_4 | TB_FOLDED_LOAD);
2063 X86InstrInfo::AddTableEntry(RegOp2MemOpTableType &R2MTable,
2064 MemOp2RegOpTableType &M2RTable,
2065 uint16_t RegOp, uint16_t MemOp, uint16_t Flags) {
2066 if ((Flags & TB_NO_FORWARD) == 0) {
2067 assert(!R2MTable.count(RegOp) && "Duplicate entry!");
2068 R2MTable[RegOp] = std::make_pair(MemOp, Flags);
2070 if ((Flags & TB_NO_REVERSE) == 0) {
2071 assert(!M2RTable.count(MemOp) &&
2072 "Duplicated entries in unfolding maps?");
2073 M2RTable[MemOp] = std::make_pair(RegOp, Flags);
2078 X86InstrInfo::isCoalescableExtInstr(const MachineInstr &MI,
2079 unsigned &SrcReg, unsigned &DstReg,
2080 unsigned &SubIdx) const {
2081 switch (MI.getOpcode()) {
2083 case X86::MOVSX16rr8:
2084 case X86::MOVZX16rr8:
2085 case X86::MOVSX32rr8:
2086 case X86::MOVZX32rr8:
2087 case X86::MOVSX64rr8:
2088 if (!Subtarget.is64Bit())
2089 // It's not always legal to reference the low 8-bit of the larger
2090 // register in 32-bit mode.
2092 case X86::MOVSX32rr16:
2093 case X86::MOVZX32rr16:
2094 case X86::MOVSX64rr16:
2095 case X86::MOVSX64rr32: {
2096 if (MI.getOperand(0).getSubReg() || MI.getOperand(1).getSubReg())
2099 SrcReg = MI.getOperand(1).getReg();
2100 DstReg = MI.getOperand(0).getReg();
2101 switch (MI.getOpcode()) {
2102 default: llvm_unreachable("Unreachable!");
2103 case X86::MOVSX16rr8:
2104 case X86::MOVZX16rr8:
2105 case X86::MOVSX32rr8:
2106 case X86::MOVZX32rr8:
2107 case X86::MOVSX64rr8:
2108 SubIdx = X86::sub_8bit;
2110 case X86::MOVSX32rr16:
2111 case X86::MOVZX32rr16:
2112 case X86::MOVSX64rr16:
2113 SubIdx = X86::sub_16bit;
2115 case X86::MOVSX64rr32:
2116 SubIdx = X86::sub_32bit;
2125 int X86InstrInfo::getSPAdjust(const MachineInstr &MI) const {
2126 const MachineFunction *MF = MI.getParent()->getParent();
2127 const TargetFrameLowering *TFI = MF->getSubtarget().getFrameLowering();
2129 if (MI.getOpcode() == getCallFrameSetupOpcode() ||
2130 MI.getOpcode() == getCallFrameDestroyOpcode()) {
2131 unsigned StackAlign = TFI->getStackAlignment();
2133 (MI.getOperand(0).getImm() + StackAlign - 1) / StackAlign * StackAlign;
2135 SPAdj -= MI.getOperand(1).getImm();
2137 if (MI.getOpcode() == getCallFrameSetupOpcode())
2143 // To know whether a call adjusts the stack, we need information
2144 // that is bound to the following ADJCALLSTACKUP pseudo.
2145 // Look for the next ADJCALLSTACKUP that follows the call.
2147 const MachineBasicBlock *MBB = MI.getParent();
2148 auto I = ++MachineBasicBlock::const_iterator(MI);
2149 for (auto E = MBB->end(); I != E; ++I) {
2150 if (I->getOpcode() == getCallFrameDestroyOpcode() ||
2155 // If we could not find a frame destroy opcode, then it has already
2156 // been simplified, so we don't care.
2157 if (I->getOpcode() != getCallFrameDestroyOpcode())
2160 return -(I->getOperand(1).getImm());
2163 // Currently handle only PUSHes we can reasonably expect to see
2164 // in call sequences
2165 switch (MI.getOpcode()) {
2170 case X86::PUSH32rmm:
2171 case X86::PUSH32rmr:
2176 case X86::PUSH64rmm:
2177 case X86::PUSH64rmr:
2178 case X86::PUSH64i32:
2183 /// Return true and the FrameIndex if the specified
2184 /// operand and follow operands form a reference to the stack frame.
2185 bool X86InstrInfo::isFrameOperand(const MachineInstr &MI, unsigned int Op,
2186 int &FrameIndex) const {
2187 if (MI.getOperand(Op + X86::AddrBaseReg).isFI() &&
2188 MI.getOperand(Op + X86::AddrScaleAmt).isImm() &&
2189 MI.getOperand(Op + X86::AddrIndexReg).isReg() &&
2190 MI.getOperand(Op + X86::AddrDisp).isImm() &&
2191 MI.getOperand(Op + X86::AddrScaleAmt).getImm() == 1 &&
2192 MI.getOperand(Op + X86::AddrIndexReg).getReg() == 0 &&
2193 MI.getOperand(Op + X86::AddrDisp).getImm() == 0) {
2194 FrameIndex = MI.getOperand(Op + X86::AddrBaseReg).getIndex();
2200 static bool isFrameLoadOpcode(int Opcode) {
2219 case X86::VMOVAPSrm:
2220 case X86::VMOVUPSrm:
2221 case X86::VMOVAPDrm:
2222 case X86::VMOVUPDrm:
2223 case X86::VMOVDQArm:
2224 case X86::VMOVDQUrm:
2225 case X86::VMOVUPSYrm:
2226 case X86::VMOVAPSYrm:
2227 case X86::VMOVUPDYrm:
2228 case X86::VMOVAPDYrm:
2229 case X86::VMOVDQUYrm:
2230 case X86::VMOVDQAYrm:
2231 case X86::MMX_MOVD64rm:
2232 case X86::MMX_MOVQ64rm:
2233 case X86::VMOVSSZrm:
2234 case X86::VMOVSDZrm:
2235 case X86::VMOVAPSZrm:
2236 case X86::VMOVAPSZ128rm:
2237 case X86::VMOVAPSZ256rm:
2238 case X86::VMOVUPSZrm:
2239 case X86::VMOVUPSZ128rm:
2240 case X86::VMOVUPSZ256rm:
2241 case X86::VMOVAPDZrm:
2242 case X86::VMOVAPDZ128rm:
2243 case X86::VMOVAPDZ256rm:
2244 case X86::VMOVUPDZrm:
2245 case X86::VMOVUPDZ128rm:
2246 case X86::VMOVUPDZ256rm:
2247 case X86::VMOVDQA32Zrm:
2248 case X86::VMOVDQA32Z128rm:
2249 case X86::VMOVDQA32Z256rm:
2250 case X86::VMOVDQU32Zrm:
2251 case X86::VMOVDQU32Z128rm:
2252 case X86::VMOVDQU32Z256rm:
2253 case X86::VMOVDQA64Zrm:
2254 case X86::VMOVDQA64Z128rm:
2255 case X86::VMOVDQA64Z256rm:
2256 case X86::VMOVDQU64Zrm:
2257 case X86::VMOVDQU64Z128rm:
2258 case X86::VMOVDQU64Z256rm:
2259 case X86::VMOVDQU8Zrm:
2260 case X86::VMOVDQU8Z128rm:
2261 case X86::VMOVDQU8Z256rm:
2262 case X86::VMOVDQU16Zrm:
2263 case X86::VMOVDQU16Z128rm:
2264 case X86::VMOVDQU16Z256rm:
2273 static bool isFrameStoreOpcode(int Opcode) {
2280 case X86::ST_FpP64m:
2291 case X86::VMOVAPSmr:
2292 case X86::VMOVUPSmr:
2293 case X86::VMOVAPDmr:
2294 case X86::VMOVUPDmr:
2295 case X86::VMOVDQAmr:
2296 case X86::VMOVDQUmr:
2297 case X86::VMOVUPSYmr:
2298 case X86::VMOVAPSYmr:
2299 case X86::VMOVUPDYmr:
2300 case X86::VMOVAPDYmr:
2301 case X86::VMOVDQUYmr:
2302 case X86::VMOVDQAYmr:
2303 case X86::VMOVSSZmr:
2304 case X86::VMOVSDZmr:
2305 case X86::VMOVUPSZmr:
2306 case X86::VMOVUPSZ128mr:
2307 case X86::VMOVUPSZ256mr:
2308 case X86::VMOVAPSZmr:
2309 case X86::VMOVAPSZ128mr:
2310 case X86::VMOVAPSZ256mr:
2311 case X86::VMOVUPDZmr:
2312 case X86::VMOVUPDZ128mr:
2313 case X86::VMOVUPDZ256mr:
2314 case X86::VMOVAPDZmr:
2315 case X86::VMOVAPDZ128mr:
2316 case X86::VMOVAPDZ256mr:
2317 case X86::VMOVDQA32Zmr:
2318 case X86::VMOVDQA32Z128mr:
2319 case X86::VMOVDQA32Z256mr:
2320 case X86::VMOVDQU32Zmr:
2321 case X86::VMOVDQU32Z128mr:
2322 case X86::VMOVDQU32Z256mr:
2323 case X86::VMOVDQA64Zmr:
2324 case X86::VMOVDQA64Z128mr:
2325 case X86::VMOVDQA64Z256mr:
2326 case X86::VMOVDQU64Zmr:
2327 case X86::VMOVDQU64Z128mr:
2328 case X86::VMOVDQU64Z256mr:
2329 case X86::VMOVDQU8Zmr:
2330 case X86::VMOVDQU8Z128mr:
2331 case X86::VMOVDQU8Z256mr:
2332 case X86::VMOVDQU16Zmr:
2333 case X86::VMOVDQU16Z128mr:
2334 case X86::VMOVDQU16Z256mr:
2335 case X86::MMX_MOVD64mr:
2336 case X86::MMX_MOVQ64mr:
2337 case X86::MMX_MOVNTQmr:
2347 unsigned X86InstrInfo::isLoadFromStackSlot(const MachineInstr &MI,
2348 int &FrameIndex) const {
2349 if (isFrameLoadOpcode(MI.getOpcode()))
2350 if (MI.getOperand(0).getSubReg() == 0 && isFrameOperand(MI, 1, FrameIndex))
2351 return MI.getOperand(0).getReg();
2355 unsigned X86InstrInfo::isLoadFromStackSlotPostFE(const MachineInstr &MI,
2356 int &FrameIndex) const {
2357 if (isFrameLoadOpcode(MI.getOpcode())) {
2359 if ((Reg = isLoadFromStackSlot(MI, FrameIndex)))
2361 // Check for post-frame index elimination operations
2362 const MachineMemOperand *Dummy;
2363 return hasLoadFromStackSlot(MI, Dummy, FrameIndex);
2368 unsigned X86InstrInfo::isStoreToStackSlot(const MachineInstr &MI,
2369 int &FrameIndex) const {
2370 if (isFrameStoreOpcode(MI.getOpcode()))
2371 if (MI.getOperand(X86::AddrNumOperands).getSubReg() == 0 &&
2372 isFrameOperand(MI, 0, FrameIndex))
2373 return MI.getOperand(X86::AddrNumOperands).getReg();
2377 unsigned X86InstrInfo::isStoreToStackSlotPostFE(const MachineInstr &MI,
2378 int &FrameIndex) const {
2379 if (isFrameStoreOpcode(MI.getOpcode())) {
2381 if ((Reg = isStoreToStackSlot(MI, FrameIndex)))
2383 // Check for post-frame index elimination operations
2384 const MachineMemOperand *Dummy;
2385 return hasStoreToStackSlot(MI, Dummy, FrameIndex);
2390 /// Return true if register is PIC base; i.e.g defined by X86::MOVPC32r.
2391 static bool regIsPICBase(unsigned BaseReg, const MachineRegisterInfo &MRI) {
2392 // Don't waste compile time scanning use-def chains of physregs.
2393 if (!TargetRegisterInfo::isVirtualRegister(BaseReg))
2395 bool isPICBase = false;
2396 for (MachineRegisterInfo::def_instr_iterator I = MRI.def_instr_begin(BaseReg),
2397 E = MRI.def_instr_end(); I != E; ++I) {
2398 MachineInstr *DefMI = &*I;
2399 if (DefMI->getOpcode() != X86::MOVPC32r)
2401 assert(!isPICBase && "More than one PIC base?");
2407 bool X86InstrInfo::isReallyTriviallyReMaterializable(const MachineInstr &MI,
2408 AliasAnalysis *AA) const {
2409 switch (MI.getOpcode()) {
2425 case X86::VMOVAPSrm:
2426 case X86::VMOVUPSrm:
2427 case X86::VMOVAPDrm:
2428 case X86::VMOVDQArm:
2429 case X86::VMOVDQUrm:
2430 case X86::VMOVAPSYrm:
2431 case X86::VMOVUPSYrm:
2432 case X86::VMOVAPDYrm:
2433 case X86::VMOVDQAYrm:
2434 case X86::VMOVDQUYrm:
2435 case X86::MMX_MOVD64rm:
2436 case X86::MMX_MOVQ64rm:
2437 case X86::FsVMOVAPSrm:
2438 case X86::FsVMOVAPDrm:
2439 case X86::FsMOVAPSrm:
2440 case X86::FsMOVAPDrm:
2442 case X86::VMOVAPDZ128rm:
2443 case X86::VMOVAPDZ256rm:
2444 case X86::VMOVAPDZrm:
2445 case X86::VMOVAPSZ128rm:
2446 case X86::VMOVAPSZ256rm:
2447 case X86::VMOVAPSZrm:
2448 case X86::VMOVDQA32Z128rm:
2449 case X86::VMOVDQA32Z256rm:
2450 case X86::VMOVDQA32Zrm:
2451 case X86::VMOVDQA64Z128rm:
2452 case X86::VMOVDQA64Z256rm:
2453 case X86::VMOVDQA64Zrm:
2454 case X86::VMOVDQU16Z128rm:
2455 case X86::VMOVDQU16Z256rm:
2456 case X86::VMOVDQU16Zrm:
2457 case X86::VMOVDQU32Z128rm:
2458 case X86::VMOVDQU32Z256rm:
2459 case X86::VMOVDQU32Zrm:
2460 case X86::VMOVDQU64Z128rm:
2461 case X86::VMOVDQU64Z256rm:
2462 case X86::VMOVDQU64Zrm:
2463 case X86::VMOVDQU8Z128rm:
2464 case X86::VMOVDQU8Z256rm:
2465 case X86::VMOVDQU8Zrm:
2466 case X86::VMOVUPSZ128rm:
2467 case X86::VMOVUPSZ256rm:
2468 case X86::VMOVUPSZrm: {
2469 // Loads from constant pools are trivially rematerializable.
2470 if (MI.getOperand(1 + X86::AddrBaseReg).isReg() &&
2471 MI.getOperand(1 + X86::AddrScaleAmt).isImm() &&
2472 MI.getOperand(1 + X86::AddrIndexReg).isReg() &&
2473 MI.getOperand(1 + X86::AddrIndexReg).getReg() == 0 &&
2474 MI.isInvariantLoad(AA)) {
2475 unsigned BaseReg = MI.getOperand(1 + X86::AddrBaseReg).getReg();
2476 if (BaseReg == 0 || BaseReg == X86::RIP)
2478 // Allow re-materialization of PIC load.
2479 if (!ReMatPICStubLoad && MI.getOperand(1 + X86::AddrDisp).isGlobal())
2481 const MachineFunction &MF = *MI.getParent()->getParent();
2482 const MachineRegisterInfo &MRI = MF.getRegInfo();
2483 return regIsPICBase(BaseReg, MRI);
2490 if (MI.getOperand(1 + X86::AddrScaleAmt).isImm() &&
2491 MI.getOperand(1 + X86::AddrIndexReg).isReg() &&
2492 MI.getOperand(1 + X86::AddrIndexReg).getReg() == 0 &&
2493 !MI.getOperand(1 + X86::AddrDisp).isReg()) {
2494 // lea fi#, lea GV, etc. are all rematerializable.
2495 if (!MI.getOperand(1 + X86::AddrBaseReg).isReg())
2497 unsigned BaseReg = MI.getOperand(1 + X86::AddrBaseReg).getReg();
2500 // Allow re-materialization of lea PICBase + x.
2501 const MachineFunction &MF = *MI.getParent()->getParent();
2502 const MachineRegisterInfo &MRI = MF.getRegInfo();
2503 return regIsPICBase(BaseReg, MRI);
2509 // All other instructions marked M_REMATERIALIZABLE are always trivially
2510 // rematerializable.
2514 bool X86InstrInfo::isSafeToClobberEFLAGS(MachineBasicBlock &MBB,
2515 MachineBasicBlock::iterator I) const {
2516 MachineBasicBlock::iterator E = MBB.end();
2518 // For compile time consideration, if we are not able to determine the
2519 // safety after visiting 4 instructions in each direction, we will assume
2521 MachineBasicBlock::iterator Iter = I;
2522 for (unsigned i = 0; Iter != E && i < 4; ++i) {
2523 bool SeenDef = false;
2524 for (unsigned j = 0, e = Iter->getNumOperands(); j != e; ++j) {
2525 MachineOperand &MO = Iter->getOperand(j);
2526 if (MO.isRegMask() && MO.clobbersPhysReg(X86::EFLAGS))
2530 if (MO.getReg() == X86::EFLAGS) {
2538 // This instruction defines EFLAGS, no need to look any further.
2541 // Skip over DBG_VALUE.
2542 while (Iter != E && Iter->isDebugValue())
2546 // It is safe to clobber EFLAGS at the end of a block of no successor has it
2549 for (MachineBasicBlock *S : MBB.successors())
2550 if (S->isLiveIn(X86::EFLAGS))
2555 MachineBasicBlock::iterator B = MBB.begin();
2557 for (unsigned i = 0; i < 4; ++i) {
2558 // If we make it to the beginning of the block, it's safe to clobber
2559 // EFLAGS iff EFLAGS is not live-in.
2561 return !MBB.isLiveIn(X86::EFLAGS);
2564 // Skip over DBG_VALUE.
2565 while (Iter != B && Iter->isDebugValue())
2568 bool SawKill = false;
2569 for (unsigned j = 0, e = Iter->getNumOperands(); j != e; ++j) {
2570 MachineOperand &MO = Iter->getOperand(j);
2571 // A register mask may clobber EFLAGS, but we should still look for a
2573 if (MO.isRegMask() && MO.clobbersPhysReg(X86::EFLAGS))
2575 if (MO.isReg() && MO.getReg() == X86::EFLAGS) {
2576 if (MO.isDef()) return MO.isDead();
2577 if (MO.isKill()) SawKill = true;
2582 // This instruction kills EFLAGS and doesn't redefine it, so
2583 // there's no need to look further.
2587 // Conservative answer.
2591 void X86InstrInfo::reMaterialize(MachineBasicBlock &MBB,
2592 MachineBasicBlock::iterator I,
2593 unsigned DestReg, unsigned SubIdx,
2594 const MachineInstr &Orig,
2595 const TargetRegisterInfo &TRI) const {
2596 bool ClobbersEFLAGS = false;
2597 for (const MachineOperand &MO : Orig.operands()) {
2598 if (MO.isReg() && MO.isDef() && MO.getReg() == X86::EFLAGS) {
2599 ClobbersEFLAGS = true;
2604 if (ClobbersEFLAGS && !isSafeToClobberEFLAGS(MBB, I)) {
2605 // The instruction clobbers EFLAGS. Re-materialize as MOV32ri to avoid side
2608 switch (Orig.getOpcode()) {
2609 case X86::MOV32r0: Value = 0; break;
2610 case X86::MOV32r1: Value = 1; break;
2611 case X86::MOV32r_1: Value = -1; break;
2613 llvm_unreachable("Unexpected instruction!");
2616 const DebugLoc &DL = Orig.getDebugLoc();
2617 BuildMI(MBB, I, DL, get(X86::MOV32ri))
2618 .addOperand(Orig.getOperand(0))
2621 MachineInstr *MI = MBB.getParent()->CloneMachineInstr(&Orig);
2625 MachineInstr &NewMI = *std::prev(I);
2626 NewMI.substituteRegister(Orig.getOperand(0).getReg(), DestReg, SubIdx, TRI);
2629 /// True if MI has a condition code def, e.g. EFLAGS, that is not marked dead.
2630 bool X86InstrInfo::hasLiveCondCodeDef(MachineInstr &MI) const {
2631 for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
2632 MachineOperand &MO = MI.getOperand(i);
2633 if (MO.isReg() && MO.isDef() &&
2634 MO.getReg() == X86::EFLAGS && !MO.isDead()) {
2641 /// Check whether the shift count for a machine operand is non-zero.
2642 inline static unsigned getTruncatedShiftCount(MachineInstr &MI,
2643 unsigned ShiftAmtOperandIdx) {
2644 // The shift count is six bits with the REX.W prefix and five bits without.
2645 unsigned ShiftCountMask = (MI.getDesc().TSFlags & X86II::REX_W) ? 63 : 31;
2646 unsigned Imm = MI.getOperand(ShiftAmtOperandIdx).getImm();
2647 return Imm & ShiftCountMask;
2650 /// Check whether the given shift count is appropriate
2651 /// can be represented by a LEA instruction.
2652 inline static bool isTruncatedShiftCountForLEA(unsigned ShAmt) {
2653 // Left shift instructions can be transformed into load-effective-address
2654 // instructions if we can encode them appropriately.
2655 // A LEA instruction utilizes a SIB byte to encode its scale factor.
2656 // The SIB.scale field is two bits wide which means that we can encode any
2657 // shift amount less than 4.
2658 return ShAmt < 4 && ShAmt > 0;
2661 bool X86InstrInfo::classifyLEAReg(MachineInstr &MI, const MachineOperand &Src,
2662 unsigned Opc, bool AllowSP, unsigned &NewSrc,
2663 bool &isKill, bool &isUndef,
2664 MachineOperand &ImplicitOp,
2665 LiveVariables *LV) const {
2666 MachineFunction &MF = *MI.getParent()->getParent();
2667 const TargetRegisterClass *RC;
2669 RC = Opc != X86::LEA32r ? &X86::GR64RegClass : &X86::GR32RegClass;
2671 RC = Opc != X86::LEA32r ?
2672 &X86::GR64_NOSPRegClass : &X86::GR32_NOSPRegClass;
2674 unsigned SrcReg = Src.getReg();
2676 // For both LEA64 and LEA32 the register already has essentially the right
2677 // type (32-bit or 64-bit) we may just need to forbid SP.
2678 if (Opc != X86::LEA64_32r) {
2680 isKill = Src.isKill();
2681 isUndef = Src.isUndef();
2683 if (TargetRegisterInfo::isVirtualRegister(NewSrc) &&
2684 !MF.getRegInfo().constrainRegClass(NewSrc, RC))
2690 // This is for an LEA64_32r and incoming registers are 32-bit. One way or
2691 // another we need to add 64-bit registers to the final MI.
2692 if (TargetRegisterInfo::isPhysicalRegister(SrcReg)) {
2694 ImplicitOp.setImplicit();
2696 NewSrc = getX86SubSuperRegister(Src.getReg(), 64);
2697 MachineBasicBlock::LivenessQueryResult LQR =
2698 MI.getParent()->computeRegisterLiveness(&getRegisterInfo(), NewSrc, MI);
2701 case MachineBasicBlock::LQR_Unknown:
2702 // We can't give sane liveness flags to the instruction, abandon LEA
2705 case MachineBasicBlock::LQR_Live:
2706 isKill = MI.killsRegister(SrcReg);
2710 // The physreg itself is dead, so we have to use it as an <undef>.
2716 // Virtual register of the wrong class, we have to create a temporary 64-bit
2717 // vreg to feed into the LEA.
2718 NewSrc = MF.getRegInfo().createVirtualRegister(RC);
2719 MachineInstr *Copy = BuildMI(*MI.getParent(), MI, MI.getDebugLoc(),
2720 get(TargetOpcode::COPY))
2721 .addReg(NewSrc, RegState::Define | RegState::Undef, X86::sub_32bit)
2724 // Which is obviously going to be dead after we're done with it.
2729 LV->replaceKillInstruction(SrcReg, MI, *Copy);
2732 // We've set all the parameters without issue.
2736 /// Helper for convertToThreeAddress when 16-bit LEA is disabled, use 32-bit
2737 /// LEA to form 3-address code by promoting to a 32-bit superregister and then
2738 /// truncating back down to a 16-bit subregister.
2739 MachineInstr *X86InstrInfo::convertToThreeAddressWithLEA(
2740 unsigned MIOpc, MachineFunction::iterator &MFI, MachineInstr &MI,
2741 LiveVariables *LV) const {
2742 MachineBasicBlock::iterator MBBI = MI.getIterator();
2743 unsigned Dest = MI.getOperand(0).getReg();
2744 unsigned Src = MI.getOperand(1).getReg();
2745 bool isDead = MI.getOperand(0).isDead();
2746 bool isKill = MI.getOperand(1).isKill();
2748 MachineRegisterInfo &RegInfo = MFI->getParent()->getRegInfo();
2749 unsigned leaOutReg = RegInfo.createVirtualRegister(&X86::GR32RegClass);
2750 unsigned Opc, leaInReg;
2751 if (Subtarget.is64Bit()) {
2752 Opc = X86::LEA64_32r;
2753 leaInReg = RegInfo.createVirtualRegister(&X86::GR64_NOSPRegClass);
2756 leaInReg = RegInfo.createVirtualRegister(&X86::GR32_NOSPRegClass);
2759 // Build and insert into an implicit UNDEF value. This is OK because
2760 // well be shifting and then extracting the lower 16-bits.
2761 // This has the potential to cause partial register stall. e.g.
2762 // movw (%rbp,%rcx,2), %dx
2763 // leal -65(%rdx), %esi
2764 // But testing has shown this *does* help performance in 64-bit mode (at
2765 // least on modern x86 machines).
2766 BuildMI(*MFI, MBBI, MI.getDebugLoc(), get(X86::IMPLICIT_DEF), leaInReg);
2767 MachineInstr *InsMI =
2768 BuildMI(*MFI, MBBI, MI.getDebugLoc(), get(TargetOpcode::COPY))
2769 .addReg(leaInReg, RegState::Define, X86::sub_16bit)
2770 .addReg(Src, getKillRegState(isKill));
2772 MachineInstrBuilder MIB =
2773 BuildMI(*MFI, MBBI, MI.getDebugLoc(), get(Opc), leaOutReg);
2775 default: llvm_unreachable("Unreachable!");
2776 case X86::SHL16ri: {
2777 unsigned ShAmt = MI.getOperand(2).getImm();
2778 MIB.addReg(0).addImm(1ULL << ShAmt)
2779 .addReg(leaInReg, RegState::Kill).addImm(0).addReg(0);
2783 addRegOffset(MIB, leaInReg, true, 1);
2786 addRegOffset(MIB, leaInReg, true, -1);
2790 case X86::ADD16ri_DB:
2791 case X86::ADD16ri8_DB:
2792 addRegOffset(MIB, leaInReg, true, MI.getOperand(2).getImm());
2795 case X86::ADD16rr_DB: {
2796 unsigned Src2 = MI.getOperand(2).getReg();
2797 bool isKill2 = MI.getOperand(2).isKill();
2798 unsigned leaInReg2 = 0;
2799 MachineInstr *InsMI2 = nullptr;
2801 // ADD16rr %reg1028<kill>, %reg1028
2802 // just a single insert_subreg.
2803 addRegReg(MIB, leaInReg, true, leaInReg, false);
2805 if (Subtarget.is64Bit())
2806 leaInReg2 = RegInfo.createVirtualRegister(&X86::GR64_NOSPRegClass);
2808 leaInReg2 = RegInfo.createVirtualRegister(&X86::GR32_NOSPRegClass);
2809 // Build and insert into an implicit UNDEF value. This is OK because
2810 // well be shifting and then extracting the lower 16-bits.
2811 BuildMI(*MFI, &*MIB, MI.getDebugLoc(), get(X86::IMPLICIT_DEF), leaInReg2);
2812 InsMI2 = BuildMI(*MFI, &*MIB, MI.getDebugLoc(), get(TargetOpcode::COPY))
2813 .addReg(leaInReg2, RegState::Define, X86::sub_16bit)
2814 .addReg(Src2, getKillRegState(isKill2));
2815 addRegReg(MIB, leaInReg, true, leaInReg2, true);
2817 if (LV && isKill2 && InsMI2)
2818 LV->replaceKillInstruction(Src2, MI, *InsMI2);
2823 MachineInstr *NewMI = MIB;
2824 MachineInstr *ExtMI =
2825 BuildMI(*MFI, MBBI, MI.getDebugLoc(), get(TargetOpcode::COPY))
2826 .addReg(Dest, RegState::Define | getDeadRegState(isDead))
2827 .addReg(leaOutReg, RegState::Kill, X86::sub_16bit);
2830 // Update live variables
2831 LV->getVarInfo(leaInReg).Kills.push_back(NewMI);
2832 LV->getVarInfo(leaOutReg).Kills.push_back(ExtMI);
2834 LV->replaceKillInstruction(Src, MI, *InsMI);
2836 LV->replaceKillInstruction(Dest, MI, *ExtMI);
2842 /// This method must be implemented by targets that
2843 /// set the M_CONVERTIBLE_TO_3_ADDR flag. When this flag is set, the target
2844 /// may be able to convert a two-address instruction into a true
2845 /// three-address instruction on demand. This allows the X86 target (for
2846 /// example) to convert ADD and SHL instructions into LEA instructions if they
2847 /// would require register copies due to two-addressness.
2849 /// This method returns a null pointer if the transformation cannot be
2850 /// performed, otherwise it returns the new instruction.
2853 X86InstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI,
2854 MachineInstr &MI, LiveVariables *LV) const {
2855 // The following opcodes also sets the condition code register(s). Only
2856 // convert them to equivalent lea if the condition code register def's
2858 if (hasLiveCondCodeDef(MI))
2861 MachineFunction &MF = *MI.getParent()->getParent();
2862 // All instructions input are two-addr instructions. Get the known operands.
2863 const MachineOperand &Dest = MI.getOperand(0);
2864 const MachineOperand &Src = MI.getOperand(1);
2866 MachineInstr *NewMI = nullptr;
2867 // FIXME: 16-bit LEA's are really slow on Athlons, but not bad on P4's. When
2868 // we have better subtarget support, enable the 16-bit LEA generation here.
2869 // 16-bit LEA is also slow on Core2.
2870 bool DisableLEA16 = true;
2871 bool is64Bit = Subtarget.is64Bit();
2873 unsigned MIOpc = MI.getOpcode();
2875 default: return nullptr;
2876 case X86::SHL64ri: {
2877 assert(MI.getNumOperands() >= 3 && "Unknown shift instruction!");
2878 unsigned ShAmt = getTruncatedShiftCount(MI, 2);
2879 if (!isTruncatedShiftCountForLEA(ShAmt)) return nullptr;
2881 // LEA can't handle RSP.
2882 if (TargetRegisterInfo::isVirtualRegister(Src.getReg()) &&
2883 !MF.getRegInfo().constrainRegClass(Src.getReg(),
2884 &X86::GR64_NOSPRegClass))
2887 NewMI = BuildMI(MF, MI.getDebugLoc(), get(X86::LEA64r))
2890 .addImm(1ULL << ShAmt)
2896 case X86::SHL32ri: {
2897 assert(MI.getNumOperands() >= 3 && "Unknown shift instruction!");
2898 unsigned ShAmt = getTruncatedShiftCount(MI, 2);
2899 if (!isTruncatedShiftCountForLEA(ShAmt)) return nullptr;
2901 unsigned Opc = is64Bit ? X86::LEA64_32r : X86::LEA32r;
2903 // LEA can't handle ESP.
