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//===-- 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, RegisterClass CRC, RegisterClass DRC,
InstrItinClass Itin> :
InstSE<(outs DRC:$rd), (ins DRC:$rs, CRC:$rt, DRC:$F),
!strconcat(opstr, "\t$rd, $rs, $rt"), [], Itin, FrmFR> {
let Constraints = "$F = $rd";
}
// cond:int, data:float
class CMov_I_F_FT<string opstr, RegisterClass CRC, RegisterClass DRC,
InstrItinClass Itin> :
InstSE<(outs DRC:$fd), (ins DRC:$fs, CRC:$rt, DRC:$F),
!strconcat(opstr, "\t$fd, $fs, $rt"), [], Itin, FrmFR> {
let Constraints = "$F = $fd";
}
// cond:float, data:int
class CMov_F_I_FT<string opstr, RegisterClass RC, InstrItinClass Itin,
SDPatternOperator OpNode = null_frag> :
InstSE<(outs RC:$rd), (ins RC:$rs, RC:$F),
!strconcat(opstr, "\t$rd, $rs, $$fcc0"),
[(set RC:$rd, (OpNode RC:$rs, RC:$F))], Itin, FrmFR> {
let Uses = [FCR31];
let Constraints = "$F = $rd";
}
// cond:float, data:float
class CMov_F_F_FT<string opstr, RegisterClass RC, InstrItinClass Itin,
SDPatternOperator OpNode = null_frag> :
InstSE<(outs RC:$fd), (ins RC:$fs, RC:$F),
!strconcat(opstr, "\t$fd, $fs, $$fcc0"),
[(set RC:$fd, (OpNode RC:$fs, RC:$F))], Itin, FrmFR> {
let Uses = [FCR31];
let Constraints = "$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.
def MOVZ_I_I : CMov_I_I_FT<"movz", CPURegs, CPURegs, NoItinerary>,
ADD_FM<0, 0xa>;
let Predicates = [HasStdEnc],
DecoderNamespace = "Mips64" in {
def MOVZ_I_I64 : CMov_I_I_FT<"movz", CPURegs, CPU64Regs, NoItinerary>,
ADD_FM<0, 0xa>;
def MOVZ_I64_I : CMov_I_I_FT<"movz", CPU64Regs, CPURegs, NoItinerary>,
ADD_FM<0, 0xa> {
let isCodeGenOnly = 1;
}
def MOVZ_I64_I64 : CMov_I_I_FT<"movz", CPU64Regs, CPU64Regs, NoItinerary>,
ADD_FM<0, 0xa> {
let isCodeGenOnly = 1;
}
}
def MOVN_I_I : CMov_I_I_FT<"movn", CPURegs, CPURegs, NoItinerary>,
ADD_FM<0, 0xb>;
let Predicates = [HasStdEnc],
DecoderNamespace = "Mips64" in {
def MOVN_I_I64 : CMov_I_I_FT<"movn", CPURegs, CPU64Regs, NoItinerary>,
ADD_FM<0, 0xb>;
def MOVN_I64_I : CMov_I_I_FT<"movn", CPU64Regs, CPURegs, NoItinerary>,
ADD_FM<0, 0xb> {
let isCodeGenOnly = 1;
}
def MOVN_I64_I64 : CMov_I_I_FT<"movn", CPU64Regs, CPU64Regs, NoItinerary>,
ADD_FM<0, 0xb> {
let isCodeGenOnly = 1;
}
}
def MOVZ_I_S : CMov_I_F_FT<"movz.s", CPURegs, FGR32, IIFmove>,
CMov_I_F_FM<18, 16>;
def MOVZ_I64_S : CMov_I_F_FT<"movz.s", CPU64Regs, FGR32, IIFmove>,
CMov_I_F_FM<18, 16>, Requires<[HasMips64, HasStdEnc]> {
let DecoderNamespace = "Mips64";
}
def MOVN_I_S : CMov_I_F_FT<"movn.s", CPURegs, FGR32, IIFmove>,
CMov_I_F_FM<19, 16>;
def MOVN_I64_S : CMov_I_F_FT<"movn.s", CPU64Regs, FGR32, IIFmove>,
CMov_I_F_FM<19, 16>, Requires<[HasMips64, HasStdEnc]> {
let DecoderNamespace = "Mips64";
}
let Predicates = [NotFP64bit, HasStdEnc] in {
def MOVZ_I_D32 : CMov_I_F_FT<"movz.d", CPURegs, AFGR64, IIFmove>,
CMov_I_F_FM<18, 17>;
def MOVN_I_D32 : CMov_I_F_FT<"movn.d", CPURegs, AFGR64, IIFmove>,
CMov_I_F_FM<19, 17>;
}
let Predicates = [IsFP64bit, HasStdEnc],
DecoderNamespace = "Mips64" in {
def MOVZ_I_D64 : CMov_I_F_FT<"movz.d", CPURegs, FGR64, IIFmove>,
CMov_I_F_FM<18, 17>;
def MOVZ_I64_D64 : CMov_I_F_FT<"movz.d", CPU64Regs, FGR64, IIFmove>,
CMov_I_F_FM<18, 17> {
let isCodeGenOnly = 1;
}
def MOVN_I_D64 : CMov_I_F_FT<"movn.d", CPURegs, FGR64, IIFmove>,
CMov_I_F_FM<19, 17>;
def MOVN_I64_D64 : CMov_I_F_FT<"movn.d", CPU64Regs, FGR64, IIFmove>,
CMov_I_F_FM<19, 17> {
