| //===-- MipsCondMov.td - Describe Mips Conditional Moves --*- tablegen -*--===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This is the Conditional Moves implementation. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Conditional moves: |
| // These instructions are expanded in |
| // MipsISelLowering::EmitInstrWithCustomInserter if target does not have |
| // conditional move instructions. |
| // cond:int, data:int |
| class CMov_I_I_FT<string opstr, RegisterOperand CRC, RegisterOperand DRC, |
| InstrItinClass Itin> : |
| InstSE<(outs DRC:$rd), (ins DRC:$rs, CRC:$rt, DRC:$F), |
| !strconcat(opstr, "\t$rd, $rs, $rt"), [], Itin, FrmFR, opstr> { |
| let Constraints = "$F = $rd"; |
| } |
| |
| // cond:int, data:float |
| class CMov_I_F_FT<string opstr, RegisterOperand CRC, RegisterOperand DRC, |
| InstrItinClass Itin> : |
| InstSE<(outs DRC:$fd), (ins DRC:$fs, CRC:$rt, DRC:$F), |
| !strconcat(opstr, "\t$fd, $fs, $rt"), [], Itin, FrmFR, opstr>, |
| HARDFLOAT { |
| let Constraints = "$F = $fd"; |
| } |
| |
| // cond:float, data:int |
| class CMov_F_I_FT<string opstr, RegisterOperand RC, InstrItinClass Itin, |
| SDPatternOperator OpNode = null_frag> : |
| InstSE<(outs RC:$rd), (ins RC:$rs, FCCRegsOpnd:$fcc, RC:$F), |
| !strconcat(opstr, "\t$rd, $rs, $fcc"), |
| [(set RC:$rd, (OpNode RC:$rs, FCCRegsOpnd:$fcc, RC:$F))], |
| Itin, FrmFR, opstr>, HARDFLOAT { |
| let Constraints = "$F = $rd"; |
| } |
| |
| // cond:float, data:float |
| class CMov_F_F_FT<string opstr, RegisterOperand RC, InstrItinClass Itin, |
| SDPatternOperator OpNode = null_frag> : |
| InstSE<(outs RC:$fd), (ins RC:$fs, FCCRegsOpnd:$fcc, RC:$F), |
| !strconcat(opstr, "\t$fd, $fs, $fcc"), |
| [(set RC:$fd, (OpNode RC:$fs, FCCRegsOpnd:$fcc, RC:$F))], |
| Itin, FrmFR, opstr>, HARDFLOAT { |
| let Constraints = "$F = $fd"; |
| } |
| |
| // select patterns |
| multiclass MovzPats0<RegisterClass CRC, RegisterClass DRC, |
| Instruction MOVZInst, Instruction SLTOp, |
| Instruction SLTuOp, Instruction SLTiOp, |
| Instruction SLTiuOp> { |
| def : MipsPat<(select (i32 (setge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTOp CRC:$lhs, CRC:$rhs), DRC:$F)>; |
| def : MipsPat<(select (i32 (setuge CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTuOp CRC:$lhs, CRC:$rhs), DRC:$F)>; |
| def : MipsPat<(select (i32 (setge CRC:$lhs, immSExt16:$rhs)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, immSExt16:$rhs), DRC:$F)>; |
| def : MipsPat<(select (i32 (setuge CRC:$lh, immSExt16:$rh)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTiuOp CRC:$lh, immSExt16:$rh), DRC:$F)>; |
| def : MipsPat<(select (i32 (setle CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTOp CRC:$rhs, CRC:$lhs), DRC:$F)>; |
| def : MipsPat<(select (i32 (setule CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTuOp CRC:$rhs, CRC:$lhs), DRC:$F)>; |
| def : MipsPat<(select (i32 (setgt CRC:$lhs, immSExt16Plus1:$rhs)), |
| DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTiOp CRC:$lhs, (Plus1 imm:$rhs)), DRC:$F)>; |
| def : MipsPat<(select (i32 (setugt CRC:$lhs, immSExt16Plus1:$rhs)), |
| DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (SLTiuOp CRC:$lhs, (Plus1 imm:$rhs)), |
| DRC:$F)>; |
| } |
| |
| multiclass MovzPats1<RegisterClass CRC, RegisterClass DRC, |
| Instruction MOVZInst, Instruction XOROp> { |
| def : MipsPat<(select (i32 (seteq CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>; |
