1 //===- Mips64InstrInfo.td - Mips64 Instruction Information -*- tablegen -*-===//
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 describes Mips64 instructions.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // Mips Operand, Complex Patterns and Transformations Definitions.
16 //===----------------------------------------------------------------------===//
18 // Instruction operand types
19 def shamt_64 : Operand<i64>;
22 def uimm16_64 : Operand<i64> {
23 let PrintMethod = "printUnsignedImm";
26 // Transformation Function - get Imm - 32.
27 def Subtract32 : SDNodeXForm<imm, [{
28 return getImm(N, (unsigned)N->getZExtValue() - 32);
31 // shamt must fit in 6 bits.
32 def immZExt6 : ImmLeaf<i32, [{return Imm == (Imm & 0x3f);}]>;
34 //===----------------------------------------------------------------------===//
35 // Instructions specific format
36 //===----------------------------------------------------------------------===//
38 // 64-bit shift instructions.
39 let DecoderNamespace = "Mips64" in {
40 class shift_rotate_imm64<bits<6> func, bits<5> isRotate, string instr_asm,
42 shift_rotate_imm<func, isRotate, instr_asm, OpNode, immZExt6, shamt,
46 class Mult64<bits<6> func, string instr_asm, InstrItinClass itin>:
47 Mult<func, instr_asm, itin, CPU64Regs, [HI64, LO64]>;
48 class Div64<SDNode op, bits<6> func, string instr_asm, InstrItinClass itin>:
49 Div<op, func, instr_asm, itin, CPU64Regs, [HI64, LO64]>;
51 multiclass Atomic2Ops64<PatFrag Op, string Opstr> {
52 def #NAME# : Atomic2Ops<Op, Opstr, CPU64Regs, CPURegs>,
53 Requires<[NotN64, HasStandardEncoding]>;
54 def _P8 : Atomic2Ops<Op, Opstr, CPU64Regs, CPU64Regs>,
55 Requires<[IsN64, HasStandardEncoding]> {
56 let isCodeGenOnly = 1;
60 multiclass AtomicCmpSwap64<PatFrag Op, string Width> {
61 def #NAME# : AtomicCmpSwap<Op, Width, CPU64Regs, CPURegs>,
62 Requires<[NotN64, HasStandardEncoding]>;
63 def _P8 : AtomicCmpSwap<Op, Width, CPU64Regs, CPU64Regs>,
64 Requires<[IsN64, HasStandardEncoding]> {
65 let isCodeGenOnly = 1;
69 let usesCustomInserter = 1, Predicates = [HasMips64, HasStandardEncoding],
70 DecoderNamespace = "Mips64" in {
71 defm ATOMIC_LOAD_ADD_I64 : Atomic2Ops64<atomic_load_add_64, "load_add_64">;
72 defm ATOMIC_LOAD_SUB_I64 : Atomic2Ops64<atomic_load_sub_64, "load_sub_64">;
73 defm ATOMIC_LOAD_AND_I64 : Atomic2Ops64<atomic_load_and_64, "load_and_64">;
74 defm ATOMIC_LOAD_OR_I64 : Atomic2Ops64<atomic_load_or_64, "load_or_64">;
75 defm ATOMIC_LOAD_XOR_I64 : Atomic2Ops64<atomic_load_xor_64, "load_xor_64">;
76 defm ATOMIC_LOAD_NAND_I64 : Atomic2Ops64<atomic_load_nand_64, "load_nand_64">;
77 defm ATOMIC_SWAP_I64 : Atomic2Ops64<atomic_swap_64, "swap_64">;
78 defm ATOMIC_CMP_SWAP_I64 : AtomicCmpSwap64<atomic_cmp_swap_64, "64">;
81 //===----------------------------------------------------------------------===//
82 // Instruction definition
83 //===----------------------------------------------------------------------===//
84 let DecoderNamespace = "Mips64" in {
85 /// Arithmetic Instructions (ALU Immediate)
86 def DADDi : ArithOverflowI<0x18, "daddi", add, simm16_64, immSExt16,
