-//==- X86InstrFPStack.td - Describe the X86 Instruction Set -------*- C++ -*-=//
+//==- X86InstrFPStack.td - Describe the X86 Instruction Set --*- tablegen -*-=//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Evan Cheng and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// FPStack specific DAG Nodes.
//===----------------------------------------------------------------------===//
-def SDTX86FpGet : SDTypeProfile<1, 0, [SDTCisFP<0>]>;
-def SDTX86FpSet : SDTypeProfile<0, 1, [SDTCisFP<0>]>;
+def SDTX86FpGet2 : SDTypeProfile<2, 0, [SDTCisVT<0, f80>,
+ SDTCisVT<1, f80>]>;
def SDTX86Fld : SDTypeProfile<1, 2, [SDTCisFP<0>,
SDTCisPtrTy<1>,
SDTCisVT<2, OtherVT>]>;
SDTCisVT<2, OtherVT>]>;
def SDTX86FpToIMem : SDTypeProfile<0, 2, [SDTCisFP<0>, SDTCisPtrTy<1>]>;
-def X86fpget : SDNode<"X86ISD::FP_GET_RESULT", SDTX86FpGet,
- [SDNPHasChain, SDNPInFlag, SDNPOutFlag]>;
-def X86fpset : SDNode<"X86ISD::FP_SET_RESULT", SDTX86FpSet,
- [SDNPHasChain, SDNPOutFlag]>;
-def X86fld : SDNode<"X86ISD::FLD", SDTX86Fld,
- [SDNPHasChain]>;
-def X86fst : SDNode<"X86ISD::FST", SDTX86Fst,
- [SDNPHasChain, SDNPInFlag]>;
-def X86fild : SDNode<"X86ISD::FILD", SDTX86Fild,
- [SDNPHasChain]>;
-def X86fildflag : SDNode<"X86ISD::FILD_FLAG",SDTX86Fild,
- [SDNPHasChain, SDNPOutFlag]>;
+def SDTX86CwdStore : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
+
+def X86fld : SDNode<"X86ISD::FLD", SDTX86Fld,
+ [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
+def X86fst : SDNode<"X86ISD::FST", SDTX86Fst,
+ [SDNPHasChain, SDNPInGlue, SDNPMayStore,
+ SDNPMemOperand]>;
+def X86fild : SDNode<"X86ISD::FILD", SDTX86Fild,
+ [SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
+def X86fildflag : SDNode<"X86ISD::FILD_FLAG", SDTX86Fild,
+ [SDNPHasChain, SDNPOutGlue, SDNPMayLoad,
+ SDNPMemOperand]>;
def X86fp_to_i16mem : SDNode<"X86ISD::FP_TO_INT16_IN_MEM", SDTX86FpToIMem,
- [SDNPHasChain]>;
+ [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
def X86fp_to_i32mem : SDNode<"X86ISD::FP_TO_INT32_IN_MEM", SDTX86FpToIMem,
- [SDNPHasChain]>;
+ [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
def X86fp_to_i64mem : SDNode<"X86ISD::FP_TO_INT64_IN_MEM", SDTX86FpToIMem,
- [SDNPHasChain]>;
+ [SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
+def X86fp_cwd_get16 : SDNode<"X86ISD::FNSTCW16m", SDTX86CwdStore,
+ [SDNPHasChain, SDNPMayStore, SDNPSideEffect,
+ SDNPMemOperand]>;
//===----------------------------------------------------------------------===//
// FPStack pattern fragments
}]>;
// Some 'special' instructions
-let usesCustomDAGSchedInserter = 1 in { // Expanded by the scheduler.
- def FP32_TO_INT16_IN_MEM : I<0, Pseudo,
- (outs), (ins i16mem:$dst, RFP32:$src),
- "#FP32_TO_INT16_IN_MEM PSEUDO!",
+let usesCustomInserter = 1 in { // Expanded after instruction selection.
