-//===- MipsInstrFPU.td - Mips FPU Instruction Information -------*- C++ -*-===//
+//===- MipsInstrFPU.td - Mips FPU Instruction Information --*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
//
-// This file contains the Mips implementation of the TargetInstrInfo class.
+// This file describes the Mips FPU instruction set.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Floating Point Compare and Branch
-def SDT_MipsFPBrcond : SDTypeProfile<0, 3, [SDTCisSameAs<0, 2>, SDTCisInt<0>,
- SDTCisVT<1, OtherVT>]>;
-def SDT_MipsFPCmp : SDTypeProfile<0, 3, [SDTCisSameAs<0, 1>, SDTCisFP<0>,
- SDTCisInt<2>]>;
-def SDT_MipsFPSelectCC : SDTypeProfile<1, 4, [SDTCisInt<1>, SDTCisInt<4>,
- SDTCisSameAs<0, 2>, SDTCisSameAs<2, 3>]>;
-
-def MipsFPRound : SDNode<"MipsISD::FPRound", SDTFPRoundOp, [SDNPOptInFlag]>;
-def MipsFPBrcond : SDNode<"MipsISD::FPBrcond", SDT_MipsFPBrcond,
- [SDNPHasChain]>;
-def MipsFPCmp : SDNode<"MipsISD::FPCmp", SDT_MipsFPCmp>;
-def MipsFPSelectCC : SDNode<"MipsISD::FPSelectCC", SDT_MipsFPSelectCC>;
+def SDT_MipsFPBrcond : SDTypeProfile<0, 2, [SDTCisInt<0>,
+ SDTCisVT<1, OtherVT>]>;
+def SDT_MipsFPCmp : SDTypeProfile<0, 3, [SDTCisSameAs<0, 1>, SDTCisFP<1>,
+ SDTCisInt<2>]>;
+def SDT_MipsCMovFP : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>,
+ SDTCisSameAs<1, 2>]>;
+def SDT_MipsBuildPairF64 : SDTypeProfile<1, 2, [SDTCisVT<0, f64>,
+ SDTCisVT<1, i32>,
+ SDTCisSameAs<1, 2>]>;
+def SDT_MipsExtractElementF64 : SDTypeProfile<1, 2, [SDTCisVT<0, i32>,
+ SDTCisVT<1, f64>,
+ SDTCisVT<0, i32>]>;
+
+def MipsFPCmp : SDNode<"MipsISD::FPCmp", SDT_MipsFPCmp, [SDNPOutGlue]>;
+def MipsCMovFP_T : SDNode<"MipsISD::CMovFP_T", SDT_MipsCMovFP, [SDNPInGlue]>;
+def MipsCMovFP_F : SDNode<"MipsISD::CMovFP_F", SDT_MipsCMovFP, [SDNPInGlue]>;
+def MipsFPRound : SDNode<"MipsISD::FPRound", SDTFPRoundOp, [SDNPOptInGlue]>;
+def MipsFPBrcond : SDNode<"MipsISD::FPBrcond", SDT_MipsFPBrcond,
+ [SDNPHasChain, SDNPOptInGlue]>;
+def MipsBuildPairF64 : SDNode<"MipsISD::BuildPairF64", SDT_MipsBuildPairF64>;
+def MipsExtractElementF64 : SDNode<"MipsISD::ExtractElementF64",
+ SDT_MipsExtractElementF64>;
// Operand for printing out a condition code.
let PrintMethod = "printFCCOperand" in
def In32BitMode : Predicate<"!Subtarget.isFP64bit()">;
def IsSingleFloat : Predicate<"Subtarget.isSingleFloat()">;
def IsNotSingleFloat : Predicate<"!Subtarget.isSingleFloat()">;
-def IsNotMipsI : Predicate<"!Subtarget.isMips1()">;
//===----------------------------------------------------------------------===//
// Instruction Class Templates
//
-// A set of multiclasses is used to address the register usage.
+// A set of multiclasses is used to address the register usage.
//
// S32 - single precision in 16 32bit even fp registers
// single precision in 32 32bit fp registers in SingleOnly mode
// Only S32 and D32 are supported right now.
