1 //===-- MipsCondMov.td - Describe Mips Conditional Moves --*- 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 is the Conditional Moves implementation. 11 // 12 //===----------------------------------------------------------------------===// 13 14 // Conditional moves: 15 // These instructions are expanded in 16 // MipsISelLowering::EmitInstrWithCustomInserter if target does not have 17 // conditional move instructions. 18 // cond:int, data:int 19 class CMov_I_I_FT<string opstr, RegisterOperand CRC, RegisterOperand DRC, 20 InstrItinClass Itin> : 21 InstSE<(outs DRC:$rd), (ins DRC:$rs, CRC:$rt, DRC:$F), 22 !strconcat(opstr, "\t$rd, $rs, $rt"), [], Itin, FrmFR, opstr> { 23 let Constraints = "$F = $rd"; 24 } 25 26 // cond:int, data:float 27 class CMov_I_F_FT<string opstr, RegisterOperand CRC, RegisterOperand DRC, 28 InstrItinClass Itin> : 29 InstSE<(outs DRC:$fd), (ins DRC:$fs, CRC:$rt, DRC:$F), 30 !strconcat(opstr, "\t$fd, $fs, $rt"), [], Itin, FrmFR, opstr>, 31 HARDFLOAT { 32 let Constraints = "$F = $fd"; 33 } 34 35 // cond:float, data:int 36 class CMov_F_I_FT<string opstr, RegisterOperand RC, InstrItinClass Itin, 37 SDPatternOperator OpNode = null_frag> : 38 InstSE<(outs RC:$rd), (ins RC:$rs, FCCRegsOpnd:$fcc, RC:$F), 39 !strconcat(opstr, "\t$rd, $rs, $fcc"), 40 [(set RC:$rd, (OpNode RC:$rs, FCCRegsOpnd:$fcc, RC:$F))], 41 Itin, FrmFR, opstr>, HARDFLOAT { 42 let Constraints = "$F = $rd"; 43 } 44 45 // cond:float, data:float 46 class CMov_F_F_FT<string opstr, RegisterOperand RC, InstrItinClass Itin, 47 SDPatternOperator OpNode = null_frag> : 48 InstSE<(outs RC:$fd), (ins RC:$fs, FCCRegsOpnd:$fcc, RC:$F), 49 !strconcat(opstr, "\t$fd, $fs, $fcc"), 50 [(set RC:$fd, (OpNode RC:$fs, FCCRegsOpnd:$fcc, RC:$F))], 51 Itin, FrmFR, opstr>, HARDFLOAT { 52 let Constraints = "$F = $fd"; 53 } 54 55 // select patterns 56 multiclass MovzPats0<RegisterClass CRC, RegisterClass DRC, 57 Instruction MOVZInst, Instruction SLTOp, 58 Instruction SLTuOp, Instruction SLTiOp, 59 Instruction SLTiuOp> { 60 def : MipsPat<(select (i32 (setge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), 61 (MOVZInst DRC:$T, (SLTOp CRC:$lhs, CRC:$rhs), DRC:$F)>; 62 def : MipsPat<(select (i32 (setuge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), 63 (MOVZInst DRC:$T, (SLTuOp CRC:$lhs, CRC:$rhs), DRC:$F)>; 64 def : MipsPat<(select (i32 (setge CRC:$lhs, immSExt16:$rhs)), DRC:$T, DRC:$F), 65 (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, immSExt16:$rhs), DRC:$F)>; 66 def : MipsPat<(select (i32 (setuge CRC:$lh, immSExt16:$rh)), DRC:$T, DRC:$F), 67 (MOVZInst DRC:$T, (SLTiuOp CRC:$lh, immSExt16:$rh), DRC:$F)>; 68 def : MipsPat<(select (i32 (setle CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), 69 (MOVZInst DRC:$T, (SLTOp CRC:$rhs, CRC:$lhs), DRC:$F)>; 70 def : MipsPat<(select (i32 (setule CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), 