1 //=- Mips64r6InstrInfo.td - Mips64r6 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 Mips64r6 instructions.
12 //===----------------------------------------------------------------------===//
14 // Notes about removals/changes from MIPS32r6:
15 // Reencoded: dclo, dclz
17 //===----------------------------------------------------------------------===//
19 // Instruction Encodings
21 //===----------------------------------------------------------------------===//
23 class DALIGN_ENC : SPECIAL3_DALIGN_FM<OPCODE6_DALIGN>;
24 class DAUI_ENC : DAUI_FM;
25 class DAHI_ENC : REGIMM_FM<OPCODE5_DAHI>;
26 class DATI_ENC : REGIMM_FM<OPCODE5_DATI>;
27 class DBITSWAP_ENC : SPECIAL3_2R_FM<OPCODE6_DBITSWAP>;
28 class DCLO_R6_ENC : SPECIAL_2R_FM<OPCODE6_DCLO>;
29 class DCLZ_R6_ENC : SPECIAL_2R_FM<OPCODE6_DCLZ>;
30 class DDIV_ENC : SPECIAL_3R_FM<0b00010, 0b011110>;
31 class DDIVU_ENC : SPECIAL_3R_FM<0b00010, 0b011111>;
32 class DLSA_R6_ENC : SPECIAL_LSA_FM<OPCODE6_DLSA>;
33 class DMOD_ENC : SPECIAL_3R_FM<0b00011, 0b011110>;
34 class DMODU_ENC : SPECIAL_3R_FM<0b00011, 0b011111>;
35 class DMUH_ENC : SPECIAL_3R_FM<0b00011, 0b011100>;
36 class DMUHU_ENC : SPECIAL_3R_FM<0b00011, 0b011101>;
37 class DMUL_R6_ENC : SPECIAL_3R_FM<0b00010, 0b011100>;
38 class DMULU_ENC : SPECIAL_3R_FM<0b00010, 0b011101>;
39 class LDPC_ENC : PCREL18_FM<OPCODE3_LDPC>;
40 class LLD_R6_ENC : SPECIAL3_LL_SC_FM<OPCODE6_LLD>;
41 class SCD_R6_ENC : SPECIAL3_LL_SC_FM<OPCODE6_SCD>;
42 class CRC32D_ENC : SPECIAL3_2R_SZ_CRC<3,0>;
43 class CRC32CD_ENC : SPECIAL3_2R_SZ_CRC<3,1>;
45 //===----------------------------------------------------------------------===//
47 // Instruction Descriptions
49 //===----------------------------------------------------------------------===//
51 class AHI_ATI_DESC_BASE<string instr_asm, RegisterOperand GPROpnd, InstrItinClass itin> {
52 dag OutOperandList = (outs GPROpnd:$rs);
53 dag InOperandList = (ins GPROpnd:$rt, uimm16_altrelaxed:$imm);
54 string AsmString = !strconcat(instr_asm, "\t$rs, $rt, $imm");
55 string Constraints = "$rs = $rt";
56 InstrItinClass Itinerary = itin;
59 class DALIGN_DESC : ALIGN_DESC_BASE<"dalign", GPR64Opnd, uimm3, II_DALIGN>;
60 class DAHI_DESC : AHI_ATI_DESC_BASE<"dahi", GPR64Opnd, II_DAHI>;
61 class DATI_DESC : AHI_ATI_DESC_BASE<"dati", GPR64Opnd, II_DATI>;
62 class DAUI_DESC : AUI_DESC_BASE<"daui", GPR64Opnd, II_DAUI>;
63 class DBITSWAP_DESC : BITSWAP_DESC_BASE<"dbitswap", GPR64Opnd, II_DBITSWAP>;
64 class DCLO_R6_DESC : CLO_R6_DESC_BASE<"dclo", GPR64Opnd, II_DCLO>;
65 class DCLZ_R6_DESC : CLZ_R6_DESC_BASE<"dclz", GPR64Opnd, II_DCLZ>;
66 class DDIV_DESC : DIVMOD_DESC_BASE<"ddiv", GPR64Opnd, II_DDIV, sdiv>;
67 class DDIVU_DESC : DIVMOD_DESC_BASE<"ddivu", GPR64Opnd, II_DDIVU, udiv>;