//===----------------------------------------------------------------------===//
-multiclass FFR1_1<bits<6> funct, string asmstr>
+multiclass FFR1_1<bits<6> funct, string asmstr>
{
def _S32 : FFR<0x11, funct, 0x0, (outs FGR32:$fd), (ins FGR32:$fs),
- !strconcat(asmstr, ".s $fd, $fs"), []>;
+ !strconcat(asmstr, ".s\t$fd, $fs"), []>;
def _D32 : FFR<0x11, funct, 0x1, (outs FGR32:$fd), (ins AFGR64:$fs),
- !strconcat(asmstr, ".d $fd, $fs"), []>, Requires<[In32BitMode]>;
+ !strconcat(asmstr, ".d\t$fd, $fs"), []>, Requires<[In32BitMode]>;
}
-multiclass FFR1_2<bits<6> funct, string asmstr, SDNode FOp>
+multiclass FFR1_2<bits<6> funct, string asmstr, SDNode FOp>
{
def _S32 : FFR<0x11, funct, 0x0, (outs FGR32:$fd), (ins FGR32:$fs),
- !strconcat(asmstr, ".s $fd, $fs"),
+ !strconcat(asmstr, ".s\t$fd, $fs"),
[(set FGR32:$fd, (FOp FGR32:$fs))]>;
def _D32 : FFR<0x11, funct, 0x1, (outs AFGR64:$fd), (ins AFGR64:$fs),
- !strconcat(asmstr, ".d $fd, $fs"),
+ !strconcat(asmstr, ".d\t$fd, $fs"),
[(set AFGR64:$fd, (FOp AFGR64:$fs))]>, Requires<[In32BitMode]>;
}
-class FFR1_3<bits<6> funct, bits<5> fmt, RegisterClass RcSrc,
- RegisterClass RcDst, string asmstr>:
- FFR<0x11, funct, fmt, (outs RcSrc:$fd), (ins RcDst:$fs),
- !strconcat(asmstr, " $fd, $fs"), []>;
+class FFR1_3<bits<6> funct, bits<5> fmt, RegisterClass RcSrc,
+ RegisterClass RcDst, string asmstr>:
+ FFR<0x11, funct, fmt, (outs RcSrc:$fd), (ins RcDst:$fs),
+ !strconcat(asmstr, "\t$fd, $fs"), []>;
-multiclass FFR1_4<bits<6> funct, string asmstr, SDNode FOp> {
- def _S32 : FFR<0x11, funct, 0x0, (outs FGR32:$fd),
- (ins FGR32:$fs, FGR32:$ft),
- !strconcat(asmstr, ".s $fd, $fs, $ft"),
+multiclass FFR1_4<bits<6> funct, string asmstr, SDNode FOp, bit isComm = 0> {
+ let isCommutable = isComm in {
+ def _S32 : FFR<0x11, funct, 0x0, (outs FGR32:$fd),
+ (ins FGR32:$fs, FGR32:$ft),
+ !strconcat(asmstr, ".s\t$fd, $fs, $ft"),
[(set FGR32:$fd, (FOp FGR32:$fs, FGR32:$ft))]>;
- def _D32 : FFR<0x11, funct, 0x1, (outs AFGR64:$fd),
- (ins AFGR64:$fs, AFGR64:$ft),
- !strconcat(asmstr, ".d $fd, $fs, $ft"),
+ def _D32 : FFR<0x11, funct, 0x1, (outs AFGR64:$fd),
+ (ins AFGR64:$fs, AFGR64:$ft),
+ !strconcat(asmstr, ".d\t$fd, $fs, $ft"),
[(set AFGR64:$fd, (FOp AFGR64:$fs, AFGR64:$ft))]>,
Requires<[In32BitMode]>;
+ }
}
//===----------------------------------------------------------------------===//
defm TRUNC_W : FFR1_1<0b001101, "trunc.w">;
defm CVTW : FFR1_1<0b100100, "cvt.w">;
- defm FABS : FFR1_2<0b000101, "abs", fabs>;
- defm FNEG : FFR1_2<0b000111, "neg", fneg>;
+ defm FABS : FFR1_2<0b000101, "abs", fabs>;
+ defm FNEG : FFR1_2<0b000111, "neg", fneg>;
defm FSQRT : FFR1_2<0b000100, "sqrt", fsqrt>;
/// Convert to Single Precison
def TRUNC_LD : FFR1_3<0b001001, 0x1, AFGR64, AFGR64, "trunc.l">;
