1 //===-- MipsInstrFPU.td - Mips FPU Instruction Information -*- tablegen -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file describes the Mips FPU instruction set. 11 // 12 //===----------------------------------------------------------------------===// 13 14 //===----------------------------------------------------------------------===// 15 // Floating Point Instructions 16 // ------------------------ 17 // * 64bit fp: 18 // - 32 64-bit registers (default mode) 19 // - 16 even 32-bit registers (32-bit compatible mode) for 20 // single and double access. 21 // * 32bit fp: 22 // - 16 even 32-bit registers - single and double (aliased) 23 // - 32 32-bit registers (within single-only mode) 24 //===----------------------------------------------------------------------===// 25 26 // Floating Point Compare and Branch 27 def SDT_MipsFPBrcond : SDTypeProfile<0, 3, [SDTCisInt<0>, 28 SDTCisVT<1, i32>, 29 SDTCisVT<2, OtherVT>]>; 30 def SDT_MipsFPCmp : SDTypeProfile<0, 3, [SDTCisSameAs<0, 1>, SDTCisFP<1>, 31 SDTCisVT<2, i32>]>; 32 def SDT_MipsCMovFP : SDTypeProfile<1, 3, [SDTCisSameAs<0, 1>, SDTCisVT<2, i32>, 33 SDTCisSameAs<1, 3>]>; 34 def SDT_MipsTruncIntFP : SDTypeProfile<1, 1, [SDTCisFP<0>, SDTCisFP<1>]>; 35 def SDT_MipsBuildPairF64 : SDTypeProfile<1, 2, [SDTCisVT<0, f64>, 36 SDTCisVT<1, i32>, 37 SDTCisSameAs<1, 2>]>; 38 def SDT_MipsExtractElementF64 : SDTypeProfile<1, 2, [SDTCisVT<0, i32>, 39 SDTCisVT<1, f64>, 40 SDTCisVT<2, i32>]>; 41 42 def MipsFPCmp : SDNode<"MipsISD::FPCmp", SDT_MipsFPCmp, [SDNPOutGlue]>; 43 def MipsCMovFP_T : SDNode<"MipsISD::CMovFP_T", SDT_MipsCMovFP, [SDNPInGlue]>; 44 def MipsCMovFP_F : SDNode<"MipsISD::CMovFP_F", SDT_MipsCMovFP, [SDNPInGlue]>; 45 def MipsFPBrcond : SDNode<"MipsISD::FPBrcond", SDT_MipsFPBrcond, 46 [SDNPHasChain, SDNPOptInGlue]>; 47 def MipsTruncIntFP : SDNode<"MipsISD::TruncIntFP", SDT_MipsTruncIntFP>; 48 def MipsBuildPairF64 : SDNode<"MipsISD::BuildPairF64", SDT_MipsBuildPairF64>; 49 def MipsExtractElementF64 : SDNode<"MipsISD::ExtractElementF64", 50 SDT_MipsExtractElementF64>; 51 52 // Operand for printing out a condition code. 53 let PrintMethod = "printFCCOperand", DecoderMethod = "DecodeCondCode" in 54 def condcode : Operand<i32>; 55 56 //===----------------------------------------------------------------------===// 57 // Feature predicates. 58 //===----------------------------------------------------------------------===// 59 60 def IsFP64bit : Predicate<"Subtarget->isFP64bit()">, 61 AssemblerPredicate<"FeatureFP64Bit">; 62 def NotFP64bit : Predicate<"!Subtarget->isFP64bit()">, 63 AssemblerPredicate<"!FeatureFP64Bit">; 64 def IsSingleFloat : Predicate<"Subtarget->isSingleFloat()">, 65 AssemblerPredicate<"FeatureSingleFloat">; 66 def IsNotSingleFloat : Predicate<"!Subtarget->isSingleFloat()">, 67 AssemblerPredicate<"!FeatureSingleFloat">; 68 def IsNotSoftFloat : Predicate<"!Subtarget->useSoftFloat()">, 69 AssemblerPredicate<"!FeatureSoftFloat">; 70 71 //===----------------------------------------------------------------------===// 72 // Mips FGR size adjectives. 73 // They are mutually exclusive. 74 //===----------------------------------------------------------------------===// 75 76 class FGR_32 { list<Predicate> FGRPredicates = [NotFP64bit]; } 77 class FGR_64 { list<Predicate> FGRPredicates = [IsFP64bit]; } 78 class HARDFLOAT { list<Predicate> HardFloatPredicate = [IsNotSoftFloat]; } 79 80 //===----------------------------------------------------------------------===// 81 82 // FP immediate patterns. 83 def fpimm0 : PatLeaf<(fpimm), [{ 84 return N->isExactlyValue(+0.0); 85 }]>; 86 87 def fpimm0neg : PatLeaf<(fpimm), [{ 88 return N->isExactlyValue(-0.0); 89 }]>; 90 91 //===----------------------------------------------------------------------===// 92 // Instruction Class Templates 93 // 94 // A set of multiclasses is used to address the register usage. 