-// Floating point support. All FP Stack operations are represented with two
-// instructions here. The first instruction, generated by the instruction
-// selector, uses "RFP" registers: a traditional register file to reference
-// floating point values. These instructions are all psuedo instructions and
-// use the "Fp" prefix. The second instruction is defined with FPI, which is
-// the actual instruction emitted by the assembler. The FP stackifier pass
-// converts one to the other after register allocation occurs.
-//
-// Note that the FpI instruction should have instruction selection info (e.g.
-// a pattern) and the FPI instruction should have emission info (e.g. opcode
-// encoding and asm printing info).
-
-// FPI - Floating Point Instruction template.
-class FPI<bits<8> o, Format F, dag ops, string asm> : I<o, F, ops, asm, []> {}
-
-// FpI_ - Floating Point Psuedo Instruction template. Not Predicated.
-class FpI_<dag ops, FPFormat fp, list<dag> pattern>
- : X86Inst<0, Pseudo, NoImm, ops, ""> {
- let FPForm = fp; let FPFormBits = FPForm.Value;
- let Pattern = pattern;
-}
-
-// Random Pseudo Instructions.
-def FpGETRESULT : FpI_<(ops RFP:$dst), SpecialFP,
- [(set RFP:$dst, X86fpget)]>; // FPR = ST(0)
-
-let noResults = 1 in
- def FpSETRESULT : FpI_<(ops RFP:$src), SpecialFP,
- [(X86fpset RFP:$src)]>, Imp<[], [ST0]>; // ST(0) = FPR
-
-// FpI - Floating Point Psuedo Instruction template. Predicated on FPStack.
-class FpI<dag ops, FPFormat fp, list<dag> pattern> :
- FpI_<ops, fp, pattern>, Requires<[FPStack]>;
-
-
-def FpMOV : FpI<(ops RFP:$dst, RFP:$src), SpecialFP, []>; // f1 = fmov f2
-
-// Arithmetic
-// Add, Sub, Mul, Div.
-def FpADD : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), TwoArgFP,
- [(set RFP:$dst, (fadd RFP:$src1, RFP:$src2))]>;
-def FpSUB : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), TwoArgFP,
- [(set RFP:$dst, (fsub RFP:$src1, RFP:$src2))]>;
-def FpMUL : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), TwoArgFP,
- [(set RFP:$dst, (fmul RFP:$src1, RFP:$src2))]>;
-def FpDIV : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), TwoArgFP,
- [(set RFP:$dst, (fdiv RFP:$src1, RFP:$src2))]>;
-
-class FPST0rInst<bits<8> o, string asm>
- : FPI<o, AddRegFrm, (ops RST:$op), asm>, D8;
-class FPrST0Inst<bits<8> o, string asm>
- : FPI<o, AddRegFrm, (ops RST:$op), asm>, DC;
-class FPrST0PInst<bits<8> o, string asm>
- : FPI<o, AddRegFrm, (ops RST:$op), asm>, DE;
-
-// Binary Ops with a memory source.