/// Convert to long signed integer
- def CVTL_S : FFR1_3<0b100101, 0x0, FGR32, FGR32, "cvt.l">;
- def CVTL_D : FFR1_3<0b100101, 0x1, AFGR64, AFGR64, "cvt.l">;
-
- /// Convert to Double Precison
- def CVTD_S32 : FFR1_3<0b100001, 0x0, AFGR64, FGR32, "cvt.d.s">;
- def CVTD_W32 : FFR1_3<0b100001, 0x2, AFGR64, FGR32, "cvt.d.w">;
- def CVTD_L32 : FFR1_3<0b100001, 0x3, AFGR64, AFGR64, "cvt.d.l">;
-
+ def CVTL_S : FFR1_3<0b100101, 0x0, FGR32, FGR32, "cvt.l">;
+ def CVTL_D : FFR1_3<0b100101, 0x1, AFGR64, AFGR64, "cvt.l">;
+
+ /// Convert to Double Precison
+ def CVTD_S32 : FFR1_3<0b100001, 0x0, AFGR64, FGR32, "cvt.d.s">;
+ def CVTD_W32 : FFR1_3<0b100001, 0x2, AFGR64, FGR32, "cvt.d.w">;
+ def CVTD_L32 : FFR1_3<0b100001, 0x3, AFGR64, AFGR64, "cvt.d.l">;
+
/// Convert to Single Precison
def CVTS_D32 : FFR1_3<0b100000, 0x1, FGR32, AFGR64, "cvt.s.d">;
- def CVTS_L32 : FFR1_3<0b100000, 0x3, FGR32, AFGR64, "cvt.s.l">;
+ def CVTS_L32 : FFR1_3<0b100000, 0x3, FGR32, AFGR64, "cvt.s.l">;
}
}
// The odd-numbered registers are only referenced when doing loads,
// stores, and moves between floating-point and integer registers.
-// When defining instructions, we reference all 32-bit registers,
+// When defining instructions, we reference all 32-bit registers,
// regardless of register aliasing.
let fd = 0 in {
/// Move Control Registers From/To CPU Registers
def CFC1 : FFR<0x11, 0x0, 0x2, (outs CPURegs:$rt), (ins CCR:$fs),
- "cfc1 $rt, $fs", []>;
+ "cfc1\t$rt, $fs", []>;
def CTC1 : FFR<0x11, 0x0, 0x6, (outs CCR:$rt), (ins CPURegs:$fs),
- "ctc1 $fs, $rt", []>;
-
+ "ctc1\t$fs, $rt", []>;
+
def MFC1 : FFR<0x11, 0x00, 0x00, (outs CPURegs:$rt), (ins FGR32:$fs),
- "mfc1 $rt, $fs", []>;
+ "mfc1\t$rt, $fs", []>;
def MTC1 : FFR<0x11, 0x00, 0x04, (outs FGR32:$fs), (ins CPURegs:$rt),
- "mtc1 $rt, $fs", []>;
+ "mtc1\t$rt, $fs", []>;
}
def FMOV_S32 : FFR<0x11, 0b000110, 0x0, (outs FGR32:$fd), (ins FGR32:$fs),
- "mov.s $fd, $fs", []>;
+ "mov.s\t$fd, $fs", []>;
def FMOV_D32 : FFR<0x11, 0b000110, 0x1, (outs AFGR64:$fd), (ins AFGR64:$fs),
- "mov.d $fd, $fs", []>;
+ "mov.d\t$fd, $fs", []>;
/// Floating Point Memory Instructions
-let Predicates = [IsNotSingleFloat, IsNotMipsI] in {
- def LDC1 : FFI<0b110101, (outs AFGR64:$ft), (ins mem:$addr),
- "ldc1 $ft, $addr", [(set AFGR64:$ft, (load addr:$addr))]>;
+let Predicates = [IsNotSingleFloat] in {
+ def LDC1 : FFI<0b110101, (outs AFGR64:$ft), (ins mem:$addr),
+ "ldc1\t$ft, $addr", [(set AFGR64:$ft, (load addr:$addr))]>;
- def SDC1 : FFI<0b111101, (outs), (ins AFGR64:$ft, mem:$addr),
- "sdc1 $ft, $addr", [(store AFGR64:$ft, addr:$addr)]>;
+ def SDC1 : FFI<0b111101, (outs), (ins AFGR64:$ft, mem:$addr),
+ "sdc1\t$ft, $addr", [(store AFGR64:$ft, addr:$addr)]>;
}
-// LWC1 and SWC1 can always be emited with odd registers.