+ def FP32_TO_INT16_IN_MEM : PseudoI<(outs), (ins i16mem:$dst, RFP32:$src),
[(X86fp_to_i16mem RFP32:$src, addr:$dst)]>;
- def FP32_TO_INT32_IN_MEM : I<0, Pseudo,
- (outs), (ins i32mem:$dst, RFP32:$src),
- "#FP32_TO_INT32_IN_MEM PSEUDO!",
+ def FP32_TO_INT32_IN_MEM : PseudoI<(outs), (ins i32mem:$dst, RFP32:$src),
[(X86fp_to_i32mem RFP32:$src, addr:$dst)]>;
- def FP32_TO_INT64_IN_MEM : I<0, Pseudo,
- (outs), (ins i64mem:$dst, RFP32:$src),
- "#FP32_TO_INT64_IN_MEM PSEUDO!",
+ def FP32_TO_INT64_IN_MEM : PseudoI<(outs), (ins i64mem:$dst, RFP32:$src),
[(X86fp_to_i64mem RFP32:$src, addr:$dst)]>;
- def FP64_TO_INT16_IN_MEM : I<0, Pseudo,
- (outs), (ins i16mem:$dst, RFP64:$src),
- "#FP64_TO_INT16_IN_MEM PSEUDO!",
+ def FP64_TO_INT16_IN_MEM : PseudoI<(outs), (ins i16mem:$dst, RFP64:$src),
[(X86fp_to_i16mem RFP64:$src, addr:$dst)]>;
- def FP64_TO_INT32_IN_MEM : I<0, Pseudo,
- (outs), (ins i32mem:$dst, RFP64:$src),
- "#FP64_TO_INT32_IN_MEM PSEUDO!",
+ def FP64_TO_INT32_IN_MEM : PseudoI<(outs), (ins i32mem:$dst, RFP64:$src),
[(X86fp_to_i32mem RFP64:$src, addr:$dst)]>;
- def FP64_TO_INT64_IN_MEM : I<0, Pseudo,
- (outs), (ins i64mem:$dst, RFP64:$src),
- "#FP64_TO_INT64_IN_MEM PSEUDO!",
+ def FP64_TO_INT64_IN_MEM : PseudoI<(outs), (ins i64mem:$dst, RFP64:$src),
[(X86fp_to_i64mem RFP64:$src, addr:$dst)]>;
- def FP80_TO_INT16_IN_MEM : I<0, Pseudo,
- (outs), (ins i16mem:$dst, RFP80:$src),
- "#FP80_TO_INT16_IN_MEM PSEUDO!",
+ def FP80_TO_INT16_IN_MEM : PseudoI<(outs), (ins i16mem:$dst, RFP80:$src),
[(X86fp_to_i16mem RFP80:$src, addr:$dst)]>;
- def FP80_TO_INT32_IN_MEM : I<0, Pseudo,
- (outs), (ins i32mem:$dst, RFP80:$src),
- "#FP80_TO_INT32_IN_MEM PSEUDO!",
+ def FP80_TO_INT32_IN_MEM : PseudoI<(outs), (ins i32mem:$dst, RFP80:$src),
[(X86fp_to_i32mem RFP80:$src, addr:$dst)]>;
- def FP80_TO_INT64_IN_MEM : I<0, Pseudo,
- (outs), (ins i64mem:$dst, RFP80:$src),
- "#FP80_TO_INT64_IN_MEM PSEUDO!",
+ def FP80_TO_INT64_IN_MEM : PseudoI<(outs), (ins i64mem:$dst, RFP80:$src),
[(X86fp_to_i64mem RFP80:$src, addr:$dst)]>;
}
-let isTerminator = 1 in
- let Defs = [FP0, FP1, FP2, FP3, FP4, FP5, FP6] in
- def FP_REG_KILL : I<0, Pseudo, (outs), (ins), "#FP_REG_KILL", []>;
-
// All FP Stack operations are represented with four instructions here. The
// first three instructions, generated by the instruction selector, use "RFP32"
// "RFP64" or "RFP80" registers: traditional register files to reference 32-bit,
// a pattern) and the FPI instruction should have emission info (e.g. opcode
// encoding and asm printing info).
-// Pseudo Instructions for FP stack return values.
-def FpGETRESULT32 : FpI_<(outs RFP32:$dst), (ins), SpecialFP,
- [(set RFP32:$dst, X86fpget)]>; // FPR = ST(0)
-
-def FpGETRESULT64 : FpI_<(outs RFP64:$dst), (ins), SpecialFP,
- [(set RFP64:$dst, X86fpget)]>; // FPR = ST(0)
-
-def FpGETRESULT80 : FpI_<(outs RFP80:$dst), (ins), SpecialFP,
- [(set RFP80:$dst, X86fpget)]>; // FPR = ST(0)
-
-let Defs = [ST0] in {
-def FpSETRESULT32 : FpI_<(outs), (ins RFP32:$src), SpecialFP,
- [(X86fpset RFP32:$src)]>;// ST(0) = FPR
-
-def FpSETRESULT64 : FpI_<(outs), (ins RFP64:$src), SpecialFP,
- [(X86fpset RFP64:$src)]>;// ST(0) = FPR
+// Pseudo Instruction for FP stack return values.
+def FpPOP_RETVAL : FpI_<(outs RFP80:$dst), (ins), SpecialFP, []>;
-def FpSETRESULT80 : FpI_<(outs), (ins RFP80:$src), SpecialFP,
- [(X86fpset RFP80:$src)]>;// ST(0) = FPR
-}
-
-// FpIf32, FpIf64 - Floating Point Psuedo Instruction template.
+// FpIf32, FpIf64 - Floating Point Pseudo Instruction template.
// f32 instructions can use SSE1 and are predicated on FPStackf32 == !SSE1.
// f64 instructions can use SSE2 and are predicated on FPStackf64 == !SSE2.