-def FpADD32m : FpI<(ops RFP:$dst, RFP:$src1, f32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fadd RFP:$src1,
- (extloadf64f32 addr:$src2)))]>;
- // ST(0) = ST(0) + [mem32]
-def FpADD64m : FpI<(ops RFP:$dst, RFP:$src1, f64mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fadd RFP:$src1, (loadf64 addr:$src2)))]>;
- // ST(0) = ST(0) + [mem64]
-def FpMUL32m : FpI<(ops RFP:$dst, RFP:$src1, f32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fmul RFP:$src1,
- (extloadf64f32 addr:$src2)))]>;
- // ST(0) = ST(0) * [mem32]
-def FpMUL64m : FpI<(ops RFP:$dst, RFP:$src1, f64mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fmul RFP:$src1, (loadf64 addr:$src2)))]>;
- // ST(0) = ST(0) * [mem64]
-def FpSUB32m : FpI<(ops RFP:$dst, RFP:$src1, f32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub RFP:$src1,
- (extloadf64f32 addr:$src2)))]>;
- // ST(0) = ST(0) - [mem32]
-def FpSUB64m : FpI<(ops RFP:$dst, RFP:$src1, f64mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub RFP:$src1, (loadf64 addr:$src2)))]>;
- // ST(0) = ST(0) - [mem64]
-def FpSUBR32m : FpI<(ops RFP:$dst, RFP:$src1, f32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub (extloadf64f32 addr:$src2),
- RFP:$src1))]>;
- // ST(0) = [mem32] - ST(0)
-def FpSUBR64m : FpI<(ops RFP:$dst, RFP:$src1, f64mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub (loadf64 addr:$src2), RFP:$src1))]>;
- // ST(0) = [mem64] - ST(0)
-def FpDIV32m : FpI<(ops RFP:$dst, RFP:$src1, f32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv RFP:$src1,
- (extloadf64f32 addr:$src2)))]>;
- // ST(0) = ST(0) / [mem32]
-def FpDIV64m : FpI<(ops RFP:$dst, RFP:$src1, f64mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv RFP:$src1, (loadf64 addr:$src2)))]>;
- // ST(0) = ST(0) / [mem64]
-def FpDIVR32m : FpI<(ops RFP:$dst, RFP:$src1, f32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv (extloadf64f32 addr:$src2),
- RFP:$src1))]>;
- // ST(0) = [mem32] / ST(0)
-def FpDIVR64m : FpI<(ops RFP:$dst, RFP:$src1, f64mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv (loadf64 addr:$src2), RFP:$src1))]>;
- // ST(0) = [mem64] / ST(0)
-
-
-def FADD32m : FPI<0xD8, MRM0m, (ops f32mem:$src), "fadd{s} $src">;
-def FADD64m : FPI<0xDC, MRM0m, (ops f64mem:$src), "fadd{l} $src">;
-def FMUL32m : FPI<0xD8, MRM1m, (ops f32mem:$src), "fmul{s} $src">;
-def FMUL64m : FPI<0xDC, MRM1m, (ops f64mem:$src), "fmul{l} $src">;
-def FSUB32m : FPI<0xD8, MRM4m, (ops f32mem:$src), "fsub{s} $src">;
-def FSUB64m : FPI<0xDC, MRM4m, (ops f64mem:$src), "fsub{l} $src">;
-def FSUBR32m : FPI<0xD8, MRM5m, (ops f32mem:$src), "fsubr{s} $src">;
-def FSUBR64m : FPI<0xDC, MRM5m, (ops f64mem:$src), "fsubr{l} $src">;
-def FDIV32m : FPI<0xD8, MRM6m, (ops f32mem:$src), "fdiv{s} $src">;
-def FDIV64m : FPI<0xDC, MRM6m, (ops f64mem:$src), "fdiv{l} $src">;
-def FDIVR32m : FPI<0xD8, MRM7m, (ops f32mem:$src), "fdivr{s} $src">;
-def FDIVR64m : FPI<0xDC, MRM7m, (ops f64mem:$src), "fdivr{l} $src">;
-
-def FpIADD16m : FpI<(ops RFP:$dst, RFP:$src1, i16mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fadd RFP:$src1,
- (X86fild addr:$src2, i16)))]>;