71 (MOVZInst DRC:$T, (SLTuOp CRC:$rhs, CRC:$lhs), DRC:$F)>; 72 def : MipsPat<(select (i32 (setgt CRC:$lhs, immSExt16Plus1:$rhs)), 73 DRC:$T, DRC:$F), 74 (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, (Plus1 imm:$rhs)), DRC:$F)>; 75 def : MipsPat<(select (i32 (setugt CRC:$lhs, immSExt16Plus1:$rhs)), 76 DRC:$T, DRC:$F), 77 (MOVZInst DRC:$T, (SLTiuOp CRC:$lhs, (Plus1 imm:$rhs)), 78 DRC:$F)>; 79 } 80 81 multiclass MovzPats1<RegisterClass CRC, RegisterClass DRC, 82 Instruction MOVZInst, Instruction XOROp> { 83 def : MipsPat<(select (i32 (seteq CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), 84 (MOVZInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>; 85 def : MipsPat<(select (i32 (seteq CRC:$lhs, 0)), DRC:$T, DRC:$F), 86 (MOVZInst DRC:$T, CRC:$lhs, DRC:$F)>; 87 } 88 89 multiclass MovzPats2<RegisterClass CRC, RegisterClass DRC, 90 Instruction MOVZInst, Instruction XORiOp> { 91 def : MipsPat< 92 (select (i32 (seteq CRC:$lhs, immZExt16:$uimm16)), DRC:$T, DRC:$F), 93 (MOVZInst DRC:$T, (XORiOp CRC:$lhs, immZExt16:$uimm16), DRC:$F)>; 94 } 95 96 multiclass MovnPats<RegisterClass CRC, RegisterClass DRC, Instruction MOVNInst, 97 Instruction XOROp> { 98 def : MipsPat<(select (i32 (setne CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), 99 (MOVNInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>; 100 def : MipsPat<(select CRC:$cond, DRC:$T, DRC:$F), 101 (MOVNInst DRC:$T, CRC:$cond, DRC:$F)>; 102 def : MipsPat<(select (i32 (setne CRC:$lhs, 0)),DRC:$T, DRC:$F), 103 (MOVNInst DRC:$T, CRC:$lhs, DRC:$F)>; 104 } 105 106 // Instantiation of instructions. 107 let AdditionalPredicates = [NotInMicroMips] in { 108 def MOVZ_I_I : MMRel, CMov_I_I_FT<"movz", GPR32Opnd, GPR32Opnd, II_MOVZ>, 109 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; 110 111 let isCodeGenOnly = 1 in { 112 def MOVZ_I_I64 : CMov_I_I_FT<"movz", GPR32Opnd, GPR64Opnd, II_MOVZ>, 113 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; 114 def MOVZ_I64_I : CMov_I_I_FT<"movz", GPR64Opnd, GPR32Opnd, II_MOVZ>, 115 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; 116 def MOVZ_I64_I64 : CMov_I_I_FT<"movz", GPR64Opnd, GPR64Opnd, II_MOVZ>, 117 ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; 118 } 119 120 def MOVN_I_I : MMRel, CMov_I_I_FT<"movn", GPR32Opnd, GPR32Opnd, II_MOVN>, 121 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; 122 123 let isCodeGenOnly = 1 in { 124 def MOVN_I_I64 : CMov_I_I_FT<"movn", GPR32Opnd, GPR64Opnd, II_MOVN>, 125 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; 126 def MOVN_I64_I : CMov_I_I_FT<"movn", GPR64Opnd, GPR32Opnd, II_MOVN>, 127 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; 128 def MOVN_I64_I64 : CMov_I_I_FT<"movn", GPR64Opnd, GPR64Opnd, II_MOVN>, 129 ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; 130 } 131 def MOVZ_I_S : MMRel, CMov_I_F_FT<"movz.s", GPR32Opnd, FGR32Opnd, II_MOVZ_S>, 