// f80 instructions cannot use SSE and use neither of these.
class FpIf64<dag outs, dag ins, FPFormat fp, list<dag> pattern> :
FpI_<outs, ins, fp, pattern>, Requires<[FPStackf64]>;
-// Register copies. Just copies, the shortening ones do not truncate.
-def MOV_Fp3232 : FpIf32<(outs RFP32:$dst), (ins RFP32:$src), SpecialFP, []>;
-def MOV_Fp3264 : FpIf32<(outs RFP64:$dst), (ins RFP32:$src), SpecialFP, []>;
-def MOV_Fp6432 : FpIf32<(outs RFP32:$dst), (ins RFP64:$src), SpecialFP, []>;
-def MOV_Fp6464 : FpIf64<(outs RFP64:$dst), (ins RFP64:$src), SpecialFP, []>;
-def MOV_Fp8032 : FpIf32<(outs RFP32:$dst), (ins RFP80:$src), SpecialFP, []>;
-def MOV_Fp3280 : FpIf32<(outs RFP80:$dst), (ins RFP32:$src), SpecialFP, []>;
-def MOV_Fp8064 : FpIf64<(outs RFP64:$dst), (ins RFP80:$src), SpecialFP, []>;
-def MOV_Fp6480 : FpIf64<(outs RFP80:$dst), (ins RFP64:$src), SpecialFP, []>;
-def MOV_Fp8080 : FpI_<(outs RFP80:$dst), (ins RFP80:$src), SpecialFP, []>;
-
// Factoring for arithmetic.
multiclass FPBinary_rr<SDNode OpNode> {
// Register op register -> register
// These instructions cannot address 80-bit memory.
multiclass FPBinary<SDNode OpNode, Format fp, string asmstring> {
// ST(0) = ST(0) + [mem]
-def _Fp32m : FpIf32<(outs RFP32:$dst), (ins RFP32:$src1, f32mem:$src2), OneArgFPRW,
+def _Fp32m : FpIf32<(outs RFP32:$dst),
+ (ins RFP32:$src1, f32mem:$src2), OneArgFPRW,
[(set RFP32:$dst,
(OpNode RFP32:$src1, (loadf32 addr:$src2)))]>;
-def _Fp64m : FpIf64<(outs RFP64:$dst), (ins RFP64:$src1, f64mem:$src2), OneArgFPRW,
+def _Fp64m : FpIf64<(outs RFP64:$dst),
+ (ins RFP64:$src1, f64mem:$src2), OneArgFPRW,
[(set RFP64:$dst,
(OpNode RFP64:$src1, (loadf64 addr:$src2)))]>;
-def _Fp64m32: FpIf64<(outs RFP64:$dst), (ins RFP64:$src1, f32mem:$src2), OneArgFPRW,
+def _Fp64m32: FpIf64<(outs RFP64:$dst),
+ (ins RFP64:$src1, f32mem:$src2), OneArgFPRW,
[(set RFP64:$dst,
(OpNode RFP64:$src1, (f64 (extloadf32 addr:$src2))))]>;
-def _Fp80m32: FpI_<(outs RFP80:$dst), (ins RFP80:$src1, f32mem:$src2), OneArgFPRW,
+def _Fp80m32: FpI_<(outs RFP80:$dst),
+ (ins RFP80:$src1, f32mem:$src2), OneArgFPRW,
[(set RFP80:$dst,
(OpNode RFP80:$src1, (f80 (extloadf32 addr:$src2))))]>;
-def _Fp80m64: FpI_<(outs RFP80:$dst), (ins RFP80:$src1, f64mem:$src2), OneArgFPRW,
+def _Fp80m64: FpI_<(outs RFP80:$dst),
+ (ins RFP80:$src1, f64mem:$src2), OneArgFPRW,
[(set RFP80:$dst,
(OpNode RFP80:$src1, (f80 (extloadf64 addr:$src2))))]>;
def _F32m : FPI<0xD8, fp, (outs), (ins f32mem:$src),
- !strconcat("f", !strconcat(asmstring, "{s}\t$src"))>;
+ !strconcat("f", asmstring, "{s}\t$src")> {
+ let mayLoad = 1;
+}
def _F64m : FPI<0xDC, fp, (outs), (ins f64mem:$src),
- !strconcat("f", !strconcat(asmstring, "{l}\t$src"))>;
+ !strconcat("f", asmstring, "{l}\t$src")> {
+ let mayLoad = 1;
+}
// ST(0) = ST(0) + [memint]
-def _FpI16m32 : FpIf32<(outs RFP32:$dst), (ins RFP32:$src1, i16mem:$src2), OneArgFPRW,