- // ST(0) = ST(0) + [mem16int]
-def FpIADD32m : FpI<(ops RFP:$dst, RFP:$src1, i32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fadd RFP:$src1,
- (X86fild addr:$src2, i32)))]>;
- // ST(0) = ST(0) + [mem32int]
-def FpIMUL16m : FpI<(ops RFP:$dst, RFP:$src1, i16mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fmul RFP:$src1,
- (X86fild addr:$src2, i16)))]>;
- // ST(0) = ST(0) * [mem16int]
-def FpIMUL32m : FpI<(ops RFP:$dst, RFP:$src1, i32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fmul RFP:$src1,
- (X86fild addr:$src2, i32)))]>;
- // ST(0) = ST(0) * [mem32int]
-def FpISUB16m : FpI<(ops RFP:$dst, RFP:$src1, i16mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub RFP:$src1,
- (X86fild addr:$src2, i16)))]>;
- // ST(0) = ST(0) - [mem16int]
-def FpISUB32m : FpI<(ops RFP:$dst, RFP:$src1, i32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub RFP:$src1,
- (X86fild addr:$src2, i32)))]>;
- // ST(0) = ST(0) - [mem32int]
-def FpISUBR16m : FpI<(ops RFP:$dst, RFP:$src1, i16mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub (X86fild addr:$src2, i16),
- RFP:$src1))]>;
- // ST(0) = [mem16int] - ST(0)
-def FpISUBR32m : FpI<(ops RFP:$dst, RFP:$src1, i32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fsub (X86fild addr:$src2, i32),
- RFP:$src1))]>;
- // ST(0) = [mem32int] - ST(0)
-def FpIDIV16m : FpI<(ops RFP:$dst, RFP:$src1, i16mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv RFP:$src1,
- (X86fild addr:$src2, i16)))]>;
- // ST(0) = ST(0) / [mem16int]
-def FpIDIV32m : FpI<(ops RFP:$dst, RFP:$src1, i32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv RFP:$src1,
- (X86fild addr:$src2, i32)))]>;
- // ST(0) = ST(0) / [mem32int]
-def FpIDIVR16m : FpI<(ops RFP:$dst, RFP:$src1, i16mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv (X86fild addr:$src2, i16),
- RFP:$src1))]>;
- // ST(0) = [mem16int] / ST(0)
-def FpIDIVR32m : FpI<(ops RFP:$dst, RFP:$src1, i32mem:$src2), OneArgFPRW,
- [(set RFP:$dst, (fdiv (X86fild addr:$src2, i32),
- RFP:$src1))]>;
- // ST(0) = [mem32int] / ST(0)
-
-def FIADD16m : FPI<0xDE, MRM0m, (ops i16mem:$src), "fiadd{s} $src">;
-def FIADD32m : FPI<0xDA, MRM0m, (ops i32mem:$src), "fiadd{l} $src">;
-def FIMUL16m : FPI<0xDE, MRM1m, (ops i16mem:$src), "fimul{s} $src">;
-def FIMUL32m : FPI<0xDA, MRM1m, (ops i32mem:$src), "fimul{l} $src">;
-def FISUB16m : FPI<0xDE, MRM4m, (ops i16mem:$src), "fisub{s} $src">;
-def FISUB32m : FPI<0xDA, MRM4m, (ops i32mem:$src), "fisub{l} $src">;
-def FISUBR16m : FPI<0xDE, MRM5m, (ops i16mem:$src), "fisubr{s} $src">;
-def FISUBR32m : FPI<0xDA, MRM5m, (ops i32mem:$src), "fisubr{l} $src">;
-def FIDIV16m : FPI<0xDE, MRM6m, (ops i16mem:$src), "fidiv{s} $src">;
-def FIDIV32m : FPI<0xDA, MRM6m, (ops i32mem:$src), "fidiv{l} $src">;
-def FIDIVR16m : FPI<0xDE, MRM7m, (ops i16mem:$src), "fidivr{s} $src">;
-def FIDIVR32m : FPI<0xDA, MRM7m, (ops i32mem:$src), "fidivr{l} $src">;
-
-// NOTE: GAS and apparently all other AT&T style assemblers have a broken notion
-// of some of the 'reverse' forms of the fsub and fdiv instructions. As such,
-// we have to put some 'r's in and take them out of weird places.