2904 bool isKill, isUndef;
2906 MachineOperand ImplicitOp = MachineOperand::CreateReg(0, false);
2907 if (!classifyLEAReg(MI, Src, Opc, /*AllowSP=*/ false,
2908 SrcReg, isKill, isUndef, ImplicitOp, LV))
2911 MachineInstrBuilder MIB =
2912 BuildMI(MF, MI.getDebugLoc(), get(Opc))
2915 .addImm(1ULL << ShAmt)
2916 .addReg(SrcReg, getKillRegState(isKill) | getUndefRegState(isUndef))
2919 if (ImplicitOp.getReg() != 0)
2920 MIB.addOperand(ImplicitOp);
2925 case X86::SHL16ri: {
2926 assert(MI.getNumOperands() >= 3 && "Unknown shift instruction!");
2927 unsigned ShAmt = getTruncatedShiftCount(MI, 2);
2928 if (!isTruncatedShiftCountForLEA(ShAmt)) return nullptr;
2931 return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MI, LV)
2933 NewMI = BuildMI(MF, MI.getDebugLoc(), get(X86::LEA16r))
2936 .addImm(1ULL << ShAmt)
2944 assert(MI.getNumOperands() >= 2 && "Unknown inc instruction!");
2945 unsigned Opc = MIOpc == X86::INC64r ? X86::LEA64r
2946 : (is64Bit ? X86::LEA64_32r : X86::LEA32r);
2947 bool isKill, isUndef;
2949 MachineOperand ImplicitOp = MachineOperand::CreateReg(0, false);
2950 if (!classifyLEAReg(MI, Src, Opc, /*AllowSP=*/ false,
2951 SrcReg, isKill, isUndef, ImplicitOp, LV))
2954 MachineInstrBuilder MIB =
2955 BuildMI(MF, MI.getDebugLoc(), get(Opc))
2958 getKillRegState(isKill) | getUndefRegState(isUndef));
2959 if (ImplicitOp.getReg() != 0)
2960 MIB.addOperand(ImplicitOp);
2962 NewMI = addOffset(MIB, 1);
2967 return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MI, LV)
2969 assert(MI.getNumOperands() >= 2 && "Unknown inc instruction!");
2970 NewMI = addOffset(BuildMI(MF, MI.getDebugLoc(), get(X86::LEA16r))
2977 assert(MI.getNumOperands() >= 2 && "Unknown dec instruction!");
2978 unsigned Opc = MIOpc == X86::DEC64r ? X86::LEA64r
2979 : (is64Bit ? X86::LEA64_32r : X86::LEA32r);
2981 bool isKill, isUndef;
2983 MachineOperand ImplicitOp = MachineOperand::CreateReg(0, false);
2984 if (!classifyLEAReg(MI, Src, Opc, /*AllowSP=*/ false,
2985 SrcReg, isKill, isUndef, ImplicitOp, LV))
2988 MachineInstrBuilder MIB = BuildMI(MF, MI.getDebugLoc(), get(Opc))
2990 .addReg(SrcReg, getUndefRegState(isUndef) |
2991 getKillRegState(isKill));
2992 if (ImplicitOp.getReg() != 0)
2993 MIB.addOperand(ImplicitOp);
2995 NewMI = addOffset(MIB, -1);
3001 return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MI, LV)
3003 assert(MI.getNumOperands() >= 2 && "Unknown dec instruction!");
3004 NewMI = addOffset(BuildMI(MF, MI.getDebugLoc(), get(X86::LEA16r))
3010 case X86::ADD64rr_DB:
3012 case X86::ADD32rr_DB: {
3013 assert(MI.getNumOperands() >= 3 && "Unknown add instruction!");
3015 if (MIOpc == X86::ADD64rr || MIOpc == X86::ADD64rr_DB)
3018 Opc = is64Bit ? X86::LEA64_32r : X86::LEA32r;
3020 bool isKill, isUndef;
3022 MachineOperand ImplicitOp = MachineOperand::CreateReg(0, false);
3023 if (!classifyLEAReg(MI, Src, Opc, /*AllowSP=*/ true,
3024 SrcReg, isKill, isUndef, ImplicitOp, LV))
3027 const MachineOperand &Src2 = MI.getOperand(2);
3028 bool isKill2, isUndef2;
3030 MachineOperand ImplicitOp2 = MachineOperand::CreateReg(0, false);
3031 if (!classifyLEAReg(MI, Src2, Opc, /*AllowSP=*/ false,
3032 SrcReg2, isKill2, isUndef2, ImplicitOp2, LV))
3035 MachineInstrBuilder MIB =
3036 BuildMI(MF, MI.getDebugLoc(), get(Opc)).addOperand(Dest);
3037 if (ImplicitOp.getReg() != 0)
3038 MIB.addOperand(ImplicitOp);
3039 if (ImplicitOp2.getReg() != 0)
3040 MIB.addOperand(ImplicitOp2);
3042 NewMI = addRegReg(MIB, SrcReg, isKill, SrcReg2, isKill2);
3044 // Preserve undefness of the operands.
3045 NewMI->getOperand(1).setIsUndef(isUndef);
3046 NewMI->getOperand(3).setIsUndef(isUndef2);
3048 if (LV && Src2.isKill())
3049 LV->replaceKillInstruction(SrcReg2, MI, *NewMI);
3053 case X86::ADD16rr_DB: {
3055 return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MI, LV)
3057 assert(MI.getNumOperands() >= 3 && "Unknown add instruction!");
3058 unsigned Src2 = MI.getOperand(2).getReg();
3059 bool isKill2 = MI.getOperand(2).isKill();
3061 BuildMI(MF, MI.getDebugLoc(), get(X86::LEA16r)).addOperand(Dest),
3062 Src.getReg(), Src.isKill(), Src2, isKill2);
3064 // Preserve undefness of the operands.
3065 bool isUndef = MI.getOperand(1).isUndef();
3066 bool isUndef2 = MI.getOperand(2).isUndef();
3067 NewMI->getOperand(1).setIsUndef(isUndef);
3068 NewMI->getOperand(3).setIsUndef(isUndef2);
3071 LV->replaceKillInstruction(Src2, MI, *NewMI);
3074 case X86::ADD64ri32:
3076 case X86::ADD64ri32_DB:
3077 case X86::ADD64ri8_DB:
3078 assert(MI.getNumOperands() >= 3 && "Unknown add instruction!");
3079 NewMI = addOffset(BuildMI(MF, MI.getDebugLoc(), get(X86::LEA64r))
3082 MI.getOperand(2).getImm());
3086 case X86::ADD32ri_DB:
3087 case X86::ADD32ri8_DB: {
3088 assert(MI.getNumOperands() >= 3 && "Unknown add instruction!");
3089 unsigned Opc = is64Bit ? X86::LEA64_32r : X86::LEA32r;
3091 bool isKill, isUndef;
3093 MachineOperand ImplicitOp = MachineOperand::CreateReg(0, false);
3094 if (!classifyLEAReg(MI, Src, Opc, /*AllowSP=*/ true,
3095 SrcReg, isKill, isUndef, ImplicitOp, LV))
3098 MachineInstrBuilder MIB = BuildMI(MF, MI.getDebugLoc(), get(Opc))
3100 .addReg(SrcReg, getUndefRegState(isUndef) |
3101 getKillRegState(isKill));
3102 if (ImplicitOp.getReg() != 0)
3103 MIB.addOperand(ImplicitOp);
3105 NewMI = addOffset(MIB, MI.getOperand(2).getImm());
3110 case X86::ADD16ri_DB:
3111 case X86::ADD16ri8_DB:
3113 return is64Bit ? convertToThreeAddressWithLEA(MIOpc, MFI, MI, LV)
3115 assert(MI.getNumOperands() >= 3 && "Unknown add instruction!");
3116 NewMI = addOffset(BuildMI(MF, MI.getDebugLoc(), get(X86::LEA16r))
3119 MI.getOperand(2).getImm());
3123 if (!NewMI) return nullptr;
3125 if (LV) { // Update live variables
3127 LV->replaceKillInstruction(Src.getReg(), MI, *NewMI);
3129 LV->replaceKillInstruction(Dest.getReg(), MI, *NewMI);
3132 MFI->insert(MI.getIterator(), NewMI); // Insert the new inst
3136 /// Returns true if the given instruction opcode is FMA3.
3137 /// Otherwise, returns false.
3138 /// The second parameter is optional and is used as the second return from
3139 /// the function. It is set to true if the given instruction has FMA3 opcode
3140 /// that is used for lowering of scalar FMA intrinsics, and it is set to false
3142 static bool isFMA3(unsigned Opcode, bool *IsIntrinsic = nullptr) {
3144 *IsIntrinsic = false;
3147 case X86::VFMADDSDr132r: case X86::VFMADDSDr132m:
3148 case X86::VFMADDSSr132r: case X86::VFMADDSSr132m:
3149 case X86::VFMSUBSDr132r: case X86::VFMSUBSDr132m:
3150 case X86::VFMSUBSSr132r: case X86::VFMSUBSSr132m:
3151 case X86::VFNMADDSDr132r: case X86::VFNMADDSDr132m:
3152 case X86::VFNMADDSSr132r: case X86::VFNMADDSSr132m:
3153 case X86::VFNMSUBSDr132r: case X86::VFNMSUBSDr132m:
3154 case X86::VFNMSUBSSr132r: case X86::VFNMSUBSSr132m:
3156 case X86::VFMADDSDr213r: case X86::VFMADDSDr213m:
3157 case X86::VFMADDSSr213r: case X86::VFMADDSSr213m:
3158 case X86::VFMSUBSDr213r: case X86::VFMSUBSDr213m:
3159 case X86::VFMSUBSSr213r: case X86::VFMSUBSSr213m:
3160 case X86::VFNMADDSDr213r: case X86::VFNMADDSDr213m:
3161 case X86::VFNMADDSSr213r: case X86::VFNMADDSSr213m:
3162 case X86::VFNMSUBSDr213r: case X86::VFNMSUBSDr213m:
3163 case X86::VFNMSUBSSr213r: case X86::VFNMSUBSSr213m:
3165 case X86::VFMADDSDr231r: case X86::VFMADDSDr231m:
3166 case X86::VFMADDSSr231r: case X86::VFMADDSSr231m:
3167 case X86::VFMSUBSDr231r: case X86::VFMSUBSDr231m:
3168 case X86::VFMSUBSSr231r: case X86::VFMSUBSSr231m:
3169 case X86::VFNMADDSDr231r: case X86::VFNMADDSDr231m:
3170 case X86::VFNMADDSSr231r: case X86::VFNMADDSSr231m:
3171 case X86::VFNMSUBSDr231r: case X86::VFNMSUBSDr231m:
3172 case X86::VFNMSUBSSr231r: case X86::VFNMSUBSSr231m:
3174 case X86::VFMADDSUBPDr132r: case X86::VFMADDSUBPDr132m:
3175 case X86::VFMADDSUBPSr132r: case X86::VFMADDSUBPSr132m:
3176 case X86::VFMSUBADDPDr132r: case X86::VFMSUBADDPDr132m:
3177 case X86::VFMSUBADDPSr132r: case X86::VFMSUBADDPSr132m:
3178 case X86::VFMADDSUBPDr132rY: case X86::VFMADDSUBPDr132mY:
3179 case X86::VFMADDSUBPSr132rY: case X86::VFMADDSUBPSr132mY:
3180 case X86::VFMSUBADDPDr132rY: case X86::VFMSUBADDPDr132mY:
3181 case X86::VFMSUBADDPSr132rY: case X86::VFMSUBADDPSr132mY:
3183 case X86::VFMADDPDr132r: case X86::VFMADDPDr132m:
3184 case X86::VFMADDPSr132r: case X86::VFMADDPSr132m:
3185 case X86::VFMSUBPDr132r: case X86::VFMSUBPDr132m:
3186 case X86::VFMSUBPSr132r: case X86::VFMSUBPSr132m:
3187 case X86::VFNMADDPDr132r: case X86::VFNMADDPDr132m:
3188 case X86::VFNMADDPSr132r: case X86::VFNMADDPSr132m:
3189 case X86::VFNMSUBPDr132r: case X86::VFNMSUBPDr132m:
3190 case X86::VFNMSUBPSr132r: case X86::VFNMSUBPSr132m:
3191 case X86::VFMADDPDr132rY: case X86::VFMADDPDr132mY:
3192 case X86::VFMADDPSr132rY: case X86::VFMADDPSr132mY:
3193 case X86::VFMSUBPDr132rY: case X86::VFMSUBPDr132mY:
3194 case X86::VFMSUBPSr132rY: case X86::VFMSUBPSr132mY:
3195 case X86::VFNMADDPDr132rY: case X86::VFNMADDPDr132mY:
3196 case X86::VFNMADDPSr132rY: case X86::VFNMADDPSr132mY:
3197 case X86::VFNMSUBPDr132rY: case X86::VFNMSUBPDr132mY:
3198 case X86::VFNMSUBPSr132rY: case X86::VFNMSUBPSr132mY:
3200 case X86::VFMADDSUBPDr213r: case X86::VFMADDSUBPDr213m:
3201 case X86::VFMADDSUBPSr213r: case X86::VFMADDSUBPSr213m:
3202 case X86::VFMSUBADDPDr213r: case X86::VFMSUBADDPDr213m:
3203 case X86::VFMSUBADDPSr213r: case X86::VFMSUBADDPSr213m:
3204 case X86::VFMADDSUBPDr213rY: case X86::VFMADDSUBPDr213mY:
3205 case X86::VFMADDSUBPSr213rY: case X86::VFMADDSUBPSr213mY:
3206 case X86::VFMSUBADDPDr213rY: case X86::VFMSUBADDPDr213mY:
3207 case X86::VFMSUBADDPSr213rY: case X86::VFMSUBADDPSr213mY:
3209 case X86::VFMADDPDr213r: case X86::VFMADDPDr213m:
3210 case X86::VFMADDPSr213r: case X86::VFMADDPSr213m:
3211 case X86::VFMSUBPDr213r: case X86::VFMSUBPDr213m:
3212 case X86::VFMSUBPSr213r: case X86::VFMSUBPSr213m:
3213 case X86::VFNMADDPDr213r: case X86::VFNMADDPDr213m:
3214 case X86::VFNMADDPSr213r: case X86::VFNMADDPSr213m:
3215 case X86::VFNMSUBPDr213r: case X86::VFNMSUBPDr213m:
3216 case X86::VFNMSUBPSr213r: case X86::VFNMSUBPSr213m:
3217 case X86::VFMADDPDr213rY: case X86::VFMADDPDr213mY:
3218 case X86::VFMADDPSr213rY: case X86::VFMADDPSr213mY:
3219 case X86::VFMSUBPDr213rY: case X86::VFMSUBPDr213mY:
3220 case X86::VFMSUBPSr213rY: case X86::VFMSUBPSr213mY:
3221 case X86::VFNMADDPDr213rY: case X86::VFNMADDPDr213mY:
3222 case X86::VFNMADDPSr213rY: case X86::VFNMADDPSr213mY:
3223 case X86::VFNMSUBPDr213rY: case X86::VFNMSUBPDr213mY:
3224 case X86::VFNMSUBPSr213rY: case X86::VFNMSUBPSr213mY:
3226 case X86::VFMADDSUBPDr231r: case X86::VFMADDSUBPDr231m:
3227 case X86::VFMADDSUBPSr231r: case X86::VFMADDSUBPSr231m:
3228 case X86::VFMSUBADDPDr231r: case X86::VFMSUBADDPDr231m:
3229 case X86::VFMSUBADDPSr231r: case X86::VFMSUBADDPSr231m:
3230 case X86::VFMADDSUBPDr231rY: case X86::VFMADDSUBPDr231mY:
3231 case X86::VFMADDSUBPSr231rY: case X86::VFMADDSUBPSr231mY:
3232 case X86::VFMSUBADDPDr231rY: case X86::VFMSUBADDPDr231mY:
3233 case X86::VFMSUBADDPSr231rY: case X86::VFMSUBADDPSr231mY:
3235 case X86::VFMADDPDr231r: case X86::VFMADDPDr231m:
3236 case X86::VFMADDPSr231r: case X86::VFMADDPSr231m:
3237 case X86::VFMSUBPDr231r: case X86::VFMSUBPDr231m:
3238 case X86::VFMSUBPSr231r: case X86::VFMSUBPSr231m:
3239 case X86::VFNMADDPDr231r: case X86::VFNMADDPDr231m:
3240 case X86::VFNMADDPSr231r: case X86::VFNMADDPSr231m:
3241 case X86::VFNMSUBPDr231r: case X86::VFNMSUBPDr231m:
3242 case X86::VFNMSUBPSr231r: case X86::VFNMSUBPSr231m:
3243 case X86::VFMADDPDr231rY: case X86::VFMADDPDr231mY:
3244 case X86::VFMADDPSr231rY: case X86::VFMADDPSr231mY:
3245 case X86::VFMSUBPDr231rY: case X86::VFMSUBPDr231mY:
3246 case X86::VFMSUBPSr231rY: case X86::VFMSUBPSr231mY:
3247 case X86::VFNMADDPDr231rY: case X86::VFNMADDPDr231mY:
3248 case X86::VFNMADDPSr231rY: case X86::VFNMADDPSr231mY:
3249 case X86::VFNMSUBPDr231rY: case X86::VFNMSUBPDr231mY:
3250 case X86::VFNMSUBPSr231rY: case X86::VFNMSUBPSr231mY:
3253 case X86::VFMADDSDr132r_Int: case X86::VFMADDSDr132m_Int:
3254 case X86::VFMADDSSr132r_Int: case X86::VFMADDSSr132m_Int:
3255 case X86::VFMSUBSDr132r_Int: case X86::VFMSUBSDr132m_Int:
3256 case X86::VFMSUBSSr132r_Int: case X86::VFMSUBSSr132m_Int:
3257 case X86::VFNMADDSDr132r_Int: case X86::VFNMADDSDr132m_Int:
3258 case X86::VFNMADDSSr132r_Int: case X86::VFNMADDSSr132m_Int:
3259 case X86::VFNMSUBSDr132r_Int: case X86::VFNMSUBSDr132m_Int:
3260 case X86::VFNMSUBSSr132r_Int: case X86::VFNMSUBSSr132m_Int:
3262 case X86::VFMADDSDr213r_Int: case X86::VFMADDSDr213m_Int:
3263 case X86::VFMADDSSr213r_Int: case X86::VFMADDSSr213m_Int:
3264 case X86::VFMSUBSDr213r_Int: case X86::VFMSUBSDr213m_Int:
3265 case X86::VFMSUBSSr213r_Int: case X86::VFMSUBSSr213m_Int:
3266 case X86::VFNMADDSDr213r_Int: case X86::VFNMADDSDr213m_Int:
3267 case X86::VFNMADDSSr213r_Int: case X86::VFNMADDSSr213m_Int:
3268 case X86::VFNMSUBSDr213r_Int: case X86::VFNMSUBSDr213m_Int:
3269 case X86::VFNMSUBSSr213r_Int: case X86::VFNMSUBSSr213m_Int:
3271 case X86::VFMADDSDr231r_Int: case X86::VFMADDSDr231m_Int:
3272 case X86::VFMADDSSr231r_Int: case X86::VFMADDSSr231m_Int:
3273 case X86::VFMSUBSDr231r_Int: case X86::VFMSUBSDr231m_Int:
3274 case X86::VFMSUBSSr231r_Int: case X86::VFMSUBSSr231m_Int:
3275 case X86::VFNMADDSDr231r_Int: case X86::VFNMADDSDr231m_Int:
3276 case X86::VFNMADDSSr231r_Int: case X86::VFNMADDSSr231m_Int:
3277 case X86::VFNMSUBSDr231r_Int: case X86::VFNMSUBSDr231m_Int:
3278 case X86::VFNMSUBSSr231r_Int: case X86::VFNMSUBSSr231m_Int:
3280 *IsIntrinsic = true;
3285 llvm_unreachable("Opcode not handled by the switch");
3288 MachineInstr *X86InstrInfo::commuteInstructionImpl(MachineInstr &MI, bool NewMI,
3290 unsigned OpIdx2) const {
3291 auto cloneIfNew = [NewMI](MachineInstr &MI) -> MachineInstr & {
3293 return *MI.getParent()->getParent()->CloneMachineInstr(&MI);
3297 switch (MI.getOpcode()) {
3298 case X86::SHRD16rri8: // A = SHRD16rri8 B, C, I -> A = SHLD16rri8 C, B, (16-I)
3299 case X86::SHLD16rri8: // A = SHLD16rri8 B, C, I -> A = SHRD16rri8 C, B, (16-I)
3300 case X86::SHRD32rri8: // A = SHRD32rri8 B, C, I -> A = SHLD32rri8 C, B, (32-I)
3301 case X86::SHLD32rri8: // A = SHLD32rri8 B, C, I -> A = SHRD32rri8 C, B, (32-I)
3302 case X86::SHRD64rri8: // A = SHRD64rri8 B, C, I -> A = SHLD64rri8 C, B, (64-I)
3303 case X86::SHLD64rri8:{// A = SHLD64rri8 B, C, I -> A = SHRD64rri8 C, B, (64-I)
3306 switch (MI.getOpcode()) {
3307 default: llvm_unreachable("Unreachable!");
3308 case X86::SHRD16rri8: Size = 16; Opc = X86::SHLD16rri8; break;
3309 case X86::SHLD16rri8: Size = 16; Opc = X86::SHRD16rri8; break;
3310 case X86::SHRD32rri8: Size = 32; Opc = X86::SHLD32rri8; break;
3311 case X86::SHLD32rri8: Size = 32; Opc = X86::SHRD32rri8; break;
3312 case X86::SHRD64rri8: Size = 64; Opc = X86::SHLD64rri8; break;
3313 case X86::SHLD64rri8: Size = 64; Opc = X86::SHRD64rri8; break;
3315 unsigned Amt = MI.getOperand(3).getImm();
3316 auto &WorkingMI = cloneIfNew(MI);
3317 WorkingMI.setDesc(get(Opc));
3318 WorkingMI.getOperand(3).setImm(Size - Amt);
3319 return TargetInstrInfo::commuteInstructionImpl(WorkingMI, /*NewMI=*/false,
3322 case X86::BLENDPDrri:
3323 case X86::BLENDPSrri:
3324 case X86::PBLENDWrri:
3325 case X86::VBLENDPDrri:
3326 case X86::VBLENDPSrri:
3327 case X86::VBLENDPDYrri:
3328 case X86::VBLENDPSYrri:
3329 case X86::VPBLENDDrri:
3330 case X86::VPBLENDWrri:
3331 case X86::VPBLENDDYrri:
3332 case X86::VPBLENDWYrri:{
3334 switch (MI.getOpcode()) {
3335 default: llvm_unreachable("Unreachable!");
3336 case X86::BLENDPDrri: Mask = 0x03; break;
3337 case X86::BLENDPSrri: Mask = 0x0F; break;
3338 case X86::PBLENDWrri: Mask = 0xFF; break;
3339 case X86::VBLENDPDrri: Mask = 0x03; break;
3340 case X86::VBLENDPSrri: Mask = 0x0F; break;
3341 case X86::VBLENDPDYrri: Mask = 0x0F; break;
3342 case X86::VBLENDPSYrri: Mask = 0xFF; break;
3343 case X86::VPBLENDDrri: Mask = 0x0F; break;
3344 case X86::VPBLENDWrri: Mask = 0xFF; break;
3345 case X86::VPBLENDDYrri: Mask = 0xFF; break;
3346 case X86::VPBLENDWYrri: Mask = 0xFF; break;
3348 // Only the least significant bits of Imm are used.
3349 unsigned Imm = MI.getOperand(3).getImm() & Mask;
3350 auto &WorkingMI = cloneIfNew(MI);
3351 WorkingMI.getOperand(3).setImm(Mask ^ Imm);
3352 return TargetInstrInfo::commuteInstructionImpl(WorkingMI, /*NewMI=*/false,
3355 case X86::PCLMULQDQrr:
3356 case X86::VPCLMULQDQrr:{
3357 // SRC1 64bits = Imm[0] ? SRC1[127:64] : SRC1[63:0]
3358 // SRC2 64bits = Imm[4] ? SRC2[127:64] : SRC2[63:0]
3359 unsigned Imm = MI.getOperand(3).getImm();
3360 unsigned Src1Hi = Imm & 0x01;
3361 unsigned Src2Hi = Imm & 0x10;
3362 auto &WorkingMI = cloneIfNew(MI);
3363 WorkingMI.getOperand(3).setImm((Src1Hi << 4) | (Src2Hi >> 4));
3364 return TargetInstrInfo::commuteInstructionImpl(WorkingMI, /*NewMI=*/false,
3369 case X86::VCMPPDrri:
3370 case X86::VCMPPSrri:
3371 case X86::VCMPPDYrri:
3372 case X86::VCMPPSYrri: {
3373 // Float comparison can be safely commuted for
3374 // Ordered/Unordered/Equal/NotEqual tests
3375 unsigned Imm = MI.getOperand(3).getImm() & 0x7;
3378 case 0x03: // UNORDERED
3379 case 0x04: // NOT EQUAL
3380 case 0x07: // ORDERED
3381 return TargetInstrInfo::commuteInstructionImpl(MI, NewMI, OpIdx1, OpIdx2);
3386 case X86::VPCOMBri: case X86::VPCOMUBri:
3387 case X86::VPCOMDri: case X86::VPCOMUDri:
3388 case X86::VPCOMQri: case X86::VPCOMUQri:
3389 case X86::VPCOMWri: case X86::VPCOMUWri: {
3390 // Flip comparison mode immediate (if necessary).
3391 unsigned Imm = MI.getOperand(3).getImm() & 0x7;
3393 case 0x00: Imm = 0x02; break; // LT -> GT
3394 case 0x01: Imm = 0x03; break; // LE -> GE
3395 case 0x02: Imm = 0x00; break; // GT -> LT
3396 case 0x03: Imm = 0x01; break; // GE -> LE
3404 auto &WorkingMI = cloneIfNew(MI);
3405 WorkingMI.getOperand(3).setImm(Imm);
3406 return TargetInstrInfo::commuteInstructionImpl(WorkingMI, /*NewMI=*/false,
3409 case X86::VPERM2F128rr:
3410 case X86::VPERM2I128rr: {
3411 // Flip permute source immediate.
3412 // Imm & 0x02: lo = if set, select Op1.lo/hi else Op0.lo/hi.
3413 // Imm & 0x20: hi = if set, select Op1.lo/hi else Op0.lo/hi.
3414 unsigned Imm = MI.getOperand(3).getImm() & 0xFF;
3415 auto &WorkingMI = cloneIfNew(MI);
3416 WorkingMI.getOperand(3).setImm(Imm ^ 0x22);
3417 return TargetInstrInfo::commuteInstructionImpl(WorkingMI, /*NewMI=*/false,
3420 case X86::CMOVB16rr: case X86::CMOVB32rr: case X86::CMOVB64rr:
3421 case X86::CMOVAE16rr: case X86::CMOVAE32rr: case X86::CMOVAE64rr:
3422 case X86::CMOVE16rr: case X86::CMOVE32rr: case X86::CMOVE64rr:
3423 case X86::CMOVNE16rr: case X86::CMOVNE32rr: case X86::CMOVNE64rr:
3424 case X86::CMOVBE16rr: case X86::CMOVBE32rr: case X86::CMOVBE64rr:
3425 case X86::CMOVA16rr: case X86::CMOVA32rr: case X86::CMOVA64rr:
3426 case X86::CMOVL16rr: case X86::CMOVL32rr: case X86::CMOVL64rr:
3427 case X86::CMOVGE16rr: case X86::CMOVGE32rr: case X86::CMOVGE64rr:
3428 case X86::CMOVLE16rr: case X86::CMOVLE32rr: case X86::CMOVLE64rr:
3429 case X86::CMOVG16rr: case X86::CMOVG32rr: case X86::CMOVG64rr:
3430 case X86::CMOVS16rr: case X86::CMOVS32rr: case X86::CMOVS64rr:
3431 case X86::CMOVNS16rr: case X86::CMOVNS32rr: case X86::CMOVNS64rr:
3432 case X86::CMOVP16rr: case X86::CMOVP32rr: case X86::CMOVP64rr:
3433 case X86::CMOVNP16rr: case X86::CMOVNP32rr: case X86::CMOVNP64rr:
3434 case X86::CMOVO16rr: case X86::CMOVO32rr: case X86::CMOVO64rr:
3435 case X86::CMOVNO16rr: case X86::CMOVNO32rr: case X86::CMOVNO64rr: {
3437 switch (MI.getOpcode()) {
3438 default: llvm_unreachable("Unreachable!");
3439 case X86::CMOVB16rr: Opc = X86::CMOVAE16rr; break;
3440 case X86::CMOVB32rr: Opc = X86::CMOVAE32rr; break;
3441 case X86::CMOVB64rr: Opc = X86::CMOVAE64rr; break;
3442 case X86::CMOVAE16rr: Opc = X86::CMOVB16rr; break;
3443 case X86::CMOVAE32rr: Opc = X86::CMOVB32rr; break;
3444 case X86::CMOVAE64rr: Opc = X86::CMOVB64rr; break;
3445 case X86::CMOVE16rr: Opc = X86::CMOVNE16rr; break;
3446 case X86::CMOVE32rr: Opc = X86::CMOVNE32rr; break;
3447 case X86::CMOVE64rr: Opc = X86::CMOVNE64rr; break;
3448 case X86::CMOVNE16rr: Opc = X86::CMOVE16rr; break;
3449 case X86::CMOVNE32rr: Opc = X86::CMOVE32rr; break;
3450 case X86::CMOVNE64rr: Opc = X86::CMOVE64rr; break;
3451 case X86::CMOVBE16rr: Opc = X86::CMOVA16rr; break;
3452 case X86::CMOVBE32rr: Opc = X86::CMOVA32rr; break;
3453 case X86::CMOVBE64rr: Opc = X86::CMOVA64rr; break;
3454 case X86::CMOVA16rr: Opc = X86::CMOVBE16rr; break;
3455 case X86::CMOVA32rr: Opc = X86::CMOVBE32rr; break;
3456 case X86::CMOVA64rr: Opc = X86::CMOVBE64rr; break;
3457 case X86::CMOVL16rr: Opc = X86::CMOVGE16rr; break;
3458 case X86::CMOVL32rr: Opc = X86::CMOVGE32rr; break;
3459 case X86::CMOVL64rr: Opc = X86::CMOVGE64rr; break;
3460 case X86::CMOVGE16rr: Opc = X86::CMOVL16rr; break;
3461 case X86::CMOVGE32rr: Opc = X86::CMOVL32rr; break;
3462 case X86::CMOVGE64rr: Opc = X86::CMOVL64rr; break;
3463 case X86::CMOVLE16rr: Opc = X86::CMOVG16rr; break;
3464 case X86::CMOVLE32rr: Opc = X86::CMOVG32rr; break;
3465 case X86::CMOVLE64rr: Opc = X86::CMOVG64rr; break;
3466 case X86::CMOVG16rr: Opc = X86::CMOVLE16rr; break;
3467 case X86::CMOVG32rr: Opc = X86::CMOVLE32rr; break;
3468 case X86::CMOVG64rr: Opc = X86::CMOVLE64rr; break;
3469 case X86::CMOVS16rr: Opc = X86::CMOVNS16rr; break;
3470 case X86::CMOVS32rr: Opc = X86::CMOVNS32rr; break;
3471 case X86::CMOVS64rr: Opc = X86::CMOVNS64rr; break;
3472 case X86::CMOVNS16rr: Opc = X86::CMOVS16rr; break;
3473 case X86::CMOVNS32rr: Opc = X86::CMOVS32rr; break;
3474 case X86::CMOVNS64rr: Opc = X86::CMOVS64rr; break;
3475 case X86::CMOVP16rr: Opc = X86::CMOVNP16rr; break;
3476 case X86::CMOVP32rr: Opc = X86::CMOVNP32rr; break;
3477 case X86::CMOVP64rr: Opc = X86::CMOVNP64rr; break;
3478 case X86::CMOVNP16rr: Opc = X86::CMOVP16rr; break;
3479 case X86::CMOVNP32rr: Opc = X86::CMOVP32rr; break;
3480 case X86::CMOVNP64rr: Opc = X86::CMOVP64rr; break;
3481 case X86::CMOVO16rr: Opc = X86::CMOVNO16rr; break;
3482 case X86::CMOVO32rr: Opc = X86::CMOVNO32rr; break;
3483 case X86::CMOVO64rr: Opc = X86::CMOVNO64rr; break;
3484 case X86::CMOVNO16rr: Opc = X86::CMOVO16rr; break;
3485 case X86::CMOVNO32rr: Opc = X86::CMOVO32rr; break;
3486 case X86::CMOVNO64rr: Opc = X86::CMOVO64rr; break;
3488 auto &WorkingMI = cloneIfNew(MI);
3489 WorkingMI.setDesc(get(Opc));
3490 return TargetInstrInfo::commuteInstructionImpl(WorkingMI, /*NewMI=*/false,
3494 if (isFMA3(MI.getOpcode())) {
3495 unsigned Opc = getFMA3OpcodeToCommuteOperands(MI, OpIdx1, OpIdx2);
3498 auto &WorkingMI = cloneIfNew(MI);
3499 WorkingMI.setDesc(get(Opc));
3500 return TargetInstrInfo::commuteInstructionImpl(WorkingMI, /*NewMI=*/false,
3504 return TargetInstrInfo::commuteInstructionImpl(MI, NewMI, OpIdx1, OpIdx2);
3508 bool X86InstrInfo::findFMA3CommutedOpIndices(MachineInstr &MI,
3509 unsigned &SrcOpIdx1,
3510 unsigned &SrcOpIdx2) const {
3512 unsigned RegOpsNum = isMem(MI, 3) ? 2 : 3;
3514 // Only the first RegOpsNum operands are commutable.
3515 // Also, the value 'CommuteAnyOperandIndex' is valid here as it means
3516 // that the operand is not specified/fixed.
3517 if (SrcOpIdx1 != CommuteAnyOperandIndex &&
3518 (SrcOpIdx1 < 1 || SrcOpIdx1 > RegOpsNum))
3520 if (SrcOpIdx2 != CommuteAnyOperandIndex &&
3521 (SrcOpIdx2 < 1 || SrcOpIdx2 > RegOpsNum))
3524 // Look for two different register operands assumed to be commutable
3525 // regardless of the FMA opcode. The FMA opcode is adjusted later.