88 def DADDiu : ArithLogicI<0x19, "daddiu", add, simm16_64, immSExt16,
89 CPU64Regs>, IsAsCheapAsAMove;
90 def DANDi : ArithLogicI<0x0c, "andi", and, uimm16_64, immZExt16, CPU64Regs>;
91 def SLTi64 : SetCC_I<0x0a, "slti", setlt, simm16_64, immSExt16, CPU64Regs>;
92 def SLTiu64 : SetCC_I<0x0b, "sltiu", setult, simm16_64, immSExt16, CPU64Regs>;
93 def ORi64 : ArithLogicI<0x0d, "ori", or, uimm16_64, immZExt16, CPU64Regs>;
94 def XORi64 : ArithLogicI<0x0e, "xori", xor, uimm16_64, immZExt16, CPU64Regs>;
95 def LUi64 : LoadUpper<0x0f, "lui", CPU64Regs, uimm16_64>;
97 /// Arithmetic Instructions (3-Operand, R-Type)
98 def DADD : ArithOverflowR<0x00, 0x2C, "dadd", IIAlu, CPU64Regs, 1>;
99 def DADDu : ArithLogicR<0x00, 0x2d, "daddu", add, IIAlu, CPU64Regs, 1>;
100 def DSUBu : ArithLogicR<0x00, 0x2f, "dsubu", sub, IIAlu, CPU64Regs>;
101 def SLT64 : SetCC_R<0x00, 0x2a, "slt", setlt, CPU64Regs>;
102 def SLTu64 : SetCC_R<0x00, 0x2b, "sltu", setult, CPU64Regs>;
103 def AND64 : ArithLogicR<0x00, 0x24, "and", and, IIAlu, CPU64Regs, 1>;
104 def OR64 : ArithLogicR<0x00, 0x25, "or", or, IIAlu, CPU64Regs, 1>;
105 def XOR64 : ArithLogicR<0x00, 0x26, "xor", xor, IIAlu, CPU64Regs, 1>;
106 def NOR64 : LogicNOR<0x00, 0x27, "nor", CPU64Regs>;
108 /// Shift Instructions
109 def DSLL : shift_rotate_imm64<0x38, 0x00, "dsll", shl>;
110 def DSRL : shift_rotate_imm64<0x3a, 0x00, "dsrl", srl>;
111 def DSRA : shift_rotate_imm64<0x3b, 0x00, "dsra", sra>;
112 def DSLLV : shift_rotate_reg<0x14, 0x00, "dsllv", shl, CPU64Regs>;
113 def DSRLV : shift_rotate_reg<0x16, 0x00, "dsrlv", srl, CPU64Regs>;
114 def DSRAV : shift_rotate_reg<0x17, 0x00, "dsrav", sra, CPU64Regs>;
115 let Pattern = []<dag> in {
116 def DSLL32 : shift_rotate_imm64<0x3c, 0x00, "dsll32", shl>;
117 def DSRL32 : shift_rotate_imm64<0x3e, 0x00, "dsrl32", srl>;
118 def DSRA32 : shift_rotate_imm64<0x3f, 0x00, "dsra32", sra>;
121 // Rotate Instructions
122 let Predicates = [HasMips64r2, HasStandardEncoding],
123 DecoderNamespace = "Mips64" in {
124 def DROTR : shift_rotate_imm64<0x3a, 0x01, "drotr", rotr>;
125 def DROTRV : shift_rotate_reg<0x16, 0x01, "drotrv", rotr, CPU64Regs>;
128 let DecoderNamespace = "Mips64" in {
129 /// Load and Store Instructions
131 defm LB64 : LoadM64<0x20, "lb", sextloadi8>;
132 defm LBu64 : LoadM64<0x24, "lbu", zextloadi8>;
133 defm LH64 : LoadM64<0x21, "lh", sextloadi16>;
134 defm LHu64 : LoadM64<0x25, "lhu", zextloadi16>;
135 defm LW64 : LoadM64<0x23, "lw", sextloadi32>;
136 defm LWu64 : LoadM64<0x27, "lwu", zextloadi32>;
137 defm SB64 : StoreM64<0x28, "sb", truncstorei8>;
138 defm SH64 : StoreM64<0x29, "sh", truncstorei16>;
139 defm SW64 : StoreM64<0x2b, "sw", truncstorei32>;
140 defm LD : LoadM64<0x37, "ld", load>;
141 defm SD : StoreM64<0x3f, "sd", store>;
143 /// load/store left/right
144 let isCodeGenOnly = 1 in {
145 defm LWL64 : LoadLeftRightM64<0x22, "lwl", MipsLWL>;
146 defm LWR64 : LoadLeftRightM64<0x26, "lwr", MipsLWR>;
147 defm SWL64 : StoreLeftRightM64<0x2a, "swl", MipsSWL>;
148 defm SWR64 : StoreLeftRightM64<0x2e, "swr", MipsSWR>;