68 class DLSA_R6_DESC : LSA_R6_DESC_BASE<"dlsa", GPR64Opnd, uimm2_plus1, II_DLSA>;
69 class DMOD_DESC : DIVMOD_DESC_BASE<"dmod", GPR64Opnd, II_DMOD, srem>;
70 class DMODU_DESC : DIVMOD_DESC_BASE<"dmodu", GPR64Opnd, II_DMODU, urem>;
71 class DMUH_DESC : MUL_R6_DESC_BASE<"dmuh", GPR64Opnd, II_DMUH, mulhs>;
72 class DMUHU_DESC : MUL_R6_DESC_BASE<"dmuhu", GPR64Opnd, II_DMUHU, mulhu>;
73 class DMUL_R6_DESC : MUL_R6_DESC_BASE<"dmul", GPR64Opnd, II_DMUL, mul>;
74 class DMULU_DESC : MUL_R6_DESC_BASE<"dmulu", GPR64Opnd, II_DMUL>;
75 class LDPC_DESC : PCREL_DESC_BASE<"ldpc", GPR64Opnd, simm18_lsl3, II_LDPC>;
76 class LLD_R6_DESC : LL_R6_DESC_BASE<"lld", GPR64Opnd, mem_simmptr, II_LLD>;
77 class SCD_R6_DESC : SC_R6_DESC_BASE<"scd", GPR64Opnd, II_SCD>;
78 class SELEQZ64_DESC : SELEQNE_Z_DESC_BASE<"seleqz", GPR64Opnd>;
79 class SELNEZ64_DESC : SELEQNE_Z_DESC_BASE<"selnez", GPR64Opnd>;
81 class BGEC64_DESC : CMP_BC_DESC_BASE<"bgec", brtarget, GPR64Opnd>;
82 class BGEUC64_DESC : CMP_BC_DESC_BASE<"bgeuc", brtarget, GPR64Opnd>;
83 class BEQC64_DESC : CMP_BC_DESC_BASE<"beqc", brtarget, GPR64Opnd>;
84 class BNEC64_DESC : CMP_BC_DESC_BASE<"bnec", brtarget, GPR64Opnd>;
85 class BLTC64_DESC : CMP_BC_DESC_BASE<"bltc", brtarget, GPR64Opnd>;
86 class BLTUC64_DESC : CMP_BC_DESC_BASE<"bltuc", brtarget, GPR64Opnd>;
87 class BLTZC64_DESC : CMP_CBR_RT_Z_DESC_BASE<"bltzc", brtarget, GPR64Opnd>;
88 class BGEZC64_DESC : CMP_CBR_RT_Z_DESC_BASE<"bgezc", brtarget, GPR64Opnd>;
89 class BLEZC64_DESC : CMP_CBR_RT_Z_DESC_BASE<"blezc", brtarget, GPR64Opnd>;
90 class BGTZC64_DESC : CMP_CBR_RT_Z_DESC_BASE<"bgtzc", brtarget, GPR64Opnd>;
91 class BEQZC64_DESC : CMP_CBR_EQNE_Z_DESC_BASE<"beqzc", brtarget21, GPR64Opnd>;
92 class BNEZC64_DESC : CMP_CBR_EQNE_Z_DESC_BASE<"bnezc", brtarget21, GPR64Opnd>;
94 class JIALC64_DESC : JMP_IDX_COMPACT_DESC_BASE<"jialc", calloffset16,
95 GPR64Opnd, II_JIALC> {
97 list<Register> Defs = [RA];
100 class JIC64_DESC : JMP_IDX_COMPACT_DESC_BASE<"jic", jmpoffset16, GPR64Opnd,
103 bit isTerminator = 1;
104 list<Register> Defs = [AT];
107 class LL64_R6_DESC : LL_R6_DESC_BASE<"ll", GPR32Opnd, mem_simm9, II_LL>;
108 class SC64_R6_DESC : SC_R6_DESC_BASE<"sc", GPR32Opnd, II_SC>;
110 class JR_HB64_R6_DESC : JR_HB_DESC_BASE<"jr.hb", GPR64Opnd> {
112 bit isIndirectBranch = 1;
113 bit hasDelaySlot = 1;
117 InstrItinClass Itinerary = II_JR_HB;
120 class CRC32D_DESC : CRC_DESC_BASE<"crc32d", GPR32Opnd, II_CRC32D>;
121 class CRC32CD_DESC : CRC_DESC_BASE<"crc32cd", GPR32Opnd, II_CRC32CD>;
123 //===----------------------------------------------------------------------===//
125 // Instruction Definitions
127 //===----------------------------------------------------------------------===//