132 CMov_I_F_FM<18, 16>, INSN_MIPS4_32_NOT_32R6_64R6; 133 134 let isCodeGenOnly = 1 in 135 def MOVZ_I64_S : CMov_I_F_FT<"movz.s", GPR64Opnd, FGR32Opnd, II_MOVZ_S>, 136 CMov_I_F_FM<18, 16>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 137 138 def MOVN_I_S : MMRel, CMov_I_F_FT<"movn.s", GPR32Opnd, FGR32Opnd, II_MOVN_S>, 139 CMov_I_F_FM<19, 16>, INSN_MIPS4_32_NOT_32R6_64R6; 140 141 let isCodeGenOnly = 1 in 142 def MOVN_I64_S : CMov_I_F_FT<"movn.s", GPR64Opnd, FGR32Opnd, II_MOVN_S>, 143 CMov_I_F_FM<19, 16>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 144 145 def MOVZ_I_D32 : MMRel, CMov_I_F_FT<"movz.d", GPR32Opnd, AFGR64Opnd, 146 II_MOVZ_D>, CMov_I_F_FM<18, 17>, 147 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; 148 def MOVN_I_D32 : MMRel, CMov_I_F_FT<"movn.d", GPR32Opnd, AFGR64Opnd, 149 II_MOVN_D>, CMov_I_F_FM<19, 17>, 150 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; 151 152 let DecoderNamespace = "MipsFP64" in { 153 def MOVZ_I_D64 : CMov_I_F_FT<"movz.d", GPR32Opnd, FGR64Opnd, II_MOVZ_D>, 154 CMov_I_F_FM<18, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 155 def MOVN_I_D64 : CMov_I_F_FT<"movn.d", GPR32Opnd, FGR64Opnd, II_MOVN_D>, 156 CMov_I_F_FM<19, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 157 let isCodeGenOnly = 1 in { 158 def MOVZ_I64_D64 : CMov_I_F_FT<"movz.d", GPR64Opnd, FGR64Opnd, II_MOVZ_D>, 159 CMov_I_F_FM<18, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 160 def MOVN_I64_D64 : CMov_I_F_FT<"movn.d", GPR64Opnd, FGR64Opnd, II_MOVN_D>, 161 CMov_I_F_FM<19, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 162 } 163 } 164 165 def MOVT_I : MMRel, CMov_F_I_FT<"movt", GPR32Opnd, II_MOVT, MipsCMovFP_T>, 166 CMov_F_I_FM<1>, INSN_MIPS4_32_NOT_32R6_64R6; 167 168 let isCodeGenOnly = 1 in 169 def MOVT_I64 : CMov_F_I_FT<"movt", GPR64Opnd, II_MOVT, MipsCMovFP_T>, 170 CMov_F_I_FM<1>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 171 172 def MOVF_I : MMRel, CMov_F_I_FT<"movf", GPR32Opnd, II_MOVF, MipsCMovFP_F>, 173 CMov_F_I_FM<0>, INSN_MIPS4_32_NOT_32R6_64R6; 174 175 let isCodeGenOnly = 1 in 176 def MOVF_I64 : CMov_F_I_FT<"movf", GPR64Opnd, II_MOVF, MipsCMovFP_F>, 177 CMov_F_I_FM<0>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 178 def MOVT_S : MMRel, CMov_F_F_FT<"movt.s", FGR32Opnd, II_MOVT_S, MipsCMovFP_T>, 179 CMov_F_F_FM<16, 1>, INSN_MIPS4_32_NOT_32R6_64R6; 180 def MOVF_S : MMRel, CMov_F_F_FT<"movf.s", FGR32Opnd, II_MOVF_S, MipsCMovFP_F>, 181 CMov_F_F_FM<16, 0>, INSN_MIPS4_32_NOT_32R6_64R6; 182 183 def MOVT_D32 : MMRel, CMov_F_F_FT<"movt.d", AFGR64Opnd, II_MOVT_D, 184 MipsCMovFP_T>, CMov_F_F_FM<17, 1>, 185 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; 186 def MOVF_D32 : MMRel, CMov_F_F_FT<"movf.d", AFGR64Opnd, II_MOVF_D, 187 MipsCMovFP_F>, CMov_F_F_FM<17, 0>, 188 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; 189 190 let DecoderNamespace = "MipsFP64" in { 191 def MOVT_D64 : CMov_F_F_FT<"movt.d", FGR64Opnd, II_MOVT_D, MipsCMovFP_T>, 192 CMov_F_F_FM<17, 1>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 193 def MOVF_D64 : CMov_F_F_FT<"movf.d", FGR64Opnd, II_MOVF_D, MipsCMovFP_F>, 194 CMov_F_F_FM<17, 0>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 195 } 196 197 // Instantiation of conditional move patterns. 