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llvm-mirror/lib/Target/Mips/MipsCondMov.td
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

308 lines
14 KiB
TableGen

//===-- MipsCondMov.td - Describe Mips Conditional Moves --*- tablegen -*--===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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:$F))]>,
ISA_MIPS1_NOT_4_32;
}
def PseudoSELECT_I : Select_Pseudo<GPR32Opnd>;
def PseudoSELECT_I64 : Select_Pseudo<GPR64Opnd>;
def PseudoSELECT_S : Select_Pseudo<FGR32Opnd>;
def PseudoSELECT_D32 : Select_Pseudo<AFGR64Opnd>, FGR_32;
def PseudoSELECT_D64 : Select_Pseudo<FGR64Opnd>, FGR_64;
def PseudoSELECTFP_T_I : SelectFP_Pseudo_T<GPR32Opnd>;
def PseudoSELECTFP_T_I64 : SelectFP_Pseudo_T<GPR64Opnd>;
def PseudoSELECTFP_T_S : SelectFP_Pseudo_T<FGR32Opnd>;
def PseudoSELECTFP_T_D32 : SelectFP_Pseudo_T<AFGR64Opnd>, FGR_32;
def PseudoSELECTFP_T_D64 : SelectFP_Pseudo_T<FGR64Opnd>, FGR_64;
def PseudoSELECTFP_F_I : SelectFP_Pseudo_F<GPR32Opnd>;
def PseudoSELECTFP_F_I64 : SelectFP_Pseudo_F<GPR64Opnd>;
def PseudoSELECTFP_F_S : SelectFP_Pseudo_F<FGR32Opnd>;
def PseudoSELECTFP_F_D32 : SelectFP_Pseudo_F<AFGR64Opnd>, FGR_32;
def PseudoSELECTFP_F_D64 : SelectFP_Pseudo_F<FGR64Opnd>, FGR_64;
let usesCustomInserter = 1 in {
class D_SELECT_CLASS<RegisterOperand RC> :
PseudoSE<(outs RC:$dst1, RC:$dst2),
(ins GPR32Opnd:$cond, RC:$a1, RC:$a2, RC:$b1, RC:$b2), []>,
ISA_MIPS1_NOT_4_32;
}
def PseudoD_SELECT_I : D_SELECT_CLASS<GPR32Opnd>;
def PseudoD_SELECT_I64 : D_SELECT_CLASS<GPR64Opnd>;