| def : MipsPat<(select (i32 (seteq CRC:$lhs, 0)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, CRC:$lhs, DRC:$F)>; |
| } |
| |
| multiclass MovzPats2<RegisterClass CRC, RegisterClass DRC, |
| Instruction MOVZInst, Instruction XORiOp> { |
| def : MipsPat< |
| (select (i32 (seteq CRC:$lhs, immZExt16:$uimm16)), DRC:$T, DRC:$F), |
| (MOVZInst DRC:$T, (XORiOp CRC:$lhs, immZExt16:$uimm16), DRC:$F)>; |
| } |
| |
| multiclass MovnPats<RegisterClass CRC, RegisterClass DRC, Instruction MOVNInst, |
| Instruction XOROp> { |
| def : MipsPat<(select (i32 (setne CRC:$lhs, CRC:$rhs)), DRC:$T, DRC:$F), |
| (MOVNInst DRC:$T, (XOROp CRC:$lhs, CRC:$rhs), DRC:$F)>; |
| def : MipsPat<(select CRC:$cond, DRC:$T, DRC:$F), |
| (MOVNInst DRC:$T, CRC:$cond, DRC:$F)>; |
| def : MipsPat<(select (i32 (setne CRC:$lhs, 0)),DRC:$T, DRC:$F), |
| (MOVNInst DRC:$T, CRC:$lhs, DRC:$F)>; |
| } |
| |
| // Instantiation of instructions. |
| let AdditionalPredicates = [NotInMicroMips] in { |
| def MOVZ_I_I : MMRel, CMov_I_I_FT<"movz", GPR32Opnd, GPR32Opnd, II_MOVZ>, |
| ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| let isCodeGenOnly = 1 in { |
| def MOVZ_I_I64 : CMov_I_I_FT<"movz", GPR32Opnd, GPR64Opnd, II_MOVZ>, |
| ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; |
| def MOVZ_I64_I : CMov_I_I_FT<"movz", GPR64Opnd, GPR32Opnd, II_MOVZ>, |
| ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; |
| def MOVZ_I64_I64 : CMov_I_I_FT<"movz", GPR64Opnd, GPR64Opnd, II_MOVZ>, |
| ADD_FM<0, 0xa>, INSN_MIPS4_32_NOT_32R6_64R6; |
| } |
| |
| def MOVN_I_I : MMRel, CMov_I_I_FT<"movn", GPR32Opnd, GPR32Opnd, II_MOVN>, |
| ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| let isCodeGenOnly = 1 in { |
| def MOVN_I_I64 : CMov_I_I_FT<"movn", GPR32Opnd, GPR64Opnd, II_MOVN>, |
| ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; |
| def MOVN_I64_I : CMov_I_I_FT<"movn", GPR64Opnd, GPR32Opnd, II_MOVN>, |
| ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; |
| def MOVN_I64_I64 : CMov_I_I_FT<"movn", GPR64Opnd, GPR64Opnd, II_MOVN>, |
| ADD_FM<0, 0xb>, INSN_MIPS4_32_NOT_32R6_64R6; |
| } |
| def MOVZ_I_S : MMRel, CMov_I_F_FT<"movz.s", GPR32Opnd, FGR32Opnd, II_MOVZ_S>, |
| CMov_I_F_FM<18, 16>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| let isCodeGenOnly = 1 in |
| def MOVZ_I64_S : CMov_I_F_FT<"movz.s", GPR64Opnd, FGR32Opnd, II_MOVZ_S>, |
| CMov_I_F_FM<18, 16>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| |
| def MOVN_I_S : MMRel, CMov_I_F_FT<"movn.s", GPR32Opnd, FGR32Opnd, II_MOVN_S>, |
| CMov_I_F_FM<19, 16>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| let isCodeGenOnly = 1 in |
| def MOVN_I64_S : CMov_I_F_FT<"movn.s", GPR64Opnd, FGR32Opnd, II_MOVN_S>, |
| CMov_I_F_FM<19, 16>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| |
| def MOVZ_I_D32 : MMRel, CMov_I_F_FT<"movz.d", GPR32Opnd, AFGR64Opnd, |
| II_MOVZ_D>, CMov_I_F_FM<18, 17>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; |
| def MOVN_I_D32 : MMRel, CMov_I_F_FT<"movn.d", GPR32Opnd, AFGR64Opnd, |
| II_MOVN_D>, CMov_I_F_FM<19, 17>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; |
| |
| let DecoderNamespace = "MipsFP64" in { |
| def MOVZ_I_D64 : CMov_I_F_FT<"movz.d", GPR32Opnd, FGR64Opnd, II_MOVZ_D>, |
| CMov_I_F_FM<18, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| def MOVN_I_D64 : CMov_I_F_FT<"movn.d", GPR32Opnd, FGR64Opnd, II_MOVN_D>, |
| CMov_I_F_FM<19, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| let isCodeGenOnly = 1 in { |
| def MOVZ_I64_D64 : CMov_I_F_FT<"movz.d", GPR64Opnd, FGR64Opnd, II_MOVZ_D>, |