+def _FpI16m32 : FpIf32<(outs RFP32:$dst), (ins RFP32:$src1, i16mem:$src2),
+ OneArgFPRW,
[(set RFP32:$dst, (OpNode RFP32:$src1,
(X86fild addr:$src2, i16)))]>;
-def _FpI32m32 : FpIf32<(outs RFP32:$dst), (ins RFP32:$src1, i32mem:$src2), OneArgFPRW,
+def _FpI32m32 : FpIf32<(outs RFP32:$dst), (ins RFP32:$src1, i32mem:$src2),
+ OneArgFPRW,
[(set RFP32:$dst, (OpNode RFP32:$src1,
(X86fild addr:$src2, i32)))]>;
-def _FpI16m64 : FpIf64<(outs RFP64:$dst), (ins RFP64:$src1, i16mem:$src2), OneArgFPRW,
+def _FpI16m64 : FpIf64<(outs RFP64:$dst), (ins RFP64:$src1, i16mem:$src2),
+ OneArgFPRW,
[(set RFP64:$dst, (OpNode RFP64:$src1,
(X86fild addr:$src2, i16)))]>;
-def _FpI32m64 : FpIf64<(outs RFP64:$dst), (ins RFP64:$src1, i32mem:$src2), OneArgFPRW,
+def _FpI32m64 : FpIf64<(outs RFP64:$dst), (ins RFP64:$src1, i32mem:$src2),
+ OneArgFPRW,
[(set RFP64:$dst, (OpNode RFP64:$src1,
(X86fild addr:$src2, i32)))]>;
-def _FpI16m80 : FpI_<(outs RFP80:$dst), (ins RFP80:$src1, i16mem:$src2), OneArgFPRW,
+def _FpI16m80 : FpI_<(outs RFP80:$dst), (ins RFP80:$src1, i16mem:$src2),
+ OneArgFPRW,
[(set RFP80:$dst, (OpNode RFP80:$src1,
(X86fild addr:$src2, i16)))]>;
-def _FpI32m80 : FpI_<(outs RFP80:$dst), (ins RFP80:$src1, i32mem:$src2), OneArgFPRW,
+def _FpI32m80 : FpI_<(outs RFP80:$dst), (ins RFP80:$src1, i32mem:$src2),
+ OneArgFPRW,
[(set RFP80:$dst, (OpNode RFP80:$src1,
(X86fild addr:$src2, i32)))]>;
def _FI16m : FPI<0xDE, fp, (outs), (ins i16mem:$src),
- !strconcat("fi", !strconcat(asmstring, "{s}\t$src"))>;
+ !strconcat("fi", asmstring, "{s}\t$src")> {
+ let mayLoad = 1;
+}
def _FI32m : FPI<0xDA, fp, (outs), (ins i32mem:$src),
- !strconcat("fi", !strconcat(asmstring, "{l}\t$src"))>;
+ !strconcat("fi", asmstring, "{l}\t$src")> {
+ let mayLoad = 1;
+}
}
defm ADD : FPBinary_rr<fadd>;
def DIVR_FrST0 : FPrST0Inst <0xF0, "fdiv{|r}\t{%st(0), $op|$op, %ST(0)}">;
def DIVR_FPrST0 : FPrST0PInst<0xF0, "fdiv{|r}p\t$op">;
+def COM_FST0r : FPST0rInst <0xD0, "fcom\t$op">;
+def COMP_FST0r : FPST0rInst <0xD8, "fcomp\t$op">;
+
// Unary operations.
multiclass FPUnary<SDNode OpNode, bits<8> opcode, string asmstring> {
def _Fp32 : FpIf32<(outs RFP32:$dst), (ins RFP32:$src), OneArgFPRW,
defm SIN : FPUnary<fsin, 0xFE, "fsin">;
defm COS : FPUnary<fcos, 0xFF, "fcos">;
-def TST_Fp32 : FpIf32<(outs), (ins RFP32:$src), OneArgFP,
- []>;
-def TST_Fp64 : FpIf64<(outs), (ins RFP64:$src), OneArgFP,
- []>;
-def TST_Fp80 : FpI_<(outs), (ins RFP80:$src), OneArgFP,
- []>;
+let neverHasSideEffects = 1 in {
+def TST_Fp32 : FpIf32<(outs), (ins RFP32:$src), OneArgFP, []>;
+def TST_Fp64 : FpIf64<(outs), (ins RFP64:$src), OneArgFP, []>;
+def TST_Fp80 : FpI_<(outs), (ins RFP80:$src), OneArgFP, []>;
+}
def TST_F : FPI<0xE4, RawFrm, (outs), (ins), "ftst">, D9;
+// Versions of FP instructions that take a single memory operand. Added for the
+// disassembler; remove as they are included with patterns elsewhere.