-def FADDST0r : FPST0rInst <0xC0, "fadd $op">;
-def FADDrST0 : FPrST0Inst <0xC0, "fadd {%st(0), $op|$op, %ST(0)}">;
-def FADDPrST0 : FPrST0PInst<0xC0, "faddp $op">;
-def FSUBRST0r : FPST0rInst <0xE8, "fsubr $op">;
-def FSUBrST0 : FPrST0Inst <0xE8, "fsub{r} {%st(0), $op|$op, %ST(0)}">;
-def FSUBPrST0 : FPrST0PInst<0xE8, "fsub{r}p $op">;
-def FSUBST0r : FPST0rInst <0xE0, "fsub $op">;
-def FSUBRrST0 : FPrST0Inst <0xE0, "fsub{|r} {%st(0), $op|$op, %ST(0)}">;
-def FSUBRPrST0 : FPrST0PInst<0xE0, "fsub{|r}p $op">;
-def FMULST0r : FPST0rInst <0xC8, "fmul $op">;
-def FMULrST0 : FPrST0Inst <0xC8, "fmul {%st(0), $op|$op, %ST(0)}">;
-def FMULPrST0 : FPrST0PInst<0xC8, "fmulp $op">;
-def FDIVRST0r : FPST0rInst <0xF8, "fdivr $op">;
-def FDIVrST0 : FPrST0Inst <0xF8, "fdiv{r} {%st(0), $op|$op, %ST(0)}">;
-def FDIVPrST0 : FPrST0PInst<0xF8, "fdiv{r}p $op">;
-def FDIVST0r : FPST0rInst <0xF0, "fdiv $op">;
-def FDIVRrST0 : FPrST0Inst <0xF0, "fdiv{|r} {%st(0), $op|$op, %ST(0)}">;
-def FDIVRPrST0 : FPrST0PInst<0xF0, "fdiv{|r}p $op">;
-
-
-// Unary operations.
-def FpCHS : FpI<(ops RFP:$dst, RFP:$src), OneArgFPRW,
- [(set RFP:$dst, (fneg RFP:$src))]>;
-def FpABS : FpI<(ops RFP:$dst, RFP:$src), OneArgFPRW,
- [(set RFP:$dst, (fabs RFP:$src))]>;
-def FpSQRT : FpI<(ops RFP:$dst, RFP:$src), OneArgFPRW,
- [(set RFP:$dst, (fsqrt RFP:$src))]>;
-def FpSIN : FpI<(ops RFP:$dst, RFP:$src), OneArgFPRW,
- [(set RFP:$dst, (fsin RFP:$src))]>;
-def FpCOS : FpI<(ops RFP:$dst, RFP:$src), OneArgFPRW,
- [(set RFP:$dst, (fcos RFP:$src))]>;
-def FpTST : FpI<(ops RFP:$src), OneArgFP,
- []>;
-
-def FCHS : FPI<0xE0, RawFrm, (ops), "fchs">, D9;
-def FABS : FPI<0xE1, RawFrm, (ops), "fabs">, D9;
-def FSQRT : FPI<0xFA, RawFrm, (ops), "fsqrt">, D9;
-def FSIN : FPI<0xFE, RawFrm, (ops), "fsin">, D9;
-def FCOS : FPI<0xFF, RawFrm, (ops), "fcos">, D9;
-def FTST : FPI<0xE4, RawFrm, (ops), "ftst">, D9;
-
-
-// Floating point cmovs.