let isCodeGenOnly = 1;
}
}
def MOVT_I : CMov_F_I_FT<"movt", CPURegs, IIAlu, MipsCMovFP_T>, CMov_F_I_FM<1>;
def MOVT_I64 : CMov_F_I_FT<"movt", CPU64Regs, IIAlu, MipsCMovFP_T>,
CMov_F_I_FM<1>, Requires<[HasMips64, HasStdEnc]> {
let DecoderNamespace = "Mips64";
}
def MOVF_I : CMov_F_I_FT<"movf", CPURegs, IIAlu, MipsCMovFP_F>, CMov_F_I_FM<0>;
def MOVF_I64 : CMov_F_I_FT<"movf", CPU64Regs, IIAlu, MipsCMovFP_F>,
CMov_F_I_FM<0>, Requires<[HasMips64, HasStdEnc]> {
let DecoderNamespace = "Mips64";
}
def MOVT_S : CMov_F_F_FT<"movt.s", FGR32, IIFmove, MipsCMovFP_T>,
CMov_F_F_FM<16, 1>;
def MOVF_S : CMov_F_F_FT<"movf.s", FGR32, IIFmove, MipsCMovFP_F>,
CMov_F_F_FM<16, 0>;
let Predicates = [NotFP64bit, HasStdEnc] in {
def MOVT_D32 : CMov_F_F_FT<"movt.d", AFGR64, IIFmove, MipsCMovFP_T>,
CMov_F_F_FM<17, 1>;
def MOVF_D32 : CMov_F_F_FT<"movf.d", AFGR64, IIFmove, MipsCMovFP_F>,
CMov_F_F_FM<17, 0>;
}
let Predicates = [IsFP64bit, HasStdEnc],
DecoderNamespace = "Mips64" in {
def MOVT_D64 : CMov_F_F_FT<"movt.d", FGR64, IIFmove, MipsCMovFP_T>,
CMov_F_F_FM<17, 1>;
def MOVF_D64 : CMov_F_F_FT<"movf.d", FGR64, IIFmove, MipsCMovFP_F>,
CMov_F_F_FM<17, 0>;
}
// Instantiation of conditional move patterns.
defm : MovzPats0<CPURegs, CPURegs, MOVZ_I_I, SLT, SLTu, SLTi, SLTiu>;
defm : MovzPats1<CPURegs, CPURegs, MOVZ_I_I, XOR>;
defm : MovzPats2<CPURegs, CPURegs, MOVZ_I_I, XORi>;
let Predicates = [HasMips64, HasStdEnc] in {
defm : MovzPats0<CPURegs, CPU64Regs, MOVZ_I_I64, SLT, SLTu, SLTi, SLTiu>;
defm : MovzPats0<CPU64Regs, CPURegs, MOVZ_I_I, SLT64, SLTu64, SLTi64,
SLTiu64>;
defm : MovzPats0<CPU64Regs, CPU64Regs, MOVZ_I_I64, SLT64, SLTu64, SLTi64,
SLTiu64>;
defm : MovzPats1<CPURegs, CPU64Regs, MOVZ_I_I64, XOR>;
defm : MovzPats1<CPU64Regs, CPURegs, MOVZ_I64_I, XOR64>;
defm : MovzPats1<CPU64Regs, CPU64Regs, MOVZ_I64_I64, XOR64>;
defm : MovzPats2<CPURegs, CPU64Regs, MOVZ_I_I64, XORi>;
defm : MovzPats2<CPU64Regs, CPURegs, MOVZ_I64_I, XORi64>;
defm : MovzPats2<CPU64Regs, CPU64Regs, MOVZ_I64_I64, XORi64>;
}
defm : MovnPats<CPURegs, CPURegs, MOVN_I_I, XOR>;
let Predicates = [HasMips64, HasStdEnc] in {
defm : MovnPats<CPURegs, CPU64Regs, MOVN_I_I64, XOR>;
defm : MovnPats<CPU64Regs, CPURegs, MOVN_I64_I, XOR64>;
defm : MovnPats<CPU64Regs, CPU64Regs, MOVN_I64_I64, XOR64>;
}
defm : MovzPats0<CPURegs, FGR32, MOVZ_I_S, SLT, SLTu, SLTi, SLTiu>;
defm : MovzPats1<CPURegs, FGR32, MOVZ_I_S, XOR>;
defm : MovnPats<CPURegs, FGR32, MOVN_I_S, XOR>;
let Predicates = [HasMips64, HasStdEnc] in {
defm : MovzPats0<CPU64Regs, FGR32, MOVZ_I_S, SLT64, SLTu64, SLTi64,
SLTiu64>;
defm : MovzPats1<CPU64Regs, FGR32, MOVZ_I64_S, XOR64>;
defm : MovnPats<CPU64Regs, FGR32, MOVN_I64_S, XOR64>;
}
let Predicates = [NotFP64bit, HasStdEnc] in {
defm : MovzPats0<CPURegs, AFGR64, MOVZ_I_D32, SLT, SLTu, SLTi, SLTiu>;
defm : MovzPats1<CPURegs, AFGR64, MOVZ_I_D32, XOR>;
defm : MovnPats<CPURegs, AFGR64, MOVN_I_D32, XOR>;
}
let Predicates = [IsFP64bit, HasStdEnc] in {
defm : MovzPats0<CPURegs, FGR64, MOVZ_I_D64, SLT, SLTu, SLTi, SLTiu>;
defm : MovzPats0<CPU64Regs, FGR64, MOVZ_I_D64, SLT64, SLTu64, SLTi64,
SLTiu64>;
defm : MovzPats1<CPURegs, FGR64, MOVZ_I_D64, XOR>;
defm : MovzPats1<CPU64Regs, FGR64, MOVZ_I64_D64, XOR64>;
defm : MovnPats<CPURegs, FGR64, MOVN_I_D64, XOR>;
defm : MovnPats<CPU64Regs, FGR64, MOVN_I64_D64, XOR64>;
}
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