-def LWC1 : FFI<0b110001, (outs FGR32:$ft), (ins mem:$addr), "lwc1 $ft, $addr",
- [(set FGR32:$ft, (load addr:$addr))]>;
-def SWC1 : FFI<0b111001, (outs), (ins FGR32:$ft, mem:$addr), "swc1 $ft, $addr",
- [(store FGR32:$ft, addr:$addr)]>;
+// LWC1 and SWC1 can always be emitted with odd registers.
+def LWC1 : FFI<0b110001, (outs FGR32:$ft), (ins mem:$addr), "lwc1\t$ft, $addr",
+ [(set FGR32:$ft, (load addr:$addr))]>;
+def SWC1 : FFI<0b111001, (outs), (ins FGR32:$ft, mem:$addr),
+ "swc1\t$ft, $addr", [(store FGR32:$ft, addr:$addr)]>;
/// Floating-point Aritmetic
-defm FADD : FFR1_4<0x10, "add", fadd>;
+defm FADD : FFR1_4<0x10, "add", fadd, 1>;
defm FDIV : FFR1_4<0x03, "div", fdiv>;
-defm FMUL : FFR1_4<0x02, "mul", fmul>;
+defm FMUL : FFR1_4<0x02, "mul", fmul, 1>;
defm FSUB : FFR1_4<0x01, "sub", fsub>;
//===----------------------------------------------------------------------===//
// Floating Point Branch Codes
//===----------------------------------------------------------------------===//
-// Mips branch codes. These correspond to condcode in MipsInstrInfo.h.
+// Mips branch codes. These correspond to condcode in MipsInstrInfo.h.
// They must be kept in synch.
def MIPS_BRANCH_F : PatLeaf<(i32 0)>;
def MIPS_BRANCH_T : PatLeaf<(i32 1)>;
def MIPS_BRANCH_TL : PatLeaf<(i32 3)>;
/// Floating Point Branch of False/True (Likely)
-let isBranch=1, isTerminator=1, hasDelaySlot=1, base=0x8, Uses=[FCR31] in {
- class FBRANCH<PatLeaf op, string asmstr> : FFI<0x11, (outs),
- (ins brtarget:$dst), !strconcat(asmstr, " $dst"),
- [(MipsFPBrcond op, bb:$dst, FCR31)]>;
-}
+let isBranch=1, isTerminator=1, hasDelaySlot=1, base=0x8, Uses=[FCR31] in
+ class FBRANCH<PatLeaf op, string asmstr> : FFI<0x11, (outs),
+ (ins brtarget:$dst), !strconcat(asmstr, "\t$dst"),
+ [(MipsFPBrcond op, bb:$dst)]>;
+
def BC1F : FBRANCH<MIPS_BRANCH_F, "bc1f">;
def BC1T : FBRANCH<MIPS_BRANCH_T, "bc1t">;
def BC1FL : FBRANCH<MIPS_BRANCH_FL, "bc1fl">;
//===----------------------------------------------------------------------===//
// Floating Point Flag Conditions
//===----------------------------------------------------------------------===//
-// Mips condition codes. They must correspond to condcode in MipsInstrInfo.h.
+// Mips condition codes. They must correspond to condcode in MipsInstrInfo.h.