95 // 96 // S32 - single precision in 16 32bit even fp registers 97 // single precision in 32 32bit fp registers in SingleOnly mode 98 // S64 - single precision in 32 64bit fp registers (In64BitMode) 99 // D32 - double precision in 16 32bit even fp registers 100 // D64 - double precision in 32 64bit fp registers (In64BitMode) 101 // 102 // Only S32 and D32 are supported right now. 103 //===----------------------------------------------------------------------===// 104 class ADDS_FT<string opstr, RegisterOperand RC, InstrItinClass Itin, bit IsComm, 105 SDPatternOperator OpNode= null_frag> : 106 InstSE<(outs RC:$fd), (ins RC:$fs, RC:$ft), 107 !strconcat(opstr, "\t$fd, $fs, $ft"), 108 [(set RC:$fd, (OpNode RC:$fs, RC:$ft))], Itin, FrmFR, opstr>, 109 HARDFLOAT { 110 let isCommutable = IsComm; 111 } 112 113 multiclass ADDS_M<string opstr, InstrItinClass Itin, bit IsComm, 114 SDPatternOperator OpNode = null_frag> { 115 def _D32 : MMRel, ADDS_FT<opstr, AFGR64Opnd, Itin, IsComm, OpNode>, FGR_32; 116 def _D64 : ADDS_FT<opstr, FGR64Opnd, Itin, IsComm, OpNode>, FGR_64 { 117 string DecoderNamespace = "Mips64"; 118 } 119 } 120 121 class ABSS_FT<string opstr, RegisterOperand DstRC, RegisterOperand SrcRC, 122 InstrItinClass Itin, SDPatternOperator OpNode= null_frag> : 123 InstSE<(outs DstRC:$fd), (ins SrcRC:$fs), !strconcat(opstr, "\t$fd, $fs"), 124 [(set DstRC:$fd, (OpNode SrcRC:$fs))], Itin, FrmFR, opstr>, 125 HARDFLOAT, 126 NeverHasSideEffects; 127 128 multiclass ABSS_M<string opstr, InstrItinClass Itin, 129 SDPatternOperator OpNode= null_frag> { 130 def _D32 : MMRel, ABSS_FT<opstr, AFGR64Opnd, AFGR64Opnd, Itin, OpNode>, 131 FGR_32; 132 def _D64 : ABSS_FT<opstr, FGR64Opnd, FGR64Opnd, Itin, OpNode>, FGR_64 { 133 string DecoderNamespace = "Mips64"; 134 } 135 } 136 137 multiclass ROUND_M<string opstr, InstrItinClass Itin> { 138 def _D32 : MMRel, ABSS_FT<opstr, FGR32Opnd, AFGR64Opnd, Itin>, FGR_32; 139 def _D64 : StdMMR6Rel, ABSS_FT<opstr, FGR32Opnd, FGR64Opnd, Itin>, FGR_64 { 140 let DecoderNamespace = "Mips64"; 141 } 142 } 143 144 class MFC1_FT<string opstr, RegisterOperand DstRC, RegisterOperand SrcRC, 145 InstrItinClass Itin, SDPatternOperator OpNode= null_frag> : 146 InstSE<(outs DstRC:$rt), (ins SrcRC:$fs), !strconcat(opstr, "\t$rt, $fs"), 147 [(set DstRC:$rt, (OpNode SrcRC:$fs))], Itin, FrmFR, opstr>, HARDFLOAT; 148 149 class MTC1_FT<string opstr, RegisterOperand DstRC, RegisterOperand SrcRC, 150 InstrItinClass Itin, SDPatternOperator OpNode= null_frag> : 151 InstSE<(outs DstRC:$fs), (ins SrcRC:$rt), !strconcat(opstr, "\t$rt, $fs"), 152 [(set DstRC:$fs, (OpNode SrcRC:$rt))], Itin, FrmFR, opstr>, HARDFLOAT; 153 154 class MTC1_64_FT<string opstr, RegisterOperand DstRC, RegisterOperand SrcRC, 155 InstrItinClass Itin> : 156 InstSE<(outs DstRC:$fs), (ins DstRC:$fs_in, SrcRC:$rt), 157 !strconcat(opstr, "\t$rt, $fs"), [], Itin, FrmFR, opstr>, HARDFLOAT { 158 // $fs_in is part of a white lie to work around a widespread bug in the FPU 159 // implementation. See expandBuildPairF64 for details. 