-let isTwoAddress = 1 in {
- def FpCMOVB : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_B))]>;
- def FpCMOVBE : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_BE))]>;
- def FpCMOVE : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_E))]>;
- def FpCMOVP : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_P))]>;
- def FpCMOVNB : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_AE))]>;
- def FpCMOVNBE: FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_A))]>;
- def FpCMOVNE : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_NE))]>;
- def FpCMOVNP : FpI<(ops RFP:$dst, RFP:$src1, RFP:$src2), CondMovFP,
- [(set RFP:$dst, (X86cmov RFP:$src1, RFP:$src2,
- X86_COND_NP))]>;
-}
-
-def FCMOVB : FPI<0xC0, AddRegFrm, (ops RST:$op),
- "fcmovb {$op, %st(0)|%ST(0), $op}">, DA;
-def FCMOVBE : FPI<0xD0, AddRegFrm, (ops RST:$op),
- "fcmovbe {$op, %st(0)|%ST(0), $op}">, DA;
-def FCMOVE : FPI<0xC8, AddRegFrm, (ops RST:$op),
- "fcmove {$op, %st(0)|%ST(0), $op}">, DA;
-def FCMOVP : FPI<0xD8, AddRegFrm, (ops RST:$op),
- "fcmovu {$op, %st(0)|%ST(0), $op}">, DA;
-def FCMOVNB : FPI<0xC0, AddRegFrm, (ops RST:$op),
- "fcmovnb {$op, %st(0)|%ST(0), $op}">, DB;
-def FCMOVNBE : FPI<0xD0, AddRegFrm, (ops RST:$op),
- "fcmovnbe {$op, %st(0)|%ST(0), $op}">, DB;
-def FCMOVNE : FPI<0xC8, AddRegFrm, (ops RST:$op),
- "fcmovne {$op, %st(0)|%ST(0), $op}">, DB;
-def FCMOVNP : FPI<0xD8, AddRegFrm, (ops RST:$op),
- "fcmovnu {$op, %st(0)|%ST(0), $op}">, DB;
-
-// Floating point loads & stores.
-def FpLD32m : FpI<(ops RFP:$dst, f32mem:$src), ZeroArgFP,
- [(set RFP:$dst, (extloadf64f32 addr:$src))]>;
-def FpLD64m : FpI<(ops RFP:$dst, f64mem:$src), ZeroArgFP,
- [(set RFP:$dst, (loadf64 addr:$src))]>;
-def FpILD16m : FpI<(ops RFP:$dst, i16mem:$src), ZeroArgFP,
- [(set RFP:$dst, (X86fild addr:$src, i16))]>;
-def FpILD32m : FpI<(ops RFP:$dst, i32mem:$src), ZeroArgFP,
- [(set RFP:$dst, (X86fild addr:$src, i32))]>;
-def FpILD64m : FpI<(ops RFP:$dst, i64mem:$src), ZeroArgFP,
- [(set RFP:$dst, (X86fild addr:$src, i64))]>;
-
-def FpST32m : FpI<(ops f32mem:$op, RFP:$src), OneArgFP,
- [(truncstore RFP:$src, addr:$op, f32)]>;
-def FpST64m : FpI<(ops f64mem:$op, RFP:$src), OneArgFP,
- [(store RFP:$src, addr:$op)]>;
-
-def FpSTP32m : FpI<(ops f32mem:$op, RFP:$src), OneArgFP, []>;
-def FpSTP64m : FpI<(ops f64mem:$op, RFP:$src), OneArgFP, []>;
-def FpIST16m : FpI<(ops i16mem:$op, RFP:$src), OneArgFP, []>;
-def FpIST32m : FpI<(ops i32mem:$op, RFP:$src), OneArgFP, []>;
-def FpIST64m : FpI<(ops i64mem:$op, RFP:$src), OneArgFP, []>;
-
-def FLD32m : FPI<0xD9, MRM0m, (ops f32mem:$src), "fld{s} $src">;
-def FLD64m : FPI<0xDD, MRM0m, (ops f64mem:$src), "fld{l} $src">;
-def FILD16m : FPI<0xDF, MRM0m, (ops i16mem:$src), "fild{s} $src">;
-def FILD32m : FPI<0xDB, MRM0m, (ops i32mem:$src), "fild{l} $src">;
-def FILD64m : FPI<0xDF, MRM5m, (ops i64mem:$src), "fild{ll} $src">;
-def FST32m : FPI<0xD9, MRM2m, (ops f32mem:$dst), "fst{s} $dst">;
-def FST64m : FPI<0xDD, MRM2m, (ops f64mem:$dst), "fst{l} $dst">;
-def FSTP32m : FPI<0xD9, MRM3m, (ops f32mem:$dst), "fstp{s} $dst">;
-def FSTP64m : FPI<0xDD, MRM3m, (ops f64mem:$dst), "fstp{l} $dst">;
-def FIST16m : FPI<0xDF, MRM2m, (ops i16mem:$dst), "fist{s} $dst">;
-def FIST32m : FPI<0xDB, MRM2m, (ops i32mem:$dst), "fist{l} $dst">;
-def FISTP16m : FPI<0xDF, MRM3m, (ops i16mem:$dst), "fistp{s} $dst">;
-def FISTP32m : FPI<0xDB, MRM3m, (ops i32mem:$dst), "fistp{l} $dst">;
-def FISTP64m : FPI<0xDF, MRM7m, (ops i64mem:$dst), "fistp{ll} $dst">;
-
-// FP Stack manipulation instructions.