198 defm : MovzPats0<GPR32, GPR32, MOVZ_I_I, SLT, SLTu, SLTi, SLTiu>, 199 INSN_MIPS4_32_NOT_32R6_64R6; 200 defm : MovzPats1<GPR32, GPR32, MOVZ_I_I, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; 201 defm : MovzPats2<GPR32, GPR32, MOVZ_I_I, XORi>, INSN_MIPS4_32_NOT_32R6_64R6; 202 203 defm : MovzPats0<GPR32, GPR64, MOVZ_I_I64, SLT, SLTu, SLTi, SLTiu>, 204 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 205 defm : MovzPats0<GPR64, GPR32, MOVZ_I_I, SLT64, SLTu64, SLTi64, SLTiu64>, 206 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 207 defm : MovzPats0<GPR64, GPR64, MOVZ_I_I64, SLT64, SLTu64, SLTi64, SLTiu64>, 208 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 209 defm : MovzPats1<GPR32, GPR64, MOVZ_I_I64, XOR>, 210 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 211 defm : MovzPats1<GPR64, GPR32, MOVZ_I64_I, XOR64>, 212 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 213 defm : MovzPats1<GPR64, GPR64, MOVZ_I64_I64, XOR64>, 214 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 215 defm : MovzPats2<GPR32, GPR64, MOVZ_I_I64, XORi>, 216 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 217 defm : MovzPats2<GPR64, GPR32, MOVZ_I64_I, XORi64>, 218 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 219 defm : MovzPats2<GPR64, GPR64, MOVZ_I64_I64, XORi64>, 220 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 221 222 defm : MovnPats<GPR32, GPR32, MOVN_I_I, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; 223 224 defm : MovnPats<GPR32, GPR64, MOVN_I_I64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, 225 GPR_64; 226 defm : MovnPats<GPR64, GPR32, MOVN_I64_I, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, 227 GPR_64; 228 defm : MovnPats<GPR64, GPR64, MOVN_I64_I64, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, 229 GPR_64; 230 231 defm : MovzPats0<GPR32, FGR32, MOVZ_I_S, SLT, SLTu, SLTi, SLTiu>, 232 INSN_MIPS4_32_NOT_32R6_64R6; 233 defm : MovzPats1<GPR32, FGR32, MOVZ_I_S, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; 234 defm : MovnPats<GPR32, FGR32, MOVN_I_S, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; 235 236 defm : MovzPats0<GPR64, FGR32, MOVZ_I_S, SLT64, SLTu64, SLTi64, SLTiu64>, 237 INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; 238 defm : MovzPats1<GPR64, FGR32, MOVZ_I64_S, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, 239 GPR_64; 240 defm : MovnPats<GPR64, FGR32, MOVN_I64_S, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, 