3526 if (SrcOpIdx1 == CommuteAnyOperandIndex ||
3527 SrcOpIdx2 == CommuteAnyOperandIndex) {
3528 unsigned CommutableOpIdx1 = SrcOpIdx1;
3529 unsigned CommutableOpIdx2 = SrcOpIdx2;
3531 // At least one of operands to be commuted is not specified and
3532 // this method is free to choose appropriate commutable operands.
3533 if (SrcOpIdx1 == SrcOpIdx2)
3534 // Both of operands are not fixed. By default set one of commutable
3535 // operands to the last register operand of the instruction.
3536 CommutableOpIdx2 = RegOpsNum;
3537 else if (SrcOpIdx2 == CommuteAnyOperandIndex)
3538 // Only one of operands is not fixed.
3539 CommutableOpIdx2 = SrcOpIdx1;
3541 // CommutableOpIdx2 is well defined now. Let's choose another commutable
3542 // operand and assign its index to CommutableOpIdx1.
3543 unsigned Op2Reg = MI.getOperand(CommutableOpIdx2).getReg();
3544 for (CommutableOpIdx1 = RegOpsNum; CommutableOpIdx1 > 0; CommutableOpIdx1--) {
3545 // The commuted operands must have different registers.
3546 // Otherwise, the commute transformation does not change anything and
3548 if (Op2Reg != MI.getOperand(CommutableOpIdx1).getReg())
3552 // No appropriate commutable operands were found.
3553 if (CommutableOpIdx1 == 0)
3556 // Assign the found pair of commutable indices to SrcOpIdx1 and SrcOpidx2
3557 // to return those values.
3558 if (!fixCommutedOpIndices(SrcOpIdx1, SrcOpIdx2,
3559 CommutableOpIdx1, CommutableOpIdx2))
3563 // Check if we can adjust the opcode to preserve the semantics when
3564 // commute the register operands.
3565 return getFMA3OpcodeToCommuteOperands(MI, SrcOpIdx1, SrcOpIdx2) != 0;
3568 unsigned X86InstrInfo::getFMA3OpcodeToCommuteOperands(
3569 MachineInstr &MI, unsigned SrcOpIdx1, unsigned SrcOpIdx2) const {
3570 unsigned Opc = MI.getOpcode();
3572 // Define the array that holds FMA opcodes in groups
3573 // of 3 opcodes(132, 213, 231) in each group.
3574 static const uint16_t RegularOpcodeGroups[][3] = {
3575 { X86::VFMADDSSr132r, X86::VFMADDSSr213r, X86::VFMADDSSr231r },
3576 { X86::VFMADDSDr132r, X86::VFMADDSDr213r, X86::VFMADDSDr231r },
3577 { X86::VFMADDPSr132r, X86::VFMADDPSr213r, X86::VFMADDPSr231r },
3578 { X86::VFMADDPDr132r, X86::VFMADDPDr213r, X86::VFMADDPDr231r },
3579 { X86::VFMADDPSr132rY, X86::VFMADDPSr213rY, X86::VFMADDPSr231rY },
3580 { X86::VFMADDPDr132rY, X86::VFMADDPDr213rY, X86::VFMADDPDr231rY },
3581 { X86::VFMADDSSr132m, X86::VFMADDSSr213m, X86::VFMADDSSr231m },
3582 { X86::VFMADDSDr132m, X86::VFMADDSDr213m, X86::VFMADDSDr231m },
3583 { X86::VFMADDPSr132m, X86::VFMADDPSr213m, X86::VFMADDPSr231m },
3584 { X86::VFMADDPDr132m, X86::VFMADDPDr213m, X86::VFMADDPDr231m },
3585 { X86::VFMADDPSr132mY, X86::VFMADDPSr213mY, X86::VFMADDPSr231mY },
3586 { X86::VFMADDPDr132mY, X86::VFMADDPDr213mY, X86::VFMADDPDr231mY },
3588 { X86::VFMSUBSSr132r, X86::VFMSUBSSr213r, X86::VFMSUBSSr231r },
3589 { X86::VFMSUBSDr132r, X86::VFMSUBSDr213r, X86::VFMSUBSDr231r },
3590 { X86::VFMSUBPSr132r, X86::VFMSUBPSr213r, X86::VFMSUBPSr231r },
3591 { X86::VFMSUBPDr132r, X86::VFMSUBPDr213r, X86::VFMSUBPDr231r },
3592 { X86::VFMSUBPSr132rY, X86::VFMSUBPSr213rY, X86::VFMSUBPSr231rY },
3593 { X86::VFMSUBPDr132rY, X86::VFMSUBPDr213rY, X86::VFMSUBPDr231rY },
3594 { X86::VFMSUBSSr132m, X86::VFMSUBSSr213m, X86::VFMSUBSSr231m },
3595 { X86::VFMSUBSDr132m, X86::VFMSUBSDr213m, X86::VFMSUBSDr231m },
3596 { X86::VFMSUBPSr132m, X86::VFMSUBPSr213m, X86::VFMSUBPSr231m },
3597 { X86::VFMSUBPDr132m, X86::VFMSUBPDr213m, X86::VFMSUBPDr231m },
3598 { X86::VFMSUBPSr132mY, X86::VFMSUBPSr213mY, X86::VFMSUBPSr231mY },
3599 { X86::VFMSUBPDr132mY, X86::VFMSUBPDr213mY, X86::VFMSUBPDr231mY },
3601 { X86::VFNMADDSSr132r, X86::VFNMADDSSr213r, X86::VFNMADDSSr231r },
3602 { X86::VFNMADDSDr132r, X86::VFNMADDSDr213r, X86::VFNMADDSDr231r },
3603 { X86::VFNMADDPSr132r, X86::VFNMADDPSr213r, X86::VFNMADDPSr231r },
3604 { X86::VFNMADDPDr132r, X86::VFNMADDPDr213r, X86::VFNMADDPDr231r },
3605 { X86::VFNMADDPSr132rY, X86::VFNMADDPSr213rY, X86::VFNMADDPSr231rY },
3606 { X86::VFNMADDPDr132rY, X86::VFNMADDPDr213rY, X86::VFNMADDPDr231rY },
3607 { X86::VFNMADDSSr132m, X86::VFNMADDSSr213m, X86::VFNMADDSSr231m },
3608 { X86::VFNMADDSDr132m, X86::VFNMADDSDr213m, X86::VFNMADDSDr231m },
3609 { X86::VFNMADDPSr132m, X86::VFNMADDPSr213m, X86::VFNMADDPSr231m },
3610 { X86::VFNMADDPDr132m, X86::VFNMADDPDr213m, X86::VFNMADDPDr231m },
3611 { X86::VFNMADDPSr132mY, X86::VFNMADDPSr213mY, X86::VFNMADDPSr231mY },
3612 { X86::VFNMADDPDr132mY, X86::VFNMADDPDr213mY, X86::VFNMADDPDr231mY },
3614 { X86::VFNMSUBSSr132r, X86::VFNMSUBSSr213r, X86::VFNMSUBSSr231r },
3615 { X86::VFNMSUBSDr132r, X86::VFNMSUBSDr213r, X86::VFNMSUBSDr231r },
3616 { X86::VFNMSUBPSr132r, X86::VFNMSUBPSr213r, X86::VFNMSUBPSr231r },
3617 { X86::VFNMSUBPDr132r, X86::VFNMSUBPDr213r, X86::VFNMSUBPDr231r },
3618 { X86::VFNMSUBPSr132rY, X86::VFNMSUBPSr213rY, X86::VFNMSUBPSr231rY },
3619 { X86::VFNMSUBPDr132rY, X86::VFNMSUBPDr213rY, X86::VFNMSUBPDr231rY },
3620 { X86::VFNMSUBSSr132m, X86::VFNMSUBSSr213m, X86::VFNMSUBSSr231m },
3621 { X86::VFNMSUBSDr132m, X86::VFNMSUBSDr213m, X86::VFNMSUBSDr231m },
3622 { X86::VFNMSUBPSr132m, X86::VFNMSUBPSr213m, X86::VFNMSUBPSr231m },
3623 { X86::VFNMSUBPDr132m, X86::VFNMSUBPDr213m, X86::VFNMSUBPDr231m },
3624 { X86::VFNMSUBPSr132mY, X86::VFNMSUBPSr213mY, X86::VFNMSUBPSr231mY },
3625 { X86::VFNMSUBPDr132mY, X86::VFNMSUBPDr213mY, X86::VFNMSUBPDr231mY },
3627 { X86::VFMADDSUBPSr132r, X86::VFMADDSUBPSr213r, X86::VFMADDSUBPSr231r },
3628 { X86::VFMADDSUBPDr132r, X86::VFMADDSUBPDr213r, X86::VFMADDSUBPDr231r },
3629 { X86::VFMADDSUBPSr132rY, X86::VFMADDSUBPSr213rY, X86::VFMADDSUBPSr231rY },
3630 { X86::VFMADDSUBPDr132rY, X86::VFMADDSUBPDr213rY, X86::VFMADDSUBPDr231rY },
3631 { X86::VFMADDSUBPSr132m, X86::VFMADDSUBPSr213m, X86::VFMADDSUBPSr231m },
3632 { X86::VFMADDSUBPDr132m, X86::VFMADDSUBPDr213m, X86::VFMADDSUBPDr231m },
3633 { X86::VFMADDSUBPSr132mY, X86::VFMADDSUBPSr213mY, X86::VFMADDSUBPSr231mY },
3634 { X86::VFMADDSUBPDr132mY, X86::VFMADDSUBPDr213mY, X86::VFMADDSUBPDr231mY },
3636 { X86::VFMSUBADDPSr132r, X86::VFMSUBADDPSr213r, X86::VFMSUBADDPSr231r },
3637 { X86::VFMSUBADDPDr132r, X86::VFMSUBADDPDr213r, X86::VFMSUBADDPDr231r },
3638 { X86::VFMSUBADDPSr132rY, X86::VFMSUBADDPSr213rY, X86::VFMSUBADDPSr231rY },
3639 { X86::VFMSUBADDPDr132rY, X86::VFMSUBADDPDr213rY, X86::VFMSUBADDPDr231rY },
3640 { X86::VFMSUBADDPSr132m, X86::VFMSUBADDPSr213m, X86::VFMSUBADDPSr231m },
3641 { X86::VFMSUBADDPDr132m, X86::VFMSUBADDPDr213m, X86::VFMSUBADDPDr231m },
3642 { X86::VFMSUBADDPSr132mY, X86::VFMSUBADDPSr213mY, X86::VFMSUBADDPSr231mY },
3643 { X86::VFMSUBADDPDr132mY, X86::VFMSUBADDPDr213mY, X86::VFMSUBADDPDr231mY }
3646 // Define the array that holds FMA*_Int opcodes in groups
3647 // of 3 opcodes(132, 213, 231) in each group.
3648 static const uint16_t IntrinOpcodeGroups[][3] = {
3649 { X86::VFMADDSSr132r_Int, X86::VFMADDSSr213r_Int, X86::VFMADDSSr231r_Int },
3650 { X86::VFMADDSDr132r_Int, X86::VFMADDSDr213r_Int, X86::VFMADDSDr231r_Int },
3651 { X86::VFMADDSSr132m_Int, X86::VFMADDSSr213m_Int, X86::VFMADDSSr231m_Int },
3652 { X86::VFMADDSDr132m_Int, X86::VFMADDSDr213m_Int, X86::VFMADDSDr231m_Int },
3654 { X86::VFMSUBSSr132r_Int, X86::VFMSUBSSr213r_Int, X86::VFMSUBSSr231r_Int },
3655 { X86::VFMSUBSDr132r_Int, X86::VFMSUBSDr213r_Int, X86::VFMSUBSDr231r_Int },
3656 { X86::VFMSUBSSr132m_Int, X86::VFMSUBSSr213m_Int, X86::VFMSUBSSr231m_Int },
3657 { X86::VFMSUBSDr132m_Int, X86::VFMSUBSDr213m_Int, X86::VFMSUBSDr231m_Int },
3659 { X86::VFNMADDSSr132r_Int, X86::VFNMADDSSr213r_Int, X86::VFNMADDSSr231r_Int },
3660 { X86::VFNMADDSDr132r_Int, X86::VFNMADDSDr213r_Int, X86::VFNMADDSDr231r_Int },
3661 { X86::VFNMADDSSr132m_Int, X86::VFNMADDSSr213m_Int, X86::VFNMADDSSr231m_Int },
3662 { X86::VFNMADDSDr132m_Int, X86::VFNMADDSDr213m_Int, X86::VFNMADDSDr231m_Int },
3664 { X86::VFNMSUBSSr132r_Int, X86::VFNMSUBSSr213r_Int, X86::VFNMSUBSSr231r_Int },
3665 { X86::VFNMSUBSDr132r_Int, X86::VFNMSUBSDr213r_Int, X86::VFNMSUBSDr231r_Int },
3666 { X86::VFNMSUBSSr132m_Int, X86::VFNMSUBSSr213m_Int, X86::VFNMSUBSSr231m_Int },
3667 { X86::VFNMSUBSDr132m_Int, X86::VFNMSUBSDr213m_Int, X86::VFNMSUBSDr231m_Int },
3670 const unsigned Form132Index = 0;
3671 const unsigned Form213Index = 1;
3672 const unsigned Form231Index = 2;
3673 const unsigned FormsNum = 3;
3675 bool IsIntrinOpcode;
3676 isFMA3(Opc, &IsIntrinOpcode);
3679 const uint16_t (*OpcodeGroups)[3];
3680 if (IsIntrinOpcode) {
3681 GroupsNum = array_lengthof(IntrinOpcodeGroups);
3682 OpcodeGroups = IntrinOpcodeGroups;
3684 GroupsNum = array_lengthof(RegularOpcodeGroups);
3685 OpcodeGroups = RegularOpcodeGroups;
3688 const uint16_t *FoundOpcodesGroup = nullptr;
3691 // Look for the input opcode in the corresponding opcodes table.
3692 for (size_t GroupIndex = 0; GroupIndex < GroupsNum && !FoundOpcodesGroup;
3694 for (FormIndex = 0; FormIndex < FormsNum; ++FormIndex) {
3695 if (OpcodeGroups[GroupIndex][FormIndex] == Opc) {
3696 FoundOpcodesGroup = OpcodeGroups[GroupIndex];
3702 // The input opcode does not match with any of the opcodes from the tables.
3703 // The unsupported FMA opcode must be added to one of the two opcode groups
3705 assert(FoundOpcodesGroup != nullptr && "Unexpected FMA3 opcode");
3707 // Put the lowest index to SrcOpIdx1 to simplify the checks below.
3708 if (SrcOpIdx1 > SrcOpIdx2)
3709 std::swap(SrcOpIdx1, SrcOpIdx2);
3711 // TODO: Commuting the 1st operand of FMA*_Int requires some additional
3712 // analysis. The commute optimization is legal only if all users of FMA*_Int
3713 // use only the lowest element of the FMA*_Int instruction. Such analysis are
3714 // not implemented yet. So, just return 0 in that case.
3715 // When such analysis are available this place will be the right place for
3717 if (IsIntrinOpcode && SrcOpIdx1 == 1)
3721 if (SrcOpIdx1 == 1 && SrcOpIdx2 == 2)
3723 else if (SrcOpIdx1 == 1 && SrcOpIdx2 == 3)
3725 else if (SrcOpIdx1 == 2 && SrcOpIdx2 == 3)
3730 // Define the FMA forms mapping array that helps to map input FMA form
3731 // to output FMA form to preserve the operation semantics after
3732 // commuting the operands.
3733 static const unsigned FormMapping[][3] = {
3734 // 0: SrcOpIdx1 == 1 && SrcOpIdx2 == 2;
3735 // FMA132 A, C, b; ==> FMA231 C, A, b;
3736 // FMA213 B, A, c; ==> FMA213 A, B, c;
3737 // FMA231 C, A, b; ==> FMA132 A, C, b;
3738 { Form231Index, Form213Index, Form132Index },
3739 // 1: SrcOpIdx1 == 1 && SrcOpIdx2 == 3;
3740 // FMA132 A, c, B; ==> FMA132 B, c, A;
3741 // FMA213 B, a, C; ==> FMA231 C, a, B;
3742 // FMA231 C, a, B; ==> FMA213 B, a, C;
3743 { Form132Index, Form231Index, Form213Index },
3744 // 2: SrcOpIdx1 == 2 && SrcOpIdx2 == 3;
3745 // FMA132 a, C, B; ==> FMA213 a, B, C;
3746 // FMA213 b, A, C; ==> FMA132 b, C, A;
3747 // FMA231 c, A, B; ==> FMA231 c, B, A;
3748 { Form213Index, Form132Index, Form231Index }
3751 // Everything is ready, just adjust the FMA opcode and return it.
3752 FormIndex = FormMapping[Case][FormIndex];
3753 return FoundOpcodesGroup[FormIndex];
3756 bool X86InstrInfo::findCommutedOpIndices(MachineInstr &MI, unsigned &SrcOpIdx1,
3757 unsigned &SrcOpIdx2) const {
3758 switch (MI.getOpcode()) {
3761 case X86::VCMPPDrri:
3762 case X86::VCMPPSrri:
3763 case X86::VCMPPDYrri:
3764 case X86::VCMPPSYrri: {
3765 // Float comparison can be safely commuted for
3766 // Ordered/Unordered/Equal/NotEqual tests
3767 unsigned Imm = MI.getOperand(3).getImm() & 0x7;
3770 case 0x03: // UNORDERED
3771 case 0x04: // NOT EQUAL
3772 case 0x07: // ORDERED
3773 // The indices of the commutable operands are 1 and 2.
3774 // Assign them to the returned operand indices here.
3775 return fixCommutedOpIndices(SrcOpIdx1, SrcOpIdx2, 1, 2);
3780 if (isFMA3(MI.getOpcode()))
3781 return findFMA3CommutedOpIndices(MI, SrcOpIdx1, SrcOpIdx2);
3782 return TargetInstrInfo::findCommutedOpIndices(MI, SrcOpIdx1, SrcOpIdx2);
3787 static X86::CondCode getCondFromBranchOpc(unsigned BrOpc) {
3789 default: return X86::COND_INVALID;
3790 case X86::JE_1: return X86::COND_E;
3791 case X86::JNE_1: return X86::COND_NE;
3792 case X86::JL_1: return X86::COND_L;
3793 case X86::JLE_1: return X86::COND_LE;
3794 case X86::JG_1: return X86::COND_G;
3795 case X86::JGE_1: return X86::COND_GE;
3796 case X86::JB_1: return X86::COND_B;
3797 case X86::JBE_1: return X86::COND_BE;
3798 case X86::JA_1: return X86::COND_A;
3799 case X86::JAE_1: return X86::COND_AE;
3800 case X86::JS_1: return X86::COND_S;
3801 case X86::JNS_1: return X86::COND_NS;
3802 case X86::JP_1: return X86::COND_P;
3803 case X86::JNP_1: return X86::COND_NP;
3804 case X86::JO_1: return X86::COND_O;
3805 case X86::JNO_1: return X86::COND_NO;
3809 /// Return condition code of a SET opcode.
3810 static X86::CondCode getCondFromSETOpc(unsigned Opc) {
3812 default: return X86::COND_INVALID;
3813 case X86::SETAr: case X86::SETAm: return X86::COND_A;
3814 case X86::SETAEr: case X86::SETAEm: return X86::COND_AE;
3815 case X86::SETBr: case X86::SETBm: return X86::COND_B;
3816 case X86::SETBEr: case X86::SETBEm: return X86::COND_BE;
3817 case X86::SETEr: case X86::SETEm: return X86::COND_E;
3818 case X86::SETGr: case X86::SETGm: return X86::COND_G;
3819 case X86::SETGEr: case X86::SETGEm: return X86::COND_GE;
3820 case X86::SETLr: case X86::SETLm: return X86::COND_L;
3821 case X86::SETLEr: case X86::SETLEm: return X86::COND_LE;
3822 case X86::SETNEr: case X86::SETNEm: return X86::COND_NE;
3823 case X86::SETNOr: case X86::SETNOm: return X86::COND_NO;
3824 case X86::SETNPr: case X86::SETNPm: return X86::COND_NP;
3825 case X86::SETNSr: case X86::SETNSm: return X86::COND_NS;
3826 case X86::SETOr: case X86::SETOm: return X86::COND_O;
3827 case X86::SETPr: case X86::SETPm: return X86::COND_P;
3828 case X86::SETSr: case X86::SETSm: return X86::COND_S;
3832 /// Return condition code of a CMov opcode.
3833 X86::CondCode X86::getCondFromCMovOpc(unsigned Opc) {
3835 default: return X86::COND_INVALID;
3836 case X86::CMOVA16rm: case X86::CMOVA16rr: case X86::CMOVA32rm:
3837 case X86::CMOVA32rr: case X86::CMOVA64rm: case X86::CMOVA64rr:
3839 case X86::CMOVAE16rm: case X86::CMOVAE16rr: case X86::CMOVAE32rm:
3840 case X86::CMOVAE32rr: case X86::CMOVAE64rm: case X86::CMOVAE64rr:
3841 return X86::COND_AE;
3842 case X86::CMOVB16rm: case X86::CMOVB16rr: case X86::CMOVB32rm:
3843 case X86::CMOVB32rr: case X86::CMOVB64rm: case X86::CMOVB64rr:
3845 case X86::CMOVBE16rm: case X86::CMOVBE16rr: case X86::CMOVBE32rm:
3846 case X86::CMOVBE32rr: case X86::CMOVBE64rm: case X86::CMOVBE64rr:
3847 return X86::COND_BE;
3848 case X86::CMOVE16rm: case X86::CMOVE16rr: case X86::CMOVE32rm:
3849 case X86::CMOVE32rr: case X86::CMOVE64rm: case X86::CMOVE64rr:
3851 case X86::CMOVG16rm: case X86::CMOVG16rr: case X86::CMOVG32rm:
3852 case X86::CMOVG32rr: case X86::CMOVG64rm: case X86::CMOVG64rr:
3854 case X86::CMOVGE16rm: case X86::CMOVGE16rr: case X86::CMOVGE32rm:
3855 case X86::CMOVGE32rr: case X86::CMOVGE64rm: case X86::CMOVGE64rr:
3856 return X86::COND_GE;
3857 case X86::CMOVL16rm: case X86::CMOVL16rr: case X86::CMOVL32rm:
3858 case X86::CMOVL32rr: case X86::CMOVL64rm: case X86::CMOVL64rr:
3860 case X86::CMOVLE16rm: case X86::CMOVLE16rr: case X86::CMOVLE32rm:
3861 case X86::CMOVLE32rr: case X86::CMOVLE64rm: case X86::CMOVLE64rr:
3862 return X86::COND_LE;
3863 case X86::CMOVNE16rm: case X86::CMOVNE16rr: case X86::CMOVNE32rm:
3864 case X86::CMOVNE32rr: case X86::CMOVNE64rm: case X86::CMOVNE64rr:
3865 return X86::COND_NE;
3866 case X86::CMOVNO16rm: case X86::CMOVNO16rr: case X86::CMOVNO32rm:
3867 case X86::CMOVNO32rr: case X86::CMOVNO64rm: case X86::CMOVNO64rr:
3868 return X86::COND_NO;
3869 case X86::CMOVNP16rm: case X86::CMOVNP16rr: case X86::CMOVNP32rm:
3870 case X86::CMOVNP32rr: case X86::CMOVNP64rm: case X86::CMOVNP64rr:
3871 return X86::COND_NP;
3872 case X86::CMOVNS16rm: case X86::CMOVNS16rr: case X86::CMOVNS32rm:
3873 case X86::CMOVNS32rr: case X86::CMOVNS64rm: case X86::CMOVNS64rr:
3874 return X86::COND_NS;
3875 case X86::CMOVO16rm: case X86::CMOVO16rr: case X86::CMOVO32rm:
3876 case X86::CMOVO32rr: case X86::CMOVO64rm: case X86::CMOVO64rr:
3878 case X86::CMOVP16rm: case X86::CMOVP16rr: case X86::CMOVP32rm:
3879 case X86::CMOVP32rr: case X86::CMOVP64rm: case X86::CMOVP64rr:
3881 case X86::CMOVS16rm: case X86::CMOVS16rr: case X86::CMOVS32rm:
3882 case X86::CMOVS32rr: case X86::CMOVS64rm: case X86::CMOVS64rr:
3887 unsigned X86::GetCondBranchFromCond(X86::CondCode CC) {
3889 default: llvm_unreachable("Illegal condition code!");
3890 case X86::COND_E: return X86::JE_1;
3891 case X86::COND_NE: return X86::JNE_1;
3892 case X86::COND_L: return X86::JL_1;
3893 case X86::COND_LE: return X86::JLE_1;
3894 case X86::COND_G: return X86::JG_1;
3895 case X86::COND_GE: return X86::JGE_1;
3896 case X86::COND_B: return X86::JB_1;
3897 case X86::COND_BE: return X86::JBE_1;
3898 case X86::COND_A: return X86::JA_1;
3899 case X86::COND_AE: return X86::JAE_1;
3900 case X86::COND_S: return X86::JS_1;
3901 case X86::COND_NS: return X86::JNS_1;
3902 case X86::COND_P: return X86::JP_1;
3903 case X86::COND_NP: return X86::JNP_1;
3904 case X86::COND_O: return X86::JO_1;
3905 case X86::COND_NO: return X86::JNO_1;
3909 /// Return the inverse of the specified condition,
3910 /// e.g. turning COND_E to COND_NE.
3911 X86::CondCode X86::GetOppositeBranchCondition(X86::CondCode CC) {
3913 default: llvm_unreachable("Illegal condition code!");
3914 case X86::COND_E: return X86::COND_NE;
3915 case X86::COND_NE: return X86::COND_E;
3916 case X86::COND_L: return X86::COND_GE;
3917 case X86::COND_LE: return X86::COND_G;
3918 case X86::COND_G: return X86::COND_LE;
3919 case X86::COND_GE: return X86::COND_L;
3920 case X86::COND_B: return X86::COND_AE;
3921 case X86::COND_BE: return X86::COND_A;
3922 case X86::COND_A: return X86::COND_BE;
3923 case X86::COND_AE: return X86::COND_B;
3924 case X86::COND_S: return X86::COND_NS;
3925 case X86::COND_NS: return X86::COND_S;
3926 case X86::COND_P: return X86::COND_NP;
3927 case X86::COND_NP: return X86::COND_P;
3928 case X86::COND_O: return X86::COND_NO;
3929 case X86::COND_NO: return X86::COND_O;
3930 case X86::COND_NE_OR_P: return X86::COND_E_AND_NP;
3931 case X86::COND_E_AND_NP: return X86::COND_NE_OR_P;
3935 /// Assuming the flags are set by MI(a,b), return the condition code if we
3936 /// modify the instructions such that flags are set by MI(b,a).
3937 static X86::CondCode getSwappedCondition(X86::CondCode CC) {
3939 default: return X86::COND_INVALID;
3940 case X86::COND_E: return X86::COND_E;
3941 case X86::COND_NE: return X86::COND_NE;
3942 case X86::COND_L: return X86::COND_G;
3943 case X86::COND_LE: return X86::COND_GE;
3944 case X86::COND_G: return X86::COND_L;
3945 case X86::COND_GE: return X86::COND_LE;
3946 case X86::COND_B: return X86::COND_A;
3947 case X86::COND_BE: return X86::COND_AE;
3948 case X86::COND_A: return X86::COND_B;
3949 case X86::COND_AE: return X86::COND_BE;
3953 /// Return a set opcode for the given condition and
3954 /// whether it has memory operand.
3955 unsigned X86::getSETFromCond(CondCode CC, bool HasMemoryOperand) {
3956 static const uint16_t Opc[16][2] = {
3957 { X86::SETAr, X86::SETAm },
3958 { X86::SETAEr, X86::SETAEm },
3959 { X86::SETBr, X86::SETBm },
3960 { X86::SETBEr, X86::SETBEm },
3961 { X86::SETEr, X86::SETEm },
3962 { X86::SETGr, X86::SETGm },
3963 { X86::SETGEr, X86::SETGEm },
3964 { X86::SETLr, X86::SETLm },
3965 { X86::SETLEr, X86::SETLEm },
3966 { X86::SETNEr, X86::SETNEm },
3967 { X86::SETNOr, X86::SETNOm },
3968 { X86::SETNPr, X86::SETNPm },
3969 { X86::SETNSr, X86::SETNSm },
3970 { X86::SETOr, X86::SETOm },
3971 { X86::SETPr, X86::SETPm },
3972 { X86::SETSr, X86::SETSm }
3975 assert(CC <= LAST_VALID_COND && "Can only handle standard cond codes");
3976 return Opc[CC][HasMemoryOperand ? 1 : 0];
3979 /// Return a cmov opcode for the given condition,
3980 /// register size in bytes, and operand type.
3981 unsigned X86::getCMovFromCond(CondCode CC, unsigned RegBytes,
3982 bool HasMemoryOperand) {
3983 static const uint16_t Opc[32][3] = {
3984 { X86::CMOVA16rr, X86::CMOVA32rr, X86::CMOVA64rr },
3985 { X86::CMOVAE16rr, X86::CMOVAE32rr, X86::CMOVAE64rr },
3986 { X86::CMOVB16rr, X86::CMOVB32rr, X86::CMOVB64rr },
3987 { X86::CMOVBE16rr, X86::CMOVBE32rr, X86::CMOVBE64rr },
3988 { X86::CMOVE16rr, X86::CMOVE32rr, X86::CMOVE64rr },
3989 { X86::CMOVG16rr, X86::CMOVG32rr, X86::CMOVG64rr },
3990 { X86::CMOVGE16rr, X86::CMOVGE32rr, X86::CMOVGE64rr },
3991 { X86::CMOVL16rr, X86::CMOVL32rr, X86::CMOVL64rr },
3992 { X86::CMOVLE16rr, X86::CMOVLE32rr, X86::CMOVLE64rr },
3993 { X86::CMOVNE16rr, X86::CMOVNE32rr, X86::CMOVNE64rr },
3994 { X86::CMOVNO16rr, X86::CMOVNO32rr, X86::CMOVNO64rr },
3995 { X86::CMOVNP16rr, X86::CMOVNP32rr, X86::CMOVNP64rr },
3996 { X86::CMOVNS16rr, X86::CMOVNS32rr, X86::CMOVNS64rr },
3997 { X86::CMOVO16rr, X86::CMOVO32rr, X86::CMOVO64rr },
3998 { X86::CMOVP16rr, X86::CMOVP32rr, X86::CMOVP64rr },
3999 { X86::CMOVS16rr, X86::CMOVS32rr, X86::CMOVS64rr },
4000 { X86::CMOVA16rm, X86::CMOVA32rm, X86::CMOVA64rm },
4001 { X86::CMOVAE16rm, X86::CMOVAE32rm, X86::CMOVAE64rm },
4002 { X86::CMOVB16rm, X86::CMOVB32rm, X86::CMOVB64rm },
4003 { X86::CMOVBE16rm, X86::CMOVBE32rm, X86::CMOVBE64rm },
4004 { X86::CMOVE16rm, X86::CMOVE32rm, X86::CMOVE64rm },
4005 { X86::CMOVG16rm, X86::CMOVG32rm, X86::CMOVG64rm },
4006 { X86::CMOVGE16rm, X86::CMOVGE32rm, X86::CMOVGE64rm },
4007 { X86::CMOVL16rm, X86::CMOVL32rm, X86::CMOVL64rm },
4008 { X86::CMOVLE16rm, X86::CMOVLE32rm, X86::CMOVLE64rm },
4009 { X86::CMOVNE16rm, X86::CMOVNE32rm, X86::CMOVNE64rm },
4010 { X86::CMOVNO16rm, X86::CMOVNO32rm, X86::CMOVNO64rm },
4011 { X86::CMOVNP16rm, X86::CMOVNP32rm, X86::CMOVNP64rm },
4012 { X86::CMOVNS16rm, X86::CMOVNS32rm, X86::CMOVNS64rm },
4013 { X86::CMOVO16rm, X86::CMOVO32rm, X86::CMOVO64rm },
4014 { X86::CMOVP16rm, X86::CMOVP32rm, X86::CMOVP64rm },
4015 { X86::CMOVS16rm, X86::CMOVS32rm, X86::CMOVS64rm }
4018 assert(CC < 16 && "Can only handle standard cond codes");
4019 unsigned Idx = HasMemoryOperand ? 16+CC : CC;
4021 default: llvm_unreachable("Illegal register size!");
4022 case 2: return Opc[Idx][0];
4023 case 4: return Opc[Idx][1];
4024 case 8: return Opc[Idx][2];
4028 bool X86InstrInfo::isUnpredicatedTerminator(const MachineInstr &MI) const {
4029 if (!MI.isTerminator()) return false;
4031 // Conditional branch is a special case.
4032 if (MI.isBranch() && !MI.isBarrier())
4034 if (!MI.isPredicable())
4036 return !isPredicated(MI);
4039 // Given a MBB and its TBB, find the FBB which was a fallthrough MBB (it may
4040 // not be a fallthrough MBB now due to layout changes). Return nullptr if the
4041 // fallthrough MBB cannot be identified.