| CMov_I_F_FM<18, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| def MOVN_I64_D64 : CMov_I_F_FT<"movn.d", GPR64Opnd, FGR64Opnd, II_MOVN_D>, |
| CMov_I_F_FM<19, 17>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| } |
| } |
| |
| def MOVT_I : MMRel, CMov_F_I_FT<"movt", GPR32Opnd, II_MOVT, MipsCMovFP_T>, |
| CMov_F_I_FM<1>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| let isCodeGenOnly = 1 in |
| def MOVT_I64 : CMov_F_I_FT<"movt", GPR64Opnd, II_MOVT, MipsCMovFP_T>, |
| CMov_F_I_FM<1>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| |
| def MOVF_I : MMRel, CMov_F_I_FT<"movf", GPR32Opnd, II_MOVF, MipsCMovFP_F>, |
| CMov_F_I_FM<0>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| let isCodeGenOnly = 1 in |
| def MOVF_I64 : CMov_F_I_FT<"movf", GPR64Opnd, II_MOVF, MipsCMovFP_F>, |
| CMov_F_I_FM<0>, INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| def MOVT_S : MMRel, CMov_F_F_FT<"movt.s", FGR32Opnd, II_MOVT_S, MipsCMovFP_T>, |
| CMov_F_F_FM<16, 1>, INSN_MIPS4_32_NOT_32R6_64R6; |
| def MOVF_S : MMRel, CMov_F_F_FT<"movf.s", FGR32Opnd, II_MOVF_S, MipsCMovFP_F>, |
| CMov_F_F_FM<16, 0>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| def MOVT_D32 : MMRel, CMov_F_F_FT<"movt.d", AFGR64Opnd, II_MOVT_D, |
| MipsCMovFP_T>, CMov_F_F_FM<17, 1>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; |
| def MOVF_D32 : MMRel, CMov_F_F_FT<"movf.d", AFGR64Opnd, II_MOVF_D, |
| MipsCMovFP_F>, CMov_F_F_FM<17, 0>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; |
| |
| let DecoderNamespace = "MipsFP64" in { |
| def MOVT_D64 : CMov_F_F_FT<"movt.d", FGR64Opnd, II_MOVT_D, MipsCMovFP_T>, |
| CMov_F_F_FM<17, 1>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| def MOVF_D64 : CMov_F_F_FT<"movf.d", FGR64Opnd, II_MOVF_D, MipsCMovFP_F>, |
| CMov_F_F_FM<17, 0>, INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| } |
| |
| // Instantiation of conditional move patterns. |
| defm : MovzPats0<GPR32, GPR32, MOVZ_I_I, SLT, SLTu, SLTi, SLTiu>, |
| INSN_MIPS4_32_NOT_32R6_64R6; |
| defm : MovzPats1<GPR32, GPR32, MOVZ_I_I, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; |
| defm : MovzPats2<GPR32, GPR32, MOVZ_I_I, XORi>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| defm : MovzPats0<GPR32, GPR64, MOVZ_I_I64, SLT, SLTu, SLTi, SLTiu>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats0<GPR64, GPR32, MOVZ_I_I, SLT64, SLTu64, SLTi64, SLTiu64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats0<GPR64, GPR64, MOVZ_I_I64, SLT64, SLTu64, SLTi64, SLTiu64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats1<GPR32, GPR64, MOVZ_I_I64, XOR>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats1<GPR64, GPR32, MOVZ_I64_I, XOR64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats1<GPR64, GPR64, MOVZ_I64_I64, XOR64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats2<GPR32, GPR64, MOVZ_I_I64, XORi>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats2<GPR64, GPR32, MOVZ_I64_I, XORi64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats2<GPR64, GPR64, MOVZ_I64_I64, XORi64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| |
| defm : MovnPats<GPR32, GPR32, MOVN_I_I, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| defm : MovnPats<GPR32, GPR64, MOVN_I_I64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, |
| GPR_64; |
| defm : MovnPats<GPR64, GPR32, MOVN_I64_I, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, |
| GPR_64; |