150 defm LDL : LoadLeftRightM64<0x1a, "ldl", MipsLDL>;
151 defm LDR : LoadLeftRightM64<0x1b, "ldr", MipsLDR>;
152 defm SDL : StoreLeftRightM64<0x2c, "sdl", MipsSDL>;
153 defm SDR : StoreLeftRightM64<0x2d, "sdr", MipsSDR>;
155 /// Load-linked, Store-conditional
156 def LLD : LLBase<0x34, "lld", CPU64Regs, mem>,
157 Requires<[NotN64, HasStandardEncoding]>;
158 def LLD_P8 : LLBase<0x34, "lld", CPU64Regs, mem64>,
159 Requires<[IsN64, HasStandardEncoding]> {
160 let isCodeGenOnly = 1;
162 def SCD : SCBase<0x3c, "scd", CPU64Regs, mem>,
163 Requires<[NotN64, HasStandardEncoding]>;
164 def SCD_P8 : SCBase<0x3c, "scd", CPU64Regs, mem64>,
165 Requires<[IsN64, HasStandardEncoding]> {
166 let isCodeGenOnly = 1;
169 /// Jump and Branch Instructions
170 def JR64 : IndirectBranch<CPU64Regs>;
171 def BEQ64 : CBranch<0x04, "beq", seteq, CPU64Regs>;
172 def BNE64 : CBranch<0x05, "bne", setne, CPU64Regs>;
173 def BGEZ64 : CBranchZero<0x01, 1, "bgez", setge, CPU64Regs>;
174 def BGTZ64 : CBranchZero<0x07, 0, "bgtz", setgt, CPU64Regs>;
175 def BLEZ64 : CBranchZero<0x06, 0, "blez", setle, CPU64Regs>;
176 def BLTZ64 : CBranchZero<0x01, 0, "bltz", setlt, CPU64Regs>;
178 let DecoderNamespace = "Mips64" in
179 def JALR64 : JumpLinkReg<0x00, 0x09, "jalr", CPU64Regs>;
180 def TAILCALL64_R : JumpFR<CPU64Regs, MipsTailCall>, IsTailCall;
182 let DecoderNamespace = "Mips64" in {
183 /// Multiply and Divide Instructions.
184 def DMULT : Mult64<0x1c, "dmult", IIImul>;
185 def DMULTu : Mult64<0x1d, "dmultu", IIImul>;
186 def DSDIV : Div64<MipsDivRem, 0x1e, "ddiv", IIIdiv>;
187 def DUDIV : Div64<MipsDivRemU, 0x1f, "ddivu", IIIdiv>;
189 def MTHI64 : MoveToLOHI<0x11, "mthi", CPU64Regs, [HI64]>;
190 def MTLO64 : MoveToLOHI<0x13, "mtlo", CPU64Regs, [LO64]>;
191 def MFHI64 : MoveFromLOHI<0x10, "mfhi", CPU64Regs, [HI64]>;
192 def MFLO64 : MoveFromLOHI<0x12, "mflo", CPU64Regs, [LO64]>;
194 /// Sign Ext In Register Instructions.
195 def SEB64 : SignExtInReg<0x10, "seb", i8, CPU64Regs>;
196 def SEH64 : SignExtInReg<0x18, "seh", i16, CPU64Regs>;
199 def DCLZ : CountLeading0<0x24, "dclz", CPU64Regs>;
200 def DCLO : CountLeading1<0x25, "dclo", CPU64Regs>;
202 /// Double Word Swap Bytes/HalfWords
203 def DSBH : SubwordSwap<0x24, 0x2, "dsbh", CPU64Regs>;
204 def DSHD : SubwordSwap<0x24, 0x5, "dshd", CPU64Regs>;
206 def LEA_ADDiu64 : EffectiveAddress<0x19,"daddiu\t$rt, $addr", CPU64Regs, mem_ea_64>;
208 let Uses = [SP_64], DecoderNamespace = "Mips64" in
209 def DynAlloc64 : EffectiveAddress<0x19,"daddiu\t$rt, $addr", CPU64Regs, mem_ea_64>,
210 Requires<[IsN64, HasStandardEncoding]>;
211 let DecoderNamespace = "Mips64" in {
212 def RDHWR64 : ReadHardware<CPU64Regs, HWRegs64>;
214 def DEXT : ExtBase<3, "dext", CPU64Regs>;
215 let Pattern = []<dag> in {
216 def DEXTU : ExtBase<2, "dextu", CPU64Regs>;
217 def DEXTM : ExtBase<1, "dextm", CPU64Regs>;
219 def DINS : InsBase<7, "dins", CPU64Regs>;
220 let Pattern = []<dag> in {
221 def DINSU : InsBase<6, "dinsu", CPU64Regs>;
222 def DINSM : InsBase<5, "dinsm", CPU64Regs>;
225 let isCodeGenOnly = 1, rs = 0, shamt = 0 in {
226 def DSLL64_32 : FR<0x00, 0x3c, (outs CPU64Regs:$rd), (ins CPURegs:$rt),