4042 static MachineBasicBlock *getFallThroughMBB(MachineBasicBlock *MBB,
4043 MachineBasicBlock *TBB) {
4044 // Look for non-EHPad successors other than TBB. If we find exactly one, it
4045 // is the fallthrough MBB. If we find zero, then TBB is both the target MBB
4046 // and fallthrough MBB. If we find more than one, we cannot identify the
4047 // fallthrough MBB and should return nullptr.
4048 MachineBasicBlock *FallthroughBB = nullptr;
4049 for (auto SI = MBB->succ_begin(), SE = MBB->succ_end(); SI != SE; ++SI) {
4050 if ((*SI)->isEHPad() || (*SI == TBB && FallthroughBB))
4052 // Return a nullptr if we found more than one fallthrough successor.
4053 if (FallthroughBB && FallthroughBB != TBB)
4055 FallthroughBB = *SI;
4057 return FallthroughBB;
4060 bool X86InstrInfo::AnalyzeBranchImpl(
4061 MachineBasicBlock &MBB, MachineBasicBlock *&TBB, MachineBasicBlock *&FBB,
4062 SmallVectorImpl<MachineOperand> &Cond,
4063 SmallVectorImpl<MachineInstr *> &CondBranches, bool AllowModify) const {
4065 // Start from the bottom of the block and work up, examining the
4066 // terminator instructions.
4067 MachineBasicBlock::iterator I = MBB.end();
4068 MachineBasicBlock::iterator UnCondBrIter = MBB.end();
4069 while (I != MBB.begin()) {
4071 if (I->isDebugValue())
4074 // Working from the bottom, when we see a non-terminator instruction, we're
4076 if (!isUnpredicatedTerminator(*I))
4079 // A terminator that isn't a branch can't easily be handled by this
4084 // Handle unconditional branches.
4085 if (I->getOpcode() == X86::JMP_1) {
4089 TBB = I->getOperand(0).getMBB();
4093 // If the block has any instructions after a JMP, delete them.
4094 while (std::next(I) != MBB.end())
4095 std::next(I)->eraseFromParent();
4100 // Delete the JMP if it's equivalent to a fall-through.
4101 if (MBB.isLayoutSuccessor(I->getOperand(0).getMBB())) {
4103 I->eraseFromParent();
4105 UnCondBrIter = MBB.end();
4109 // TBB is used to indicate the unconditional destination.
4110 TBB = I->getOperand(0).getMBB();
4114 // Handle conditional branches.
4115 X86::CondCode BranchCode = getCondFromBranchOpc(I->getOpcode());
4116 if (BranchCode == X86::COND_INVALID)
4117 return true; // Can't handle indirect branch.
4119 // Working from the bottom, handle the first conditional branch.
4121 MachineBasicBlock *TargetBB = I->getOperand(0).getMBB();
4122 if (AllowModify && UnCondBrIter != MBB.end() &&
4123 MBB.isLayoutSuccessor(TargetBB)) {
4124 // If we can modify the code and it ends in something like:
4132 // Then we can change this to:
4139 // Which is a bit more efficient.
4140 // We conditionally jump to the fall-through block.
4141 BranchCode = GetOppositeBranchCondition(BranchCode);
4142 unsigned JNCC = GetCondBranchFromCond(BranchCode);
4143 MachineBasicBlock::iterator OldInst = I;
4145 BuildMI(MBB, UnCondBrIter, MBB.findDebugLoc(I), get(JNCC))
4146 .addMBB(UnCondBrIter->getOperand(0).getMBB());
4147 BuildMI(MBB, UnCondBrIter, MBB.findDebugLoc(I), get(X86::JMP_1))
4150 OldInst->eraseFromParent();
4151 UnCondBrIter->eraseFromParent();
4153 // Restart the analysis.
4154 UnCondBrIter = MBB.end();
4160 TBB = I->getOperand(0).getMBB();
4161 Cond.push_back(MachineOperand::CreateImm(BranchCode));
4162 CondBranches.push_back(&*I);
4166 // Handle subsequent conditional branches. Only handle the case where all
4167 // conditional branches branch to the same destination and their condition
4168 // opcodes fit one of the special multi-branch idioms.
4169 assert(Cond.size() == 1);
4172 // If the conditions are the same, we can leave them alone.
4173 X86::CondCode OldBranchCode = (X86::CondCode)Cond[0].getImm();
4174 auto NewTBB = I->getOperand(0).getMBB();
4175 if (OldBranchCode == BranchCode && TBB == NewTBB)
4178 // If they differ, see if they fit one of the known patterns. Theoretically,
4179 // we could handle more patterns here, but we shouldn't expect to see them
4180 // if instruction selection has done a reasonable job.
4181 if (TBB == NewTBB &&
4182 ((OldBranchCode == X86::COND_P && BranchCode == X86::COND_NE) ||
4183 (OldBranchCode == X86::COND_NE && BranchCode == X86::COND_P))) {
4184 BranchCode = X86::COND_NE_OR_P;
4185 } else if ((OldBranchCode == X86::COND_NP && BranchCode == X86::COND_NE) ||
4186 (OldBranchCode == X86::COND_E && BranchCode == X86::COND_P)) {
4187 if (NewTBB != (FBB ? FBB : getFallThroughMBB(&MBB, TBB)))
4190 // X86::COND_E_AND_NP usually has two different branch destinations.
4198 // Here this condition branches to B2 only if NP && E. It has another
4207 // Similarly it branches to B2 only if E && NP. That is why this condition
4208 // is named with COND_E_AND_NP.
4209 BranchCode = X86::COND_E_AND_NP;
4213 // Update the MachineOperand.
4214 Cond[0].setImm(BranchCode);
4215 CondBranches.push_back(&*I);
4221 bool X86InstrInfo::analyzeBranch(MachineBasicBlock &MBB,
4222 MachineBasicBlock *&TBB,
4223 MachineBasicBlock *&FBB,
4224 SmallVectorImpl<MachineOperand> &Cond,
4225 bool AllowModify) const {
4226 SmallVector<MachineInstr *, 4> CondBranches;
4227 return AnalyzeBranchImpl(MBB, TBB, FBB, Cond, CondBranches, AllowModify);
4230 bool X86InstrInfo::analyzeBranchPredicate(MachineBasicBlock &MBB,
4231 MachineBranchPredicate &MBP,
4232 bool AllowModify) const {
4233 using namespace std::placeholders;
4235 SmallVector<MachineOperand, 4> Cond;
4236 SmallVector<MachineInstr *, 4> CondBranches;
4237 if (AnalyzeBranchImpl(MBB, MBP.TrueDest, MBP.FalseDest, Cond, CondBranches,
4241 if (Cond.size() != 1)
4244 assert(MBP.TrueDest && "expected!");
4247 MBP.FalseDest = MBB.getNextNode();
4249 const TargetRegisterInfo *TRI = &getRegisterInfo();
4251 MachineInstr *ConditionDef = nullptr;
4252 bool SingleUseCondition = true;
4254 for (auto I = std::next(MBB.rbegin()), E = MBB.rend(); I != E; ++I) {
4255 if (I->modifiesRegister(X86::EFLAGS, TRI)) {
4260 if (I->readsRegister(X86::EFLAGS, TRI))
4261 SingleUseCondition = false;
4267 if (SingleUseCondition) {
4268 for (auto *Succ : MBB.successors())
4269 if (Succ->isLiveIn(X86::EFLAGS))
4270 SingleUseCondition = false;
4273 MBP.ConditionDef = ConditionDef;
4274 MBP.SingleUseCondition = SingleUseCondition;
4276 // Currently we only recognize the simple pattern:
4281 const unsigned TestOpcode =
4282 Subtarget.is64Bit() ? X86::TEST64rr : X86::TEST32rr;
4284 if (ConditionDef->getOpcode() == TestOpcode &&
4285 ConditionDef->getNumOperands() == 3 &&
4286 ConditionDef->getOperand(0).isIdenticalTo(ConditionDef->getOperand(1)) &&
4287 (Cond[0].getImm() == X86::COND_NE || Cond[0].getImm() == X86::COND_E)) {
4288 MBP.LHS = ConditionDef->getOperand(0);
4289 MBP.RHS = MachineOperand::CreateImm(0);
4290 MBP.Predicate = Cond[0].getImm() == X86::COND_NE
4291 ? MachineBranchPredicate::PRED_NE
4292 : MachineBranchPredicate::PRED_EQ;
4299 unsigned X86InstrInfo::RemoveBranch(MachineBasicBlock &MBB) const {
4300 MachineBasicBlock::iterator I = MBB.end();
4303 while (I != MBB.begin()) {
4305 if (I->isDebugValue())
4307 if (I->getOpcode() != X86::JMP_1 &&
4308 getCondFromBranchOpc(I->getOpcode()) == X86::COND_INVALID)
4310 // Remove the branch.
4311 I->eraseFromParent();
4319 unsigned X86InstrInfo::InsertBranch(MachineBasicBlock &MBB,
4320 MachineBasicBlock *TBB,
4321 MachineBasicBlock *FBB,
4322 ArrayRef<MachineOperand> Cond,
4323 const DebugLoc &DL) const {
4324 // Shouldn't be a fall through.
4325 assert(TBB && "InsertBranch must not be told to insert a fallthrough");
4326 assert((Cond.size() == 1 || Cond.size() == 0) &&
4327 "X86 branch conditions have one component!");
4330 // Unconditional branch?
4331 assert(!FBB && "Unconditional branch with multiple successors!");
4332 BuildMI(&MBB, DL, get(X86::JMP_1)).addMBB(TBB);
4336 // If FBB is null, it is implied to be a fall-through block.
4337 bool FallThru = FBB == nullptr;
4339 // Conditional branch.
4341 X86::CondCode CC = (X86::CondCode)Cond[0].getImm();
4343 case X86::COND_NE_OR_P:
4344 // Synthesize NE_OR_P with two branches.
4345 BuildMI(&MBB, DL, get(X86::JNE_1)).addMBB(TBB);
4347 BuildMI(&MBB, DL, get(X86::JP_1)).addMBB(TBB);
4350 case X86::COND_E_AND_NP:
4351 // Use the next block of MBB as FBB if it is null.
4352 if (FBB == nullptr) {
4353 FBB = getFallThroughMBB(&MBB, TBB);
4354 assert(FBB && "MBB cannot be the last block in function when the false "
4355 "body is a fall-through.");
4357 // Synthesize COND_E_AND_NP with two branches.
4358 BuildMI(&MBB, DL, get(X86::JNE_1)).addMBB(FBB);
4360 BuildMI(&MBB, DL, get(X86::JNP_1)).addMBB(TBB);
4364 unsigned Opc = GetCondBranchFromCond(CC);
4365 BuildMI(&MBB, DL, get(Opc)).addMBB(TBB);
4370 // Two-way Conditional branch. Insert the second branch.
4371 BuildMI(&MBB, DL, get(X86::JMP_1)).addMBB(FBB);
4378 canInsertSelect(const MachineBasicBlock &MBB,
4379 ArrayRef<MachineOperand> Cond,
4380 unsigned TrueReg, unsigned FalseReg,
4381 int &CondCycles, int &TrueCycles, int &FalseCycles) const {
4382 // Not all subtargets have cmov instructions.
4383 if (!Subtarget.hasCMov())
4385 if (Cond.size() != 1)
4387 // We cannot do the composite conditions, at least not in SSA form.
4388 if ((X86::CondCode)Cond[0].getImm() > X86::COND_S)
4391 // Check register classes.
4392 const MachineRegisterInfo &MRI = MBB.getParent()->getRegInfo();
4393 const TargetRegisterClass *RC =
4394 RI.getCommonSubClass(MRI.getRegClass(TrueReg), MRI.getRegClass(FalseReg));
4398 // We have cmov instructions for 16, 32, and 64 bit general purpose registers.
4399 if (X86::GR16RegClass.hasSubClassEq(RC) ||
4400 X86::GR32RegClass.hasSubClassEq(RC) ||
4401 X86::GR64RegClass.hasSubClassEq(RC)) {
4402 // This latency applies to Pentium M, Merom, Wolfdale, Nehalem, and Sandy
4403 // Bridge. Probably Ivy Bridge as well.
4410 // Can't do vectors.
4414 void X86InstrInfo::insertSelect(MachineBasicBlock &MBB,
4415 MachineBasicBlock::iterator I,
4416 const DebugLoc &DL, unsigned DstReg,
4417 ArrayRef<MachineOperand> Cond, unsigned TrueReg,
4418 unsigned FalseReg) const {
4419 MachineRegisterInfo &MRI = MBB.getParent()->getRegInfo();
4420 assert(Cond.size() == 1 && "Invalid Cond array");
4421 unsigned Opc = getCMovFromCond((X86::CondCode)Cond[0].getImm(),
4422 MRI.getRegClass(DstReg)->getSize(),
4423 false /*HasMemoryOperand*/);
4424 BuildMI(MBB, I, DL, get(Opc), DstReg).addReg(FalseReg).addReg(TrueReg);
4427 /// Test if the given register is a physical h register.
4428 static bool isHReg(unsigned Reg) {
4429 return X86::GR8_ABCD_HRegClass.contains(Reg);
4432 // Try and copy between VR128/VR64 and GR64 registers.
4433 static unsigned CopyToFromAsymmetricReg(unsigned DestReg, unsigned SrcReg,
4434 const X86Subtarget &Subtarget) {
4436 // SrcReg(VR128) -> DestReg(GR64)
4437 // SrcReg(VR64) -> DestReg(GR64)
4438 // SrcReg(GR64) -> DestReg(VR128)
4439 // SrcReg(GR64) -> DestReg(VR64)
4441 bool HasAVX = Subtarget.hasAVX();
4442 bool HasAVX512 = Subtarget.hasAVX512();
4443 if (X86::GR64RegClass.contains(DestReg)) {
4444 if (X86::VR128XRegClass.contains(SrcReg))
4445 // Copy from a VR128 register to a GR64 register.
4446 return HasAVX512 ? X86::VMOVPQIto64Zrr :
4447 HasAVX ? X86::VMOVPQIto64rr :
4449 if (X86::VR64RegClass.contains(SrcReg))
4450 // Copy from a VR64 register to a GR64 register.
4451 return X86::MMX_MOVD64from64rr;
4452 } else if (X86::GR64RegClass.contains(SrcReg)) {
4453 // Copy from a GR64 register to a VR128 register.
4454 if (X86::VR128XRegClass.contains(DestReg))
4455 return HasAVX512 ? X86::VMOV64toPQIZrr :
4456 HasAVX ? X86::VMOV64toPQIrr :
4458 // Copy from a GR64 register to a VR64 register.
4459 if (X86::VR64RegClass.contains(DestReg))
4460 return X86::MMX_MOVD64to64rr;
4463 // SrcReg(FR32) -> DestReg(GR32)
4464 // SrcReg(GR32) -> DestReg(FR32)
4466 if (X86::GR32RegClass.contains(DestReg) &&
4467 X86::FR32XRegClass.contains(SrcReg))
4468 // Copy from a FR32 register to a GR32 register.
4469 return HasAVX512 ? X86::VMOVSS2DIZrr :
4470 HasAVX ? X86::VMOVSS2DIrr :
4473 if (X86::FR32XRegClass.contains(DestReg) &&
4474 X86::GR32RegClass.contains(SrcReg))
4475 // Copy from a GR32 register to a FR32 register.
4476 return HasAVX512 ? X86::VMOVDI2SSZrr :
4477 HasAVX ? X86::VMOVDI2SSrr :
4482 static bool isMaskRegClass(const TargetRegisterClass *RC) {
4483 // All KMASK RegClasses hold the same k registers, can be tested against anyone.
4484 return X86::VK16RegClass.hasSubClassEq(RC);
4487 static bool MaskRegClassContains(unsigned Reg) {
4488 // All KMASK RegClasses hold the same k registers, can be tested against anyone.
4489 return X86::VK16RegClass.contains(Reg);
4492 static bool GRRegClassContains(unsigned Reg) {
4493 return X86::GR64RegClass.contains(Reg) ||
4494 X86::GR32RegClass.contains(Reg) ||
4495 X86::GR16RegClass.contains(Reg) ||
4496 X86::GR8RegClass.contains(Reg);
4499 unsigned copyPhysRegOpcode_AVX512_DQ(unsigned& DestReg, unsigned& SrcReg) {
4500 if (MaskRegClassContains(SrcReg) && X86::GR8RegClass.contains(DestReg)) {
4501 DestReg = getX86SubSuperRegister(DestReg, 32);
4502 return X86::KMOVBrk;
4504 if (MaskRegClassContains(DestReg) && X86::GR8RegClass.contains(SrcReg)) {
4505 SrcReg = getX86SubSuperRegister(SrcReg, 32);
4506 return X86::KMOVBkr;
4512 unsigned copyPhysRegOpcode_AVX512_BW(unsigned& DestReg, unsigned& SrcReg) {
4513 if (MaskRegClassContains(SrcReg) && MaskRegClassContains(DestReg))
4514 return X86::KMOVQkk;
4515 if (MaskRegClassContains(SrcReg) && X86::GR32RegClass.contains(DestReg))
4516 return X86::KMOVDrk;
4517 if (MaskRegClassContains(SrcReg) && X86::GR64RegClass.contains(DestReg))
4518 return X86::KMOVQrk;
4519 if (MaskRegClassContains(DestReg) && X86::GR32RegClass.contains(SrcReg))
4520 return X86::KMOVDkr;
4521 if (MaskRegClassContains(DestReg) && X86::GR64RegClass.contains(SrcReg))
4522 return X86::KMOVQkr;
4527 unsigned copyPhysRegOpcode_AVX512(unsigned& DestReg, unsigned& SrcReg,
4528 const X86Subtarget &Subtarget)
4530 if (Subtarget.hasDQI())
4531 if (auto Opc = copyPhysRegOpcode_AVX512_DQ(DestReg, SrcReg))
4533 if (Subtarget.hasBWI())
4534 if (auto Opc = copyPhysRegOpcode_AVX512_BW(DestReg, SrcReg))
4536 if (X86::VR128XRegClass.contains(DestReg, SrcReg)) {
4537 if (Subtarget.hasVLX())
4538 return X86::VMOVAPSZ128rr;
4539 DestReg = get512BitSuperRegister(DestReg);
4540 SrcReg = get512BitSuperRegister(SrcReg);
4541 return X86::VMOVAPSZrr;
4543 if (X86::VR256XRegClass.contains(DestReg, SrcReg)) {
4544 if (Subtarget.hasVLX())
4545 return X86::VMOVAPSZ256rr;
4546 DestReg = get512BitSuperRegister(DestReg);
4547 SrcReg = get512BitSuperRegister(SrcReg);
4548 return X86::VMOVAPSZrr;
4550 if (X86::VR512RegClass.contains(DestReg, SrcReg))
4551 return X86::VMOVAPSZrr;
4552 if (MaskRegClassContains(DestReg) && MaskRegClassContains(SrcReg))
4553 return X86::KMOVWkk;
4554 if (MaskRegClassContains(DestReg) && GRRegClassContains(SrcReg)) {
4555 SrcReg = getX86SubSuperRegister(SrcReg, 32);
4556 return X86::KMOVWkr;
4558 if (GRRegClassContains(DestReg) && MaskRegClassContains(SrcReg)) {
4559 DestReg = getX86SubSuperRegister(DestReg, 32);
4560 return X86::KMOVWrk;
4565 void X86InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
4566 MachineBasicBlock::iterator MI,
4567 const DebugLoc &DL, unsigned DestReg,
4568 unsigned SrcReg, bool KillSrc) const {
4569 // First deal with the normal symmetric copies.
4570 bool HasAVX = Subtarget.hasAVX();
4571 bool HasAVX512 = Subtarget.hasAVX512();
4573 if (X86::GR64RegClass.contains(DestReg, SrcReg))
4575 else if (X86::GR32RegClass.contains(DestReg, SrcReg))
4577 else if (X86::GR16RegClass.contains(DestReg, SrcReg))
4579 else if (X86::GR8RegClass.contains(DestReg, SrcReg)) {
4580 // Copying to or from a physical H register on x86-64 requires a NOREX
4581 // move. Otherwise use a normal move.
4582 if ((isHReg(DestReg) || isHReg(SrcReg)) &&
4583 Subtarget.is64Bit()) {
4584 Opc = X86::MOV8rr_NOREX;
4585 // Both operands must be encodable without an REX prefix.
4586 assert(X86::GR8_NOREXRegClass.contains(SrcReg, DestReg) &&
4587 "8-bit H register can not be copied outside GR8_NOREX");
4591 else if (X86::VR64RegClass.contains(DestReg, SrcReg))
4592 Opc = X86::MMX_MOVQ64rr;
4594 Opc = copyPhysRegOpcode_AVX512(DestReg, SrcReg, Subtarget);
4595 else if (X86::VR128RegClass.contains(DestReg, SrcReg))
4596 Opc = HasAVX ? X86::VMOVAPSrr : X86::MOVAPSrr;
4597 else if (X86::VR256RegClass.contains(DestReg, SrcReg))
4598 Opc = X86::VMOVAPSYrr;
4600 Opc = CopyToFromAsymmetricReg(DestReg, SrcReg, Subtarget);
4603 BuildMI(MBB, MI, DL, get(Opc), DestReg)
4604 .addReg(SrcReg, getKillRegState(KillSrc));
4608 bool FromEFLAGS = SrcReg == X86::EFLAGS;
4609 bool ToEFLAGS = DestReg == X86::EFLAGS;
4610 int Reg = FromEFLAGS ? DestReg : SrcReg;
4611 bool is32 = X86::GR32RegClass.contains(Reg);
4612 bool is64 = X86::GR64RegClass.contains(Reg);
4614 if ((FromEFLAGS || ToEFLAGS) && (is32 || is64)) {
4615 int Mov = is64 ? X86::MOV64rr : X86::MOV32rr;
4616 int Push = is64 ? X86::PUSH64r : X86::PUSH32r;
4617 int PushF = is64 ? X86::PUSHF64 : X86::PUSHF32;
4618 int Pop = is64 ? X86::POP64r : X86::POP32r;
4619 int PopF = is64 ? X86::POPF64 : X86::POPF32;
4620 int AX = is64 ? X86::RAX : X86::EAX;
4622 if (!Subtarget.hasLAHFSAHF()) {
4623 assert(Subtarget.is64Bit() &&
4624 "Not having LAHF/SAHF only happens on 64-bit.");
4625 // Moving EFLAGS to / from another register requires a push and a pop.
4626 // Notice that we have to adjust the stack if we don't want to clobber the
4627 // first frame index. See X86FrameLowering.cpp - usesTheStack.
4629 BuildMI(MBB, MI, DL, get(PushF));
4630 BuildMI(MBB, MI, DL, get(Pop), DestReg);
4633 BuildMI(MBB, MI, DL, get(Push))
4634 .addReg(SrcReg, getKillRegState(KillSrc));
4635 BuildMI(MBB, MI, DL, get(PopF));
4640 // The flags need to be saved, but saving EFLAGS with PUSHF/POPF is
4641 // inefficient. Instead:
4642 // - Save the overflow flag OF into AL using SETO, and restore it using a
4643 // signed 8-bit addition of AL and INT8_MAX.
4644 // - Save/restore the bottom 8 EFLAGS bits (CF, PF, AF, ZF, SF) to/from AH
4646 // - When RAX/EAX is live and isn't the destination register, make sure it
4647 // isn't clobbered by PUSH/POP'ing it before and after saving/restoring
4649 // This approach is ~2.25x faster than using PUSHF/POPF.
4651 // This is still somewhat inefficient because we don't know which flags are
4652 // actually live inside EFLAGS. Were we able to do a single SETcc instead of
4653 // SETO+LAHF / ADDB+SAHF the code could be 1.02x faster.
4655 // PUSHF/POPF is also potentially incorrect because it affects other flags
4656 // such as TF/IF/DF, which LLVM doesn't model.
4658 // Notice that we have to adjust the stack if we don't want to clobber the
4659 // first frame index.
4660 // See X86ISelLowering.cpp - X86::hasCopyImplyingStackAdjustment.
4662 const TargetRegisterInfo *TRI = &getRegisterInfo();
4663 MachineBasicBlock::LivenessQueryResult LQR =
4664 MBB.computeRegisterLiveness(TRI, AX, MI);
4665 // We do not want to save and restore AX if we do not have to.
4666 // Moreover, if we do so whereas AX is dead, we would need to set
4667 // an undef flag on the use of AX, otherwise the verifier will
4668 // complain that we read an undef value.
4669 // We do not want to change the behavior of the machine verifier
4670 // as this is usually wrong to read an undef value.
4671 if (MachineBasicBlock::LQR_Unknown == LQR) {
4672 LivePhysRegs LPR(TRI);
4673 LPR.addLiveOuts(MBB);
4674 MachineBasicBlock::iterator I = MBB.end();
4677 LPR.stepBackward(*I);
4679 // AX contains the top most register in the aliasing hierarchy.
4680 // It may not be live, but one of its aliases may be.
4681 for (MCRegAliasIterator AI(AX, TRI, true);
4682 AI.isValid() && LQR != MachineBasicBlock::LQR_Live; ++AI)
4683 LQR = LPR.contains(*AI) ? MachineBasicBlock::LQR_Live
4684 : MachineBasicBlock::LQR_Dead;
4686 bool AXDead = (Reg == AX) || (MachineBasicBlock::LQR_Dead == LQR);
4688 BuildMI(MBB, MI, DL, get(Push)).addReg(AX, getKillRegState(true));
4690 BuildMI(MBB, MI, DL, get(X86::SETOr), X86::AL);
4691 BuildMI(MBB, MI, DL, get(X86::LAHF));
4692 BuildMI(MBB, MI, DL, get(Mov), Reg).addReg(AX);
4695 BuildMI(MBB, MI, DL, get(Mov), AX).addReg(Reg, getKillRegState(KillSrc));
4696 BuildMI(MBB, MI, DL, get(X86::ADD8ri), X86::AL)
4699 BuildMI(MBB, MI, DL, get(X86::SAHF));
4702 BuildMI(MBB, MI, DL, get(Pop), AX);
4706 DEBUG(dbgs() << "Cannot copy " << RI.getName(SrcReg)
4707 << " to " << RI.getName(DestReg) << '\n');
4708 llvm_unreachable("Cannot emit physreg copy instruction");
4711 static unsigned getLoadStoreMaskRegOpcode(const TargetRegisterClass *RC,
4713 switch (RC->getSize()) {
4715 llvm_unreachable("Unknown spill size");
4717 return load ? X86::KMOVWkm : X86::KMOVWmk;
4719 return load ? X86::KMOVDkm : X86::KMOVDmk;
4721 return load ? X86::KMOVQkm : X86::KMOVQmk;
4725 static unsigned getLoadStoreRegOpcode(unsigned Reg,
4726 const TargetRegisterClass *RC,
4727 bool isStackAligned,
4728 const X86Subtarget &STI,
4730 if (STI.hasAVX512()) {
4731 if (isMaskRegClass(RC))
4732 return getLoadStoreMaskRegOpcode(RC, load);
4733 if (RC->getSize() == 4 && X86::FR32XRegClass.hasSubClassEq(RC))
4734 return load ? X86::VMOVSSZrm : X86::VMOVSSZmr;
4735 if (RC->getSize() == 8 && X86::FR64XRegClass.hasSubClassEq(RC))
4736 return load ? X86::VMOVSDZrm : X86::VMOVSDZmr;
4737 if (X86::VR512RegClass.hasSubClassEq(RC))
4738 return load ? X86::VMOVUPSZrm : X86::VMOVUPSZmr;
4741 bool HasAVX = STI.hasAVX();
4742 switch (RC->getSize()) {
4744 llvm_unreachable("Unknown spill size");
4746 assert(X86::GR8RegClass.hasSubClassEq(RC) && "Unknown 1-byte regclass");
4748 // Copying to or from a physical H register on x86-64 requires a NOREX
4749 // move. Otherwise use a normal move.
4750 if (isHReg(Reg) || X86::GR8_ABCD_HRegClass.hasSubClassEq(RC))
4751 return load ? X86::MOV8rm_NOREX : X86::MOV8mr_NOREX;
4752 return load ? X86::MOV8rm : X86::MOV8mr;
4754 assert(X86::GR16RegClass.hasSubClassEq(RC) && "Unknown 2-byte regclass");
4755 return load ? X86::MOV16rm : X86::MOV16mr;
4757 if (X86::GR32RegClass.hasSubClassEq(RC))
4758 return load ? X86::MOV32rm : X86::MOV32mr;
4759 if (X86::FR32RegClass.hasSubClassEq(RC))
4761 (HasAVX ? X86::VMOVSSrm : X86::MOVSSrm) :
4762 (HasAVX ? X86::VMOVSSmr : X86::MOVSSmr);
4763 if (X86::RFP32RegClass.hasSubClassEq(RC))
4764 return load ? X86::LD_Fp32m : X86::ST_Fp32m;
4765 llvm_unreachable("Unknown 4-byte regclass");
4767 if (X86::GR64RegClass.hasSubClassEq(RC))
4768 return load ? X86::MOV64rm : X86::MOV64mr;
4769 if (X86::FR64RegClass.hasSubClassEq(RC))
4771 (HasAVX ? X86::VMOVSDrm : X86::MOVSDrm) :
4772 (HasAVX ? X86::VMOVSDmr : X86::MOVSDmr);
4773 if (X86::VR64RegClass.hasSubClassEq(RC))
4774 return load ? X86::MMX_MOVQ64rm : X86::MMX_MOVQ64mr;
4775 if (X86::RFP64RegClass.hasSubClassEq(RC))
4776 return load ? X86::LD_Fp64m : X86::ST_Fp64m;
4777 llvm_unreachable("Unknown 8-byte regclass");
4779 assert(X86::RFP80RegClass.hasSubClassEq(RC) && "Unknown 10-byte regclass");
4780 return load ? X86::LD_Fp80m : X86::ST_FpP80m;
4782 assert((X86::VR128RegClass.hasSubClassEq(RC) ||
4783 X86::VR128XRegClass.hasSubClassEq(RC))&& "Unknown 16-byte regclass");
4784 // If stack is realigned we can use aligned stores.
4785 if (X86::VR128RegClass.hasSubClassEq(RC)) {
4787 return load ? (HasAVX ? X86::VMOVAPSrm : X86::MOVAPSrm)
4788 : (HasAVX ? X86::VMOVAPSmr : X86::MOVAPSmr);
4790 return load ? (HasAVX ? X86::VMOVUPSrm : X86::MOVUPSrm)
4791 : (HasAVX ? X86::VMOVUPSmr : X86::MOVUPSmr);
4793 assert(STI.hasVLX() && "Using extended register requires VLX");
4795 return load ? X86::VMOVAPSZ128rm : X86::VMOVAPSZ128mr;
4797 return load ? X86::VMOVUPSZ128rm : X86::VMOVUPSZ128mr;
4800 assert((X86::VR256RegClass.hasSubClassEq(RC) ||
4801 X86::VR256XRegClass.hasSubClassEq(RC)) && "Unknown 32-byte regclass");
4802 // If stack is realigned we can use aligned stores.