160 let Constraints = "$fs = $fs_in"; 161 } 162 163 class LW_FT<string opstr, RegisterOperand RC, DAGOperand MO, 164 InstrItinClass Itin, SDPatternOperator OpNode = null_frag> : 165 InstSE<(outs RC:$rt), (ins MO:$addr), !strconcat(opstr, "\t$rt, $addr"), 166 [(set RC:$rt, (OpNode addrDefault:$addr))], Itin, FrmFI, opstr>, 167 HARDFLOAT { 168 let DecoderMethod = "DecodeFMem"; 169 let mayLoad = 1; 170 } 171 172 class SW_FT<string opstr, RegisterOperand RC, DAGOperand MO, 173 InstrItinClass Itin, SDPatternOperator OpNode = null_frag> : 174 InstSE<(outs), (ins RC:$rt, MO:$addr), !strconcat(opstr, "\t$rt, $addr"), 175 [(OpNode RC:$rt, addrDefault:$addr)], Itin, FrmFI, opstr>, HARDFLOAT { 176 let DecoderMethod = "DecodeFMem"; 177 let mayStore = 1; 178 } 179 180 class MADDS_FT<string opstr, RegisterOperand RC, InstrItinClass Itin, 181 SDPatternOperator OpNode = null_frag> : 182 InstSE<(outs RC:$fd), (ins RC:$fr, RC:$fs, RC:$ft), 183 !strconcat(opstr, "\t$fd, $fr, $fs, $ft"), 184 [(set RC:$fd, (OpNode (fmul RC:$fs, RC:$ft), RC:$fr))], Itin, 185 FrmFR, opstr>, HARDFLOAT; 186 187 class NMADDS_FT<string opstr, RegisterOperand RC, InstrItinClass Itin, 188 SDPatternOperator OpNode = null_frag> : 189 InstSE<(outs RC:$fd), (ins RC:$fr, RC:$fs, RC:$ft), 190 !strconcat(opstr, "\t$fd, $fr, $fs, $ft"), 191 [(set RC:$fd, (fsub fpimm0, (OpNode (fmul RC:$fs, RC:$ft), RC:$fr)))], 192 Itin, FrmFR, opstr>, HARDFLOAT; 193 194 class LWXC1_FT<string opstr, RegisterOperand DRC, 195 InstrItinClass Itin, SDPatternOperator OpNode = null_frag> : 196 InstSE<(outs DRC:$fd), (ins PtrRC:$base, PtrRC:$index), 197 !strconcat(opstr, "\t$fd, ${index}(${base})"), 198 [(set DRC:$fd, (OpNode (add iPTR:$base, iPTR:$index)))], Itin, 199 FrmFI, opstr>, HARDFLOAT { 200 let AddedComplexity = 20; 201 } 202 203 class SWXC1_FT<string opstr, RegisterOperand DRC, 204 InstrItinClass Itin, SDPatternOperator OpNode = null_frag> : 205 InstSE<(outs), (ins DRC:$fs, PtrRC:$base, PtrRC:$index), 206 !strconcat(opstr, "\t$fs, ${index}(${base})"), 207 [(OpNode DRC:$fs, (add iPTR:$base, iPTR:$index))], Itin, 208 FrmFI, opstr>, HARDFLOAT { 209 let AddedComplexity = 20; 210 } 211 212 class BC1F_FT<string opstr, DAGOperand opnd, InstrItinClass Itin, 213 SDPatternOperator Op = null_frag, bit DelaySlot = 1> : 214 InstSE<(outs), (ins FCCRegsOpnd:$fcc, opnd:$offset), 215 !strconcat(opstr, "\t$fcc, $offset"), 216 [(MipsFPBrcond Op, FCCRegsOpnd:$fcc, bb:$offset)], Itin, 217 FrmFI, opstr>, HARDFLOAT { 218 let isBranch = 1; 219 let isTerminator = 1; 220 let hasDelaySlot = DelaySlot; 221 let Defs = [AT]; 222 } 223 224 class CEQS_FT<string typestr, RegisterClass RC, InstrItinClass Itin, 225 SDPatternOperator OpNode = null_frag> : 226 InstSE<(outs), (ins RC:$fs, RC:$ft, condcode:$cond), 227 !strconcat("c.$cond.", typestr, "\t$fs, $ft"), 228 [(OpNode RC:$fs, RC:$ft, imm:$cond)], Itin, FrmFR, 229 !strconcat("c.$cond.", typestr)>, HARDFLOAT { 230 let Defs = [FCC0]; 231 let isCodeGenOnly = 1; 232 } 233 234 class C_COND_FT<string CondStr, string Typestr, RegisterOperand RC, 235 InstrItinClass itin> : 236 InstSE<(outs), (ins RC:$fs, RC:$ft), 237 !strconcat("c.", CondStr, ".", Typestr, "\t$fs, $ft"), [], itin, 238 FrmFR>, HARDFLOAT; 239 240 multiclass C_COND_M<string TypeStr, RegisterOperand RC, bits<5> fmt, 241 InstrItinClass itin> { 242 def C_F_#NAME : C_COND_FT<"f", TypeStr, RC, itin>, C_COND_FM<fmt, 0>; 243 def C_UN_#NAME : C_COND_FT<"un", TypeStr, RC, itin>, C_COND_FM<fmt, 1>; 244 def C_EQ_#NAME : C_COND_FT<"eq", TypeStr, RC, itin>, C_COND_FM<fmt, 2>; 245 def C_UEQ_#NAME : C_COND_FT<"ueq", TypeStr, RC, itin>, C_COND_FM<fmt, 3>; 246 def C_OLT_#NAME : C_COND_FT<"olt", TypeStr, RC, itin>, C_COND_FM<fmt, 4>; 247 def C_ULT_#NAME : C_COND_FT<"ult", TypeStr, RC, itin>, C_COND_FM<fmt, 5>; 248 def C_OLE_#NAME : C_COND_FT<"ole", TypeStr, RC, itin>, C_COND_FM<fmt, 6>; 249 def C_ULE_#NAME : C_COND_FT<"ule", TypeStr, RC, itin>, C_COND_FM<fmt, 7>; 250 def C_SF_#NAME : C_COND_FT<"sf", TypeStr, RC, itin>, C_COND_FM<fmt, 8>; 251 def C_NGLE_#NAME : C_COND_FT<"ngle", TypeStr, RC, itin>, C_COND_FM<fmt, 9>; 252 def C_SEQ_#NAME : C_COND_FT<"seq", TypeStr, RC, itin>, C_COND_FM<fmt, 10>; 253 def C_NGL_#NAME : C_COND_FT<"ngl", TypeStr, RC, itin>, C_COND_FM<fmt, 11>; 254 def C_LT_#NAME : C_COND_FT<"lt", TypeStr, RC, itin>, C_COND_FM<fmt, 12>; 255 def C_NGE_#NAME : C_COND_FT<"nge", TypeStr, RC, itin>, C_COND_FM<fmt, 13>; 256 def C_LE_#NAME : C_COND_FT<"le", TypeStr, RC, itin>, C_COND_FM<fmt, 14>; 257 def C_NGT_#NAME : C_COND_FT<"ngt", TypeStr, RC, itin>, C_COND_FM<fmt, 15>; 258 } 259 260 defm S : C_COND_M<"s", FGR32Opnd, 16, II_C_CC_S>, ISA_MIPS1_NOT_32R6_64R6; 261 defm D32 : C_COND_M<"d", AFGR64Opnd, 17, II_C_CC_D>, ISA_MIPS1_NOT_32R6_64R6, 262 FGR_32; 263 let DecoderNamespace = "Mips64" in 264 defm D64 : C_COND_M<"d", FGR64Opnd, 17, II_C_CC_D>, ISA_MIPS1_NOT_32R6_64R6, 265 FGR_64; 266 267 //===----------------------------------------------------------------------===// 268 // Floating Point Instructions 269 //===----------------------------------------------------------------------===// 270 def ROUND_W_S : MMRel, StdMMR6Rel, ABSS_FT<"round.w.s", FGR32Opnd, FGR32Opnd, II_ROUND>, 271 ABSS_FM<0xc, 16>, ISA_MIPS2; 272 defm ROUND_W : ROUND_M<"round.w.d", II_ROUND>, ABSS_FM<0xc, 17>, ISA_MIPS2; 273 def TRUNC_W_S : MMRel, StdMMR6Rel, ABSS_FT<"trunc.w.s", FGR32Opnd, FGR32Opnd, II_TRUNC>, 274 ABSS_FM<0xd, 16>, ISA_MIPS2; 275 def CEIL_W_S : MMRel, StdMMR6Rel, ABSS_FT<"ceil.w.s", FGR32Opnd, FGR32Opnd, II_CEIL>, 276 ABSS_FM<0xe, 16>, ISA_MIPS2; 277 def FLOOR_W_S : MMRel, StdMMR6Rel, ABSS_FT<"floor.w.s", FGR32Opnd, FGR32Opnd, II_FLOOR>, 278 ABSS_FM<0xf, 16>, ISA_MIPS2; 279 def CVT_W_S : MMRel, ABSS_FT<"cvt.w.s", FGR32Opnd, FGR32Opnd, II_CVT>, 280 ABSS_FM<0x24, 16>; 281 282 defm TRUNC_W : ROUND_M<"trunc.w.d", II_TRUNC>, ABSS_FM<0xd, 17>, ISA_MIPS2; 283 defm CEIL_W : ROUND_M<"ceil.w.d", II_CEIL>, ABSS_FM<0xe, 17>, ISA_MIPS2; 284 defm FLOOR_W : ROUND_M<"floor.w.d", II_FLOOR>, ABSS_FM<0xf, 17>, ISA_MIPS2; 285 defm CVT_W : ROUND_M<"cvt.w.d", II_CVT>, ABSS_FM<0x24, 17>; 286 287 let DecoderNamespace = "Mips64" in { 288 let AdditionalPredicates = [NotInMicroMips] in { 289 def ROUND_L_S : ABSS_FT<"round.l.s", FGR64Opnd, FGR32Opnd, II_ROUND>, 290 ABSS_FM<0x8, 16>, FGR_64; 291 def ROUND_L_D64 : ABSS_FT<"round.l.d", FGR64Opnd, FGR64Opnd, II_ROUND>, 292 ABSS_FM<0x8, 17>, FGR_64; 293 def TRUNC_L_S : ABSS_FT<"trunc.l.s", FGR64Opnd, FGR32Opnd, II_TRUNC>, 294 ABSS_FM<0x9, 16>, FGR_64; 295 def TRUNC_L_D64 : ABSS_FT<"trunc.l.d", FGR64Opnd, FGR64Opnd, II_TRUNC>, 296 ABSS_FM<0x9, 17>, FGR_64; 297 def CEIL_L_S : ABSS_FT<"ceil.l.s", FGR64Opnd, FGR32Opnd, II_CEIL>, 298 ABSS_FM<0xa, 16>, FGR_64; 299 def CEIL_L_D64 : ABSS_FT<"ceil.l.d", FGR64Opnd, FGR64Opnd, II_CEIL>, 300 ABSS_FM<0xa, 17>, FGR_64; 301 def FLOOR_L_S : ABSS_FT<"floor.l.s", FGR64Opnd, FGR32Opnd, II_FLOOR>, 302 ABSS_FM<0xb, 16>, FGR_64; 303 def FLOOR_L_D64 : ABSS_FT<"floor.l.d", FGR64Opnd, FGR64Opnd, II_FLOOR>, 304 ABSS_FM<0xb, 17>, FGR_64; 305 } 306 } 307 308 def CVT_S_W : MMRel, ABSS_FT<"cvt.s.w", FGR32Opnd, FGR32Opnd, II_CVT>, 309 ABSS_FM<0x20, 20>; 310 let AdditionalPredicates = [NotInMicroMips] in{ 311 def CVT_L_S : MMRel, ABSS_FT<"cvt.l.s", FGR64Opnd, FGR32Opnd, II_CVT>, 312 ABSS_FM<0x25, 16>, INSN_MIPS3_32R2; 313 def CVT_L_D64: MMRel, ABSS_FT<"cvt.l.d", FGR64Opnd, FGR64Opnd, II_CVT>, 314 ABSS_FM<0x25, 17>, INSN_MIPS3_32R2; 315 } 316 317 def CVT_S_D32 : MMRel, ABSS_FT<"cvt.s.d", FGR32Opnd, AFGR64Opnd, II_CVT>, 318 ABSS_FM<0x20, 17>, FGR_32; 319 def CVT_D32_W : MMRel, ABSS_FT<"cvt.d.w", AFGR64Opnd, FGR32Opnd, II_CVT>, 320 ABSS_FM<0x21, 20>, FGR_32; 321 def CVT_D32_S : MMRel, ABSS_FT<"cvt.d.s", AFGR64Opnd, FGR32Opnd, II_CVT>, 322 ABSS_FM<0x21, 16>, FGR_32; 323 324 let DecoderNamespace = "Mips64" in { 325 def CVT_S_D64 : ABSS_FT<"cvt.s.d", FGR32Opnd, FGR64Opnd, II_CVT>, 326 ABSS_FM<0x20, 17>, FGR_64; 327 let AdditionalPredicates = [NotInMicroMips] in{ 328 def CVT_S_L : ABSS_FT<"cvt.s.l", FGR32Opnd, FGR64Opnd, II_CVT>, 329 ABSS_FM<0x20, 21>, FGR_64; 330 } 331 def CVT_D64_W : ABSS_FT<"cvt.d.w", FGR64Opnd, FGR32Opnd, II_CVT>, 332 ABSS_FM<0x21, 20>, FGR_64; 333 def CVT_D64_S : ABSS_FT<"cvt.d.s", FGR64Opnd, FGR32Opnd, II_CVT>, 334 ABSS_FM<0x21, 16>, FGR_64; 335 def CVT_D64_L : ABSS_FT<"cvt.d.l", FGR64Opnd, FGR64Opnd, II_CVT>, 336 ABSS_FM<0x21, 21>, FGR_64; 337 } 338 339 let isPseudo = 1, isCodeGenOnly = 1 in { 340 def PseudoCVT_S_W : ABSS_FT<"", FGR32Opnd, GPR32Opnd, II_CVT>; 341 def PseudoCVT_D32_W : ABSS_FT<"", AFGR64Opnd, GPR32Opnd, II_CVT>; 342 def PseudoCVT_S_L : ABSS_FT<"", FGR64Opnd, GPR64Opnd, II_CVT>; 343 def PseudoCVT_D64_W : ABSS_FT<"", FGR64Opnd, GPR32Opnd, II_CVT>; 344 def PseudoCVT_D64_L : ABSS_FT<"", FGR64Opnd, GPR64Opnd, II_CVT>; 345 } 346 347 def FABS_S : MMRel, ABSS_FT<"abs.s", FGR32Opnd, FGR32Opnd, II_ABS, fabs>, 348 ABSS_FM<0x5, 16>; 349 def FNEG_S : MMRel, ABSS_FT<"neg.s", FGR32Opnd, FGR32Opnd, II_NEG, fneg>, 350 ABSS_FM<0x7, 16>; 351 defm FABS : ABSS_M<"abs.d", II_ABS, fabs>, ABSS_FM<0x5, 17>; 352 defm FNEG : ABSS_M<"neg.d", II_NEG, fneg>, ABSS_FM<0x7, 17>; 353 354 def FSQRT_S : MMRel, StdMMR6Rel, ABSS_FT<"sqrt.s", FGR32Opnd, FGR32Opnd, 355 II_SQRT_S, fsqrt>, ABSS_FM<0x4, 16>, ISA_MIPS2; 356 defm FSQRT : ABSS_M<"sqrt.d", II_SQRT_D, fsqrt>, ABSS_FM<0x4, 17>, ISA_MIPS2; 357 358 // The odd-numbered registers are only referenced when doing loads, 359 // stores, and moves between floating-point and integer registers. 360 // When defining instructions, we reference all 32-bit registers, 361 // regardless of register aliasing. 362 363 /// Move Control Registers From/To CPU Registers 364 def CFC1 : MMRel, MFC1_FT<"cfc1", GPR32Opnd, CCROpnd, II_CFC1>, MFC1_FM<2>; 365 def CTC1 : MMRel, MTC1_FT<"ctc1", CCROpnd, GPR32Opnd, II_CTC1>, MFC1_FM<6>; 366 def MFC1 : MMRel, MFC1_FT<"mfc1", GPR32Opnd, FGR32Opnd, II_MFC1, 367 bitconvert>, MFC1_FM<0>; 368 def MTC1 : MMRel, MTC1_FT<"mtc1", FGR32Opnd, GPR32Opnd, II_MTC1, 369 bitconvert>, MFC1_FM<4>; 370 let AdditionalPredicates = [NotInMicroMips] in { 371 def MFHC1_D32 : MMRel, MFC1_FT<"mfhc1", GPR32Opnd, AFGR64Opnd, II_MFHC1>, 372 MFC1_FM<3>, ISA_MIPS32R2, FGR_32; 373 def MFHC1_D64 : MFC1_FT<"mfhc1", GPR32Opnd, FGR64Opnd, II_MFHC1>, 374 MFC1_FM<3>, ISA_MIPS32R2, FGR_64 { 375 let DecoderNamespace = "Mips64"; 376 } 377 } 378 let AdditionalPredicates = [NotInMicroMips] in { 379 def MTHC1_D32 : MMRel, StdMMR6Rel, MTC1_64_FT<"mthc1", AFGR64Opnd, GPR32Opnd, II_MTHC1>, 380 MFC1_FM<7>, ISA_MIPS32R2, FGR_32; 381 def MTHC1_D64 : MTC1_64_FT<"mthc1", FGR64Opnd, GPR32Opnd, II_MTHC1>, 382 MFC1_FM<7>, ISA_MIPS32R2, FGR_64 { 383 let DecoderNamespace = "Mips64"; 384 } 385 } 386 let AdditionalPredicates = [NotInMicroMips] in { 387 def DMTC1 : MTC1_FT<"dmtc1", FGR64Opnd, GPR64Opnd, II_DMTC1, 388 bitconvert>, MFC1_FM<5>, ISA_MIPS3; 389 def DMFC1 : MFC1_FT<"dmfc1", GPR64Opnd, FGR64Opnd, II_DMFC1, 390 bitconvert>, MFC1_FM<1>, ISA_MIPS3; 391 } 392 393 def FMOV_S : MMRel, ABSS_FT<"mov.s", FGR32Opnd, FGR32Opnd, II_MOV_S>, 394 ABSS_FM<0x6, 16>; 395 def FMOV_D32 : MMRel, ABSS_FT<"mov.d", AFGR64Opnd, AFGR64Opnd, II_MOV_D>, 396 ABSS_FM<0x6, 17>, FGR_32; 397 def FMOV_D64 : ABSS_FT<"mov.d", FGR64Opnd, FGR64Opnd, II_MOV_D>, 398 ABSS_FM<0x6, 17>, FGR_64 { 399 let DecoderNamespace = "Mips64"; 400 } 401 402 /// Floating Point Memory Instructions 403 let AdditionalPredicates = [NotInMicroMips] in { 404 def LWC1 : MMRel, LW_FT<"lwc1", FGR32Opnd, mem_simm16, II_LWC1, load>, 405 LW_FM<0x31>; 406 def SWC1 : MMRel, SW_FT<"swc1", FGR32Opnd, mem_simm16, II_SWC1, store>, 407 LW_FM<0x39>; 408 } 409 410 let DecoderNamespace = "Mips64", AdditionalPredicates = [NotInMicroMips] in { 411 def LDC164 : StdMMR6Rel, LW_FT<"ldc1", FGR64Opnd, mem_simm16, II_LDC1, load>, 412 LW_FM<0x35>, ISA_MIPS2, FGR_64 { 413 let BaseOpcode = "LDC164"; 414 } 415 def SDC164 : StdMMR6Rel, SW_FT<"sdc1", FGR64Opnd, mem_simm16, II_SDC1, store>, 416 LW_FM<0x3d>, ISA_MIPS2, FGR_64; 417 } 418 419 let AdditionalPredicates = [NotInMicroMips] in { 420 def LDC1 : MMRel, StdMMR6Rel, LW_FT<"ldc1", AFGR64Opnd, mem_simm16, II_LDC1, 421 load>, LW_FM<0x35>, ISA_MIPS2, FGR_32 { 422 let BaseOpcode = "LDC132"; 423 } 424 def SDC1 : MMRel, SW_FT<"sdc1", AFGR64Opnd, mem_simm16, II_SDC1, store>, 425 LW_FM<0x3d>, ISA_MIPS2, FGR_32; 426 } 427 428 // Indexed loads and stores. 429 // Base register + offset register addressing mode (indicated by "x" in the 430 // instruction mnemonic) is disallowed under NaCl. 431 let AdditionalPredicates = [IsNotNaCl] in { 432 def LWXC1 : MMRel, LWXC1_FT<"lwxc1", FGR32Opnd, II_LWXC1, load>, LWXC1_FM<0>, 433 INSN_MIPS4_32R2_NOT_32R6_64R6; 434 def SWXC1 : MMRel, SWXC1_FT<"swxc1", FGR32Opnd, II_SWXC1, store>, SWXC1_FM<8>, 435 INSN_MIPS4_32R2_NOT_32R6_64R6; 436 } 437 438 let AdditionalPredicates = [NotInMicroMips, IsNotNaCl] in { 439 def LDXC1 : LWXC1_FT<"ldxc1", AFGR64Opnd, II_LDXC1, load>, LWXC1_FM<1>, 440 INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_32; 441 def SDXC1 : SWXC1_FT<"sdxc1", AFGR64Opnd, II_SDXC1, store>, SWXC1_FM<9>, 442 INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_32; 443 } 444 445 let DecoderNamespace="Mips64" in { 446 def LDXC164 : LWXC1_FT<"ldxc1", FGR64Opnd, II_LDXC1, load>, LWXC1_FM<1>, 447 INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_64; 448 def SDXC164 : SWXC1_FT<"sdxc1", FGR64Opnd, II_SDXC1, store>, SWXC1_FM<9>, 449 INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_64; 450 } 451 452 // Load/store doubleword indexed unaligned. 453 let AdditionalPredicates = [IsNotNaCl] in { 454 def LUXC1 : MMRel, LWXC1_FT<"luxc1", AFGR64Opnd, II_LUXC1>, LWXC1_FM<0x5>, 455 INSN_MIPS5_32R2_NOT_32R6_64R6, FGR_32; 456 def SUXC1 : MMRel, SWXC1_FT<"suxc1", AFGR64Opnd, II_SUXC1>, SWXC1_FM<0xd>, 457 INSN_MIPS5_32R2_NOT_32R6_64R6, FGR_32; 458 } 459 460 let DecoderNamespace="Mips64" in { 461 def LUXC164 : LWXC1_FT<"luxc1", FGR64Opnd, II_LUXC1>, LWXC1_FM<0x5>, 462 INSN_MIPS5_32R2_NOT_32R6_64R6, FGR_64; 463 def SUXC164 : SWXC1_FT<"suxc1", FGR64Opnd, II_SUXC1>, SWXC1_FM<0xd>, 464 INSN_MIPS5_32R2_NOT_32R6_64R6, FGR_64; 465 } 466 467 /// Floating-point Aritmetic 468 def FADD_S : MMRel, ADDS_FT<"add.s", FGR32Opnd, II_ADD_S, 1, fadd>, 469 ADDS_FM<0x00, 16>; 470 defm FADD : ADDS_M<"add.d", II_ADD_D, 1, fadd>, ADDS_FM<0x00, 17>; 471 def FDIV_S : MMRel, ADDS_FT<"div.s", FGR32Opnd, II_DIV_S, 0, fdiv>, 472 ADDS_FM<0x03, 16>; 473 defm FDIV : ADDS_M<"div.d", II_DIV_D, 0, fdiv>, ADDS_FM<0x03, 17>; 474 def FMUL_S : MMRel, ADDS_FT<"mul.s", FGR32Opnd, II_MUL_S, 1, fmul>, 475 ADDS_FM<0x02, 16>; 476 defm FMUL : ADDS_M<"mul.d", II_MUL_D, 1, fmul>, ADDS_FM<0x02, 17>; 477 def FSUB_S : MMRel, ADDS_FT<"sub.s", FGR32Opnd, II_SUB_S, 0, fsub>, 478 ADDS_FM<0x01, 16>; 479 defm FSUB : ADDS_M<"sub.d", II_SUB_D, 0, fsub>, ADDS_FM<0x01, 17>; 480 481 def MADD_S : MMRel, MADDS_FT<"madd.s", FGR32Opnd, II_MADD_S, fadd>, 482 MADDS_FM<4, 0>, INSN_MIPS4_32R2_NOT_32R6_64R6; 483 def MSUB_S : MMRel, MADDS_FT<"msub.s", FGR32Opnd, II_MSUB_S, fsub>, 484 MADDS_FM<5, 0>, INSN_MIPS4_32R2_NOT_32R6_64R6; 485 486 let AdditionalPredicates = [NoNaNsFPMath] in { 487 def NMADD_S : MMRel, NMADDS_FT<"nmadd.s", FGR32Opnd, II_NMADD_S, fadd>, 488 MADDS_FM<6, 0>, INSN_MIPS4_32R2_NOT_32R6_64R6; 489 def NMSUB_S : MMRel, NMADDS_FT<"nmsub.s", FGR32Opnd, II_NMSUB_S, fsub>, 490 MADDS_FM<7, 0>, INSN_MIPS4_32R2_NOT_32R6_64R6; 491 } 492 493 def MADD_D32 : MMRel, MADDS_FT<"madd.d", AFGR64Opnd, II_MADD_D, fadd>, 494 MADDS_FM<4, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_32; 495 def MSUB_D32 : MMRel, MADDS_FT<"msub.d", AFGR64Opnd, II_MSUB_D, fsub>, 496 MADDS_FM<5, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_32; 497 498 let AdditionalPredicates = [NoNaNsFPMath] in { 499 def NMADD_D32 : MMRel, NMADDS_FT<"nmadd.d", AFGR64Opnd, II_NMADD_D, fadd>, 500 MADDS_FM<6, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_32; 501 def NMSUB_D32 : MMRel, NMADDS_FT<"nmsub.d", AFGR64Opnd, II_NMSUB_D, fsub>, 502 MADDS_FM<7, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_32; 503 } 504 505 let DecoderNamespace = "Mips64" in { 506 def MADD_D64 : MADDS_FT<"madd.d", FGR64Opnd, II_MADD_D, fadd>, 507 MADDS_FM<4, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_64; 508 def MSUB_D64 : MADDS_FT<"msub.d", FGR64Opnd, II_MSUB_D, fsub>, 509 MADDS_FM<5, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_64; 510 } 511 512 let AdditionalPredicates = [NoNaNsFPMath], 513 DecoderNamespace = "Mips64" in { 514 def NMADD_D64 : NMADDS_FT<"nmadd.d", FGR64Opnd, II_NMADD_D, fadd>, 515 MADDS_FM<6, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_64; 516 def NMSUB_D64 : NMADDS_FT<"nmsub.d", FGR64Opnd, II_NMSUB_D, fsub>, 517 MADDS_FM<7, 1>, INSN_MIPS4_32R2_NOT_32R6_64R6, FGR_64; 518 } 519 520 //===----------------------------------------------------------------------===// 521 // Floating Point Branch Codes 522 //===----------------------------------------------------------------------===// 523 // Mips branch codes. These correspond to condcode in MipsInstrInfo.h. 524 // They must be kept in synch. 525 def MIPS_BRANCH_F : PatLeaf<(i32 0)>; 526 def MIPS_BRANCH_T : PatLeaf<(i32 1)>; 527 528 def BC1F : MMRel, BC1F_FT<"bc1f", brtarget, II_BC1F, MIPS_BRANCH_F>, 529 BC1F_FM<0, 0>, ISA_MIPS1_NOT_32R6_64R6; 530 def BC1FL : MMRel, BC1F_FT<"bc1fl", brtarget, II_BC1FL, MIPS_BRANCH_F, 0>, 531 BC1F_FM<1, 0>, ISA_MIPS2_NOT_32R6_64R6; 532 def BC1T : MMRel, BC1F_FT<"bc1t", brtarget, II_BC1T, MIPS_BRANCH_T>, 533 BC1F_FM<0, 1>, ISA_MIPS1_NOT_32R6_64R6; 534 def BC1TL : MMRel, BC1F_FT<"bc1tl", brtarget, II_BC1TL, MIPS_BRANCH_T, 0>, 535 BC1F_FM<1, 1>, ISA_MIPS2_NOT_32R6_64R6; 536 537 /// Floating Point Compare 538 let AdditionalPredicates = [NotInMicroMips] in { 539 def FCMP_S32 : MMRel, CEQS_FT<"s", FGR32, II_C_CC_S, MipsFPCmp>, CEQS_FM<16>, 540 ISA_MIPS1_NOT_32R6_64R6; 541 def FCMP_D32 : MMRel, CEQS_FT<"d", AFGR64, II_C_CC_D, MipsFPCmp>, CEQS_FM<17>, 542 ISA_MIPS1_NOT_32R6_64R6, FGR_32; 543 } 544 let DecoderNamespace = "Mips64" in 545 def FCMP_D64 : CEQS_FT<"d", FGR64, II_C_CC_D, MipsFPCmp>, CEQS_FM<17>, 546 ISA_MIPS1_NOT_32R6_64R6, FGR_64; 547 548 //===----------------------------------------------------------------------===// 549 // Floating Point Pseudo-Instructions 550 //===----------------------------------------------------------------------===// 551 552 // This pseudo instr gets expanded into 2 mtc1 instrs after register 553 // allocation. 554 class BuildPairF64Base<RegisterOperand RO> : 555 PseudoSE<(outs RO:$dst), (ins GPR32Opnd:$lo, GPR32Opnd:$hi), 556 [(set RO:$dst, (MipsBuildPairF64 GPR32Opnd:$lo, GPR32Opnd:$hi))], 557 II_MTC1>; 558 559 def BuildPairF64 : BuildPairF64Base<AFGR64Opnd>, FGR_32, HARDFLOAT; 560 def BuildPairF64_64 : BuildPairF64Base<FGR64Opnd>, FGR_64, HARDFLOAT; 561 562 // This pseudo instr gets expanded into 2 mfc1 instrs after register 563 // allocation. 564 // if n is 0, lower part of src is extracted. 565 // if n is 1, higher part of src is extracted. 566 // This node has associated scheduling information as the pre RA scheduler 567 // asserts otherwise. 