+def FCOM32m : FPI<0xD8, MRM2m, (outs), (ins f32mem:$src), "fcom{s}\t$src">;
+def FCOMP32m : FPI<0xD8, MRM3m, (outs), (ins f32mem:$src), "fcomp{s}\t$src">;
+
+def FLDENVm : FPI<0xD9, MRM4m, (outs), (ins f32mem:$src), "fldenv\t$src">;
+def FSTENVm : FPI<0xD9, MRM6m, (outs f32mem:$dst), (ins), "fnstenv\t$dst">;
+
+def FICOM32m : FPI<0xDA, MRM2m, (outs), (ins i32mem:$src), "ficom{l}\t$src">;
+def FICOMP32m: FPI<0xDA, MRM3m, (outs), (ins i32mem:$src), "ficomp{l}\t$src">;
+
+def FCOM64m : FPI<0xDC, MRM2m, (outs), (ins f64mem:$src), "fcom{l}\t$src">;
+def FCOMP64m : FPI<0xDC, MRM3m, (outs), (ins f64mem:$src), "fcomp{l}\t$src">;
+
+def FRSTORm : FPI<0xDD, MRM4m, (outs f32mem:$dst), (ins), "frstor\t$dst">;
+def FSAVEm : FPI<0xDD, MRM6m, (outs f32mem:$dst), (ins), "fnsave\t$dst">;
+def FNSTSWm : FPI<0xDD, MRM7m, (outs f32mem:$dst), (ins), "fnstsw\t$dst">;
+
+def FICOM16m : FPI<0xDE, MRM2m, (outs), (ins i16mem:$src), "ficom{s}\t$src">;
+def FICOMP16m: FPI<0xDE, MRM3m, (outs), (ins i16mem:$src), "ficomp{s}\t$src">;
+
+def FBLDm : FPI<0xDF, MRM4m, (outs), (ins f32mem:$src), "fbld\t$src">;
+def FBSTPm : FPI<0xDF, MRM6m, (outs f32mem:$dst), (ins), "fbstp\t$dst">;
+
// Floating point cmovs.
+class FpIf32CMov<dag outs, dag ins, FPFormat fp, list<dag> pattern> :
+ FpI_<outs, ins, fp, pattern>, Requires<[FPStackf32, HasCMov]>;
+class FpIf64CMov<dag outs, dag ins, FPFormat fp, list<dag> pattern> :
+ FpI_<outs, ins, fp, pattern>, Requires<[FPStackf64, HasCMov]>;
+
multiclass FPCMov<PatLeaf cc> {
- def _Fp32 : FpIf32<(outs RFP32:$dst), (ins RFP32:$src1, RFP32:$src2),
+ def _Fp32 : FpIf32CMov<(outs RFP32:$dst), (ins RFP32:$src1, RFP32:$src2),
CondMovFP,
[(set RFP32:$dst, (X86cmov RFP32:$src1, RFP32:$src2,
cc, EFLAGS))]>;
- def _Fp64 : FpIf64<(outs RFP64:$dst), (ins RFP64:$src1, RFP64:$src2),
+ def _Fp64 : FpIf64CMov<(outs RFP64:$dst), (ins RFP64:$src1, RFP64:$src2),
CondMovFP,
[(set RFP64:$dst, (X86cmov RFP64:$src1, RFP64:$src2,
cc, EFLAGS))]>;
def _Fp80 : FpI_<(outs RFP80:$dst), (ins RFP80:$src1, RFP80:$src2),
CondMovFP,
[(set RFP80:$dst, (X86cmov RFP80:$src1, RFP80:$src2,
- cc, EFLAGS))]>;
+ cc, EFLAGS))]>,
+ Requires<[HasCMov]>;
}
-let Uses = [EFLAGS], isTwoAddress = 1 in {
+
+let Uses = [EFLAGS], Constraints = "$src1 = $dst" in {
defm CMOVB : FPCMov<X86_COND_B>;
defm CMOVBE : FPCMov<X86_COND_BE>;
defm CMOVE : FPCMov<X86_COND_E>;
defm CMOVNBE: FPCMov<X86_COND_A>;
defm CMOVNE : FPCMov<X86_COND_NE>;
defm CMOVNP : FPCMov<X86_COND_NP>;
-}
+} // Uses = [EFLAGS], Constraints = "$src1 = $dst"
+let Predicates = [HasCMov] in {
// These are not factored because there's no clean way to pass DA/DB.
def CMOVB_F : FPI<0xC0, AddRegFrm, (outs RST:$op), (ins),
"fcmovb\t{$op, %st(0)|%ST(0), $op}">, DA;
"fcmovne\t{$op, %st(0)|%ST(0), $op}">, DB;
def CMOVNP_F : FPI<0xD8, AddRegFrm, (outs RST:$op), (ins),
"fcmovnu\t{$op, %st(0)|%ST(0), $op}">, DB;
+} // Predicates = [HasCMov]
// Floating point loads & stores.
-let isLoad = 1 in {
+let canFoldAsLoad = 1 in {
def LD_Fp32m : FpIf32<(outs RFP32:$dst), (ins f32mem:$src), ZeroArgFP,
[(set RFP32:$dst, (loadf32 addr:$src))]>;
-def LD_Fp64m : FpIf64<(outs RFP64:$dst), (ins f64mem:$src), ZeroArgFP,
+let isReMaterializable = 1 in
+ def LD_Fp64m : FpIf64<(outs RFP64:$dst), (ins f64mem:$src), ZeroArgFP,
[(set RFP64:$dst, (loadf64 addr:$src))]>;
def LD_Fp80m : FpI_<(outs RFP80:$dst), (ins f80mem:$src), ZeroArgFP,
[(set RFP80:$dst, (loadf80 addr:$src))]>;
[(truncstoref64 RFP80:$src, addr:$op)]>;
// FST does not support 80-bit memory target; FSTP must be used.