4803 if (X86::VR256RegClass.hasSubClassEq(RC)) {
4805 return load ? X86::VMOVAPSYrm : X86::VMOVAPSYmr;
4807 return load ? X86::VMOVUPSYrm : X86::VMOVUPSYmr;
4809 assert(STI.hasVLX() && "Using extended register requires VLX");
4811 return load ? X86::VMOVAPSZ256rm : X86::VMOVAPSZ256mr;
4813 return load ? X86::VMOVUPSZ256rm : X86::VMOVUPSZ256mr;
4815 assert(X86::VR512RegClass.hasSubClassEq(RC) && "Unknown 64-byte regclass");
4816 assert(STI.hasVLX() && "Using 512-bit register requires AVX512");
4818 return load ? X86::VMOVAPSZrm : X86::VMOVAPSZmr;
4820 return load ? X86::VMOVUPSZrm : X86::VMOVUPSZmr;
4824 bool X86InstrInfo::getMemOpBaseRegImmOfs(MachineInstr &MemOp, unsigned &BaseReg,
4826 const TargetRegisterInfo *TRI) const {
4827 const MCInstrDesc &Desc = MemOp.getDesc();
4828 int MemRefBegin = X86II::getMemoryOperandNo(Desc.TSFlags);
4829 if (MemRefBegin < 0)
4832 MemRefBegin += X86II::getOperandBias(Desc);
4834 MachineOperand &BaseMO = MemOp.getOperand(MemRefBegin + X86::AddrBaseReg);
4835 if (!BaseMO.isReg()) // Can be an MO_FrameIndex
4838 BaseReg = BaseMO.getReg();
4839 if (MemOp.getOperand(MemRefBegin + X86::AddrScaleAmt).getImm() != 1)
4842 if (MemOp.getOperand(MemRefBegin + X86::AddrIndexReg).getReg() !=
4846 const MachineOperand &DispMO = MemOp.getOperand(MemRefBegin + X86::AddrDisp);
4848 // Displacement can be symbolic
4849 if (!DispMO.isImm())
4852 Offset = DispMO.getImm();
4854 return MemOp.getOperand(MemRefBegin + X86::AddrIndexReg).getReg() ==
4858 static unsigned getStoreRegOpcode(unsigned SrcReg,
4859 const TargetRegisterClass *RC,
4860 bool isStackAligned,
4861 const X86Subtarget &STI) {
4862 return getLoadStoreRegOpcode(SrcReg, RC, isStackAligned, STI, false);
4866 static unsigned getLoadRegOpcode(unsigned DestReg,
4867 const TargetRegisterClass *RC,
4868 bool isStackAligned,
4869 const X86Subtarget &STI) {
4870 return getLoadStoreRegOpcode(DestReg, RC, isStackAligned, STI, true);
4873 void X86InstrInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
4874 MachineBasicBlock::iterator MI,
4875 unsigned SrcReg, bool isKill, int FrameIdx,
4876 const TargetRegisterClass *RC,
4877 const TargetRegisterInfo *TRI) const {
4878 const MachineFunction &MF = *MBB.getParent();
4879 assert(MF.getFrameInfo()->getObjectSize(FrameIdx) >= RC->getSize() &&
4880 "Stack slot too small for store");
4881 unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
4883 (Subtarget.getFrameLowering()->getStackAlignment() >= Alignment) ||
4884 RI.canRealignStack(MF);
4885 unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, Subtarget);
4886 DebugLoc DL = MBB.findDebugLoc(MI);
4887 addFrameReference(BuildMI(MBB, MI, DL, get(Opc)), FrameIdx)
4888 .addReg(SrcReg, getKillRegState(isKill));
4891 void X86InstrInfo::storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
4893 SmallVectorImpl<MachineOperand> &Addr,
4894 const TargetRegisterClass *RC,
4895 MachineInstr::mmo_iterator MMOBegin,
4896 MachineInstr::mmo_iterator MMOEnd,
4897 SmallVectorImpl<MachineInstr*> &NewMIs) const {
4898 unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
4899 bool isAligned = MMOBegin != MMOEnd &&
4900 (*MMOBegin)->getAlignment() >= Alignment;
4901 unsigned Opc = getStoreRegOpcode(SrcReg, RC, isAligned, Subtarget);
4903 MachineInstrBuilder MIB = BuildMI(MF, DL, get(Opc));
4904 for (unsigned i = 0, e = Addr.size(); i != e; ++i)
4905 MIB.addOperand(Addr[i]);
4906 MIB.addReg(SrcReg, getKillRegState(isKill));
4907 (*MIB).setMemRefs(MMOBegin, MMOEnd);
4908 NewMIs.push_back(MIB);
4912 void X86InstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
4913 MachineBasicBlock::iterator MI,
4914 unsigned DestReg, int FrameIdx,
4915 const TargetRegisterClass *RC,
4916 const TargetRegisterInfo *TRI) const {
4917 const MachineFunction &MF = *MBB.getParent();
4918 unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
4920 (Subtarget.getFrameLowering()->getStackAlignment() >= Alignment) ||
4921 RI.canRealignStack(MF);
4922 unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, Subtarget);
4923 DebugLoc DL = MBB.findDebugLoc(MI);
4924 addFrameReference(BuildMI(MBB, MI, DL, get(Opc), DestReg), FrameIdx);
4927 void X86InstrInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
4928 SmallVectorImpl<MachineOperand> &Addr,
4929 const TargetRegisterClass *RC,
4930 MachineInstr::mmo_iterator MMOBegin,
4931 MachineInstr::mmo_iterator MMOEnd,
4932 SmallVectorImpl<MachineInstr*> &NewMIs) const {
4933 unsigned Alignment = std::max<uint32_t>(RC->getSize(), 16);
4934 bool isAligned = MMOBegin != MMOEnd &&
4935 (*MMOBegin)->getAlignment() >= Alignment;
4936 unsigned Opc = getLoadRegOpcode(DestReg, RC, isAligned, Subtarget);
4938 MachineInstrBuilder MIB = BuildMI(MF, DL, get(Opc), DestReg);
4939 for (unsigned i = 0, e = Addr.size(); i != e; ++i)
4940 MIB.addOperand(Addr[i]);
4941 (*MIB).setMemRefs(MMOBegin, MMOEnd);
4942 NewMIs.push_back(MIB);
4945 bool X86InstrInfo::analyzeCompare(const MachineInstr &MI, unsigned &SrcReg,
4946 unsigned &SrcReg2, int &CmpMask,
4947 int &CmpValue) const {
4948 switch (MI.getOpcode()) {
4950 case X86::CMP64ri32:
4957 SrcReg = MI.getOperand(0).getReg();
4960 CmpValue = MI.getOperand(1).getImm();
4962 // A SUB can be used to perform comparison.
4967 SrcReg = MI.getOperand(1).getReg();
4976 SrcReg = MI.getOperand(1).getReg();
4977 SrcReg2 = MI.getOperand(2).getReg();
4981 case X86::SUB64ri32:
4988 SrcReg = MI.getOperand(1).getReg();
4991 CmpValue = MI.getOperand(2).getImm();
4997 SrcReg = MI.getOperand(0).getReg();
4998 SrcReg2 = MI.getOperand(1).getReg();
5006 SrcReg = MI.getOperand(0).getReg();
5007 if (MI.getOperand(1).getReg() != SrcReg)
5009 // Compare against zero.
5018 /// Check whether the first instruction, whose only
5019 /// purpose is to update flags, can be made redundant.
5020 /// CMPrr can be made redundant by SUBrr if the operands are the same.
5021 /// This function can be extended later on.
5022 /// SrcReg, SrcRegs: register operands for FlagI.
5023 /// ImmValue: immediate for FlagI if it takes an immediate.
5024 inline static bool isRedundantFlagInstr(MachineInstr &FlagI, unsigned SrcReg,
5025 unsigned SrcReg2, int ImmValue,
5027 if (((FlagI.getOpcode() == X86::CMP64rr && OI.getOpcode() == X86::SUB64rr) ||
5028 (FlagI.getOpcode() == X86::CMP32rr && OI.getOpcode() == X86::SUB32rr) ||
5029 (FlagI.getOpcode() == X86::CMP16rr && OI.getOpcode() == X86::SUB16rr) ||
5030 (FlagI.getOpcode() == X86::CMP8rr && OI.getOpcode() == X86::SUB8rr)) &&
5031 ((OI.getOperand(1).getReg() == SrcReg &&
5032 OI.getOperand(2).getReg() == SrcReg2) ||
5033 (OI.getOperand(1).getReg() == SrcReg2 &&
5034 OI.getOperand(2).getReg() == SrcReg)))
5037 if (((FlagI.getOpcode() == X86::CMP64ri32 &&
5038 OI.getOpcode() == X86::SUB64ri32) ||
5039 (FlagI.getOpcode() == X86::CMP64ri8 &&
5040 OI.getOpcode() == X86::SUB64ri8) ||
5041 (FlagI.getOpcode() == X86::CMP32ri && OI.getOpcode() == X86::SUB32ri) ||
5042 (FlagI.getOpcode() == X86::CMP32ri8 &&
5043 OI.getOpcode() == X86::SUB32ri8) ||
5044 (FlagI.getOpcode() == X86::CMP16ri && OI.getOpcode() == X86::SUB16ri) ||
5045 (FlagI.getOpcode() == X86::CMP16ri8 &&
5046 OI.getOpcode() == X86::SUB16ri8) ||
5047 (FlagI.getOpcode() == X86::CMP8ri && OI.getOpcode() == X86::SUB8ri)) &&
5048 OI.getOperand(1).getReg() == SrcReg &&
5049 OI.getOperand(2).getImm() == ImmValue)
5054 /// Check whether the definition can be converted
5055 /// to remove a comparison against zero.
5056 inline static bool isDefConvertible(MachineInstr &MI) {
5057 switch (MI.getOpcode()) {
5058 default: return false;
5060 // The shift instructions only modify ZF if their shift count is non-zero.
5061 // N.B.: The processor truncates the shift count depending on the encoding.
5062 case X86::SAR8ri: case X86::SAR16ri: case X86::SAR32ri:case X86::SAR64ri:
5063 case X86::SHR8ri: case X86::SHR16ri: case X86::SHR32ri:case X86::SHR64ri:
5064 return getTruncatedShiftCount(MI, 2) != 0;
5066 // Some left shift instructions can be turned into LEA instructions but only
5067 // if their flags aren't used. Avoid transforming such instructions.
5068 case X86::SHL8ri: case X86::SHL16ri: case X86::SHL32ri:case X86::SHL64ri:{
5069 unsigned ShAmt = getTruncatedShiftCount(MI, 2);
5070 if (isTruncatedShiftCountForLEA(ShAmt)) return false;
5074 case X86::SHRD16rri8:case X86::SHRD32rri8:case X86::SHRD64rri8:
5075 case X86::SHLD16rri8:case X86::SHLD32rri8:case X86::SHLD64rri8:
5076 return getTruncatedShiftCount(MI, 3) != 0;
5078 case X86::SUB64ri32: case X86::SUB64ri8: case X86::SUB32ri:
5079 case X86::SUB32ri8: case X86::SUB16ri: case X86::SUB16ri8:
5080 case X86::SUB8ri: case X86::SUB64rr: case X86::SUB32rr:
5081 case X86::SUB16rr: case X86::SUB8rr: case X86::SUB64rm:
5082 case X86::SUB32rm: case X86::SUB16rm: case X86::SUB8rm:
5083 case X86::DEC64r: case X86::DEC32r: case X86::DEC16r: case X86::DEC8r:
5084 case X86::ADD64ri32: case X86::ADD64ri8: case X86::ADD32ri:
5085 case X86::ADD32ri8: case X86::ADD16ri: case X86::ADD16ri8:
5086 case X86::ADD8ri: case X86::ADD64rr: case X86::ADD32rr:
5087 case X86::ADD16rr: case X86::ADD8rr: case X86::ADD64rm:
5088 case X86::ADD32rm: case X86::ADD16rm: case X86::ADD8rm:
5089 case X86::INC64r: case X86::INC32r: case X86::INC16r: case X86::INC8r:
5090 case X86::AND64ri32: case X86::AND64ri8: case X86::AND32ri:
5091 case X86::AND32ri8: case X86::AND16ri: case X86::AND16ri8:
5092 case X86::AND8ri: case X86::AND64rr: case X86::AND32rr:
5093 case X86::AND16rr: case X86::AND8rr: case X86::AND64rm:
5094 case X86::AND32rm: case X86::AND16rm: case X86::AND8rm:
5095 case X86::XOR64ri32: case X86::XOR64ri8: case X86::XOR32ri:
5096 case X86::XOR32ri8: case X86::XOR16ri: case X86::XOR16ri8:
5097 case X86::XOR8ri: case X86::XOR64rr: case X86::XOR32rr:
5098 case X86::XOR16rr: case X86::XOR8rr: case X86::XOR64rm:
5099 case X86::XOR32rm: case X86::XOR16rm: case X86::XOR8rm:
5100 case X86::OR64ri32: case X86::OR64ri8: case X86::OR32ri:
5101 case X86::OR32ri8: case X86::OR16ri: case X86::OR16ri8:
5102 case X86::OR8ri: case X86::OR64rr: case X86::OR32rr:
5103 case X86::OR16rr: case X86::OR8rr: case X86::OR64rm:
5104 case X86::OR32rm: case X86::OR16rm: case X86::OR8rm:
5105 case X86::NEG8r: case X86::NEG16r: case X86::NEG32r: case X86::NEG64r:
5106 case X86::SAR8r1: case X86::SAR16r1: case X86::SAR32r1:case X86::SAR64r1:
5107 case X86::SHR8r1: case X86::SHR16r1: case X86::SHR32r1:case X86::SHR64r1:
5108 case X86::SHL8r1: case X86::SHL16r1: case X86::SHL32r1:case X86::SHL64r1:
5109 case X86::ADC32ri: case X86::ADC32ri8:
5110 case X86::ADC32rr: case X86::ADC64ri32:
5111 case X86::ADC64ri8: case X86::ADC64rr:
5112 case X86::SBB32ri: case X86::SBB32ri8:
5113 case X86::SBB32rr: case X86::SBB64ri32:
5114 case X86::SBB64ri8: case X86::SBB64rr:
5115 case X86::ANDN32rr: case X86::ANDN32rm:
5116 case X86::ANDN64rr: case X86::ANDN64rm:
5117 case X86::BEXTR32rr: case X86::BEXTR64rr:
5118 case X86::BEXTR32rm: case X86::BEXTR64rm:
5119 case X86::BLSI32rr: case X86::BLSI32rm:
5120 case X86::BLSI64rr: case X86::BLSI64rm:
5121 case X86::BLSMSK32rr:case X86::BLSMSK32rm:
5122 case X86::BLSMSK64rr:case X86::BLSMSK64rm:
5123 case X86::BLSR32rr: case X86::BLSR32rm:
5124 case X86::BLSR64rr: case X86::BLSR64rm:
5125 case X86::BZHI32rr: case X86::BZHI32rm:
5126 case X86::BZHI64rr: case X86::BZHI64rm:
5127 case X86::LZCNT16rr: case X86::LZCNT16rm:
5128 case X86::LZCNT32rr: case X86::LZCNT32rm:
5129 case X86::LZCNT64rr: case X86::LZCNT64rm:
5130 case X86::POPCNT16rr:case X86::POPCNT16rm:
5131 case X86::POPCNT32rr:case X86::POPCNT32rm:
5132 case X86::POPCNT64rr:case X86::POPCNT64rm:
5133 case X86::TZCNT16rr: case X86::TZCNT16rm:
5134 case X86::TZCNT32rr: case X86::TZCNT32rm:
5135 case X86::TZCNT64rr: case X86::TZCNT64rm:
5140 /// Check whether the use can be converted to remove a comparison against zero.
5141 static X86::CondCode isUseDefConvertible(MachineInstr &MI) {
5142 switch (MI.getOpcode()) {
5143 default: return X86::COND_INVALID;
5144 case X86::LZCNT16rr: case X86::LZCNT16rm:
5145 case X86::LZCNT32rr: case X86::LZCNT32rm:
5146 case X86::LZCNT64rr: case X86::LZCNT64rm:
5148 case X86::POPCNT16rr:case X86::POPCNT16rm:
5149 case X86::POPCNT32rr:case X86::POPCNT32rm:
5150 case X86::POPCNT64rr:case X86::POPCNT64rm:
5152 case X86::TZCNT16rr: case X86::TZCNT16rm:
5153 case X86::TZCNT32rr: case X86::TZCNT32rm:
5154 case X86::TZCNT64rr: case X86::TZCNT64rm:
5159 /// Check if there exists an earlier instruction that
5160 /// operates on the same source operands and sets flags in the same way as
5161 /// Compare; remove Compare if possible.
5162 bool X86InstrInfo::optimizeCompareInstr(MachineInstr &CmpInstr, unsigned SrcReg,
5163 unsigned SrcReg2, int CmpMask,
5165 const MachineRegisterInfo *MRI) const {
5166 // Check whether we can replace SUB with CMP.
5167 unsigned NewOpcode = 0;
5168 switch (CmpInstr.getOpcode()) {
5170 case X86::SUB64ri32:
5185 if (!MRI->use_nodbg_empty(CmpInstr.getOperand(0).getReg()))
5187 // There is no use of the destination register, we can replace SUB with CMP.
5188 switch (CmpInstr.getOpcode()) {
5189 default: llvm_unreachable("Unreachable!");
5190 case X86::SUB64rm: NewOpcode = X86::CMP64rm; break;
5191 case X86::SUB32rm: NewOpcode = X86::CMP32rm; break;
5192 case X86::SUB16rm: NewOpcode = X86::CMP16rm; break;
5193 case X86::SUB8rm: NewOpcode = X86::CMP8rm; break;
5194 case X86::SUB64rr: NewOpcode = X86::CMP64rr; break;
5195 case X86::SUB32rr: NewOpcode = X86::CMP32rr; break;
5196 case X86::SUB16rr: NewOpcode = X86::CMP16rr; break;
5197 case X86::SUB8rr: NewOpcode = X86::CMP8rr; break;
5198 case X86::SUB64ri32: NewOpcode = X86::CMP64ri32; break;
5199 case X86::SUB64ri8: NewOpcode = X86::CMP64ri8; break;
5200 case X86::SUB32ri: NewOpcode = X86::CMP32ri; break;
5201 case X86::SUB32ri8: NewOpcode = X86::CMP32ri8; break;
5202 case X86::SUB16ri: NewOpcode = X86::CMP16ri; break;
5203 case X86::SUB16ri8: NewOpcode = X86::CMP16ri8; break;
5204 case X86::SUB8ri: NewOpcode = X86::CMP8ri; break;
5206 CmpInstr.setDesc(get(NewOpcode));
5207 CmpInstr.RemoveOperand(0);
5208 // Fall through to optimize Cmp if Cmp is CMPrr or CMPri.
5209 if (NewOpcode == X86::CMP64rm || NewOpcode == X86::CMP32rm ||
5210 NewOpcode == X86::CMP16rm || NewOpcode == X86::CMP8rm)
5215 // Get the unique definition of SrcReg.
5216 MachineInstr *MI = MRI->getUniqueVRegDef(SrcReg);
5217 if (!MI) return false;
5219 // CmpInstr is the first instruction of the BB.
5220 MachineBasicBlock::iterator I = CmpInstr, Def = MI;
5222 // If we are comparing against zero, check whether we can use MI to update
5223 // EFLAGS. If MI is not in the same BB as CmpInstr, do not optimize.
5224 bool IsCmpZero = (SrcReg2 == 0 && CmpValue == 0);
5225 if (IsCmpZero && MI->getParent() != CmpInstr.getParent())
5228 // If we have a use of the source register between the def and our compare
5229 // instruction we can eliminate the compare iff the use sets EFLAGS in the
5231 bool ShouldUpdateCC = false;
5232 X86::CondCode NewCC = X86::COND_INVALID;
5233 if (IsCmpZero && !isDefConvertible(*MI)) {
5234 // Scan forward from the use until we hit the use we're looking for or the
5235 // compare instruction.
5236 for (MachineBasicBlock::iterator J = MI;; ++J) {
5237 // Do we have a convertible instruction?
5238 NewCC = isUseDefConvertible(*J);
5239 if (NewCC != X86::COND_INVALID && J->getOperand(1).isReg() &&
5240 J->getOperand(1).getReg() == SrcReg) {
5241 assert(J->definesRegister(X86::EFLAGS) && "Must be an EFLAGS def!");
5242 ShouldUpdateCC = true; // Update CC later on.
5243 // This is not a def of SrcReg, but still a def of EFLAGS. Keep going
5244 // with the new def.
5255 // We are searching for an earlier instruction that can make CmpInstr
5256 // redundant and that instruction will be saved in Sub.
5257 MachineInstr *Sub = nullptr;
5258 const TargetRegisterInfo *TRI = &getRegisterInfo();
5260 // We iterate backward, starting from the instruction before CmpInstr and
5261 // stop when reaching the definition of a source register or done with the BB.
5262 // RI points to the instruction before CmpInstr.
5263 // If the definition is in this basic block, RE points to the definition;
5264 // otherwise, RE is the rend of the basic block.
5265 MachineBasicBlock::reverse_iterator
5266 RI = MachineBasicBlock::reverse_iterator(I),
5267 RE = CmpInstr.getParent() == MI->getParent()
5268 ? MachineBasicBlock::reverse_iterator(++Def) /* points to MI */
5269 : CmpInstr.getParent()->rend();
5270 MachineInstr *Movr0Inst = nullptr;
5271 for (; RI != RE; ++RI) {
5272 MachineInstr &Instr = *RI;
5273 // Check whether CmpInstr can be made redundant by the current instruction.
5275 isRedundantFlagInstr(CmpInstr, SrcReg, SrcReg2, CmpValue, Instr)) {
5280 if (Instr.modifiesRegister(X86::EFLAGS, TRI) ||
5281 Instr.readsRegister(X86::EFLAGS, TRI)) {
5282 // This instruction modifies or uses EFLAGS.
5284 // MOV32r0 etc. are implemented with xor which clobbers condition code.
5285 // They are safe to move up, if the definition to EFLAGS is dead and
5286 // earlier instructions do not read or write EFLAGS.
5287 if (!Movr0Inst && Instr.getOpcode() == X86::MOV32r0 &&
5288 Instr.registerDefIsDead(X86::EFLAGS, TRI)) {
5293 // We can't remove CmpInstr.
5298 // Return false if no candidates exist.
5299 if (!IsCmpZero && !Sub)
5302 bool IsSwapped = (SrcReg2 != 0 && Sub->getOperand(1).getReg() == SrcReg2 &&
5303 Sub->getOperand(2).getReg() == SrcReg);
5305 // Scan forward from the instruction after CmpInstr for uses of EFLAGS.
5306 // It is safe to remove CmpInstr if EFLAGS is redefined or killed.
5307 // If we are done with the basic block, we need to check whether EFLAGS is
5309 bool IsSafe = false;
5310 SmallVector<std::pair<MachineInstr*, unsigned /*NewOpc*/>, 4> OpsToUpdate;
5311 MachineBasicBlock::iterator E = CmpInstr.getParent()->end();
5312 for (++I; I != E; ++I) {
5313 const MachineInstr &Instr = *I;
5314 bool ModifyEFLAGS = Instr.modifiesRegister(X86::EFLAGS, TRI);
5315 bool UseEFLAGS = Instr.readsRegister(X86::EFLAGS, TRI);
5316 // We should check the usage if this instruction uses and updates EFLAGS.
5317 if (!UseEFLAGS && ModifyEFLAGS) {
5318 // It is safe to remove CmpInstr if EFLAGS is updated again.
5322 if (!UseEFLAGS && !ModifyEFLAGS)
5325 // EFLAGS is used by this instruction.
5326 X86::CondCode OldCC = X86::COND_INVALID;
5327 bool OpcIsSET = false;
5328 if (IsCmpZero || IsSwapped) {
5329 // We decode the condition code from opcode.
5330 if (Instr.isBranch())
5331 OldCC = getCondFromBranchOpc(Instr.getOpcode());
5333 OldCC = getCondFromSETOpc(Instr.getOpcode());
5334 if (OldCC != X86::COND_INVALID)
5337 OldCC = X86::getCondFromCMovOpc(Instr.getOpcode());
5339 if (OldCC == X86::COND_INVALID) return false;
5344 case X86::COND_A: case X86::COND_AE:
5345 case X86::COND_B: case X86::COND_BE:
5346 case X86::COND_G: case X86::COND_GE:
5347 case X86::COND_L: case X86::COND_LE:
5348 case X86::COND_O: case X86::COND_NO:
5349 // CF and OF are used, we can't perform this optimization.
5353 // If we're updating the condition code check if we have to reverse the
5362 NewCC = GetOppositeBranchCondition(NewCC);
5365 } else if (IsSwapped) {
5366 // If we have SUB(r1, r2) and CMP(r2, r1), the condition code needs
5367 // to be changed from r2 > r1 to r1 < r2, from r2 < r1 to r1 > r2, etc.
5368 // We swap the condition code and synthesize the new opcode.
5369 NewCC = getSwappedCondition(OldCC);
5370 if (NewCC == X86::COND_INVALID) return false;
5373 if ((ShouldUpdateCC || IsSwapped) && NewCC != OldCC) {
5374 // Synthesize the new opcode.
5375 bool HasMemoryOperand = Instr.hasOneMemOperand();
5377 if (Instr.isBranch())
5378 NewOpc = GetCondBranchFromCond(NewCC);
5380 NewOpc = getSETFromCond(NewCC, HasMemoryOperand);
5382 unsigned DstReg = Instr.getOperand(0).getReg();
5383 NewOpc = getCMovFromCond(NewCC, MRI->getRegClass(DstReg)->getSize(),
5387 // Push the MachineInstr to OpsToUpdate.
5388 // If it is safe to remove CmpInstr, the condition code of these
5389 // instructions will be modified.
5390 OpsToUpdate.push_back(std::make_pair(&*I, NewOpc));
5392 if (ModifyEFLAGS || Instr.killsRegister(X86::EFLAGS, TRI)) {
5393 // It is safe to remove CmpInstr if EFLAGS is updated again or killed.
5399 // If EFLAGS is not killed nor re-defined, we should check whether it is
5400 // live-out. If it is live-out, do not optimize.
5401 if ((IsCmpZero || IsSwapped) && !IsSafe) {
5402 MachineBasicBlock *MBB = CmpInstr.getParent();
5403 for (MachineBasicBlock *Successor : MBB->successors())
5404 if (Successor->isLiveIn(X86::EFLAGS))
5408 // The instruction to be updated is either Sub or MI.
5409 Sub = IsCmpZero ? MI : Sub;
5410 // Move Movr0Inst to the appropriate place before Sub.
5412 // Look backwards until we find a def that doesn't use the current EFLAGS.
5414 MachineBasicBlock::reverse_iterator
5415 InsertI = MachineBasicBlock::reverse_iterator(++Def),
5416 InsertE = Sub->getParent()->rend();
5417 for (; InsertI != InsertE; ++InsertI) {
5418 MachineInstr *Instr = &*InsertI;
5419 if (!Instr->readsRegister(X86::EFLAGS, TRI) &&
5420 Instr->modifiesRegister(X86::EFLAGS, TRI)) {
5421 Sub->getParent()->remove(Movr0Inst);
5422 Instr->getParent()->insert(MachineBasicBlock::iterator(Instr),
5427 if (InsertI == InsertE)
5431 // Make sure Sub instruction defines EFLAGS and mark the def live.
5432 unsigned i = 0, e = Sub->getNumOperands();
5433 for (; i != e; ++i) {
5434 MachineOperand &MO = Sub->getOperand(i);
5435 if (MO.isReg() && MO.isDef() && MO.getReg() == X86::EFLAGS) {
5436 MO.setIsDead(false);
5440 assert(i != e && "Unable to locate a def EFLAGS operand");
5442 CmpInstr.eraseFromParent();
5444 // Modify the condition code of instructions in OpsToUpdate.
5445 for (auto &Op : OpsToUpdate)
5446 Op.first->setDesc(get(Op.second));
5450 /// Try to remove the load by folding it to a register
5451 /// operand at the use. We fold the load instructions if load defines a virtual
5452 /// register, the virtual register is used once in the same BB, and the
5453 /// instructions in-between do not load or store, and have no side effects.
5454 MachineInstr *X86InstrInfo::optimizeLoadInstr(MachineInstr &MI,
5455 const MachineRegisterInfo *MRI,
5456 unsigned &FoldAsLoadDefReg,
5457 MachineInstr *&DefMI) const {
5458 if (FoldAsLoadDefReg == 0)
5460 // To be conservative, if there exists another load, clear the load candidate.
5462 FoldAsLoadDefReg = 0;
5466 // Check whether we can move DefMI here.
5467 DefMI = MRI->getVRegDef(FoldAsLoadDefReg);
5469 bool SawStore = false;
5470 if (!DefMI->isSafeToMove(nullptr, SawStore))
5473 // Collect information about virtual register operands of MI.
5474 unsigned SrcOperandId = 0;
5475 bool FoundSrcOperand = false;
5476 for (unsigned i = 0, e = MI.getDesc().getNumOperands(); i != e; ++i) {
5477 MachineOperand &MO = MI.getOperand(i);
5480 unsigned Reg = MO.getReg();
5481 if (Reg != FoldAsLoadDefReg)
5483 // Do not fold if we have a subreg use or a def or multiple uses.
5484 if (MO.getSubReg() || MO.isDef() || FoundSrcOperand)
5488 FoundSrcOperand = true;
5490 if (!FoundSrcOperand)
5493 // Check whether we can fold the def into SrcOperandId.
5494 if (MachineInstr *FoldMI = foldMemoryOperand(MI, SrcOperandId, *DefMI)) {
5495 FoldAsLoadDefReg = 0;
5502 /// Expand a single-def pseudo instruction to a two-addr
5503 /// instruction with two undef reads of the register being defined.
5504 /// This is used for mapping:
5507 /// %xmm4 = PXORrr %xmm4<undef>, %xmm4<undef>
5509 static bool Expand2AddrUndef(MachineInstrBuilder &MIB,
5510 const MCInstrDesc &Desc) {
5511 assert(Desc.getNumOperands() == 3 && "Expected two-addr instruction.");
5512 unsigned Reg = MIB->getOperand(0).getReg();
5515 // MachineInstr::addOperand() will insert explicit operands before any
5516 // implicit operands.
5517 MIB.addReg(Reg, RegState::Undef).addReg(Reg, RegState::Undef);
5518 // But we don't trust that.
5519 assert(MIB->getOperand(1).getReg() == Reg &&
5520 MIB->getOperand(2).getReg() == Reg && "Misplaced operand");
5524 /// Expand a single-def pseudo instruction to a two-addr
5525 /// instruction with two %k0 reads.
5526 /// This is used for mapping:
5529 /// %k4 = KXNORrr %k0, %k0
5530 static bool Expand2AddrKreg(MachineInstrBuilder &MIB,
5531 const MCInstrDesc &Desc, unsigned Reg) {
5532 assert(Desc.getNumOperands() == 3 && "Expected two-addr instruction.");
5534 MIB.addReg(Reg, RegState::Undef).addReg(Reg, RegState::Undef);
5538 static bool expandMOV32r1(MachineInstrBuilder &MIB, const TargetInstrInfo &TII,
5540 MachineBasicBlock &MBB = *MIB->getParent();
5541 DebugLoc DL = MIB->getDebugLoc();
5542 unsigned Reg = MIB->getOperand(0).getReg();
5545 BuildMI(MBB, MIB.getInstr(), DL, TII.get(X86::XOR32rr), Reg)
5546 .addReg(Reg, RegState::Undef)
5547 .addReg(Reg, RegState::Undef);
5549 // Turn the pseudo into an INC or DEC.
5550 MIB->setDesc(TII.get(MinusOne ? X86::DEC32r : X86::INC32r));
5556 bool X86InstrInfo::ExpandMOVImmSExti8(MachineInstrBuilder &MIB) const {
5557 MachineBasicBlock &MBB = *MIB->getParent();
5558 DebugLoc DL = MIB->getDebugLoc();
5559 int64_t Imm = MIB->getOperand(1).getImm();
5560 assert(Imm != 0 && "Using push/pop for 0 is not efficient.");
5561 MachineBasicBlock::iterator I = MIB.getInstr();
5563 int StackAdjustment;
5565 if (Subtarget.is64Bit()) {
5566 assert(MIB->getOpcode() == X86::MOV64ImmSExti8 ||
5567 MIB->getOpcode() == X86::MOV32ImmSExti8);
5569 // Can't use push/pop lowering if the function might write to the red zone.
5570 X86MachineFunctionInfo *X86FI =
5571 MBB.getParent()->getInfo<X86MachineFunctionInfo>();
5572 if (X86FI->getUsesRedZone()) {
5573 MIB->setDesc(get(MIB->getOpcode() == X86::MOV32ImmSExti8 ? X86::MOV32ri
5578 // 64-bit mode doesn't have 32-bit push/pop, so use 64-bit operations and
5579 // widen the register if necessary.
5580 StackAdjustment = 8;
5581 BuildMI(MBB, I, DL, get(X86::PUSH64i8)).addImm(Imm);
5582 MIB->setDesc(get(X86::POP64r));
5584 .setReg(getX86SubSuperRegister(MIB->getOperand(0).getReg(), 64));
5586 assert(MIB->getOpcode() == X86::MOV32ImmSExti8);
5587 StackAdjustment = 4;
5588 BuildMI(MBB, I, DL, get(X86::PUSH32i8)).addImm(Imm);
5589 MIB->setDesc(get(X86::POP32r));
5592 // Build CFI if necessary.
5593 MachineFunction &MF = *MBB.getParent();
5594 const X86FrameLowering *TFL = Subtarget.getFrameLowering();
5595 bool IsWin64Prologue = MF.getTarget().getMCAsmInfo()->usesWindowsCFI();
5596 bool NeedsDwarfCFI =
5598 (MF.getMMI().hasDebugInfo() || MF.getFunction()->needsUnwindTableEntry());
5599 bool EmitCFI = !TFL->hasFP(MF) && NeedsDwarfCFI;
5601 TFL->BuildCFI(MBB, I, DL,
5602 MCCFIInstruction::createAdjustCfaOffset(nullptr, StackAdjustment));
5603 TFL->BuildCFI(MBB, std::next(I), DL,
5604 MCCFIInstruction::createAdjustCfaOffset(nullptr, -StackAdjustment));
5610 // LoadStackGuard has so far only been implemented for 64-bit MachO. Different
5611 // code sequence is needed for other targets.