// They must be kept in synch.
def MIPS_FCOND_F : PatLeaf<(i32 0)>;
def MIPS_FCOND_UN : PatLeaf<(i32 1)>;
-def MIPS_FCOND_EQ : PatLeaf<(i32 2)>;
+def MIPS_FCOND_OEQ : PatLeaf<(i32 2)>;
def MIPS_FCOND_UEQ : PatLeaf<(i32 3)>;
def MIPS_FCOND_OLT : PatLeaf<(i32 4)>;
def MIPS_FCOND_ULT : PatLeaf<(i32 5)>;
def MIPS_FCOND_NGT : PatLeaf<(i32 15)>;
/// Floating Point Compare
-let hasDelaySlot = 1, Defs=[FCR31] in {
+let Defs=[FCR31] in {
def FCMP_S32 : FCC<0x0, (outs), (ins FGR32:$fs, FGR32:$ft, condcode:$cc),
- "c.$cc.s $fs, $ft", [(MipsFPCmp FGR32:$fs, FGR32:$ft, imm:$cc),
- (implicit FCR31)]>;
-
+ "c.$cc.s\t$fs, $ft",
+ [(MipsFPCmp FGR32:$fs, FGR32:$ft, imm:$cc)]>;
+
def FCMP_D32 : FCC<0x1, (outs), (ins AFGR64:$fs, AFGR64:$ft, condcode:$cc),
- "c.$cc.d $fs, $ft", [(MipsFPCmp AFGR64:$fs, AFGR64:$ft, imm:$cc),
- (implicit FCR31)]>, Requires<[In32BitMode]>;
+ "c.$cc.d\t$fs, $ft",
+ [(MipsFPCmp AFGR64:$fs, AFGR64:$ft, imm:$cc)]>,
+ Requires<[In32BitMode]>;
}
-//===----------------------------------------------------------------------===//
-// Floating Point Pseudo-Instructions
-//===----------------------------------------------------------------------===//
-// For some explanation, see Select_CC at MipsInstrInfo.td. We also embedd a
-// condiciton code to enable easy handling by the Custom Inserter.
-let usesCustomInserter = 1, Uses=[FCR31] in {
- class PseudoFPSelCC<RegisterClass RC, string asmstr> :
- MipsPseudo<(outs RC:$dst),
- (ins CPURegs:$CmpRes, RC:$T, RC:$F, condcode:$cc), asmstr,
- [(set RC:$dst, (MipsFPSelectCC CPURegs:$CmpRes, RC:$T, RC:$F,
- imm:$cc))]>;
+// Conditional moves:
+// These instructions are expanded in
+// MipsISelLowering::EmitInstrWithCustomInserter if target does not have
+// conditional move instructions.
+// flag:int, data:float
+let usesCustomInserter = 1, Constraints = "$F = $dst" in
+class CondMovIntFP<RegisterClass RC, bits<5> fmt, bits<6> func,
+ string instr_asm> :
+ FFR<0x11, func, fmt, (outs RC:$dst), (ins RC:$T, CPURegs:$cond, RC:$F),
+ !strconcat(instr_asm, "\t$dst, $T, $cond"), []>;
+
+def MOVZ_S : CondMovIntFP<FGR32, 16, 18, "movz.s">;
+def MOVN_S : CondMovIntFP<FGR32, 16, 19, "movn.s">;
+
+let Predicates = [In32BitMode] in {
+ def MOVZ_D : CondMovIntFP<AFGR64, 17, 18, "movz.d">;
+ def MOVN_D : CondMovIntFP<AFGR64, 17, 19, "movn.d">;
}
-// The values to be selected are fp but the condition test is with integers.
-def Select_CC_S32 : PseudoSelCC<FGR32, "# MipsSelect_CC_S32_f32">;
-def Select_CC_D32 : PseudoSelCC<AFGR64, "# MipsSelect_CC_D32_f32">,
- Requires<[In32BitMode]>;
+defm : MovzPats<FGR32, MOVZ_S>;
+defm : MovnPats<FGR32, MOVN_S>;
+
+let Predicates = [In32BitMode] in {
+ defm : MovzPats<AFGR64, MOVZ_D>;
+ defm : MovnPats<AFGR64, MOVN_D>;
+}
-// The values to be selected are int but the condition test is done with fp.