+let mayStore = 1, neverHasSideEffects = 1 in {
def ST_FpP32m : FpIf32<(outs), (ins f32mem:$op, RFP32:$src), OneArgFP, []>;
def ST_FpP64m32 : FpIf64<(outs), (ins f32mem:$op, RFP64:$src), OneArgFP, []>;
def ST_FpP64m : FpIf64<(outs), (ins f64mem:$op, RFP64:$src), OneArgFP, []>;
def ST_FpP80m32 : FpI_<(outs), (ins f32mem:$op, RFP80:$src), OneArgFP, []>;
def ST_FpP80m64 : FpI_<(outs), (ins f64mem:$op, RFP80:$src), OneArgFP, []>;
+}
def ST_FpP80m : FpI_<(outs), (ins f80mem:$op, RFP80:$src), OneArgFP,
[(store RFP80:$src, addr:$op)]>;
+let mayStore = 1, neverHasSideEffects = 1 in {
def IST_Fp16m32 : FpIf32<(outs), (ins i16mem:$op, RFP32:$src), OneArgFP, []>;
def IST_Fp32m32 : FpIf32<(outs), (ins i32mem:$op, RFP32:$src), OneArgFP, []>;
def IST_Fp64m32 : FpIf32<(outs), (ins i64mem:$op, RFP32:$src), OneArgFP, []>;
def IST_Fp16m80 : FpI_<(outs), (ins i16mem:$op, RFP80:$src), OneArgFP, []>;
def IST_Fp32m80 : FpI_<(outs), (ins i32mem:$op, RFP80:$src), OneArgFP, []>;
def IST_Fp64m80 : FpI_<(outs), (ins i64mem:$op, RFP80:$src), OneArgFP, []>;
+}
+let mayLoad = 1 in {
def LD_F32m : FPI<0xD9, MRM0m, (outs), (ins f32mem:$src), "fld{s}\t$src">;
def LD_F64m : FPI<0xDD, MRM0m, (outs), (ins f64mem:$src), "fld{l}\t$src">;
def LD_F80m : FPI<0xDB, MRM5m, (outs), (ins f80mem:$src), "fld{t}\t$src">;
def ILD_F16m : FPI<0xDF, MRM0m, (outs), (ins i16mem:$src), "fild{s}\t$src">;
def ILD_F32m : FPI<0xDB, MRM0m, (outs), (ins i32mem:$src), "fild{l}\t$src">;
def ILD_F64m : FPI<0xDF, MRM5m, (outs), (ins i64mem:$src), "fild{ll}\t$src">;
+}
+let mayStore = 1 in {
def ST_F32m : FPI<0xD9, MRM2m, (outs), (ins f32mem:$dst), "fst{s}\t$dst">;
def ST_F64m : FPI<0xDD, MRM2m, (outs), (ins f64mem:$dst), "fst{l}\t$dst">;
def ST_FP32m : FPI<0xD9, MRM3m, (outs), (ins f32mem:$dst), "fstp{s}\t$dst">;
def IST_FP16m : FPI<0xDF, MRM3m, (outs), (ins i16mem:$dst), "fistp{s}\t$dst">;
def IST_FP32m : FPI<0xDB, MRM3m, (outs), (ins i32mem:$dst), "fistp{l}\t$dst">;
def IST_FP64m : FPI<0xDF, MRM7m, (outs), (ins i64mem:$dst), "fistp{ll}\t$dst">;
+}
// FISTTP requires SSE3 even though it's a FPStack op.
def ISTT_Fp16m32 : FpI_<(outs), (ins i16mem:$op, RFP32:$src), OneArgFP,
[(X86fp_to_i64mem RFP80:$src, addr:$op)]>,
Requires<[HasSSE3]>;
+let mayStore = 1 in {
def ISTT_FP16m : FPI<0xDF, MRM1m, (outs), (ins i16mem:$dst), "fisttp{s}\t$dst">;
def ISTT_FP32m : FPI<0xDB, MRM1m, (outs), (ins i32mem:$dst), "fisttp{l}\t$dst">;
-def ISTT_FP64m : FPI<0xDD, MRM1m, (outs), (ins i64mem:$dst), "fisttp{ll}\t$dst">;
+def ISTT_FP64m : FPI<0xDD, MRM1m, (outs), (ins i64mem:$dst),
+ "fisttp{ll}\t$dst">;
+}
// FP Stack manipulation instructions.
def LD_Frr : FPI<0xC0, AddRegFrm, (outs), (ins RST:$op), "fld\t$op">, D9;
// Floating point compares.