5612 static void expandLoadStackGuard(MachineInstrBuilder &MIB,
5613 const TargetInstrInfo &TII) {
5614 MachineBasicBlock &MBB = *MIB->getParent();
5615 DebugLoc DL = MIB->getDebugLoc();
5616 unsigned Reg = MIB->getOperand(0).getReg();
5617 const GlobalValue *GV =
5618 cast<GlobalValue>((*MIB->memoperands_begin())->getValue());
5619 auto Flags = MachineMemOperand::MOLoad | MachineMemOperand::MOInvariant;
5620 MachineMemOperand *MMO = MBB.getParent()->getMachineMemOperand(
5621 MachinePointerInfo::getGOT(*MBB.getParent()), Flags, 8, 8);
5622 MachineBasicBlock::iterator I = MIB.getInstr();
5624 BuildMI(MBB, I, DL, TII.get(X86::MOV64rm), Reg).addReg(X86::RIP).addImm(1)
5625 .addReg(0).addGlobalAddress(GV, 0, X86II::MO_GOTPCREL).addReg(0)
5626 .addMemOperand(MMO);
5627 MIB->setDebugLoc(DL);
5628 MIB->setDesc(TII.get(X86::MOV64rm));
5629 MIB.addReg(Reg, RegState::Kill).addImm(1).addReg(0).addImm(0).addReg(0);
5632 bool X86InstrInfo::expandPostRAPseudo(MachineInstr &MI) const {
5633 bool HasAVX = Subtarget.hasAVX();
5634 MachineInstrBuilder MIB(*MI.getParent()->getParent(), MI);
5635 switch (MI.getOpcode()) {
5637 return Expand2AddrUndef(MIB, get(X86::XOR32rr));
5639 return expandMOV32r1(MIB, *this, /*MinusOne=*/ false);
5641 return expandMOV32r1(MIB, *this, /*MinusOne=*/ true);
5642 case X86::MOV32ImmSExti8:
5643 case X86::MOV64ImmSExti8:
5644 return ExpandMOVImmSExti8(MIB);
5646 return Expand2AddrUndef(MIB, get(X86::SBB8rr));
5647 case X86::SETB_C16r:
5648 return Expand2AddrUndef(MIB, get(X86::SBB16rr));
5649 case X86::SETB_C32r:
5650 return Expand2AddrUndef(MIB, get(X86::SBB32rr));
5651 case X86::SETB_C64r:
5652 return Expand2AddrUndef(MIB, get(X86::SBB64rr));
5656 return Expand2AddrUndef(MIB, get(HasAVX ? X86::VXORPSrr : X86::XORPSrr));
5658 assert(HasAVX && "AVX not supported");
5659 return Expand2AddrUndef(MIB, get(X86::VXORPSYrr));
5660 case X86::AVX512_128_SET0:
5661 return Expand2AddrUndef(MIB, get(X86::VPXORDZ128rr));
5662 case X86::AVX512_256_SET0:
5663 return Expand2AddrUndef(MIB, get(X86::VPXORDZ256rr));
5664 case X86::AVX512_512_SET0:
5665 return Expand2AddrUndef(MIB, get(X86::VPXORDZrr));
5666 case X86::V_SETALLONES:
5667 return Expand2AddrUndef(MIB, get(HasAVX ? X86::VPCMPEQDrr : X86::PCMPEQDrr));
5668 case X86::AVX2_SETALLONES:
5669 return Expand2AddrUndef(MIB, get(X86::VPCMPEQDYrr));
5670 case X86::AVX512_512_SETALLONES: {
5671 unsigned Reg = MIB->getOperand(0).getReg();
5672 MIB->setDesc(get(X86::VPTERNLOGDZrri));
5673 // VPTERNLOGD needs 3 register inputs and an immediate.
5674 // 0xff will return 1s for any input.
5675 MIB.addReg(Reg, RegState::Undef).addReg(Reg, RegState::Undef)
5676 .addReg(Reg, RegState::Undef).addImm(0xff);
5679 case X86::TEST8ri_NOREX:
5680 MI.setDesc(get(X86::TEST8ri));
5682 case X86::MOV32ri64:
5683 MI.setDesc(get(X86::MOV32ri));
5686 // KNL does not recognize dependency-breaking idioms for mask registers,
5687 // so kxnor %k1, %k1, %k2 has a RAW dependence on %k1.
5688 // Using %k0 as the undef input register is a performance heuristic based
5689 // on the assumption that %k0 is used less frequently than the other mask
5690 // registers, since it is not usable as a write mask.
5691 // FIXME: A more advanced approach would be to choose the best input mask
5692 // register based on context.
5694 case X86::KSET0W: return Expand2AddrKreg(MIB, get(X86::KXORWrr), X86::K0);
5695 case X86::KSET0D: return Expand2AddrKreg(MIB, get(X86::KXORDrr), X86::K0);
5696 case X86::KSET0Q: return Expand2AddrKreg(MIB, get(X86::KXORQrr), X86::K0);
5698 case X86::KSET1W: return Expand2AddrKreg(MIB, get(X86::KXNORWrr), X86::K0);
5699 case X86::KSET1D: return Expand2AddrKreg(MIB, get(X86::KXNORDrr), X86::K0);
5700 case X86::KSET1Q: return Expand2AddrKreg(MIB, get(X86::KXNORQrr), X86::K0);
5701 case TargetOpcode::LOAD_STACK_GUARD:
5702 expandLoadStackGuard(MIB, *this);
5708 static void addOperands(MachineInstrBuilder &MIB, ArrayRef<MachineOperand> MOs,
5709 int PtrOffset = 0) {
5710 unsigned NumAddrOps = MOs.size();
5712 if (NumAddrOps < 4) {
5713 // FrameIndex only - add an immediate offset (whether its zero or not).
5714 for (unsigned i = 0; i != NumAddrOps; ++i)
5715 MIB.addOperand(MOs[i]);
5716 addOffset(MIB, PtrOffset);
5718 // General Memory Addressing - we need to add any offset to an existing
5720 assert(MOs.size() == 5 && "Unexpected memory operand list length");
5721 for (unsigned i = 0; i != NumAddrOps; ++i) {
5722 const MachineOperand &MO = MOs[i];
5723 if (i == 3 && PtrOffset != 0) {
5724 MIB.addDisp(MO, PtrOffset);
5732 static MachineInstr *FuseTwoAddrInst(MachineFunction &MF, unsigned Opcode,
5733 ArrayRef<MachineOperand> MOs,
5734 MachineBasicBlock::iterator InsertPt,
5736 const TargetInstrInfo &TII) {
5737 // Create the base instruction with the memory operand as the first part.
5738 // Omit the implicit operands, something BuildMI can't do.
5739 MachineInstr *NewMI =
5740 MF.CreateMachineInstr(TII.get(Opcode), MI.getDebugLoc(), true);
5741 MachineInstrBuilder MIB(MF, NewMI);
5742 addOperands(MIB, MOs);
5744 // Loop over the rest of the ri operands, converting them over.
5745 unsigned NumOps = MI.getDesc().getNumOperands() - 2;
5746 for (unsigned i = 0; i != NumOps; ++i) {
5747 MachineOperand &MO = MI.getOperand(i + 2);
5750 for (unsigned i = NumOps + 2, e = MI.getNumOperands(); i != e; ++i) {
5751 MachineOperand &MO = MI.getOperand(i);
5755 MachineBasicBlock *MBB = InsertPt->getParent();
5756 MBB->insert(InsertPt, NewMI);
5761 static MachineInstr *FuseInst(MachineFunction &MF, unsigned Opcode,
5762 unsigned OpNo, ArrayRef<MachineOperand> MOs,
5763 MachineBasicBlock::iterator InsertPt,
5764 MachineInstr &MI, const TargetInstrInfo &TII,
5765 int PtrOffset = 0) {
5766 // Omit the implicit operands, something BuildMI can't do.
5767 MachineInstr *NewMI =
5768 MF.CreateMachineInstr(TII.get(Opcode), MI.getDebugLoc(), true);
5769 MachineInstrBuilder MIB(MF, NewMI);
5771 for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
5772 MachineOperand &MO = MI.getOperand(i);
5774 assert(MO.isReg() && "Expected to fold into reg operand!");
5775 addOperands(MIB, MOs, PtrOffset);
5781 MachineBasicBlock *MBB = InsertPt->getParent();
5782 MBB->insert(InsertPt, NewMI);
5787 static MachineInstr *MakeM0Inst(const TargetInstrInfo &TII, unsigned Opcode,
5788 ArrayRef<MachineOperand> MOs,
5789 MachineBasicBlock::iterator InsertPt,
5791 MachineInstrBuilder MIB = BuildMI(*InsertPt->getParent(), InsertPt,
5792 MI.getDebugLoc(), TII.get(Opcode));
5793 addOperands(MIB, MOs);
5794 return MIB.addImm(0);
5797 MachineInstr *X86InstrInfo::foldMemoryOperandCustom(
5798 MachineFunction &MF, MachineInstr &MI, unsigned OpNum,
5799 ArrayRef<MachineOperand> MOs, MachineBasicBlock::iterator InsertPt,
5800 unsigned Size, unsigned Align) const {
5801 switch (MI.getOpcode()) {
5802 case X86::INSERTPSrr:
5803 case X86::VINSERTPSrr:
5804 // Attempt to convert the load of inserted vector into a fold load
5805 // of a single float.
5807 unsigned Imm = MI.getOperand(MI.getNumOperands() - 1).getImm();
5808 unsigned ZMask = Imm & 15;
5809 unsigned DstIdx = (Imm >> 4) & 3;
5810 unsigned SrcIdx = (Imm >> 6) & 3;
5812 unsigned RCSize = getRegClass(MI.getDesc(), OpNum, &RI, MF)->getSize();
5813 if (Size <= RCSize && 4 <= Align) {
5814 int PtrOffset = SrcIdx * 4;
5815 unsigned NewImm = (DstIdx << 4) | ZMask;
5816 unsigned NewOpCode =
5817 (MI.getOpcode() == X86::VINSERTPSrr ? X86::VINSERTPSrm
5819 MachineInstr *NewMI =
5820 FuseInst(MF, NewOpCode, OpNum, MOs, InsertPt, MI, *this, PtrOffset);
5821 NewMI->getOperand(NewMI->getNumOperands() - 1).setImm(NewImm);
5826 case X86::MOVHLPSrr:
5827 case X86::VMOVHLPSrr:
5828 // Move the upper 64-bits of the second operand to the lower 64-bits.
5829 // To fold the load, adjust the pointer to the upper and use (V)MOVLPS.
5830 // TODO: In most cases AVX doesn't have a 8-byte alignment requirement.
5832 unsigned RCSize = getRegClass(MI.getDesc(), OpNum, &RI, MF)->getSize();
5833 if (Size <= RCSize && 8 <= Align) {
5834 unsigned NewOpCode =
5835 (MI.getOpcode() == X86::VMOVHLPSrr ? X86::VMOVLPSrm
5837 MachineInstr *NewMI =
5838 FuseInst(MF, NewOpCode, OpNum, MOs, InsertPt, MI, *this, 8);
5848 MachineInstr *X86InstrInfo::foldMemoryOperandImpl(
5849 MachineFunction &MF, MachineInstr &MI, unsigned OpNum,
5850 ArrayRef<MachineOperand> MOs, MachineBasicBlock::iterator InsertPt,
5851 unsigned Size, unsigned Align, bool AllowCommute) const {
5852 const DenseMap<unsigned,
5853 std::pair<uint16_t, uint16_t> > *OpcodeTablePtr = nullptr;
5854 bool isCallRegIndirect = Subtarget.callRegIndirect();
5855 bool isTwoAddrFold = false;
5857 // For CPUs that favor the register form of a call or push,
5858 // do not fold loads into calls or pushes, unless optimizing for size
5860 if (isCallRegIndirect && !MF.getFunction()->optForMinSize() &&
5861 (MI.getOpcode() == X86::CALL32r || MI.getOpcode() == X86::CALL64r ||
5862 MI.getOpcode() == X86::PUSH16r || MI.getOpcode() == X86::PUSH32r ||
5863 MI.getOpcode() == X86::PUSH64r))
5866 unsigned NumOps = MI.getDesc().getNumOperands();
5868 NumOps > 1 && MI.getDesc().getOperandConstraint(1, MCOI::TIED_TO) != -1;
5870 // FIXME: AsmPrinter doesn't know how to handle
5871 // X86II::MO_GOT_ABSOLUTE_ADDRESS after folding.
5872 if (MI.getOpcode() == X86::ADD32ri &&
5873 MI.getOperand(2).getTargetFlags() == X86II::MO_GOT_ABSOLUTE_ADDRESS)
5876 MachineInstr *NewMI = nullptr;
5878 // Attempt to fold any custom cases we have.
5879 if (MachineInstr *CustomMI =
5880 foldMemoryOperandCustom(MF, MI, OpNum, MOs, InsertPt, Size, Align))
5883 // Folding a memory location into the two-address part of a two-address
5884 // instruction is different than folding it other places. It requires
5885 // replacing the *two* registers with the memory location.
5886 if (isTwoAddr && NumOps >= 2 && OpNum < 2 && MI.getOperand(0).isReg() &&
5887 MI.getOperand(1).isReg() &&
5888 MI.getOperand(0).getReg() == MI.getOperand(1).getReg()) {
5889 OpcodeTablePtr = &RegOp2MemOpTable2Addr;
5890 isTwoAddrFold = true;
5891 } else if (OpNum == 0) {
5892 if (MI.getOpcode() == X86::MOV32r0) {
5893 NewMI = MakeM0Inst(*this, X86::MOV32mi, MOs, InsertPt, MI);
5898 OpcodeTablePtr = &RegOp2MemOpTable0;
5899 } else if (OpNum == 1) {
5900 OpcodeTablePtr = &RegOp2MemOpTable1;
5901 } else if (OpNum == 2) {
5902 OpcodeTablePtr = &RegOp2MemOpTable2;
5903 } else if (OpNum == 3) {
5904 OpcodeTablePtr = &RegOp2MemOpTable3;
5905 } else if (OpNum == 4) {
5906 OpcodeTablePtr = &RegOp2MemOpTable4;
5909 // If table selected...
5910 if (OpcodeTablePtr) {
5911 // Find the Opcode to fuse
5912 auto I = OpcodeTablePtr->find(MI.getOpcode());
5913 if (I != OpcodeTablePtr->end()) {
5914 unsigned Opcode = I->second.first;
5915 unsigned MinAlign = (I->second.second & TB_ALIGN_MASK) >> TB_ALIGN_SHIFT;
5916 if (Align < MinAlign)
5918 bool NarrowToMOV32rm = false;
5920 unsigned RCSize = getRegClass(MI.getDesc(), OpNum, &RI, MF)->getSize();
5921 if (Size < RCSize) {
5922 // Check if it's safe to fold the load. If the size of the object is
5923 // narrower than the load width, then it's not.
5924 if (Opcode != X86::MOV64rm || RCSize != 8 || Size != 4)
5926 // If this is a 64-bit load, but the spill slot is 32, then we can do
5927 // a 32-bit load which is implicitly zero-extended. This likely is
5928 // due to live interval analysis remat'ing a load from stack slot.
5929 if (MI.getOperand(0).getSubReg() || MI.getOperand(1).getSubReg())
5931 Opcode = X86::MOV32rm;
5932 NarrowToMOV32rm = true;
5937 NewMI = FuseTwoAddrInst(MF, Opcode, MOs, InsertPt, MI, *this);
5939 NewMI = FuseInst(MF, Opcode, OpNum, MOs, InsertPt, MI, *this);
5941 if (NarrowToMOV32rm) {
5942 // If this is the special case where we use a MOV32rm to load a 32-bit
5943 // value and zero-extend the top bits. Change the destination register
5945 unsigned DstReg = NewMI->getOperand(0).getReg();
5946 if (TargetRegisterInfo::isPhysicalRegister(DstReg))
5947 NewMI->getOperand(0).setReg(RI.getSubReg(DstReg, X86::sub_32bit));
5949 NewMI->getOperand(0).setSubReg(X86::sub_32bit);
5955 // If the instruction and target operand are commutable, commute the
5956 // instruction and try again.
5958 unsigned CommuteOpIdx1 = OpNum, CommuteOpIdx2 = CommuteAnyOperandIndex;
5959 if (findCommutedOpIndices(MI, CommuteOpIdx1, CommuteOpIdx2)) {
5960 bool HasDef = MI.getDesc().getNumDefs();
5961 unsigned Reg0 = HasDef ? MI.getOperand(0).getReg() : 0;
5962 unsigned Reg1 = MI.getOperand(CommuteOpIdx1).getReg();
5963 unsigned Reg2 = MI.getOperand(CommuteOpIdx2).getReg();
5965 0 == MI.getDesc().getOperandConstraint(CommuteOpIdx1, MCOI::TIED_TO);
5967 0 == MI.getDesc().getOperandConstraint(CommuteOpIdx2, MCOI::TIED_TO);
5969 // If either of the commutable operands are tied to the destination
5970 // then we can not commute + fold.
5971 if ((HasDef && Reg0 == Reg1 && Tied1) ||
5972 (HasDef && Reg0 == Reg2 && Tied2))
5975 MachineInstr *CommutedMI =
5976 commuteInstruction(MI, false, CommuteOpIdx1, CommuteOpIdx2);
5978 // Unable to commute.
5981 if (CommutedMI != &MI) {
5982 // New instruction. We can't fold from this.
5983 CommutedMI->eraseFromParent();
5987 // Attempt to fold with the commuted version of the instruction.
5988 NewMI = foldMemoryOperandImpl(MF, MI, CommuteOpIdx2, MOs, InsertPt,
5989 Size, Align, /*AllowCommute=*/false);
5993 // Folding failed again - undo the commute before returning.
5994 MachineInstr *UncommutedMI =
5995 commuteInstruction(MI, false, CommuteOpIdx1, CommuteOpIdx2);
5996 if (!UncommutedMI) {
5997 // Unable to commute.
6000 if (UncommutedMI != &MI) {
6001 // New instruction. It doesn't need to be kept.
6002 UncommutedMI->eraseFromParent();
6006 // Return here to prevent duplicate fuse failure report.
6012 if (PrintFailedFusing && !MI.isCopy())
6013 dbgs() << "We failed to fuse operand " << OpNum << " in " << MI;
6017 /// Return true for all instructions that only update
6018 /// the first 32 or 64-bits of the destination register and leave the rest
6019 /// unmodified. This can be used to avoid folding loads if the instructions
6020 /// only update part of the destination register, and the non-updated part is
6021 /// not needed. e.g. cvtss2sd, sqrtss. Unfolding the load from these
6022 /// instructions breaks the partial register dependency and it can improve
6023 /// performance. e.g.:
6025 /// movss (%rdi), %xmm0
6026 /// cvtss2sd %xmm0, %xmm0
6029 /// cvtss2sd (%rdi), %xmm0
6031 /// FIXME: This should be turned into a TSFlags.
6033 static bool hasPartialRegUpdate(unsigned Opcode) {
6035 case X86::CVTSI2SSrr:
6036 case X86::CVTSI2SSrm:
6037 case X86::CVTSI2SS64rr:
6038 case X86::CVTSI2SS64rm:
6039 case X86::CVTSI2SDrr:
6040 case X86::CVTSI2SDrm:
6041 case X86::CVTSI2SD64rr:
6042 case X86::CVTSI2SD64rm:
6043 case X86::CVTSD2SSrr:
6044 case X86::CVTSD2SSrm:
6045 case X86::Int_CVTSD2SSrr:
6046 case X86::Int_CVTSD2SSrm:
6047 case X86::CVTSS2SDrr:
6048 case X86::CVTSS2SDrm:
6049 case X86::Int_CVTSS2SDrr:
6050 case X86::Int_CVTSS2SDrm:
6057 case X86::RCPSSr_Int:
6058 case X86::RCPSSm_Int:
6061 case X86::ROUNDSDr_Int:
6064 case X86::ROUNDSSr_Int:
6067 case X86::RSQRTSSr_Int:
6068 case X86::RSQRTSSm_Int:
6071 case X86::SQRTSSr_Int:
6072 case X86::SQRTSSm_Int:
6075 case X86::SQRTSDr_Int:
6076 case X86::SQRTSDm_Int:
6083 /// Inform the ExeDepsFix pass how many idle
6084 /// instructions we would like before a partial register update.
6085 unsigned X86InstrInfo::getPartialRegUpdateClearance(
6086 const MachineInstr &MI, unsigned OpNum,
6087 const TargetRegisterInfo *TRI) const {
6088 if (OpNum != 0 || !hasPartialRegUpdate(MI.getOpcode()))
6091 // If MI is marked as reading Reg, the partial register update is wanted.
6092 const MachineOperand &MO = MI.getOperand(0);
6093 unsigned Reg = MO.getReg();
6094 if (TargetRegisterInfo::isVirtualRegister(Reg)) {
6095 if (MO.readsReg() || MI.readsVirtualRegister(Reg))
6098 if (MI.readsRegister(Reg, TRI))
6102 // If any instructions in the clearance range are reading Reg, insert a
6103 // dependency breaking instruction, which is inexpensive and is likely to
6104 // be hidden in other instruction's cycles.
6105 return PartialRegUpdateClearance;
6108 // Return true for any instruction the copies the high bits of the first source
6109 // operand into the unused high bits of the destination operand.
6110 static bool hasUndefRegUpdate(unsigned Opcode) {
6112 case X86::VCVTSI2SSrr:
6113 case X86::VCVTSI2SSrm:
6114 case X86::Int_VCVTSI2SSrr:
6115 case X86::Int_VCVTSI2SSrm:
6116 case X86::VCVTSI2SS64rr:
6117 case X86::VCVTSI2SS64rm:
6118 case X86::Int_VCVTSI2SS64rr:
6119 case X86::Int_VCVTSI2SS64rm:
6120 case X86::VCVTSI2SDrr:
6121 case X86::VCVTSI2SDrm:
6122 case X86::Int_VCVTSI2SDrr:
6123 case X86::Int_VCVTSI2SDrm:
6124 case X86::VCVTSI2SD64rr:
6125 case X86::VCVTSI2SD64rm:
6126 case X86::Int_VCVTSI2SD64rr:
6127 case X86::Int_VCVTSI2SD64rm:
6128 case X86::VCVTSD2SSrr:
6129 case X86::VCVTSD2SSrm:
6130 case X86::Int_VCVTSD2SSrr:
6131 case X86::Int_VCVTSD2SSrm:
6132 case X86::VCVTSS2SDrr:
6133 case X86::VCVTSS2SDrm:
6134 case X86::Int_VCVTSS2SDrr:
6135 case X86::Int_VCVTSS2SDrm:
6138 case X86::VRCPSSm_Int:
6139 case X86::VROUNDSDr:
6140 case X86::VROUNDSDm:
6141 case X86::VROUNDSDr_Int:
6142 case X86::VROUNDSSr:
6143 case X86::VROUNDSSm:
6144 case X86::VROUNDSSr_Int:
6145 case X86::VRSQRTSSr:
6146 case X86::VRSQRTSSm:
6147 case X86::VRSQRTSSm_Int:
6150 case X86::VSQRTSSm_Int:
6153 case X86::VSQRTSDm_Int:
6155 case X86::VCVTSD2SSZrr:
6156 case X86::VCVTSD2SSZrm:
6157 case X86::VCVTSS2SDZrr:
6158 case X86::VCVTSS2SDZrm:
6165 /// Inform the ExeDepsFix pass how many idle instructions we would like before
6166 /// certain undef register reads.
6168 /// This catches the VCVTSI2SD family of instructions:
6170 /// vcvtsi2sdq %rax, %xmm0<undef>, %xmm14
6172 /// We should to be careful *not* to catch VXOR idioms which are presumably
6173 /// handled specially in the pipeline:
6175 /// vxorps %xmm1<undef>, %xmm1<undef>, %xmm1
6177 /// Like getPartialRegUpdateClearance, this makes a strong assumption that the
6178 /// high bits that are passed-through are not live.
6180 X86InstrInfo::getUndefRegClearance(const MachineInstr &MI, unsigned &OpNum,
6181 const TargetRegisterInfo *TRI) const {
6182 if (!hasUndefRegUpdate(MI.getOpcode()))
6185 // Set the OpNum parameter to the first source operand.
6188 const MachineOperand &MO = MI.getOperand(OpNum);
6189 if (MO.isUndef() && TargetRegisterInfo::isPhysicalRegister(MO.getReg())) {
6190 return UndefRegClearance;
6195 void X86InstrInfo::breakPartialRegDependency(
6196 MachineInstr &MI, unsigned OpNum, const TargetRegisterInfo *TRI) const {
6197 unsigned Reg = MI.getOperand(OpNum).getReg();
6198 // If MI kills this register, the false dependence is already broken.
6199 if (MI.killsRegister(Reg, TRI))
6202 if (X86::VR128RegClass.contains(Reg)) {
6203 // These instructions are all floating point domain, so xorps is the best
6205 unsigned Opc = Subtarget.hasAVX() ? X86::VXORPSrr : X86::XORPSrr;
6206 BuildMI(*MI.getParent(), MI, MI.getDebugLoc(), get(Opc), Reg)
6207 .addReg(Reg, RegState::Undef)
6208 .addReg(Reg, RegState::Undef);
6209 MI.addRegisterKilled(Reg, TRI, true);
6210 } else if (X86::VR256RegClass.contains(Reg)) {
6211 // Use vxorps to clear the full ymm register.
6212 // It wants to read and write the xmm sub-register.
6213 unsigned XReg = TRI->getSubReg(Reg, X86::sub_xmm);
6214 BuildMI(*MI.getParent(), MI, MI.getDebugLoc(), get(X86::VXORPSrr), XReg)
6215 .addReg(XReg, RegState::Undef)
6216 .addReg(XReg, RegState::Undef)
6217 .addReg(Reg, RegState::ImplicitDefine);
6218 MI.addRegisterKilled(Reg, TRI, true);
6223 X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, MachineInstr &MI,
6224 ArrayRef<unsigned> Ops,
6225 MachineBasicBlock::iterator InsertPt,
6226 int FrameIndex, LiveIntervals *LIS) const {
6227 // Check switch flag
6231 // Unless optimizing for size, don't fold to avoid partial
6232 // register update stalls
6233 if (!MF.getFunction()->optForSize() && hasPartialRegUpdate(MI.getOpcode()))
6236 const MachineFrameInfo *MFI = MF.getFrameInfo();
6237 unsigned Size = MFI->getObjectSize(FrameIndex);
6238 unsigned Alignment = MFI->getObjectAlignment(FrameIndex);
6239 // If the function stack isn't realigned we don't want to fold instructions
6240 // that need increased alignment.
6241 if (!RI.needsStackRealignment(MF))
6243 std::min(Alignment, Subtarget.getFrameLowering()->getStackAlignment());
6244 if (Ops.size() == 2 && Ops[0] == 0 && Ops[1] == 1) {
6245 unsigned NewOpc = 0;
6246 unsigned RCSize = 0;
6247 switch (MI.getOpcode()) {
6248 default: return nullptr;
6249 case X86::TEST8rr: NewOpc = X86::CMP8ri; RCSize = 1; break;
6250 case X86::TEST16rr: NewOpc = X86::CMP16ri8; RCSize = 2; break;
6251 case X86::TEST32rr: NewOpc = X86::CMP32ri8; RCSize = 4; break;
6252 case X86::TEST64rr: NewOpc = X86::CMP64ri8; RCSize = 8; break;
6254 // Check if it's safe to fold the load. If the size of the object is
6255 // narrower than the load width, then it's not.
6258 // Change to CMPXXri r, 0 first.
6259 MI.setDesc(get(NewOpc));
6260 MI.getOperand(1).ChangeToImmediate(0);
6261 } else if (Ops.size() != 1)
6264 return foldMemoryOperandImpl(MF, MI, Ops[0],
6265 MachineOperand::CreateFI(FrameIndex), InsertPt,
6266 Size, Alignment, /*AllowCommute=*/true);
6269 /// Check if \p LoadMI is a partial register load that we can't fold into \p MI
6270 /// because the latter uses contents that wouldn't be defined in the folded
6271 /// version. For instance, this transformation isn't legal:
6272 /// movss (%rdi), %xmm0
6273 /// addps %xmm0, %xmm0
6275 /// addps (%rdi), %xmm0
6277 /// But this one is:
6278 /// movss (%rdi), %xmm0
6279 /// addss %xmm0, %xmm0
6281 /// addss (%rdi), %xmm0
6283 static bool isNonFoldablePartialRegisterLoad(const MachineInstr &LoadMI,
6284 const MachineInstr &UserMI,
6285 const MachineFunction &MF) {
6286 unsigned Opc = LoadMI.getOpcode();
6287 unsigned UserOpc = UserMI.getOpcode();
6289 MF.getRegInfo().getRegClass(LoadMI.getOperand(0).getReg())->getSize();
6291 if ((Opc == X86::MOVSSrm || Opc == X86::VMOVSSrm || Opc == X86::VMOVSSZrm) &&
6293 // These instructions only load 32 bits, we can't fold them if the
6294 // destination register is wider than 32 bits (4 bytes), and its user
6295 // instruction isn't scalar (SS).
6297 case X86::ADDSSrr_Int: case X86::VADDSSrr_Int: case X86::VADDSSZrr_Int:
6298 case X86::DIVSSrr_Int: case X86::VDIVSSrr_Int: case X86::VDIVSSZrr_Int:
6299 case X86::MULSSrr_Int: case X86::VMULSSrr_Int: case X86::VMULSSZrr_Int:
6300 case X86::SUBSSrr_Int: case X86::VSUBSSrr_Int: case X86::VSUBSSZrr_Int:
6301 case X86::VFMADDSSr132r_Int: case X86::VFNMADDSSr132r_Int:
6302 case X86::VFMADDSSr213r_Int: case X86::VFNMADDSSr213r_Int:
6303 case X86::VFMADDSSr231r_Int: case X86::VFNMADDSSr231r_Int:
6304 case X86::VFMSUBSSr132r_Int: case X86::VFNMSUBSSr132r_Int:
6305 case X86::VFMSUBSSr213r_Int: case X86::VFNMSUBSSr213r_Int:
6306 case X86::VFMSUBSSr231r_Int: case X86::VFNMSUBSSr231r_Int:
6313 if ((Opc == X86::MOVSDrm || Opc == X86::VMOVSDrm || Opc == X86::VMOVSDZrm) &&
6315 // These instructions only load 64 bits, we can't fold them if the
6316 // destination register is wider than 64 bits (8 bytes), and its user
6317 // instruction isn't scalar (SD).
6319 case X86::ADDSDrr_Int: case X86::VADDSDrr_Int: case X86::VADDSDZrr_Int:
6320 case X86::DIVSDrr_Int: case X86::VDIVSDrr_Int: case X86::VDIVSDZrr_Int:
6321 case X86::MULSDrr_Int: case X86::VMULSDrr_Int: case X86::VMULSDZrr_Int:
6322 case X86::SUBSDrr_Int: case X86::VSUBSDrr_Int: case X86::VSUBSDZrr_Int:
6323 case X86::VFMADDSDr132r_Int: case X86::VFNMADDSDr132r_Int:
6324 case X86::VFMADDSDr213r_Int: case X86::VFNMADDSDr213r_Int:
6325 case X86::VFMADDSDr231r_Int: case X86::VFNMADDSDr231r_Int:
6326 case X86::VFMSUBSDr132r_Int: case X86::VFNMSUBSDr132r_Int:
6327 case X86::VFMSUBSDr213r_Int: case X86::VFNMSUBSDr213r_Int:
6328 case X86::VFMSUBSDr231r_Int: case X86::VFNMSUBSDr231r_Int:
6338 MachineInstr *X86InstrInfo::foldMemoryOperandImpl(
6339 MachineFunction &MF, MachineInstr &MI, ArrayRef<unsigned> Ops,
6340 MachineBasicBlock::iterator InsertPt, MachineInstr &LoadMI,
6341 LiveIntervals *LIS) const {
6342 // If loading from a FrameIndex, fold directly from the FrameIndex.
6343 unsigned NumOps = LoadMI.getDesc().getNumOperands();
6345 if (isLoadFromStackSlot(LoadMI, FrameIndex)) {
6346 if (isNonFoldablePartialRegisterLoad(LoadMI, MI, MF))
6348 return foldMemoryOperandImpl(MF, MI, Ops, InsertPt, FrameIndex, LIS);
6351 // Check switch flag
6352 if (NoFusing) return nullptr;
6354 // Avoid partial register update stalls unless optimizing for size.
6355 if (!MF.getFunction()->optForSize() && hasPartialRegUpdate(MI.getOpcode()))
6358 // Determine the alignment of the load.
6359 unsigned Alignment = 0;
6360 if (LoadMI.hasOneMemOperand())
6361 Alignment = (*LoadMI.memoperands_begin())->getAlignment();
6363 switch (LoadMI.getOpcode()) {
6364 case X86::AVX512_512_SET0:
6365 case X86::AVX512_512_SETALLONES:
6368 case X86::AVX2_SETALLONES:
6370 case X86::AVX512_256_SET0:
6374 case X86::V_SETALLONES:
6375 case X86::AVX512_128_SET0:
6387 if (Ops.size() == 2 && Ops[0] == 0 && Ops[1] == 1) {
6388 unsigned NewOpc = 0;
6389 switch (MI.getOpcode()) {
6390 default: return nullptr;
6391 case X86::TEST8rr: NewOpc = X86::CMP8ri; break;
6392 case X86::TEST16rr: NewOpc = X86::CMP16ri8; break;
6393 case X86::TEST32rr: NewOpc = X86::CMP32ri8; break;
6394 case X86::TEST64rr: NewOpc = X86::CMP64ri8; break;
6396 // Change to CMPXXri r, 0 first.