129 let AdditionalPredicates = [NotInMicroMips] in {
130 let DecoderMethod = "DecodeDAHIDATI" in {
131 def DATI : DATI_ENC, DATI_DESC, ISA_MIPS64R6;
132 def DAHI : DAHI_ENC, DAHI_DESC, ISA_MIPS64R6;
134 def DAUI : DAUI_ENC, DAUI_DESC, ISA_MIPS64R6;
135 def DALIGN : DALIGN_ENC, DALIGN_DESC, ISA_MIPS64R6;
136 def DBITSWAP : DBITSWAP_ENC, DBITSWAP_DESC, ISA_MIPS64R6;
137 def DCLO_R6 : DCLO_R6_ENC, DCLO_R6_DESC, ISA_MIPS64R6;
138 def DCLZ_R6 : DCLZ_R6_ENC, DCLZ_R6_DESC, ISA_MIPS64R6;
139 def DDIV : DDIV_ENC, DDIV_DESC, ISA_MIPS64R6;
140 def DDIVU : DDIVU_ENC, DDIVU_DESC, ISA_MIPS64R6;
141 def DMOD : DMOD_ENC, DMOD_DESC, ISA_MIPS64R6;
142 def DMODU : DMODU_ENC, DMODU_DESC, ISA_MIPS64R6;
143 def DLSA_R6 : DLSA_R6_ENC, DLSA_R6_DESC, ISA_MIPS64R6;
144 def DMUH: DMUH_ENC, DMUH_DESC, ISA_MIPS64R6;
145 def DMUHU: DMUHU_ENC, DMUHU_DESC, ISA_MIPS64R6;
146 def DMUL_R6: DMUL_R6_ENC, DMUL_R6_DESC, ISA_MIPS64R6;
147 def DMULU: DMULU_ENC, DMULU_DESC, ISA_MIPS64R6;
148 def LLD_R6 : LLD_R6_ENC, LLD_R6_DESC, ISA_MIPS64R6;
150 def LDPC: LDPC_ENC, LDPC_DESC, ISA_MIPS64R6;
151 def SCD_R6 : SCD_R6_ENC, SCD_R6_DESC, ISA_MIPS32R6;
152 let DecoderNamespace = "Mips32r6_64r6_GP64" in {
153 def SELEQZ64 : SELEQZ_ENC, SELEQZ64_DESC, ISA_MIPS32R6, GPR_64;
154 def SELNEZ64 : SELNEZ_ENC, SELNEZ64_DESC, ISA_MIPS32R6, GPR_64;
155 def JR_HB64_R6 : JR_HB_R6_ENC, JR_HB64_R6_DESC, ISA_MIPS32R6;
157 let AdditionalPredicates = [NotInMicroMips],
158 DecoderNamespace = "Mips32r6_64r6_PTR64" in {
159 def LL64_R6 : LL_R6_ENC, LL64_R6_DESC, PTR_64, ISA_MIPS64R6;
160 def SC64_R6 : SC_R6_ENC, SC64_R6_DESC, PTR_64, ISA_MIPS64R6;
163 let DecoderNamespace = "Mips32r6_64r6_GP64" in {
164 // Jump and Branch Instructions
165 def JIALC64 : JIALC_ENC, JIALC64_DESC, ISA_MIPS64R6, GPR_64;
166 def JIC64 : JIC_ENC, JIC64_DESC, ISA_MIPS64R6, GPR_64;
168 def BEQC64 : BEQC_ENC, BEQC64_DESC, ISA_MIPS64R6, GPR_64;
169 def BEQZC64 : BEQZC_ENC, BEQZC64_DESC, ISA_MIPS64R6, GPR_64;
170 def BGEC64 : BGEC_ENC, BGEC64_DESC, ISA_MIPS64R6, GPR_64;
171 def BGEUC64 : BGEUC_ENC, BGEUC64_DESC, ISA_MIPS64R6, GPR_64;
172 def BGTZC64 : BGTZC_ENC, BGTZC64_DESC, ISA_MIPS64R6, GPR_64;
173 def BLEZC64 : BLEZC_ENC, BLEZC64_DESC, ISA_MIPS64R6, GPR_64;
174 def BLTC64 : BLTC_ENC, BLTC64_DESC, ISA_MIPS64R6, GPR_64;
175 def BLTUC64 : BLTUC_ENC, BLTUC64_DESC, ISA_MIPS64R6, GPR_64;
176 def BNEC64 : BNEC_ENC, BNEC64_DESC, ISA_MIPS64R6, GPR_64;
177 def BNEZC64 : BNEZC_ENC, BNEZC64_DESC, ISA_MIPS64R6, GPR_64;
179 let DecoderNamespace = "Mips32r6_64r6_BranchZero" in {
180 def BLTZC64 : BLTZC_ENC, BLTZC64_DESC, ISA_MIPS64R6, GPR_64;
181 def BGEZC64 : BGEZC_ENC, BGEZC64_DESC, ISA_MIPS64R6, GPR_64;
183 let AdditionalPredicates = [NotInMicroMips] in {