let Defs = [EFLAGS] in {
def UCOM_Fpr32 : FpIf32<(outs), (ins RFP32:$lhs, RFP32:$rhs), CompareFP,
- []>; // FPSW = cmp ST(0) with ST(i)
-def UCOM_FpIr32: FpIf32<(outs), (ins RFP32:$lhs, RFP32:$rhs), CompareFP,
- [(X86cmp RFP32:$lhs, RFP32:$rhs),
- (implicit EFLAGS)]>; // CC = ST(0) cmp ST(i)
+ []>; // FPSW = cmp ST(0) with ST(i)
def UCOM_Fpr64 : FpIf64<(outs), (ins RFP64:$lhs, RFP64:$rhs), CompareFP,
- []>; // FPSW = cmp ST(0) with ST(i)
+ []>; // FPSW = cmp ST(0) with ST(i)
+def UCOM_Fpr80 : FpI_ <(outs), (ins RFP80:$lhs, RFP80:$rhs), CompareFP,
+ []>; // FPSW = cmp ST(0) with ST(i)
+
+// CC = ST(0) cmp ST(i)
+def UCOM_FpIr32: FpIf32<(outs), (ins RFP32:$lhs, RFP32:$rhs), CompareFP,
+ [(set EFLAGS, (X86cmp RFP32:$lhs, RFP32:$rhs))]>;
def UCOM_FpIr64: FpIf64<(outs), (ins RFP64:$lhs, RFP64:$rhs), CompareFP,
- [(X86cmp RFP64:$lhs, RFP64:$rhs),
- (implicit EFLAGS)]>; // CC = ST(0) cmp ST(i)
-def UCOM_Fpr80 : FpI_<(outs), (ins RFP80:$lhs, RFP80:$rhs), CompareFP,
- []>; // FPSW = cmp ST(0) with ST(i)
+ [(set EFLAGS, (X86cmp RFP64:$lhs, RFP64:$rhs))]>;
def UCOM_FpIr80: FpI_<(outs), (ins RFP80:$lhs, RFP80:$rhs), CompareFP,
- [(X86cmp RFP80:$lhs, RFP80:$rhs),
- (implicit EFLAGS)]>; // CC = ST(0) cmp ST(i)
+ [(set EFLAGS, (X86cmp RFP80:$lhs, RFP80:$rhs))]>;
}
let Defs = [EFLAGS], Uses = [ST0] in {
def UCOM_FIr : FPI<0xE8, AddRegFrm, // CC = cmp ST(0) with ST(i)
(outs), (ins RST:$reg),
- "fucomi\t{$reg, %st(0)|%ST(0), $reg}">, DB;
+ "fucomi\t$reg">, DB;
def UCOM_FIPr : FPI<0xE8, AddRegFrm, // CC = cmp ST(0) with ST(i), pop
(outs), (ins RST:$reg),
- "fucomip\t{$reg, %st(0)|%ST(0), $reg}">, DF;
+ "fucompi\t$reg">, DF;
}
+def COM_FIr : FPI<0xF0, AddRegFrm, (outs), (ins RST:$reg),
+ "fcomi\t$reg">, DB;
+def COM_FIPr : FPI<0xF0, AddRegFrm, (outs), (ins RST:$reg),
+ "fcompi\t$reg">, DF;
+
// Floating point flag ops.
let Defs = [AX] in
def FNSTSW8r : I<0xE0, RawFrm, // AX = fp flags
- (outs), (ins), "fnstsw", []>, DF;
+ (outs), (ins), "fnstsw %ax", []>, DF;
def FNSTCW16m : I<0xD9, MRM7m, // [mem16] = X87 control world
- (outs), (ins i16mem:$dst), "fnstcw\t$dst", []>;
+ (outs), (ins i16mem:$dst), "fnstcw\t$dst",
+ [(X86fp_cwd_get16 addr:$dst)]>;
+
+let mayLoad = 1 in
def FLDCW16m : I<0xD9, MRM5m, // X87 control world = [mem16]
(outs), (ins i16mem:$dst), "fldcw\t$dst", []>;
+// FPU control instructions
+def FNINIT : I<0xE3, RawFrm, (outs), (ins), "fninit", []>, DB;
+def FFREE : FPI<0xC0, AddRegFrm, (outs), (ins RST:$reg),
+ "ffree\t$reg">, DD;
+
+// Clear exceptions
+
+def FNCLEX : I<0xE2, RawFrm, (outs), (ins), "fnclex", []>, DB;
+
+// Operandless floating-point instructions for the disassembler.