-def Select_FCC : PseudoFPSelCC<CPURegs, "# MipsSelect_FCC">;
+let usesCustomInserter = 1, Uses = [FCR31], Constraints = "$F = $dst" in {
+// flag:float, data:int
+class CondMovFPInt<SDNode cmov, bits<1> tf, string instr_asm> :
+ FCMOV<tf, (outs CPURegs:$dst), (ins CPURegs:$T, CPURegs:$F),
+ !strconcat(instr_asm, "\t$dst, $T, $$fcc0"),
+ [(set CPURegs:$dst, (cmov CPURegs:$T, CPURegs:$F))]>;
+
+// flag:float, data:float
+class CondMovFPFP<RegisterClass RC, SDNode cmov, bits<5> fmt, bits<1> tf,
+ string instr_asm> :
+ FFCMOV<fmt, tf, (outs RC:$dst), (ins RC:$T, RC:$F),
+ !strconcat(instr_asm, "\t$dst, $T, $$fcc0"),
+ [(set RC:$dst, (cmov RC:$T, RC:$F))]>;
+}
-// The values to be selected and the condition test is done with fp.
-def Select_FCC_S32 : PseudoFPSelCC<FGR32, "# MipsSelect_FCC_S32_f32">;
-def Select_FCC_D32 : PseudoFPSelCC<AFGR64, "# MipsSelect_FCC_D32_f32">,
- Requires<[In32BitMode]>;
+def MOVT : CondMovFPInt<MipsCMovFP_T, 1, "movt">;
+def MOVF : CondMovFPInt<MipsCMovFP_F, 0, "movf">;
+def MOVT_S : CondMovFPFP<FGR32, MipsCMovFP_T, 16, 1, "movt.s">;
+def MOVF_S : CondMovFPFP<FGR32, MipsCMovFP_F, 16, 0, "movf.s">;
-def MOVCCRToCCR : MipsPseudo<(outs CCR:$dst), (ins CCR:$src),
- "# MOVCCRToCCR", []>;
+let Predicates = [In32BitMode] in {
+ def MOVT_D : CondMovFPFP<AFGR64, MipsCMovFP_T, 17, 1, "movt.d">;
+ def MOVF_D : CondMovFPFP<AFGR64, MipsCMovFP_F, 17, 0, "movf.d">;
+}
+
+//===----------------------------------------------------------------------===//
+// Floating Point Pseudo-Instructions
+//===----------------------------------------------------------------------===//
+def MOVCCRToCCR : MipsPseudo<(outs CCR:$dst), (ins CCR:$src),
+ "# MOVCCRToCCR", []>;
+
+// This pseudo instr gets expanded into 2 mtc1 instrs after register
+// allocation.
+def BuildPairF64 :
+ MipsPseudo<(outs AFGR64:$dst),
+ (ins CPURegs:$lo, CPURegs:$hi), "",
+ [(set AFGR64:$dst, (MipsBuildPairF64 CPURegs:$lo, CPURegs:$hi))]>;
+
+// This pseudo instr gets expanded into 2 mfc1 instrs after register
+// allocation.
+// if n is 0, lower part of src is extracted.
+// if n is 1, higher part of src is extracted.
+def ExtractElementF64 :
+ MipsPseudo<(outs CPURegs:$dst),
+ (ins AFGR64:$src, i32imm:$n), "",
+ [(set CPURegs:$dst,
+ (MipsExtractElementF64 AFGR64:$src, imm:$n))]>;
//===----------------------------------------------------------------------===//
// Floating Point Patterns
def : Pat<(f64 (sint_to_fp CPURegs:$src)), (CVTD_W32 (MTC1 CPURegs:$src))>;
def : Pat<(i32 (fp_to_sint FGR32:$src)), (MFC1 (TRUNC_W_S32 FGR32:$src))>;
+def : Pat<(i32 (fp_to_sint AFGR64:$src)), (MFC1 (TRUNC_W_D32 AFGR64:$src))>;
def : Pat<(i32 (bitconvert FGR32:$src)), (MFC1 FGR32:$src)>;
def : Pat<(f32 (bitconvert CPURegs:$src)), (MTC1 CPURegs:$src)>;
-let Predicates = [In32BitMode] in {
+let Predicates = [In32BitMode] in {
def : Pat<(f32 (fround AFGR64:$src)), (CVTS_D32 AFGR64:$src)>;
def : Pat<(f64 (fextend FGR32:$src)), (CVTD_S32 FGR32:$src)>;
}
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