-def FLDrr : FPI<0xC0, AddRegFrm, (ops RST:$op), "fld $op">, D9;
-def FSTrr : FPI<0xD0, AddRegFrm, (ops RST:$op), "fst $op">, DD;
-def FSTPrr : FPI<0xD8, AddRegFrm, (ops RST:$op), "fstp $op">, DD;
-def FXCH : FPI<0xC8, AddRegFrm, (ops RST:$op), "fxch $op">, D9;
-
-// Floating point constant loads.
-def FpLD0 : FpI<(ops RFP:$dst), ZeroArgFP,
- [(set RFP:$dst, fp64imm0)]>;
-def FpLD1 : FpI<(ops RFP:$dst), ZeroArgFP,
- [(set RFP:$dst, fp64imm1)]>;
-
-def FLD0 : FPI<0xEE, RawFrm, (ops), "fldz">, D9;
-def FLD1 : FPI<0xE8, RawFrm, (ops), "fld1">, D9;
-
-
-// Floating point compares.
-def FpUCOMr : FpI<(ops RFP:$lhs, RFP:$rhs), CompareFP,
- []>; // FPSW = cmp ST(0) with ST(i)
-def FpUCOMIr : FpI<(ops RFP:$lhs, RFP:$rhs), CompareFP,
- [(X86cmp RFP:$lhs, RFP:$rhs)]>; // CC = cmp ST(0) with ST(i)
-
-def FUCOMr : FPI<0xE0, AddRegFrm, // FPSW = cmp ST(0) with ST(i)
- (ops RST:$reg),
- "fucom $reg">, DD, Imp<[ST0],[]>;
-def FUCOMPr : FPI<0xE8, AddRegFrm, // FPSW = cmp ST(0) with ST(i), pop
- (ops RST:$reg),
- "fucomp $reg">, DD, Imp<[ST0],[]>;
-def FUCOMPPr : FPI<0xE9, RawFrm, // cmp ST(0) with ST(1), pop, pop
- (ops),
- "fucompp">, DA, Imp<[ST0],[]>;
-
-def FUCOMIr : FPI<0xE8, AddRegFrm, // CC = cmp ST(0) with ST(i)
- (ops RST:$reg),
- "fucomi {$reg, %st(0)|%ST(0), $reg}">, DB, Imp<[ST0],[]>;
-def FUCOMIPr : FPI<0xE8, AddRegFrm, // CC = cmp ST(0) with ST(i), pop
- (ops RST:$reg),
- "fucomip {$reg, %st(0)|%ST(0), $reg}">, DF, Imp<[ST0],[]>;
-
-
-// Floating point flag ops.
-def FNSTSW8r : I<0xE0, RawFrm, // AX = fp flags
- (ops), "fnstsw", []>, DF, Imp<[],[AX]>;
-
-def FNSTCW16m : I<0xD9, MRM7m, // [mem16] = X87 control world
- (ops i16mem:$dst), "fnstcw $dst", []>;
-def FLDCW16m : I<0xD9, MRM5m, // X87 control world = [mem16]
- (ops i16mem:$dst), "fldcw $dst", []>;
-