227 "dsll\t$rd, $rt, 32", [], IIAlu>;
228 def SLL64_32 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPURegs:$rt),
229 "sll\t$rd, $rt, 0", [], IIAlu>;
230 def SLL64_64 : FR<0x0, 0x00, (outs CPU64Regs:$rd), (ins CPU64Regs:$rt),
231 "sll\t$rd, $rt, 0", [], IIAlu>;
234 //===----------------------------------------------------------------------===//
235 // Arbitrary patterns that map to one or more instructions
236 //===----------------------------------------------------------------------===//
239 let Predicates = [NotN64, HasStandardEncoding] in {
240 def : MipsPat<(i64 (extloadi1 addr:$src)), (LB64 addr:$src)>;
241 def : MipsPat<(i64 (extloadi8 addr:$src)), (LB64 addr:$src)>;
242 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64 addr:$src)>;
243 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64 addr:$src)>;
245 let Predicates = [IsN64, HasStandardEncoding] in {
246 def : MipsPat<(i64 (extloadi1 addr:$src)), (LB64_P8 addr:$src)>;
247 def : MipsPat<(i64 (extloadi8 addr:$src)), (LB64_P8 addr:$src)>;
248 def : MipsPat<(i64 (extloadi16 addr:$src)), (LH64_P8 addr:$src)>;
249 def : MipsPat<(i64 (extloadi32 addr:$src)), (LW64_P8 addr:$src)>;
253 def : MipsPat<(MipsHi tglobaladdr:$in), (LUi64 tglobaladdr:$in)>;
254 def : MipsPat<(MipsHi tblockaddress:$in), (LUi64 tblockaddress:$in)>;
255 def : MipsPat<(MipsHi tjumptable:$in), (LUi64 tjumptable:$in)>;
256 def : MipsPat<(MipsHi tconstpool:$in), (LUi64 tconstpool:$in)>;
257 def : MipsPat<(MipsHi tglobaltlsaddr:$in), (LUi64 tglobaltlsaddr:$in)>;
258 def : MipsPat<(MipsHi texternalsym:$in), (LUi64 texternalsym:$in)>;
260 def : MipsPat<(MipsLo tglobaladdr:$in), (DADDiu ZERO_64, tglobaladdr:$in)>;
261 def : MipsPat<(MipsLo tblockaddress:$in), (DADDiu ZERO_64, tblockaddress:$in)>;
262 def : MipsPat<(MipsLo tjumptable:$in), (DADDiu ZERO_64, tjumptable:$in)>;
263 def : MipsPat<(MipsLo tconstpool:$in), (DADDiu ZERO_64, tconstpool:$in)>;
264 def : MipsPat<(MipsLo tglobaltlsaddr:$in),
265 (DADDiu ZERO_64, tglobaltlsaddr:$in)>;
266 def : MipsPat<(MipsLo texternalsym:$in), (DADDiu ZERO_64, texternalsym:$in)>;
268 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tglobaladdr:$lo)),
269 (DADDiu CPU64Regs:$hi, tglobaladdr:$lo)>;
270 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tblockaddress:$lo)),
271 (DADDiu CPU64Regs:$hi, tblockaddress:$lo)>;
272 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tjumptable:$lo)),
273 (DADDiu CPU64Regs:$hi, tjumptable:$lo)>;
274 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tconstpool:$lo)),
275 (DADDiu CPU64Regs:$hi, tconstpool:$lo)>;
276 def : MipsPat<(add CPU64Regs:$hi, (MipsLo tglobaltlsaddr:$lo)),
277 (DADDiu CPU64Regs:$hi, tglobaltlsaddr:$lo)>;
279 def : WrapperPat<tglobaladdr, DADDiu, CPU64Regs>;
280 def : WrapperPat<tconstpool, DADDiu, CPU64Regs>;
281 def : WrapperPat<texternalsym, DADDiu, CPU64Regs>;
282 def : WrapperPat<tblockaddress, DADDiu, CPU64Regs>;
283 def : WrapperPat<tjumptable, DADDiu, CPU64Regs>;
284 def : WrapperPat<tglobaltlsaddr, DADDiu, CPU64Regs>;