241 GPR_64; 242 243 defm : MovzPats0<GPR32, AFGR64, MOVZ_I_D32, SLT, SLTu, SLTi, SLTiu>, 244 INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; 245 defm : MovzPats1<GPR32, AFGR64, MOVZ_I_D32, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, 246 FGR_32; 247 defm : MovnPats<GPR32, AFGR64, MOVN_I_D32, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, 248 FGR_32; 249 250 defm : MovzPats0<GPR32, FGR64, MOVZ_I_D64, SLT, SLTu, SLTi, SLTiu>, 251 INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 252 defm : MovzPats0<GPR64, FGR64, MOVZ_I_D64, SLT64, SLTu64, SLTi64, SLTiu64>, 253 INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 254 defm : MovzPats1<GPR32, FGR64, MOVZ_I_D64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, 255 FGR_64; 256 defm : MovzPats1<GPR64, FGR64, MOVZ_I64_D64, XOR64>, 257 INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; 258 defm : MovnPats<GPR32, FGR64, MOVN_I_D64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, 259 FGR_64; 260 defm : MovnPats<GPR64, FGR64, MOVN_I64_D64, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, 261 FGR_64; 262 } 263 // For targets that don't have conditional-move instructions 264 // we have to match SELECT nodes with pseudo instructions. 265 let usesCustomInserter = 1 in { 266 class Select_Pseudo<RegisterOperand RC> : 267 PseudoSE<(outs RC:$dst), (ins GPR32Opnd:$cond, RC:$T, RC:$F), 268 [(set RC:$dst, (select GPR32Opnd:$cond, RC:$T, RC:$F))]>, 269 ISA_MIPS1_NOT_4_32; 270 271 class SelectFP_Pseudo_T<RegisterOperand RC> : 272 PseudoSE<(outs RC:$dst), (ins FCCRegsOpnd:$cond, RC:$T, RC:$F), 273 [(set RC:$dst, (MipsCMovFP_T RC:$T, FCCRegsOpnd:$cond, RC:$F))]>, 274 ISA_MIPS1_NOT_4_32; 275 276 class SelectFP_Pseudo_F<RegisterOperand RC> : 277 PseudoSE<(outs RC:$dst), (ins FCCRegsOpnd:$cond, RC:$T, RC:$F), 278 [(set RC:$dst, (MipsCMovFP_F RC:$T, FCCRegsOpnd:$cond, RC:$F))]>, 279 ISA_MIPS1_NOT_4_32; 280 } 281 282 def PseudoSELECT_I : Select_Pseudo<GPR32Opnd>; 283 def PseudoSELECT_I64 : Select_Pseudo<GPR64Opnd>; 284 def PseudoSELECT_S : Select_Pseudo<FGR32Opnd>; 285 def PseudoSELECT_D32 : Select_Pseudo<AFGR64Opnd>, FGR_32; 286 def PseudoSELECT_D64 : Select_Pseudo<FGR64Opnd>, FGR_64; 287 288 def PseudoSELECTFP_T_I : SelectFP_Pseudo_T<GPR32Opnd>; 289 def PseudoSELECTFP_T_I64 : SelectFP_Pseudo_T<GPR64Opnd>; 290 def PseudoSELECTFP_T_S : SelectFP_Pseudo_T<FGR32Opnd>; 291 def PseudoSELECTFP_T_D32 : SelectFP_Pseudo_T<AFGR64Opnd>, FGR_32; 292 def PseudoSELECTFP_T_D64 : SelectFP_Pseudo_T<FGR64Opnd>, FGR_64; 293 294 def PseudoSELECTFP_F_I : SelectFP_Pseudo_F<GPR32Opnd>; 295 def PseudoSELECTFP_F_I64 : SelectFP_Pseudo_F<GPR64Opnd>; 296 def PseudoSELECTFP_F_S : SelectFP_Pseudo_F<FGR32Opnd>; 297 def PseudoSELECTFP_F_D32 : SelectFP_Pseudo_F<AFGR64Opnd>, FGR_32; 298 def PseudoSELECTFP_F_D64 : SelectFP_Pseudo_F<FGR64Opnd>, FGR_64; 299