184 def CRC32D : R6MMR6Rel, CRC32D_ENC, CRC32D_DESC, ISA_MIPS64R6, ASE_CRC;
185 def CRC32CD : R6MMR6Rel, CRC32CD_ENC, CRC32CD_DESC, ISA_MIPS64R6, ASE_CRC;
188 //===----------------------------------------------------------------------===//
190 // Instruction Aliases
192 //===----------------------------------------------------------------------===//
194 def : MipsInstAlias<"jr $rs", (JALR64 ZERO_64, GPR64Opnd:$rs), 1>, ISA_MIPS64R6;
196 def : MipsInstAlias<"jrc $rs", (JIC64 GPR64Opnd:$rs, 0), 1>, ISA_MIPS64R6;
198 def : MipsInstAlias<"jalrc $rs", (JIALC64 GPR64Opnd:$rs, 0), 1>, ISA_MIPS64R6;
199 //===----------------------------------------------------------------------===//
201 // Patterns and Pseudo Instructions
203 //===----------------------------------------------------------------------===//
206 def : MipsPat<(select i64:$cond, i64:$t, i64:$f),
207 (OR64 (SELNEZ64 i64:$t, i64:$cond),
208 (SELEQZ64 i64:$f, i64:$cond))>,
210 def : MipsPat<(select (i32 (seteq i64:$cond, immz)), i64:$t, i64:$f),
211 (OR64 (SELEQZ64 i64:$t, i64:$cond),
212 (SELNEZ64 i64:$f, i64:$cond))>,
214 def : MipsPat<(select (i32 (setne i64:$cond, immz)), i64:$t, i64:$f),
215 (OR64 (SELNEZ64 i64:$t, i64:$cond),
216 (SELEQZ64 i64:$f, i64:$cond))>,
218 def : MipsPat<(select (i32 (seteq i64:$cond, immZExt16_64:$imm)), i64:$t, i64:$f),
219 (OR64 (SELEQZ64 i64:$t, (XORi64 i64:$cond, immZExt16_64:$imm)),
220 (SELNEZ64 i64:$f, (XORi64 i64:$cond, immZExt16_64:$imm)))>,
222 def : MipsPat<(select (i32 (setne i64:$cond, immZExt16_64:$imm)), i64:$t, i64:$f),
223 (OR64 (SELNEZ64 i64:$t, (XORi64 i64:$cond, immZExt16_64:$imm)),
224 (SELEQZ64 i64:$f, (XORi64 i64:$cond, immZExt16_64:$imm)))>,
227 (select (i32 (setgt i64:$cond, immSExt16Plus1:$imm)), i64:$t, i64:$f),
228 (OR64 (SELEQZ64 i64:$t,
229 (SUBREG_TO_REG (i64 0), (SLTi64 i64:$cond, (Plus1 imm:$imm)),
232 (SUBREG_TO_REG (i64 0), (SLTi64 i64:$cond, (Plus1 imm:$imm)),
236 (select (i32 (setugt i64:$cond, immSExt16Plus1:$imm)), i64:$t, i64:$f),
237 (OR64 (SELEQZ64 i64:$t,
238 (SUBREG_TO_REG (i64 0), (SLTiu64 i64:$cond, (Plus1 imm:$imm)),
241 (SUBREG_TO_REG (i64 0), (SLTiu64 i64:$cond, (Plus1 imm:$imm)),
245 def : MipsPat<(select (i32 (setne i64:$cond, immz)), i64:$t, immz),
246 (SELNEZ64 i64:$t, i64:$cond)>, ISA_MIPS64R6;
247 def : MipsPat<(select (i32 (seteq i64:$cond, immz)), i64:$t, immz),
248 (SELEQZ64 i64:$t, i64:$cond)>, ISA_MIPS64R6;
249 def : MipsPat<(select (i32 (setne i64:$cond, immz)), immz, i64:$f),
250 (SELEQZ64 i64:$f, i64:$cond)>, ISA_MIPS64R6;
251 def : MipsPat<(select (i32 (seteq i64:$cond, immz)), immz, i64:$f),
252 (SELNEZ64 i64:$f, i64:$cond)>, ISA_MIPS64R6;
254 // i64 selects from an i32 comparison
255 // One complicating factor here is that bits 32-63 of an i32 are undefined.