6397 MI.setDesc(get(NewOpc));
6398 MI.getOperand(1).ChangeToImmediate(0);
6399 } else if (Ops.size() != 1)
6402 // Make sure the subregisters match.
6403 // Otherwise we risk changing the size of the load.
6404 if (LoadMI.getOperand(0).getSubReg() != MI.getOperand(Ops[0]).getSubReg())
6407 SmallVector<MachineOperand,X86::AddrNumOperands> MOs;
6408 switch (LoadMI.getOpcode()) {
6410 case X86::V_SETALLONES:
6411 case X86::AVX2_SETALLONES:
6413 case X86::AVX512_128_SET0:
6414 case X86::AVX512_256_SET0:
6415 case X86::AVX512_512_SET0:
6416 case X86::AVX512_512_SETALLONES:
6418 case X86::FsFLD0SS: {
6419 // Folding a V_SET0 or V_SETALLONES as a load, to ease register pressure.
6420 // Create a constant-pool entry and operands to load from it.
6422 // Medium and large mode can't fold loads this way.
6423 if (MF.getTarget().getCodeModel() != CodeModel::Small &&
6424 MF.getTarget().getCodeModel() != CodeModel::Kernel)
6427 // x86-32 PIC requires a PIC base register for constant pools.
6428 unsigned PICBase = 0;
6429 if (MF.getTarget().isPositionIndependent()) {
6430 if (Subtarget.is64Bit())
6433 // FIXME: PICBase = getGlobalBaseReg(&MF);
6434 // This doesn't work for several reasons.
6435 // 1. GlobalBaseReg may have been spilled.
6436 // 2. It may not be live at MI.
6440 // Create a constant-pool entry.
6441 MachineConstantPool &MCP = *MF.getConstantPool();
6443 unsigned Opc = LoadMI.getOpcode();
6444 if (Opc == X86::FsFLD0SS)
6445 Ty = Type::getFloatTy(MF.getFunction()->getContext());
6446 else if (Opc == X86::FsFLD0SD)
6447 Ty = Type::getDoubleTy(MF.getFunction()->getContext());
6448 else if (Opc == X86::AVX512_512_SET0 || Opc == X86::AVX512_512_SETALLONES)
6449 Ty = VectorType::get(Type::getInt32Ty(MF.getFunction()->getContext()),16);
6450 else if (Opc == X86::AVX2_SETALLONES || Opc == X86::AVX_SET0 ||
6451 Opc == X86::AVX512_256_SET0)
6452 Ty = VectorType::get(Type::getInt32Ty(MF.getFunction()->getContext()), 8);
6454 Ty = VectorType::get(Type::getInt32Ty(MF.getFunction()->getContext()), 4);
6456 bool IsAllOnes = (Opc == X86::V_SETALLONES || Opc == X86::AVX2_SETALLONES ||
6457 Opc == X86::AVX512_512_SETALLONES);
6458 const Constant *C = IsAllOnes ? Constant::getAllOnesValue(Ty) :
6459 Constant::getNullValue(Ty);
6460 unsigned CPI = MCP.getConstantPoolIndex(C, Alignment);
6462 // Create operands to load from the constant pool entry.
6463 MOs.push_back(MachineOperand::CreateReg(PICBase, false));
6464 MOs.push_back(MachineOperand::CreateImm(1));
6465 MOs.push_back(MachineOperand::CreateReg(0, false));
6466 MOs.push_back(MachineOperand::CreateCPI(CPI, 0));
6467 MOs.push_back(MachineOperand::CreateReg(0, false));
6471 if (isNonFoldablePartialRegisterLoad(LoadMI, MI, MF))
6474 // Folding a normal load. Just copy the load's address operands.
6475 MOs.append(LoadMI.operands_begin() + NumOps - X86::AddrNumOperands,
6476 LoadMI.operands_begin() + NumOps);
6480 return foldMemoryOperandImpl(MF, MI, Ops[0], MOs, InsertPt,
6481 /*Size=*/0, Alignment, /*AllowCommute=*/true);
6484 bool X86InstrInfo::unfoldMemoryOperand(
6485 MachineFunction &MF, MachineInstr &MI, unsigned Reg, bool UnfoldLoad,
6486 bool UnfoldStore, SmallVectorImpl<MachineInstr *> &NewMIs) const {
6487 auto I = MemOp2RegOpTable.find(MI.getOpcode());
6488 if (I == MemOp2RegOpTable.end())
6490 unsigned Opc = I->second.first;
6491 unsigned Index = I->second.second & TB_INDEX_MASK;
6492 bool FoldedLoad = I->second.second & TB_FOLDED_LOAD;
6493 bool FoldedStore = I->second.second & TB_FOLDED_STORE;
6494 if (UnfoldLoad && !FoldedLoad)
6496 UnfoldLoad &= FoldedLoad;
6497 if (UnfoldStore && !FoldedStore)
6499 UnfoldStore &= FoldedStore;
6501 const MCInstrDesc &MCID = get(Opc);
6502 const TargetRegisterClass *RC = getRegClass(MCID, Index, &RI, MF);
6503 // TODO: Check if 32-byte or greater accesses are slow too?
6504 if (!MI.hasOneMemOperand() && RC == &X86::VR128RegClass &&
6505 Subtarget.isUnalignedMem16Slow())
6506 // Without memoperands, loadRegFromAddr and storeRegToStackSlot will
6507 // conservatively assume the address is unaligned. That's bad for
6510 SmallVector<MachineOperand, X86::AddrNumOperands> AddrOps;
6511 SmallVector<MachineOperand,2> BeforeOps;
6512 SmallVector<MachineOperand,2> AfterOps;
6513 SmallVector<MachineOperand,4> ImpOps;
6514 for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
6515 MachineOperand &Op = MI.getOperand(i);
6516 if (i >= Index && i < Index + X86::AddrNumOperands)
6517 AddrOps.push_back(Op);
6518 else if (Op.isReg() && Op.isImplicit())
6519 ImpOps.push_back(Op);
6521 BeforeOps.push_back(Op);
6523 AfterOps.push_back(Op);
6526 // Emit the load instruction.
6528 std::pair<MachineInstr::mmo_iterator, MachineInstr::mmo_iterator> MMOs =
6529 MF.extractLoadMemRefs(MI.memoperands_begin(), MI.memoperands_end());
6530 loadRegFromAddr(MF, Reg, AddrOps, RC, MMOs.first, MMOs.second, NewMIs);
6532 // Address operands cannot be marked isKill.
6533 for (unsigned i = 1; i != 1 + X86::AddrNumOperands; ++i) {
6534 MachineOperand &MO = NewMIs[0]->getOperand(i);
6536 MO.setIsKill(false);
6541 // Emit the data processing instruction.
6542 MachineInstr *DataMI = MF.CreateMachineInstr(MCID, MI.getDebugLoc(), true);
6543 MachineInstrBuilder MIB(MF, DataMI);
6546 MIB.addReg(Reg, RegState::Define);
6547 for (MachineOperand &BeforeOp : BeforeOps)
6548 MIB.addOperand(BeforeOp);
6551 for (MachineOperand &AfterOp : AfterOps)
6552 MIB.addOperand(AfterOp);
6553 for (MachineOperand &ImpOp : ImpOps) {
6554 MIB.addReg(ImpOp.getReg(),
6555 getDefRegState(ImpOp.isDef()) |
6556 RegState::Implicit |
6557 getKillRegState(ImpOp.isKill()) |
6558 getDeadRegState(ImpOp.isDead()) |
6559 getUndefRegState(ImpOp.isUndef()));
6561 // Change CMP32ri r, 0 back to TEST32rr r, r, etc.
6562 switch (DataMI->getOpcode()) {
6564 case X86::CMP64ri32:
6571 MachineOperand &MO0 = DataMI->getOperand(0);
6572 MachineOperand &MO1 = DataMI->getOperand(1);
6573 if (MO1.getImm() == 0) {
6575 switch (DataMI->getOpcode()) {
6576 default: llvm_unreachable("Unreachable!");
6578 case X86::CMP64ri32: NewOpc = X86::TEST64rr; break;
6580 case X86::CMP32ri: NewOpc = X86::TEST32rr; break;
6582 case X86::CMP16ri: NewOpc = X86::TEST16rr; break;
6583 case X86::CMP8ri: NewOpc = X86::TEST8rr; break;
6585 DataMI->setDesc(get(NewOpc));
6586 MO1.ChangeToRegister(MO0.getReg(), false);
6590 NewMIs.push_back(DataMI);
6592 // Emit the store instruction.
6594 const TargetRegisterClass *DstRC = getRegClass(MCID, 0, &RI, MF);
6595 std::pair<MachineInstr::mmo_iterator, MachineInstr::mmo_iterator> MMOs =
6596 MF.extractStoreMemRefs(MI.memoperands_begin(), MI.memoperands_end());
6597 storeRegToAddr(MF, Reg, true, AddrOps, DstRC, MMOs.first, MMOs.second, NewMIs);
6604 X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
6605 SmallVectorImpl<SDNode*> &NewNodes) const {
6606 if (!N->isMachineOpcode())
6609 auto I = MemOp2RegOpTable.find(N->getMachineOpcode());
6610 if (I == MemOp2RegOpTable.end())
6612 unsigned Opc = I->second.first;
6613 unsigned Index = I->second.second & TB_INDEX_MASK;
6614 bool FoldedLoad = I->second.second & TB_FOLDED_LOAD;
6615 bool FoldedStore = I->second.second & TB_FOLDED_STORE;
6616 const MCInstrDesc &MCID = get(Opc);
6617 MachineFunction &MF = DAG.getMachineFunction();
6618 const TargetRegisterClass *RC = getRegClass(MCID, Index, &RI, MF);
6619 unsigned NumDefs = MCID.NumDefs;
6620 std::vector<SDValue> AddrOps;
6621 std::vector<SDValue> BeforeOps;
6622 std::vector<SDValue> AfterOps;
6624 unsigned NumOps = N->getNumOperands();
6625 for (unsigned i = 0; i != NumOps-1; ++i) {
6626 SDValue Op = N->getOperand(i);
6627 if (i >= Index-NumDefs && i < Index-NumDefs + X86::AddrNumOperands)
6628 AddrOps.push_back(Op);
6629 else if (i < Index-NumDefs)
6630 BeforeOps.push_back(Op);
6631 else if (i > Index-NumDefs)
6632 AfterOps.push_back(Op);
6634 SDValue Chain = N->getOperand(NumOps-1);
6635 AddrOps.push_back(Chain);
6637 // Emit the load instruction.
6638 SDNode *Load = nullptr;
6640 EVT VT = *RC->vt_begin();
6641 std::pair<MachineInstr::mmo_iterator,
6642 MachineInstr::mmo_iterator> MMOs =
6643 MF.extractLoadMemRefs(cast<MachineSDNode>(N)->memoperands_begin(),
6644 cast<MachineSDNode>(N)->memoperands_end());
6645 if (!(*MMOs.first) &&
6646 RC == &X86::VR128RegClass &&
6647 Subtarget.isUnalignedMem16Slow())
6648 // Do not introduce a slow unaligned load.
6650 // FIXME: If a VR128 can have size 32, we should be checking if a 32-byte
6651 // memory access is slow above.
6652 unsigned Alignment = RC->getSize() == 32 ? 32 : 16;
6653 bool isAligned = (*MMOs.first) &&
6654 (*MMOs.first)->getAlignment() >= Alignment;
6655 Load = DAG.getMachineNode(getLoadRegOpcode(0, RC, isAligned, Subtarget), dl,
6656 VT, MVT::Other, AddrOps);
6657 NewNodes.push_back(Load);
6659 // Preserve memory reference information.
6660 cast<MachineSDNode>(Load)->setMemRefs(MMOs.first, MMOs.second);
6663 // Emit the data processing instruction.
6664 std::vector<EVT> VTs;
6665 const TargetRegisterClass *DstRC = nullptr;
6666 if (MCID.getNumDefs() > 0) {
6667 DstRC = getRegClass(MCID, 0, &RI, MF);
6668 VTs.push_back(*DstRC->vt_begin());
6670 for (unsigned i = 0, e = N->getNumValues(); i != e; ++i) {
6671 EVT VT = N->getValueType(i);
6672 if (VT != MVT::Other && i >= (unsigned)MCID.getNumDefs())
6676 BeforeOps.push_back(SDValue(Load, 0));
6677 BeforeOps.insert(BeforeOps.end(), AfterOps.begin(), AfterOps.end());
6678 SDNode *NewNode= DAG.getMachineNode(Opc, dl, VTs, BeforeOps);
6679 NewNodes.push_back(NewNode);
6681 // Emit the store instruction.
6684 AddrOps.push_back(SDValue(NewNode, 0));
6685 AddrOps.push_back(Chain);
6686 std::pair<MachineInstr::mmo_iterator,
6687 MachineInstr::mmo_iterator> MMOs =
6688 MF.extractStoreMemRefs(cast<MachineSDNode>(N)->memoperands_begin(),
6689 cast<MachineSDNode>(N)->memoperands_end());
6690 if (!(*MMOs.first) &&
6691 RC == &X86::VR128RegClass &&
6692 Subtarget.isUnalignedMem16Slow())
6693 // Do not introduce a slow unaligned store.
6695 // FIXME: If a VR128 can have size 32, we should be checking if a 32-byte
6696 // memory access is slow above.
6697 unsigned Alignment = RC->getSize() == 32 ? 32 : 16;
6698 bool isAligned = (*MMOs.first) &&
6699 (*MMOs.first)->getAlignment() >= Alignment;
6701 DAG.getMachineNode(getStoreRegOpcode(0, DstRC, isAligned, Subtarget),
6702 dl, MVT::Other, AddrOps);
6703 NewNodes.push_back(Store);
6705 // Preserve memory reference information.
6706 cast<MachineSDNode>(Store)->setMemRefs(MMOs.first, MMOs.second);
6712 unsigned X86InstrInfo::getOpcodeAfterMemoryUnfold(unsigned Opc,
6713 bool UnfoldLoad, bool UnfoldStore,
6714 unsigned *LoadRegIndex) const {
6715 auto I = MemOp2RegOpTable.find(Opc);
6716 if (I == MemOp2RegOpTable.end())
6718 bool FoldedLoad = I->second.second & TB_FOLDED_LOAD;
6719 bool FoldedStore = I->second.second & TB_FOLDED_STORE;
6720 if (UnfoldLoad && !FoldedLoad)
6722 if (UnfoldStore && !FoldedStore)
6725 *LoadRegIndex = I->second.second & TB_INDEX_MASK;
6726 return I->second.first;
6730 X86InstrInfo::areLoadsFromSameBasePtr(SDNode *Load1, SDNode *Load2,
6731 int64_t &Offset1, int64_t &Offset2) const {
6732 if (!Load1->isMachineOpcode() || !Load2->isMachineOpcode())
6734 unsigned Opc1 = Load1->getMachineOpcode();
6735 unsigned Opc2 = Load2->getMachineOpcode();
6737 default: return false;
6747 case X86::MMX_MOVD64rm:
6748 case X86::MMX_MOVQ64rm:
6749 case X86::FsMOVAPSrm:
6750 case X86::FsMOVAPDrm:
6757 // AVX load instructions
6760 case X86::FsVMOVAPSrm:
6761 case X86::FsVMOVAPDrm:
6762 case X86::VMOVAPSrm:
6763 case X86::VMOVUPSrm:
6764 case X86::VMOVAPDrm:
6765 case X86::VMOVUPDrm:
6766 case X86::VMOVDQArm:
6767 case X86::VMOVDQUrm:
6768 case X86::VMOVAPSYrm:
6769 case X86::VMOVUPSYrm:
6770 case X86::VMOVAPDYrm:
6771 case X86::VMOVUPDYrm:
6772 case X86::VMOVDQAYrm:
6773 case X86::VMOVDQUYrm:
6774 // AVX512 load instructions
6775 case X86::VMOVSSZrm:
6776 case X86::VMOVSDZrm:
6777 case X86::VMOVAPSZ128rm:
6778 case X86::VMOVUPSZ128rm:
6779 case X86::VMOVAPDZ128rm:
6780 case X86::VMOVUPDZ128rm:
6781 case X86::VMOVDQU8Z128rm:
6782 case X86::VMOVDQU16Z128rm:
6783 case X86::VMOVDQA32Z128rm:
6784 case X86::VMOVDQU32Z128rm:
6785 case X86::VMOVDQA64Z128rm:
6786 case X86::VMOVDQU64Z128rm:
6787 case X86::VMOVAPSZ256rm:
6788 case X86::VMOVUPSZ256rm:
6789 case X86::VMOVAPDZ256rm:
6790 case X86::VMOVUPDZ256rm:
6791 case X86::VMOVDQU8Z256rm:
6792 case X86::VMOVDQU16Z256rm:
6793 case X86::VMOVDQA32Z256rm:
6794 case X86::VMOVDQU32Z256rm:
6795 case X86::VMOVDQA64Z256rm:
6796 case X86::VMOVDQU64Z256rm:
6797 case X86::VMOVAPSZrm:
6798 case X86::VMOVUPSZrm:
6799 case X86::VMOVAPDZrm:
6800 case X86::VMOVUPDZrm:
6801 case X86::VMOVDQU8Zrm:
6802 case X86::VMOVDQU16Zrm:
6803 case X86::VMOVDQA32Zrm:
6804 case X86::VMOVDQU32Zrm:
6805 case X86::VMOVDQA64Zrm:
6806 case X86::VMOVDQU64Zrm:
6814 default: return false;
6824 case X86::MMX_MOVD64rm:
6825 case X86::MMX_MOVQ64rm:
6826 case X86::FsMOVAPSrm:
6827 case X86::FsMOVAPDrm:
6834 // AVX load instructions
6837 case X86::FsVMOVAPSrm:
6838 case X86::FsVMOVAPDrm:
6839 case X86::VMOVAPSrm:
6840 case X86::VMOVUPSrm:
6841 case X86::VMOVAPDrm:
6842 case X86::VMOVUPDrm:
6843 case X86::VMOVDQArm:
6844 case X86::VMOVDQUrm:
6845 case X86::VMOVAPSYrm:
6846 case X86::VMOVUPSYrm:
6847 case X86::VMOVAPDYrm:
6848 case X86::VMOVUPDYrm:
6849 case X86::VMOVDQAYrm:
6850 case X86::VMOVDQUYrm:
6851 // AVX512 load instructions
6852 case X86::VMOVSSZrm:
6853 case X86::VMOVSDZrm:
6854 case X86::VMOVAPSZ128rm:
6855 case X86::VMOVUPSZ128rm:
6856 case X86::VMOVAPDZ128rm:
6857 case X86::VMOVUPDZ128rm:
6858 case X86::VMOVDQU8Z128rm:
6859 case X86::VMOVDQU16Z128rm:
6860 case X86::VMOVDQA32Z128rm:
6861 case X86::VMOVDQU32Z128rm:
6862 case X86::VMOVDQA64Z128rm:
6863 case X86::VMOVDQU64Z128rm:
6864 case X86::VMOVAPSZ256rm:
6865 case X86::VMOVUPSZ256rm:
6866 case X86::VMOVAPDZ256rm:
6867 case X86::VMOVUPDZ256rm:
6868 case X86::VMOVDQU8Z256rm:
6869 case X86::VMOVDQU16Z256rm:
6870 case X86::VMOVDQA32Z256rm:
6871 case X86::VMOVDQU32Z256rm:
6872 case X86::VMOVDQA64Z256rm:
6873 case X86::VMOVDQU64Z256rm:
6874 case X86::VMOVAPSZrm:
6875 case X86::VMOVUPSZrm:
6876 case X86::VMOVAPDZrm:
6877 case X86::VMOVUPDZrm:
6878 case X86::VMOVDQU8Zrm:
6879 case X86::VMOVDQU16Zrm:
6880 case X86::VMOVDQA32Zrm:
6881 case X86::VMOVDQU32Zrm:
6882 case X86::VMOVDQA64Zrm:
6883 case X86::VMOVDQU64Zrm:
6891 // Check if chain operands and base addresses match.
6892 if (Load1->getOperand(0) != Load2->getOperand(0) ||
6893 Load1->getOperand(5) != Load2->getOperand(5))
6895 // Segment operands should match as well.
6896 if (Load1->getOperand(4) != Load2->getOperand(4))
6898 // Scale should be 1, Index should be Reg0.
6899 if (Load1->getOperand(1) == Load2->getOperand(1) &&
6900 Load1->getOperand(2) == Load2->getOperand(2)) {
6901 if (cast<ConstantSDNode>(Load1->getOperand(1))->getZExtValue() != 1)
6904 // Now let's examine the displacements.
6905 if (isa<ConstantSDNode>(Load1->getOperand(3)) &&
6906 isa<ConstantSDNode>(Load2->getOperand(3))) {
6907 Offset1 = cast<ConstantSDNode>(Load1->getOperand(3))->getSExtValue();
6908 Offset2 = cast<ConstantSDNode>(Load2->getOperand(3))->getSExtValue();
6915 bool X86InstrInfo::shouldScheduleLoadsNear(SDNode *Load1, SDNode *Load2,
6916 int64_t Offset1, int64_t Offset2,
6917 unsigned NumLoads) const {
6918 assert(Offset2 > Offset1);
6919 if ((Offset2 - Offset1) / 8 > 64)
6922 unsigned Opc1 = Load1->getMachineOpcode();
6923 unsigned Opc2 = Load2->getMachineOpcode();
6925 return false; // FIXME: overly conservative?
6932 case X86::MMX_MOVD64rm:
6933 case X86::MMX_MOVQ64rm:
6937 EVT VT = Load1->getValueType(0);
6938 switch (VT.getSimpleVT().SimpleTy) {
6940 // XMM registers. In 64-bit mode we can be a bit more aggressive since we
6941 // have 16 of them to play with.
6942 if (Subtarget.is64Bit()) {
6945 } else if (NumLoads) {
6963 bool X86InstrInfo::shouldScheduleAdjacent(MachineInstr &First,
6964 MachineInstr &Second) const {
6965 // Check if this processor supports macro-fusion. Since this is a minor
6966 // heuristic, we haven't specifically reserved a feature. hasAVX is a decent
6967 // proxy for SandyBridge+.
6968 if (!Subtarget.hasAVX())
6977 switch (Second.getOpcode()) {
7000 FuseKind = FuseTest;
7003 switch (First.getOpcode()) {
7013 case X86::TEST32i32:
7014 case X86::TEST64i32:
7015 case X86::TEST64ri32:
7020 case X86::TEST8ri_NOREX:
7032 case X86::AND64ri32:
7052 case X86::CMP64ri32:
7063 case X86::ADD16ri8_DB:
7064 case X86::ADD16ri_DB:
7067 case X86::ADD16rr_DB:
7071 case X86::ADD32ri8_DB:
7072 case X86::ADD32ri_DB:
7075 case X86::ADD32rr_DB:
7077 case X86::ADD64ri32:
7078 case X86::ADD64ri32_DB:
7080 case X86::ADD64ri8_DB:
7083 case X86::ADD64rr_DB:
7101 case X86::SUB64ri32:
7109 return FuseKind == FuseCmp || FuseKind == FuseInc;
7118 return FuseKind == FuseInc;
7123 ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const {
7124 assert(Cond.size() == 1 && "Invalid X86 branch condition!");
7125 X86::CondCode CC = static_cast<X86::CondCode>(Cond[0].getImm());
7126 Cond[0].setImm(GetOppositeBranchCondition(CC));
7131 isSafeToMoveRegClassDefs(const TargetRegisterClass *RC) const {
7132 // FIXME: Return false for x87 stack register classes for now. We can't
7133 // allow any loads of these registers before FpGet_ST0_80.
7134 return !(RC == &X86::CCRRegClass || RC == &X86::RFP32RegClass ||
7135 RC == &X86::RFP64RegClass || RC == &X86::RFP80RegClass);
7138 /// Return a virtual register initialized with the
7139 /// the global base register value. Output instructions required to
7140 /// initialize the register in the function entry block, if necessary.
7142 /// TODO: Eliminate this and move the code to X86MachineFunctionInfo.
7144 unsigned X86InstrInfo::getGlobalBaseReg(MachineFunction *MF) const {
7145 assert(!Subtarget.is64Bit() &&
7146 "X86-64 PIC uses RIP relative addressing");
7148 X86MachineFunctionInfo *X86FI = MF->getInfo<X86MachineFunctionInfo>();
7149 unsigned GlobalBaseReg = X86FI->getGlobalBaseReg();
7150 if (GlobalBaseReg != 0)
7151 return GlobalBaseReg;
7153 // Create the register. The code to initialize it is inserted
7154 // later, by the CGBR pass (below).
7155 MachineRegisterInfo &RegInfo = MF->getRegInfo();
7156 GlobalBaseReg = RegInfo.createVirtualRegister(&X86::GR32_NOSPRegClass);
7157 X86FI->setGlobalBaseReg(GlobalBaseReg);
7158 return GlobalBaseReg;
7161 // These are the replaceable SSE instructions. Some of these have Int variants
7162 // that we don't include here. We don't want to replace instructions selected
7164 static const uint16_t ReplaceableInstrs[][3] = {
7165 //PackedSingle PackedDouble PackedInt
7166 { X86::MOVAPSmr, X86::MOVAPDmr, X86::MOVDQAmr },
7167 { X86::MOVAPSrm, X86::MOVAPDrm, X86::MOVDQArm },
7168 { X86::MOVAPSrr, X86::MOVAPDrr, X86::MOVDQArr },
7169 { X86::MOVUPSmr, X86::MOVUPDmr, X86::MOVDQUmr },
7170 { X86::MOVUPSrm, X86::MOVUPDrm, X86::MOVDQUrm },
7171 { X86::MOVLPSmr, X86::MOVLPDmr, X86::MOVPQI2QImr },
7172 { X86::MOVNTPSmr, X86::MOVNTPDmr, X86::MOVNTDQmr },
7173 { X86::ANDNPSrm, X86::ANDNPDrm, X86::PANDNrm },
7174 { X86::ANDNPSrr, X86::ANDNPDrr, X86::PANDNrr },
7175 { X86::ANDPSrm, X86::ANDPDrm, X86::PANDrm },
7176 { X86::ANDPSrr, X86::ANDPDrr, X86::PANDrr },
7177 { X86::ORPSrm, X86::ORPDrm, X86::PORrm },
7178 { X86::ORPSrr, X86::ORPDrr, X86::PORrr },
7179 { X86::XORPSrm, X86::XORPDrm, X86::PXORrm },
7180 { X86::XORPSrr, X86::XORPDrr, X86::PXORrr },
7181 // AVX 128-bit support
7182 { X86::VMOVAPSmr, X86::VMOVAPDmr, X86::VMOVDQAmr },
7183 { X86::VMOVAPSrm, X86::VMOVAPDrm, X86::VMOVDQArm },
7184 { X86::VMOVAPSrr, X86::VMOVAPDrr, X86::VMOVDQArr },
7185 { X86::VMOVUPSmr, X86::VMOVUPDmr, X86::VMOVDQUmr },
7186 { X86::VMOVUPSrm, X86::VMOVUPDrm, X86::VMOVDQUrm },
7187 { X86::VMOVLPSmr, X86::VMOVLPDmr, X86::VMOVPQI2QImr },
7188 { X86::VMOVNTPSmr, X86::VMOVNTPDmr, X86::VMOVNTDQmr },
7189 { X86::VANDNPSrm, X86::VANDNPDrm, X86::VPANDNrm },
7190 { X86::VANDNPSrr, X86::VANDNPDrr, X86::VPANDNrr },
7191 { X86::VANDPSrm, X86::VANDPDrm, X86::VPANDrm },
7192 { X86::VANDPSrr, X86::VANDPDrr, X86::VPANDrr },
7193 { X86::VORPSrm, X86::VORPDrm, X86::VPORrm },
7194 { X86::VORPSrr, X86::VORPDrr, X86::VPORrr },
7195 { X86::VXORPSrm, X86::VXORPDrm, X86::VPXORrm },
7196 { X86::VXORPSrr, X86::VXORPDrr, X86::VPXORrr },
7197 // AVX 256-bit support
7198 { X86::VMOVAPSYmr, X86::VMOVAPDYmr, X86::VMOVDQAYmr },
7199 { X86::VMOVAPSYrm, X86::VMOVAPDYrm, X86::VMOVDQAYrm },
7200 { X86::VMOVAPSYrr, X86::VMOVAPDYrr, X86::VMOVDQAYrr },
7201 { X86::VMOVUPSYmr, X86::VMOVUPDYmr, X86::VMOVDQUYmr },
7202 { X86::VMOVUPSYrm, X86::VMOVUPDYrm, X86::VMOVDQUYrm },
7203 { X86::VMOVNTPSYmr, X86::VMOVNTPDYmr, X86::VMOVNTDQYmr }
7206 static const uint16_t ReplaceableInstrsAVX2[][3] = {
7207 //PackedSingle PackedDouble PackedInt
7208 { X86::VANDNPSYrm, X86::VANDNPDYrm, X86::VPANDNYrm },
7209 { X86::VANDNPSYrr, X86::VANDNPDYrr, X86::VPANDNYrr },
7210 { X86::VANDPSYrm, X86::VANDPDYrm, X86::VPANDYrm },
7211 { X86::VANDPSYrr, X86::VANDPDYrr, X86::VPANDYrr },
7212 { X86::VORPSYrm, X86::VORPDYrm, X86::VPORYrm },
7213 { X86::VORPSYrr, X86::VORPDYrr, X86::VPORYrr },
7214 { X86::VXORPSYrm, X86::VXORPDYrm, X86::VPXORYrm },
7215 { X86::VXORPSYrr, X86::VXORPDYrr, X86::VPXORYrr },
7216 { X86::VEXTRACTF128mr, X86::VEXTRACTF128mr, X86::VEXTRACTI128mr },
7217 { X86::VEXTRACTF128rr, X86::VEXTRACTF128rr, X86::VEXTRACTI128rr },
7218 { X86::VINSERTF128rm, X86::VINSERTF128rm, X86::VINSERTI128rm },
7219 { X86::VINSERTF128rr, X86::VINSERTF128rr, X86::VINSERTI128rr },
7220 { X86::VPERM2F128rm, X86::VPERM2F128rm, X86::VPERM2I128rm },
7221 { X86::VPERM2F128rr, X86::VPERM2F128rr, X86::VPERM2I128rr },
7222 { X86::VBROADCASTSSrm, X86::VBROADCASTSSrm, X86::VPBROADCASTDrm},
7223 { X86::VBROADCASTSSrr, X86::VBROADCASTSSrr, X86::VPBROADCASTDrr},
7224 { X86::VBROADCASTSSYrr, X86::VBROADCASTSSYrr, X86::VPBROADCASTDYrr},
7225 { X86::VBROADCASTSSYrm, X86::VBROADCASTSSYrm, X86::VPBROADCASTDYrm},
7226 { X86::VBROADCASTSDYrr, X86::VBROADCASTSDYrr, X86::VPBROADCASTQYrr},
7227 { X86::VBROADCASTSDYrm, X86::VBROADCASTSDYrm, X86::VPBROADCASTQYrm}
7230 // FIXME: Some shuffle and unpack instructions have equivalents in different
7231 // domains, but they require a bit more work than just switching opcodes.
7233 static const uint16_t *lookup(unsigned opcode, unsigned domain) {
7234 for (const uint16_t (&Row)[3] : ReplaceableInstrs)
7235 if (Row[domain-1] == opcode)
7240 static const uint16_t *lookupAVX2(unsigned opcode, unsigned domain) {
7241 for (const uint16_t (&Row)[3] : ReplaceableInstrsAVX2)
7242 if (Row[domain-1] == opcode)
7247 std::pair<uint16_t, uint16_t>
7248 X86InstrInfo::getExecutionDomain(const MachineInstr &MI) const {
7249 uint16_t domain = (MI.getDesc().TSFlags >> X86II::SSEDomainShift) & 3;
7250 bool hasAVX2 = Subtarget.hasAVX2();
7251 uint16_t validDomains = 0;
7252 if (domain && lookup(MI.getOpcode(), domain))
7254 else if (domain && lookupAVX2(MI.getOpcode(), domain))
7255 validDomains = hasAVX2 ? 0xe : 0x6;
7256 return std::make_pair(domain, validDomains);
7259 void X86InstrInfo::setExecutionDomain(MachineInstr &MI, unsigned Domain) const {
7260 assert(Domain>0 && Domain<4 && "Invalid execution domain");
7261 uint16_t dom = (MI.getDesc().TSFlags >> X86II::SSEDomainShift) & 3;
7262 assert(dom && "Not an SSE instruction");
7263 const uint16_t *table = lookup(MI.getOpcode(), dom);
7264 if (!table) { // try the other table
7265 assert((Subtarget.hasAVX2() || Domain < 3) &&
7266 "256-bit vector operations only available in AVX2");
7267 table = lookupAVX2(MI.getOpcode(), dom);
7269 assert(table && "Cannot change domain");
7270 MI.setDesc(get(table[Domain - 1]));
7273 /// Return the noop instruction to use for a noop.