| defm : MovnPats<GPR64, GPR64, MOVN_I64_I64, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, |
| GPR_64; |
| |
| defm : MovzPats0<GPR32, FGR32, MOVZ_I_S, SLT, SLTu, SLTi, SLTiu>, |
| INSN_MIPS4_32_NOT_32R6_64R6; |
| defm : MovzPats1<GPR32, FGR32, MOVZ_I_S, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; |
| defm : MovnPats<GPR32, FGR32, MOVN_I_S, XOR>, INSN_MIPS4_32_NOT_32R6_64R6; |
| |
| defm : MovzPats0<GPR64, FGR32, MOVZ_I_S, SLT64, SLTu64, SLTi64, SLTiu64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, GPR_64; |
| defm : MovzPats1<GPR64, FGR32, MOVZ_I64_S, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, |
| GPR_64; |
| defm : MovnPats<GPR64, FGR32, MOVN_I64_S, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, |
| GPR_64; |
| |
| defm : MovzPats0<GPR32, AFGR64, MOVZ_I_D32, SLT, SLTu, SLTi, SLTiu>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_32; |
| defm : MovzPats1<GPR32, AFGR64, MOVZ_I_D32, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, |
| FGR_32; |
| defm : MovnPats<GPR32, AFGR64, MOVN_I_D32, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, |
| FGR_32; |
| |
| defm : MovzPats0<GPR32, FGR64, MOVZ_I_D64, SLT, SLTu, SLTi, SLTiu>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| defm : MovzPats0<GPR64, FGR64, MOVZ_I_D64, SLT64, SLTu64, SLTi64, SLTiu64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| defm : MovzPats1<GPR32, FGR64, MOVZ_I_D64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, |
| FGR_64; |
| defm : MovzPats1<GPR64, FGR64, MOVZ_I64_D64, XOR64>, |
| INSN_MIPS4_32_NOT_32R6_64R6, FGR_64; |
| defm : MovnPats<GPR32, FGR64, MOVN_I_D64, XOR>, INSN_MIPS4_32_NOT_32R6_64R6, |
| FGR_64; |
| defm : MovnPats<GPR64, FGR64, MOVN_I64_D64, XOR64>, INSN_MIPS4_32_NOT_32R6_64R6, |
| FGR_64; |
| } |
| // For targets that don't have conditional-move instructions |
| // we have to match SELECT nodes with pseudo instructions. |
| let usesCustomInserter = 1 in { |
| class Select_Pseudo<RegisterOperand RC> : |
| PseudoSE<(outs RC:$dst), (ins GPR32Opnd:$cond, RC:$T, RC:$F), |
| [(set RC:$dst, (select GPR32Opnd:$cond, RC:$T, RC:$F))]>, |
| ISA_MIPS1_NOT_4_32; |
| |
| class SelectFP_Pseudo_T<RegisterOperand RC> : |
| PseudoSE<(outs RC:$dst), (ins FCCRegsOpnd:$cond, RC:$T, RC:$F), |
| [(set RC:$dst, (MipsCMovFP_T RC:$T, FCCRegsOpnd:$cond, RC:$F))]>, |
| ISA_MIPS1_NOT_4_32; |
| |
| class SelectFP_Pseudo_F<RegisterOperand RC> : |
| PseudoSE<(outs RC:$dst), (ins FCCRegsOpnd:$cond, RC:$T, RC:$F), |
| [(set RC:$dst, (MipsCMovFP_F RC:$T, FCCRegsOpnd:$cond, RC:$F))]>, |
| ISA_MIPS1_NOT_4_32; |
| } |
| |
| def PseudoSELECT_I : Select_Pseudo<GPR32Opnd>; |
| def PseudoSELECT_I64 : Select_Pseudo<GPR64Opnd>; |
| def PseudoSELECT_S : Select_Pseudo<FGR32Opnd>; |
| def PseudoSELECT_D32 : Select_Pseudo<AFGR64Opnd>, FGR_32; |
| def PseudoSELECT_D64 : Select_Pseudo<FGR64Opnd>, FGR_64; |
| |
| def PseudoSELECTFP_T_I : SelectFP_Pseudo_T<GPR32Opnd>; |
| def PseudoSELECTFP_T_I64 : SelectFP_Pseudo_T<GPR64Opnd>; |
| def PseudoSELECTFP_T_S : SelectFP_Pseudo_T<FGR32Opnd>; |
| def PseudoSELECTFP_T_D32 : SelectFP_Pseudo_T<AFGR64Opnd>, FGR_32; |
| def PseudoSELECTFP_T_D64 : SelectFP_Pseudo_T<FGR64Opnd>, FGR_64; |
| |
| def PseudoSELECTFP_F_I : SelectFP_Pseudo_F<GPR32Opnd>; |
| def PseudoSELECTFP_F_I64 : SelectFP_Pseudo_F<GPR64Opnd>; |
| def PseudoSELECTFP_F_S : SelectFP_Pseudo_F<FGR32Opnd>; |
| def PseudoSELECTFP_F_D32 : SelectFP_Pseudo_F<AFGR64Opnd>, FGR_32; |
| def PseudoSELECTFP_F_D64 : SelectFP_Pseudo_F<FGR64Opnd>, FGR_64; |