286 defm : BrcondPats<CPU64Regs, BEQ64, BNE64, SLT64, SLTu64, SLTi64, SLTiu64,
290 defm : SeteqPats<CPU64Regs, SLTiu64, XOR64, SLTu64, ZERO_64>;
291 defm : SetlePats<CPU64Regs, SLT64, SLTu64>;
292 defm : SetgtPats<CPU64Regs, SLT64, SLTu64>;
293 defm : SetgePats<CPU64Regs, SLT64, SLTu64>;
294 defm : SetgeImmPats<CPU64Regs, SLTi64, SLTiu64>;
296 // select MipsDynAlloc
297 def : MipsPat<(MipsDynAlloc addr:$f), (DynAlloc64 addr:$f)>,
298 Requires<[IsN64, HasStandardEncoding]>;
301 def : MipsPat<(i32 (trunc CPU64Regs:$src)),
302 (SLL (EXTRACT_SUBREG CPU64Regs:$src, sub_32), 0)>,
303 Requires<[IsN64, HasStandardEncoding]>;
305 // 32-to-64-bit extension
306 def : MipsPat<(i64 (anyext CPURegs:$src)), (SLL64_32 CPURegs:$src)>;
307 def : MipsPat<(i64 (zext CPURegs:$src)), (DSRL (DSLL64_32 CPURegs:$src), 32)>;
308 def : MipsPat<(i64 (sext CPURegs:$src)), (SLL64_32 CPURegs:$src)>;
310 // Sign extend in register
311 def : MipsPat<(i64 (sext_inreg CPU64Regs:$src, i32)),
312 (SLL64_64 CPU64Regs:$src)>;
315 def : MipsPat<(bswap CPU64Regs:$rt), (DSHD (DSBH CPU64Regs:$rt))>;
317 //===----------------------------------------------------------------------===//
318 // Instruction aliases
319 //===----------------------------------------------------------------------===//
320 def : InstAlias<"move $dst,$src", (DADD CPU64Regs:$dst,CPU64Regs:$src,ZERO_64)>;
322 /// Move between CPU and coprocessor registers
323 let DecoderNamespace = "Mips64" in {
324 def MFC0_3OP64 : MFC3OP<0x10, 0, (outs CPU64Regs:$rt),
325 (ins CPU64Regs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
326 def MTC0_3OP64 : MFC3OP<0x10, 4, (outs CPU64Regs:$rd, uimm16:$sel),
327 (ins CPU64Regs:$rt),"mtc0\t$rt, $rd, $sel">;
328 def MFC2_3OP64 : MFC3OP<0x12, 0, (outs CPU64Regs:$rt),
329 (ins CPU64Regs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
330 def MTC2_3OP64 : MFC3OP<0x12, 4, (outs CPU64Regs:$rd, uimm16:$sel),
331 (ins CPU64Regs:$rt),"mtc2\t$rt, $rd, $sel">;
332 def DMFC0_3OP64 : MFC3OP<0x10, 1, (outs CPU64Regs:$rt),
333 (ins CPU64Regs:$rd, uimm16:$sel),"dmfc0\t$rt, $rd, $sel">;
334 def DMTC0_3OP64 : MFC3OP<0x10, 5, (outs CPU64Regs:$rd, uimm16:$sel),
335 (ins CPU64Regs:$rt),"dmtc0\t$rt, $rd, $sel">;
336 def DMFC2_3OP64 : MFC3OP<0x12, 1, (outs CPU64Regs:$rt),
337 (ins CPU64Regs:$rd, uimm16:$sel),"dmfc2\t$rt, $rd, $sel">;
338 def DMTC2_3OP64 : MFC3OP<0x12, 5, (outs CPU64Regs:$rd, uimm16:$sel),
339 (ins CPU64Regs:$rt),"dmtc2\t$rt, $rd, $sel">;
341 // Two operand (implicit 0 selector) versions:
342 def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
343 def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;
344 def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
345 def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;
346 def : InstAlias<"dmfc0 $rt, $rd", (DMFC0_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
347 def : InstAlias<"dmtc0 $rt, $rd", (DMTC0_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;
348 def : InstAlias<"dmfc2 $rt, $rd", (DMFC2_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
349 def : InstAlias<"dmtc2 $rt, $rd", (DMTC2_3OP64 CPU64Regs:$rd, 0, CPU64Regs:$rt)>;