7274 void X86InstrInfo::getNoopForMachoTarget(MCInst &NopInst) const {
7275 NopInst.setOpcode(X86::NOOP);
7278 // This code must remain in sync with getJumpInstrTableEntryBound in this class!
7279 // In particular, getJumpInstrTableEntryBound must always return an upper bound
7280 // on the encoding lengths of the instructions generated by
7281 // getUnconditionalBranch and getTrap.
7282 void X86InstrInfo::getUnconditionalBranch(
7283 MCInst &Branch, const MCSymbolRefExpr *BranchTarget) const {
7284 Branch.setOpcode(X86::JMP_1);
7285 Branch.addOperand(MCOperand::createExpr(BranchTarget));
7288 // This code must remain in sync with getJumpInstrTableEntryBound in this class!
7289 // In particular, getJumpInstrTableEntryBound must always return an upper bound
7290 // on the encoding lengths of the instructions generated by
7291 // getUnconditionalBranch and getTrap.
7292 void X86InstrInfo::getTrap(MCInst &MI) const {
7293 MI.setOpcode(X86::TRAP);
7296 // See getTrap and getUnconditionalBranch for conditions on the value returned
7297 // by this function.
7298 unsigned X86InstrInfo::getJumpInstrTableEntryBound() const {
7299 // 5 bytes suffice: JMP_4 Symbol@PLT is uses 1 byte (E9) for the JMP_4 and 4
7300 // bytes for the symbol offset. And TRAP is ud2, which is two bytes (0F 0B).
7304 bool X86InstrInfo::isHighLatencyDef(int opc) const {
7306 default: return false;
7312 case X86::DIVSDrm_Int:
7314 case X86::DIVSDrr_Int:
7316 case X86::DIVSSrm_Int:
7318 case X86::DIVSSrr_Int:
7324 case X86::SQRTSDm_Int:
7326 case X86::SQRTSDr_Int:
7328 case X86::SQRTSSm_Int:
7330 case X86::SQRTSSr_Int:
7331 // AVX instructions with high latency
7334 case X86::VDIVPDYrm:
7335 case X86::VDIVPDYrr:
7338 case X86::VDIVPSYrm:
7339 case X86::VDIVPSYrr:
7341 case X86::VDIVSDrm_Int:
7343 case X86::VDIVSDrr_Int:
7345 case X86::VDIVSSrm_Int:
7347 case X86::VDIVSSrr_Int:
7350 case X86::VSQRTPDYm:
7351 case X86::VSQRTPDYr:
7354 case X86::VSQRTPSYm:
7355 case X86::VSQRTPSYr:
7357 case X86::VSQRTSDm_Int:
7359 case X86::VSQRTSDr_Int:
7361 case X86::VSQRTSSm_Int:
7363 case X86::VSQRTSSr_Int:
7364 // AVX512 instructions with high latency
7365 case X86::VDIVPDZ128rm:
7366 case X86::VDIVPDZ128rmb:
7367 case X86::VDIVPDZ128rmbk:
7368 case X86::VDIVPDZ128rmbkz:
7369 case X86::VDIVPDZ128rmk:
7370 case X86::VDIVPDZ128rmkz:
7371 case X86::VDIVPDZ128rr:
7372 case X86::VDIVPDZ128rrk:
7373 case X86::VDIVPDZ128rrkz:
7374 case X86::VDIVPDZ256rm:
7375 case X86::VDIVPDZ256rmb:
7376 case X86::VDIVPDZ256rmbk:
7377 case X86::VDIVPDZ256rmbkz:
7378 case X86::VDIVPDZ256rmk:
7379 case X86::VDIVPDZ256rmkz:
7380 case X86::VDIVPDZ256rr:
7381 case X86::VDIVPDZ256rrk:
7382 case X86::VDIVPDZ256rrkz:
7383 case X86::VDIVPDZrb:
7384 case X86::VDIVPDZrbk:
7385 case X86::VDIVPDZrbkz:
7386 case X86::VDIVPDZrm:
7387 case X86::VDIVPDZrmb:
7388 case X86::VDIVPDZrmbk:
7389 case X86::VDIVPDZrmbkz:
7390 case X86::VDIVPDZrmk:
7391 case X86::VDIVPDZrmkz:
7392 case X86::VDIVPDZrr:
7393 case X86::VDIVPDZrrk:
7394 case X86::VDIVPDZrrkz:
7395 case X86::VDIVPSZ128rm:
7396 case X86::VDIVPSZ128rmb:
7397 case X86::VDIVPSZ128rmbk:
7398 case X86::VDIVPSZ128rmbkz:
7399 case X86::VDIVPSZ128rmk:
7400 case X86::VDIVPSZ128rmkz:
7401 case X86::VDIVPSZ128rr:
7402 case X86::VDIVPSZ128rrk:
7403 case X86::VDIVPSZ128rrkz:
7404 case X86::VDIVPSZ256rm:
7405 case X86::VDIVPSZ256rmb:
7406 case X86::VDIVPSZ256rmbk:
7407 case X86::VDIVPSZ256rmbkz:
7408 case X86::VDIVPSZ256rmk:
7409 case X86::VDIVPSZ256rmkz:
7410 case X86::VDIVPSZ256rr:
7411 case X86::VDIVPSZ256rrk:
7412 case X86::VDIVPSZ256rrkz:
7413 case X86::VDIVPSZrb:
7414 case X86::VDIVPSZrbk:
7415 case X86::VDIVPSZrbkz:
7416 case X86::VDIVPSZrm:
7417 case X86::VDIVPSZrmb:
7418 case X86::VDIVPSZrmbk:
7419 case X86::VDIVPSZrmbkz:
7420 case X86::VDIVPSZrmk:
7421 case X86::VDIVPSZrmkz:
7422 case X86::VDIVPSZrr:
7423 case X86::VDIVPSZrrk:
7424 case X86::VDIVPSZrrkz:
7425 case X86::VDIVSDZrm:
7426 case X86::VDIVSDZrr:
7427 case X86::VDIVSDZrm_Int:
7428 case X86::VDIVSDZrm_Intk:
7429 case X86::VDIVSDZrm_Intkz:
7430 case X86::VDIVSDZrr_Int:
7431 case X86::VDIVSDZrr_Intk:
7432 case X86::VDIVSDZrr_Intkz:
7433 case X86::VDIVSDZrrb:
7434 case X86::VDIVSDZrrbk:
7435 case X86::VDIVSDZrrbkz:
7436 case X86::VDIVSSZrm:
7437 case X86::VDIVSSZrr:
7438 case X86::VDIVSSZrm_Int:
7439 case X86::VDIVSSZrm_Intk:
7440 case X86::VDIVSSZrm_Intkz:
7441 case X86::VDIVSSZrr_Int:
7442 case X86::VDIVSSZrr_Intk:
7443 case X86::VDIVSSZrr_Intkz:
7444 case X86::VDIVSSZrrb:
7445 case X86::VDIVSSZrrbk:
7446 case X86::VDIVSSZrrbkz:
7447 case X86::VSQRTPDZ128m:
7448 case X86::VSQRTPDZ128mb:
7449 case X86::VSQRTPDZ128mbk:
7450 case X86::VSQRTPDZ128mbkz:
7451 case X86::VSQRTPDZ128mk:
7452 case X86::VSQRTPDZ128mkz:
7453 case X86::VSQRTPDZ128r:
7454 case X86::VSQRTPDZ128rk:
7455 case X86::VSQRTPDZ128rkz:
7456 case X86::VSQRTPDZ256m:
7457 case X86::VSQRTPDZ256mb:
7458 case X86::VSQRTPDZ256mbk:
7459 case X86::VSQRTPDZ256mbkz:
7460 case X86::VSQRTPDZ256mk:
7461 case X86::VSQRTPDZ256mkz:
7462 case X86::VSQRTPDZ256r:
7463 case X86::VSQRTPDZ256rk:
7464 case X86::VSQRTPDZ256rkz:
7465 case X86::VSQRTPDZm:
7466 case X86::VSQRTPDZmb:
7467 case X86::VSQRTPDZmbk:
7468 case X86::VSQRTPDZmbkz:
7469 case X86::VSQRTPDZmk:
7470 case X86::VSQRTPDZmkz:
7471 case X86::VSQRTPDZr:
7472 case X86::VSQRTPDZrb:
7473 case X86::VSQRTPDZrbk:
7474 case X86::VSQRTPDZrbkz:
7475 case X86::VSQRTPDZrk:
7476 case X86::VSQRTPDZrkz:
7477 case X86::VSQRTPSZ128m:
7478 case X86::VSQRTPSZ128mb:
7479 case X86::VSQRTPSZ128mbk:
7480 case X86::VSQRTPSZ128mbkz:
7481 case X86::VSQRTPSZ128mk:
7482 case X86::VSQRTPSZ128mkz:
7483 case X86::VSQRTPSZ128r:
7484 case X86::VSQRTPSZ128rk:
7485 case X86::VSQRTPSZ128rkz:
7486 case X86::VSQRTPSZ256m:
7487 case X86::VSQRTPSZ256mb:
7488 case X86::VSQRTPSZ256mbk:
7489 case X86::VSQRTPSZ256mbkz:
7490 case X86::VSQRTPSZ256mk:
7491 case X86::VSQRTPSZ256mkz:
7492 case X86::VSQRTPSZ256r:
7493 case X86::VSQRTPSZ256rk:
7494 case X86::VSQRTPSZ256rkz:
7495 case X86::VSQRTPSZm:
7496 case X86::VSQRTPSZmb:
7497 case X86::VSQRTPSZmbk:
7498 case X86::VSQRTPSZmbkz:
7499 case X86::VSQRTPSZmk:
7500 case X86::VSQRTPSZmkz:
7501 case X86::VSQRTPSZr:
7502 case X86::VSQRTPSZrb:
7503 case X86::VSQRTPSZrbk:
7504 case X86::VSQRTPSZrbkz:
7505 case X86::VSQRTPSZrk:
7506 case X86::VSQRTPSZrkz:
7507 case X86::VSQRTSDZm:
7508 case X86::VSQRTSDZm_Int:
7509 case X86::VSQRTSDZm_Intk:
7510 case X86::VSQRTSDZm_Intkz:
7511 case X86::VSQRTSDZr:
7512 case X86::VSQRTSDZr_Int:
7513 case X86::VSQRTSDZr_Intk:
7514 case X86::VSQRTSDZr_Intkz:
7515 case X86::VSQRTSDZrb_Int:
7516 case X86::VSQRTSDZrb_Intk:
7517 case X86::VSQRTSDZrb_Intkz:
7518 case X86::VSQRTSSZm:
7519 case X86::VSQRTSSZm_Int:
7520 case X86::VSQRTSSZm_Intk:
7521 case X86::VSQRTSSZm_Intkz:
7522 case X86::VSQRTSSZr:
7523 case X86::VSQRTSSZr_Int:
7524 case X86::VSQRTSSZr_Intk:
7525 case X86::VSQRTSSZr_Intkz:
7526 case X86::VSQRTSSZrb_Int:
7527 case X86::VSQRTSSZrb_Intk:
7528 case X86::VSQRTSSZrb_Intkz:
7530 case X86::VGATHERDPDYrm:
7531 case X86::VGATHERDPDZ128rm:
7532 case X86::VGATHERDPDZ256rm:
7533 case X86::VGATHERDPDZrm:
7534 case X86::VGATHERDPDrm:
7535 case X86::VGATHERDPSYrm:
7536 case X86::VGATHERDPSZ128rm:
7537 case X86::VGATHERDPSZ256rm:
7538 case X86::VGATHERDPSZrm:
7539 case X86::VGATHERDPSrm:
7540 case X86::VGATHERPF0DPDm:
7541 case X86::VGATHERPF0DPSm:
7542 case X86::VGATHERPF0QPDm:
7543 case X86::VGATHERPF0QPSm:
7544 case X86::VGATHERPF1DPDm:
7545 case X86::VGATHERPF1DPSm:
7546 case X86::VGATHERPF1QPDm:
7547 case X86::VGATHERPF1QPSm:
7548 case X86::VGATHERQPDYrm:
7549 case X86::VGATHERQPDZ128rm:
7550 case X86::VGATHERQPDZ256rm:
7551 case X86::VGATHERQPDZrm:
7552 case X86::VGATHERQPDrm:
7553 case X86::VGATHERQPSYrm:
7554 case X86::VGATHERQPSZ128rm:
7555 case X86::VGATHERQPSZ256rm:
7556 case X86::VGATHERQPSZrm:
7557 case X86::VGATHERQPSrm:
7558 case X86::VPGATHERDDYrm:
7559 case X86::VPGATHERDDZ128rm:
7560 case X86::VPGATHERDDZ256rm:
7561 case X86::VPGATHERDDZrm:
7562 case X86::VPGATHERDDrm:
7563 case X86::VPGATHERDQYrm:
7564 case X86::VPGATHERDQZ128rm:
7565 case X86::VPGATHERDQZ256rm:
7566 case X86::VPGATHERDQZrm:
7567 case X86::VPGATHERDQrm:
7568 case X86::VPGATHERQDYrm:
7569 case X86::VPGATHERQDZ128rm:
7570 case X86::VPGATHERQDZ256rm:
7571 case X86::VPGATHERQDZrm:
7572 case X86::VPGATHERQDrm:
7573 case X86::VPGATHERQQYrm:
7574 case X86::VPGATHERQQZ128rm:
7575 case X86::VPGATHERQQZ256rm:
7576 case X86::VPGATHERQQZrm:
7577 case X86::VPGATHERQQrm:
7578 case X86::VSCATTERDPDZ128mr:
7579 case X86::VSCATTERDPDZ256mr:
7580 case X86::VSCATTERDPDZmr:
7581 case X86::VSCATTERDPSZ128mr:
7582 case X86::VSCATTERDPSZ256mr:
7583 case X86::VSCATTERDPSZmr:
7584 case X86::VSCATTERPF0DPDm:
7585 case X86::VSCATTERPF0DPSm:
7586 case X86::VSCATTERPF0QPDm:
7587 case X86::VSCATTERPF0QPSm:
7588 case X86::VSCATTERPF1DPDm:
7589 case X86::VSCATTERPF1DPSm:
7590 case X86::VSCATTERPF1QPDm:
7591 case X86::VSCATTERPF1QPSm:
7592 case X86::VSCATTERQPDZ128mr:
7593 case X86::VSCATTERQPDZ256mr:
7594 case X86::VSCATTERQPDZmr:
7595 case X86::VSCATTERQPSZ128mr:
7596 case X86::VSCATTERQPSZ256mr:
7597 case X86::VSCATTERQPSZmr:
7598 case X86::VPSCATTERDDZ128mr:
7599 case X86::VPSCATTERDDZ256mr:
7600 case X86::VPSCATTERDDZmr:
7601 case X86::VPSCATTERDQZ128mr:
7602 case X86::VPSCATTERDQZ256mr:
7603 case X86::VPSCATTERDQZmr:
7604 case X86::VPSCATTERQDZ128mr:
7605 case X86::VPSCATTERQDZ256mr:
7606 case X86::VPSCATTERQDZmr:
7607 case X86::VPSCATTERQQZ128mr:
7608 case X86::VPSCATTERQQZ256mr:
7609 case X86::VPSCATTERQQZmr:
7614 bool X86InstrInfo::hasHighOperandLatency(const TargetSchedModel &SchedModel,
7615 const MachineRegisterInfo *MRI,
7616 const MachineInstr &DefMI,
7618 const MachineInstr &UseMI,
7619 unsigned UseIdx) const {
7620 return isHighLatencyDef(DefMI.getOpcode());
7623 bool X86InstrInfo::hasReassociableOperands(const MachineInstr &Inst,
7624 const MachineBasicBlock *MBB) const {
7625 assert((Inst.getNumOperands() == 3 || Inst.getNumOperands() == 4) &&
7626 "Reassociation needs binary operators");
7628 // Integer binary math/logic instructions have a third source operand:
7629 // the EFLAGS register. That operand must be both defined here and never
7630 // used; ie, it must be dead. If the EFLAGS operand is live, then we can
7631 // not change anything because rearranging the operands could affect other
7632 // instructions that depend on the exact status flags (zero, sign, etc.)
7633 // that are set by using these particular operands with this operation.
7634 if (Inst.getNumOperands() == 4) {
7635 assert(Inst.getOperand(3).isReg() &&
7636 Inst.getOperand(3).getReg() == X86::EFLAGS &&
7637 "Unexpected operand in reassociable instruction");
7638 if (!Inst.getOperand(3).isDead())
7642 return TargetInstrInfo::hasReassociableOperands(Inst, MBB);
7645 // TODO: There are many more machine instruction opcodes to match:
7646 // 1. Other data types (integer, vectors)
7647 // 2. Other math / logic operations (xor, or)
7648 // 3. Other forms of the same operation (intrinsics and other variants)
7649 bool X86InstrInfo::isAssociativeAndCommutative(const MachineInstr &Inst) const {
7650 switch (Inst.getOpcode()) {
7681 case X86::VPANDDZ128rr:
7682 case X86::VPANDDZ256rr:
7683 case X86::VPANDDZrr:
7684 case X86::VPANDQZ128rr:
7685 case X86::VPANDQZ256rr:
7686 case X86::VPANDQZrr:
7689 case X86::VPORDZ128rr:
7690 case X86::VPORDZ256rr:
7692 case X86::VPORQZ128rr:
7693 case X86::VPORQZ256rr:
7697 case X86::VPXORDZ128rr:
7698 case X86::VPXORDZ256rr:
7699 case X86::VPXORDZrr:
7700 case X86::VPXORQZ128rr:
7701 case X86::VPXORQZ256rr:
7702 case X86::VPXORQZrr:
7705 case X86::VANDPDYrr:
7706 case X86::VANDPSYrr:
7707 case X86::VANDPDZ128rr:
7708 case X86::VANDPSZ128rr:
7709 case X86::VANDPDZ256rr:
7710 case X86::VANDPSZ256rr:
7711 case X86::VANDPDZrr:
7712 case X86::VANDPSZrr:
7717 case X86::VORPDZ128rr:
7718 case X86::VORPSZ128rr:
7719 case X86::VORPDZ256rr:
7720 case X86::VORPSZ256rr:
7725 case X86::VXORPDYrr:
7726 case X86::VXORPSYrr:
7727 case X86::VXORPDZ128rr:
7728 case X86::VXORPSZ128rr:
7729 case X86::VXORPDZ256rr:
7730 case X86::VXORPSZ256rr:
7731 case X86::VXORPDZrr:
7732 case X86::VXORPSZrr:
7753 case X86::VPADDBYrr:
7754 case X86::VPADDWYrr:
7755 case X86::VPADDDYrr:
7756 case X86::VPADDQYrr:
7757 case X86::VPADDBZ128rr:
7758 case X86::VPADDWZ128rr:
7759 case X86::VPADDDZ128rr:
7760 case X86::VPADDQZ128rr:
7761 case X86::VPADDBZ256rr:
7762 case X86::VPADDWZ256rr:
7763 case X86::VPADDDZ256rr:
7764 case X86::VPADDQZ256rr:
7765 case X86::VPADDBZrr:
7766 case X86::VPADDWZrr:
7767 case X86::VPADDDZrr:
7768 case X86::VPADDQZrr:
7769 case X86::VPMULLWrr:
7770 case X86::VPMULLWYrr:
7771 case X86::VPMULLWZ128rr:
7772 case X86::VPMULLWZ256rr:
7773 case X86::VPMULLWZrr:
7774 case X86::VPMULLDrr:
7775 case X86::VPMULLDYrr:
7776 case X86::VPMULLDZ128rr:
7777 case X86::VPMULLDZ256rr:
7778 case X86::VPMULLDZrr:
7779 case X86::VPMULLQZ128rr:
7780 case X86::VPMULLQZ256rr:
7781 case X86::VPMULLQZrr:
7782 // Normal min/max instructions are not commutative because of NaN and signed
7783 // zero semantics, but these are. Thus, there's no need to check for global
7784 // relaxed math; the instructions themselves have the properties we need.
7793 case X86::VMAXCPDrr:
7794 case X86::VMAXCPSrr:
7795 case X86::VMAXCPDYrr:
7796 case X86::VMAXCPSYrr:
7797 case X86::VMAXCPDZ128rr:
7798 case X86::VMAXCPSZ128rr:
7799 case X86::VMAXCPDZ256rr:
7800 case X86::VMAXCPSZ256rr:
7801 case X86::VMAXCPDZrr:
7802 case X86::VMAXCPSZrr:
7803 case X86::VMAXCSDrr:
7804 case X86::VMAXCSSrr:
7805 case X86::VMAXCSDZrr:
7806 case X86::VMAXCSSZrr:
7807 case X86::VMINCPDrr:
7808 case X86::VMINCPSrr:
7809 case X86::VMINCPDYrr:
7810 case X86::VMINCPSYrr:
7811 case X86::VMINCPDZ128rr:
7812 case X86::VMINCPSZ128rr:
7813 case X86::VMINCPDZ256rr:
7814 case X86::VMINCPSZ256rr:
7815 case X86::VMINCPDZrr:
7816 case X86::VMINCPSZrr:
7817 case X86::VMINCSDrr:
7818 case X86::VMINCSSrr:
7819 case X86::VMINCSDZrr:
7820 case X86::VMINCSSZrr:
7832 case X86::VADDPDYrr:
7833 case X86::VADDPSYrr:
7834 case X86::VADDPDZ128rr:
7835 case X86::VADDPSZ128rr:
7836 case X86::VADDPDZ256rr:
7837 case X86::VADDPSZ256rr:
7838 case X86::VADDPDZrr:
7839 case X86::VADDPSZrr:
7842 case X86::VADDSDZrr:
7843 case X86::VADDSSZrr:
7846 case X86::VMULPDYrr:
7847 case X86::VMULPSYrr:
7848 case X86::VMULPDZ128rr:
7849 case X86::VMULPSZ128rr:
7850 case X86::VMULPDZ256rr:
7851 case X86::VMULPSZ256rr:
7852 case X86::VMULPDZrr:
7853 case X86::VMULPSZrr:
7856 case X86::VMULSDZrr:
7857 case X86::VMULSSZrr:
7858 return Inst.getParent()->getParent()->getTarget().Options.UnsafeFPMath;
7864 /// This is an architecture-specific helper function of reassociateOps.
7865 /// Set special operand attributes for new instructions after reassociation.
7866 void X86InstrInfo::setSpecialOperandAttr(MachineInstr &OldMI1,
7867 MachineInstr &OldMI2,
7868 MachineInstr &NewMI1,
7869 MachineInstr &NewMI2) const {
7870 // Integer instructions define an implicit EFLAGS source register operand as
7871 // the third source (fourth total) operand.
7872 if (OldMI1.getNumOperands() != 4 || OldMI2.getNumOperands() != 4)
7875 assert(NewMI1.getNumOperands() == 4 && NewMI2.getNumOperands() == 4 &&
7876 "Unexpected instruction type for reassociation");
7878 MachineOperand &OldOp1 = OldMI1.getOperand(3);
7879 MachineOperand &OldOp2 = OldMI2.getOperand(3);
7880 MachineOperand &NewOp1 = NewMI1.getOperand(3);
7881 MachineOperand &NewOp2 = NewMI2.getOperand(3);
7883 assert(OldOp1.isReg() && OldOp1.getReg() == X86::EFLAGS && OldOp1.isDead() &&
7884 "Must have dead EFLAGS operand in reassociable instruction");
7885 assert(OldOp2.isReg() && OldOp2.getReg() == X86::EFLAGS && OldOp2.isDead() &&
7886 "Must have dead EFLAGS operand in reassociable instruction");
7891 assert(NewOp1.isReg() && NewOp1.getReg() == X86::EFLAGS &&
7892 "Unexpected operand in reassociable instruction");
7893 assert(NewOp2.isReg() && NewOp2.getReg() == X86::EFLAGS &&
7894 "Unexpected operand in reassociable instruction");
7896 // Mark the new EFLAGS operands as dead to be helpful to subsequent iterations
7897 // of this pass or other passes. The EFLAGS operands must be dead in these new
7898 // instructions because the EFLAGS operands in the original instructions must
7899 // be dead in order for reassociation to occur.
7904 std::pair<unsigned, unsigned>
7905 X86InstrInfo::decomposeMachineOperandsTargetFlags(unsigned TF) const {
7906 return std::make_pair(TF, 0u);
7909 ArrayRef<std::pair<unsigned, const char *>>
7910 X86InstrInfo::getSerializableDirectMachineOperandTargetFlags() const {
7911 using namespace X86II;
7912 static const std::pair<unsigned, const char *> TargetFlags[] = {
7913 {MO_GOT_ABSOLUTE_ADDRESS, "x86-got-absolute-address"},
7914 {MO_PIC_BASE_OFFSET, "x86-pic-base-offset"},
7915 {MO_GOT, "x86-got"},
7916 {MO_GOTOFF, "x86-gotoff"},
7917 {MO_GOTPCREL, "x86-gotpcrel"},
7918 {MO_PLT, "x86-plt"},
7919 {MO_TLSGD, "x86-tlsgd"},
7920 {MO_TLSLD, "x86-tlsld"},
7921 {MO_TLSLDM, "x86-tlsldm"},
7922 {MO_GOTTPOFF, "x86-gottpoff"},
7923 {MO_INDNTPOFF, "x86-indntpoff"},
7924 {MO_TPOFF, "x86-tpoff"},
7925 {MO_DTPOFF, "x86-dtpoff"},
7926 {MO_NTPOFF, "x86-ntpoff"},
7927 {MO_GOTNTPOFF, "x86-gotntpoff"},
7928 {MO_DLLIMPORT, "x86-dllimport"},
7929 {MO_DARWIN_NONLAZY, "x86-darwin-nonlazy"},
7930 {MO_DARWIN_NONLAZY_PIC_BASE, "x86-darwin-nonlazy-pic-base"},
7931 {MO_TLVP, "x86-tlvp"},
7932 {MO_TLVP_PIC_BASE, "x86-tlvp-pic-base"},
7933 {MO_SECREL, "x86-secrel"}};
7934 return makeArrayRef(TargetFlags);
7938 /// Create Global Base Reg pass. This initializes the PIC
7939 /// global base register for x86-32.
7940 struct CGBR : public MachineFunctionPass {
7942 CGBR() : MachineFunctionPass(ID) {}
7944 bool runOnMachineFunction(MachineFunction &MF) override {
7945 const X86TargetMachine *TM =
7946 static_cast<const X86TargetMachine *>(&MF.getTarget());
7947 const X86Subtarget &STI = MF.getSubtarget<X86Subtarget>();
7949 // Don't do anything if this is 64-bit as 64-bit PIC
7950 // uses RIP relative addressing.
7954 // Only emit a global base reg in PIC mode.
7955 if (!TM->isPositionIndependent())
7958 X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
7959 unsigned GlobalBaseReg = X86FI->getGlobalBaseReg();
7961 // If we didn't need a GlobalBaseReg, don't insert code.
7962 if (GlobalBaseReg == 0)
7965 // Insert the set of GlobalBaseReg into the first MBB of the function
7966 MachineBasicBlock &FirstMBB = MF.front();
7967 MachineBasicBlock::iterator MBBI = FirstMBB.begin();
7968 DebugLoc DL = FirstMBB.findDebugLoc(MBBI);
7969 MachineRegisterInfo &RegInfo = MF.getRegInfo();
7970 const X86InstrInfo *TII = STI.getInstrInfo();
7973 if (STI.isPICStyleGOT())
7974 PC = RegInfo.createVirtualRegister(&X86::GR32RegClass);
7978 // Operand of MovePCtoStack is completely ignored by asm printer. It's
7979 // only used in JIT code emission as displacement to pc.
7980 BuildMI(FirstMBB, MBBI, DL, TII->get(X86::MOVPC32r), PC).addImm(0);
7982 // If we're using vanilla 'GOT' PIC style, we should use relative addressing
7983 // not to pc, but to _GLOBAL_OFFSET_TABLE_ external.
7984 if (STI.isPICStyleGOT()) {
7985 // Generate addl $__GLOBAL_OFFSET_TABLE_ + [.-piclabel], %some_register
7986 BuildMI(FirstMBB, MBBI, DL, TII->get(X86::ADD32ri), GlobalBaseReg)
7987 .addReg(PC).addExternalSymbol("_GLOBAL_OFFSET_TABLE_",
7988 X86II::MO_GOT_ABSOLUTE_ADDRESS);
7994 const char *getPassName() const override {
7995 return "X86 PIC Global Base Reg Initialization";
7998 void getAnalysisUsage(AnalysisUsage &AU) const override {
7999 AU.setPreservesCFG();
8000 MachineFunctionPass::getAnalysisUsage(AU);
8007 llvm::createX86GlobalBaseRegPass() { return new CGBR(); }
8010 struct LDTLSCleanup : public MachineFunctionPass {
8012 LDTLSCleanup() : MachineFunctionPass(ID) {}
8014 bool runOnMachineFunction(MachineFunction &MF) override {
8015 if (skipFunction(*MF.getFunction()))
8018 X86MachineFunctionInfo *MFI = MF.getInfo<X86MachineFunctionInfo>();
8019 if (MFI->getNumLocalDynamicTLSAccesses() < 2) {
8020 // No point folding accesses if there isn't at least two.
8024 MachineDominatorTree *DT = &getAnalysis<MachineDominatorTree>();
8025 return VisitNode(DT->getRootNode(), 0);
8028 // Visit the dominator subtree rooted at Node in pre-order.
8029 // If TLSBaseAddrReg is non-null, then use that to replace any
8030 // TLS_base_addr instructions. Otherwise, create the register
8031 // when the first such instruction is seen, and then use it
8032 // as we encounter more instructions.
8033 bool VisitNode(MachineDomTreeNode *Node, unsigned TLSBaseAddrReg) {
8034 MachineBasicBlock *BB = Node->getBlock();
8035 bool Changed = false;
8037 // Traverse the current block.
8038 for (MachineBasicBlock::iterator I = BB->begin(), E = BB->end(); I != E;
8040 switch (I->getOpcode()) {
8041 case X86::TLS_base_addr32:
8042 case X86::TLS_base_addr64:
8044 I = ReplaceTLSBaseAddrCall(*I, TLSBaseAddrReg);
8046 I = SetRegister(*I, &TLSBaseAddrReg);
8054 // Visit the children of this block in the dominator tree.
8055 for (MachineDomTreeNode::iterator I = Node->begin(), E = Node->end();
8057 Changed |= VisitNode(*I, TLSBaseAddrReg);
8063 // Replace the TLS_base_addr instruction I with a copy from
8064 // TLSBaseAddrReg, returning the new instruction.
8065 MachineInstr *ReplaceTLSBaseAddrCall(MachineInstr &I,
8066 unsigned TLSBaseAddrReg) {
8067 MachineFunction *MF = I.getParent()->getParent();
8068 const X86Subtarget &STI = MF->getSubtarget<X86Subtarget>();
8069 const bool is64Bit = STI.is64Bit();
8070 const X86InstrInfo *TII = STI.getInstrInfo();
8072 // Insert a Copy from TLSBaseAddrReg to RAX/EAX.
8073 MachineInstr *Copy =
8074 BuildMI(*I.getParent(), I, I.getDebugLoc(),
8075 TII->get(TargetOpcode::COPY), is64Bit ? X86::RAX : X86::EAX)
8076 .addReg(TLSBaseAddrReg);
8078 // Erase the TLS_base_addr instruction.
8079 I.eraseFromParent();
8084 // Create a virtal register in *TLSBaseAddrReg, and populate it by
8085 // inserting a copy instruction after I. Returns the new instruction.
8086 MachineInstr *SetRegister(MachineInstr &I, unsigned *TLSBaseAddrReg) {
8087 MachineFunction *MF = I.getParent()->getParent();
8088 const X86Subtarget &STI = MF->getSubtarget<X86Subtarget>();
8089 const bool is64Bit = STI.is64Bit();
8090 const X86InstrInfo *TII = STI.getInstrInfo();
8092 // Create a virtual register for the TLS base address.
8093 MachineRegisterInfo &RegInfo = MF->getRegInfo();
8094 *TLSBaseAddrReg = RegInfo.createVirtualRegister(is64Bit
8095 ? &X86::GR64RegClass
8096 : &X86::GR32RegClass);
8098 // Insert a copy from RAX/EAX to TLSBaseAddrReg.
8099 MachineInstr *Next = I.getNextNode();
8100 MachineInstr *Copy =
8101 BuildMI(*I.getParent(), Next, I.getDebugLoc(),
8102 TII->get(TargetOpcode::COPY), *TLSBaseAddrReg)
8103 .addReg(is64Bit ? X86::RAX : X86::EAX);
8108 const char *getPassName() const override {
8109 return "Local Dynamic TLS Access Clean-up";
8112 void getAnalysisUsage(AnalysisUsage &AU) const override {
8113 AU.setPreservesCFG();
8114 AU.addRequired<MachineDominatorTree>();
8115 MachineFunctionPass::getAnalysisUsage(AU);
8120 char LDTLSCleanup::ID = 0;
8122 llvm::createCleanupLocalDynamicTLSPass() { return new LDTLSCleanup(); }