256 // FIXME: Ideally, setcc would always produce an i64 on MIPS64 targets.
257 // This would allow us to remove the sign-extensions here.
258 def : MipsPat<(select i32:$cond, i64:$t, i64:$f),
259 (OR64 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond)),
260 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond)))>,
262 def : MipsPat<(select (i32 (seteq i32:$cond, immz)), i64:$t, i64:$f),
263 (OR64 (SELEQZ64 i64:$t, (SLL64_32 i32:$cond)),
264 (SELNEZ64 i64:$f, (SLL64_32 i32:$cond)))>,
266 def : MipsPat<(select (i32 (setne i32:$cond, immz)), i64:$t, i64:$f),
267 (OR64 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond)),
268 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond)))>,
270 def : MipsPat<(select (i32 (seteq i32:$cond, immZExt16:$imm)), i64:$t, i64:$f),
271 (OR64 (SELEQZ64 i64:$t, (SLL64_32 (XORi i32:$cond,
273 (SELNEZ64 i64:$f, (SLL64_32 (XORi i32:$cond,
276 def : MipsPat<(select (i32 (setne i32:$cond, immZExt16:$imm)), i64:$t, i64:$f),
277 (OR64 (SELNEZ64 i64:$t, (SLL64_32 (XORi i32:$cond,
279 (SELEQZ64 i64:$f, (SLL64_32 (XORi i32:$cond,
283 def : MipsPat<(select i32:$cond, i64:$t, immz),
284 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond))>,
286 def : MipsPat<(select (i32 (setne i32:$cond, immz)), i64:$t, immz),
287 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond))>,
289 def : MipsPat<(select (i32 (seteq i32:$cond, immz)), i64:$t, immz),
290 (SELEQZ64 i64:$t, (SLL64_32 i32:$cond))>,
292 def : MipsPat<(select i32:$cond, immz, i64:$f),
293 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond))>,
295 def : MipsPat<(select (i32 (setne i32:$cond, immz)), immz, i64:$f),
296 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond))>,
298 def : MipsPat<(select (i32 (seteq i32:$cond, immz)), immz, i64:$f),
299 (SELNEZ64 i64:$f, (SLL64_32 i32:$cond))>,
302 // Patterns used for matching away redundant sign extensions.
303 // MIPS32 arithmetic instructions sign extend their result implicitly.
304 def : MipsPat<(i64 (sext (i32 (mul GPR32:$src, GPR32:$src2)))),
305 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
306 (MUL_R6 GPR32:$src, GPR32:$src2), sub_32)>, ISA_MIPS64R6;
307 def : MipsPat<(i64 (sext (i32 (sdiv GPR32:$src, GPR32:$src2)))),
308 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
309 (DIV GPR32:$src, GPR32:$src2), sub_32)>, ISA_MIPS64R6;
310 def : MipsPat<(i64 (sext (i32 (udiv GPR32:$src, GPR32:$src2)))),
311 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
312 (DIVU GPR32:$src, GPR32:$src2), sub_32)>, ISA_MIPS64R6;
313 def : MipsPat<(i64 (sext (i32 (srem GPR32:$src, GPR32:$src2)))),
314 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
315 (MOD GPR32:$src, GPR32:$src2), sub_32)>, ISA_MIPS64R6;
316 def : MipsPat<(i64 (sext (i32 (urem GPR32:$src, GPR32:$src2)))),
317 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
318 (MODU GPR32:$src, GPR32:$src2), sub_32)>, ISA_MIPS64R6;
320 // Pseudo instructions
322 let AdditionalPredicates = [NotInMips16Mode, NotInMicroMips,
323 NoIndirectJumpGuards] in {
324 def TAILCALL64R6REG : TailCallRegR6<JALR64, ZERO_64, GPR64Opnd>, ISA_MIPS64R6;
325 def PseudoIndirectBranch64R6 : PseudoIndirectBranchBaseR6<JALR64, ZERO_64,
330 let AdditionalPredicates = [NotInMips16Mode, NotInMicroMips,
331 UseIndirectJumpsHazard] in {
332 def TAILCALLHB64R6REG : TailCallReg<JR_HB64_R6, GPR64Opnd>,
334 def PseudoIndrectHazardBranch64R6 : PseudoIndirectBranchBase<JR_HB64_R6,