568 class ExtractElementF64Base<RegisterOperand RO> : 569 PseudoSE<(outs GPR32Opnd:$dst), (ins RO:$src, i32imm:$n), 570 [(set GPR32Opnd:$dst, (MipsExtractElementF64 RO:$src, imm:$n))], 571 II_MFC1>; 572 573 def ExtractElementF64 : ExtractElementF64Base<AFGR64Opnd>, FGR_32, HARDFLOAT; 574 def ExtractElementF64_64 : ExtractElementF64Base<FGR64Opnd>, FGR_64, HARDFLOAT; 575 576 def PseudoTRUNC_W_S : MipsAsmPseudoInst<(outs FGR32Opnd:$fd), 577 (ins FGR32Opnd:$fs, GPR32Opnd:$rs), 578 "trunc.w.s\t$fd, $fs, $rs">; 579 580 def PseudoTRUNC_W_D32 : MipsAsmPseudoInst<(outs FGR32Opnd:$fd), 581 (ins AFGR64Opnd:$fs, GPR32Opnd:$rs), 582 "trunc.w.d\t$fd, $fs, $rs">, 583 FGR_32, HARDFLOAT; 584 585 def PseudoTRUNC_W_D : MipsAsmPseudoInst<(outs FGR32Opnd:$fd), 586 (ins FGR64Opnd:$fs, GPR32Opnd:$rs), 587 "trunc.w.d\t$fd, $fs, $rs">, 588 FGR_64, HARDFLOAT; 589 590 //===----------------------------------------------------------------------===// 591 // InstAliases. 592 //===----------------------------------------------------------------------===// 593 def : MipsInstAlias<"bc1t $offset", (BC1T FCC0, brtarget:$offset)>, 594 ISA_MIPS1_NOT_32R6_64R6, HARDFLOAT; 595 def : MipsInstAlias<"bc1tl $offset", (BC1TL FCC0, brtarget:$offset)>, 596 ISA_MIPS2_NOT_32R6_64R6, HARDFLOAT; 597 def : MipsInstAlias<"bc1f $offset", (BC1F FCC0, brtarget:$offset)>, 598 ISA_MIPS1_NOT_32R6_64R6, HARDFLOAT; 599 def : MipsInstAlias<"bc1fl $offset", (BC1FL FCC0, brtarget:$offset)>, 600 ISA_MIPS2_NOT_32R6_64R6, HARDFLOAT; 601 602 //===----------------------------------------------------------------------===// 603 // Floating Point Patterns 604 //===----------------------------------------------------------------------===// 605 def : MipsPat<(f32 fpimm0), (MTC1 ZERO)>; 606 def : MipsPat<(f32 fpimm0neg), (FNEG_S (MTC1 ZERO))>; 607 608 def : MipsPat<(f32 (sint_to_fp GPR32Opnd:$src)), 609 (PseudoCVT_S_W GPR32Opnd:$src)>; 610 def : MipsPat<(MipsTruncIntFP FGR32Opnd:$src), 611 (TRUNC_W_S FGR32Opnd:$src)>; 612 613 def : MipsPat<(f64 (sint_to_fp GPR32Opnd:$src)), 614 (PseudoCVT_D32_W GPR32Opnd:$src)>, FGR_32; 615 def : MipsPat<(MipsTruncIntFP AFGR64Opnd:$src), 616 (TRUNC_W_D32 AFGR64Opnd:$src)>, FGR_32; 617 def : MipsPat<(f32 (fround AFGR64Opnd:$src)), 618 (CVT_S_D32 AFGR64Opnd:$src)>, FGR_32; 619 def : MipsPat<(f64 (fextend FGR32Opnd:$src)), 620 (CVT_D32_S FGR32Opnd:$src)>, FGR_32; 621 622 def : MipsPat<(f64 fpimm0), (DMTC1 ZERO_64)>, FGR_64; 623 def : MipsPat<(f64 fpimm0neg), (FNEG_D64 (DMTC1 ZERO_64))>, FGR_64; 624 625 def : MipsPat<(f64 (sint_to_fp GPR32Opnd:$src)), 626 (PseudoCVT_D64_W GPR32Opnd:$src)>, FGR_64; 627 def : MipsPat<(f32 (sint_to_fp GPR64Opnd:$src)), 628 (EXTRACT_SUBREG (PseudoCVT_S_L GPR64Opnd:$src), sub_lo)>, FGR_64; 629 def : MipsPat<(f64 (sint_to_fp GPR64Opnd:$src)), 630 (PseudoCVT_D64_L GPR64Opnd:$src)>, FGR_64; 631 632 def : MipsPat<(MipsTruncIntFP FGR64Opnd:$src), 633 (TRUNC_W_D64 FGR64Opnd:$src)>, FGR_64; 634 def : MipsPat<(MipsTruncIntFP FGR32Opnd:$src), 635 (TRUNC_L_S FGR32Opnd:$src)>, FGR_64; 636 def : MipsPat<(MipsTruncIntFP FGR64Opnd:$src), 637 (TRUNC_L_D64 FGR64Opnd:$src)>, FGR_64; 638 639 def : MipsPat<(f32 (fround FGR64Opnd:$src)), 640 (CVT_S_D64 FGR64Opnd:$src)>, FGR_64; 641 def : MipsPat<(f64 (fextend FGR32Opnd:$src)), 642 (CVT_D64_S FGR32Opnd:$src)>, FGR_64; 643 644 // Patterns for loads/stores with a reg+imm operand. 645 let AdditionalPredicates = [NotInMicroMips] in { 646 let AddedComplexity = 40 in { 647 def : LoadRegImmPat<LWC1, f32, load>; 648 def : StoreRegImmPat<SWC1, f32>; 649 650 def : LoadRegImmPat<LDC164, f64, load>, FGR_64; 651 def : StoreRegImmPat<SDC164, f64>, FGR_64; 652 653 def : LoadRegImmPat<LDC1, f64, load>, FGR_32; 654 def : StoreRegImmPat<SDC1, f64>, FGR_32; 655 } 656 } 657