+def WAIT : I<0x9B, RawFrm, (outs), (ins), "wait", []>;
+
+def FNOP : I<0xD0, RawFrm, (outs), (ins), "fnop", []>, D9;
+def FXAM : I<0xE5, RawFrm, (outs), (ins), "fxam", []>, D9;
+def FLDL2T : I<0xE9, RawFrm, (outs), (ins), "fldl2t", []>, D9;
+def FLDL2E : I<0xEA, RawFrm, (outs), (ins), "fldl2e", []>, D9;
+def FLDPI : I<0xEB, RawFrm, (outs), (ins), "fldpi", []>, D9;
+def FLDLG2 : I<0xEC, RawFrm, (outs), (ins), "fldlg2", []>, D9;
+def FLDLN2 : I<0xED, RawFrm, (outs), (ins), "fldln2", []>, D9;
+def F2XM1 : I<0xF0, RawFrm, (outs), (ins), "f2xm1", []>, D9;
+def FYL2X : I<0xF1, RawFrm, (outs), (ins), "fyl2x", []>, D9;
+def FPTAN : I<0xF2, RawFrm, (outs), (ins), "fptan", []>, D9;
+def FPATAN : I<0xF3, RawFrm, (outs), (ins), "fpatan", []>, D9;
+def FXTRACT : I<0xF4, RawFrm, (outs), (ins), "fxtract", []>, D9;
+def FPREM1 : I<0xF5, RawFrm, (outs), (ins), "fprem1", []>, D9;
+def FDECSTP : I<0xF6, RawFrm, (outs), (ins), "fdecstp", []>, D9;
+def FINCSTP : I<0xF7, RawFrm, (outs), (ins), "fincstp", []>, D9;
+def FPREM : I<0xF8, RawFrm, (outs), (ins), "fprem", []>, D9;
+def FYL2XP1 : I<0xF9, RawFrm, (outs), (ins), "fyl2xp1", []>, D9;
+def FSINCOS : I<0xFB, RawFrm, (outs), (ins), "fsincos", []>, D9;
+def FRNDINT : I<0xFC, RawFrm, (outs), (ins), "frndint", []>, D9;
+def FSCALE : I<0xFD, RawFrm, (outs), (ins), "fscale", []>, D9;
+def FCOMPP : I<0xD9, RawFrm, (outs), (ins), "fcompp", []>, DE;
+
+def FXSAVE : I<0xAE, MRM0m, (outs opaque512mem:$dst), (ins),
+ "fxsave\t$dst", []>, TB;
+def FXSAVE64 : I<0xAE, MRM0m, (outs opaque512mem:$dst), (ins),
+ "fxsaveq\t$dst", []>, TB, REX_W, Requires<[In64BitMode]>;
+def FXRSTOR : I<0xAE, MRM1m, (outs), (ins opaque512mem:$src),
+ "fxrstor\t$src", []>, TB;
+def FXRSTOR64 : I<0xAE, MRM1m, (outs), (ins opaque512mem:$src),
+ "fxrstorq\t$src", []>, TB, REX_W, Requires<[In64BitMode]>;
+
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//===----------------------------------------------------------------------===//
// Required for CALL which return f32 / f64 / f80 values.
def : Pat<(X86fst RFP32:$src, addr:$op, f32), (ST_Fp32m addr:$op, RFP32:$src)>;
-def : Pat<(X86fst RFP64:$src, addr:$op, f32), (ST_Fp64m32 addr:$op, RFP64:$src)>;
+def : Pat<(X86fst RFP64:$src, addr:$op, f32), (ST_Fp64m32 addr:$op,
+ RFP64:$src)>;
def : Pat<(X86fst RFP64:$src, addr:$op, f64), (ST_Fp64m addr:$op, RFP64:$src)>;
-def : Pat<(X86fst RFP80:$src, addr:$op, f32), (ST_Fp80m32 addr:$op, RFP80:$src)>;
-def : Pat<(X86fst RFP80:$src, addr:$op, f64), (ST_Fp80m64 addr:$op, RFP80:$src)>;
-def : Pat<(X86fst RFP80:$src, addr:$op, f80), (ST_FpP80m addr:$op, RFP80:$src)>;
+def : Pat<(X86fst RFP80:$src, addr:$op, f32), (ST_Fp80m32 addr:$op,
+ RFP80:$src)>;
+def : Pat<(X86fst RFP80:$src, addr:$op, f64), (ST_Fp80m64 addr:$op,
+ RFP80:$src)>;
+def : Pat<(X86fst RFP80:$src, addr:$op, f80), (ST_FpP80m addr:$op,
+ RFP80:$src)>;
// Floating point constant -0.0 and -1.0
def : Pat<(f32 fpimmneg0), (CHS_Fp32 (LD_Fp032))>, Requires<[FPStackf32]>;
// Used to conv. i64 to f64 since there isn't a SSE version.
def : Pat<(X86fildflag addr:$src, i64), (ILD_Fp64m64 addr:$src)>;
-def : Pat<(f64 (fextend RFP32:$src)), (MOV_Fp3264 RFP32:$src)>, Requires<[FPStackf32]>;
-def : Pat<(f80 (fextend RFP32:$src)), (MOV_Fp3280 RFP32:$src)>, Requires<[FPStackf32]>;
-def : Pat<(f80 (fextend RFP64:$src)), (MOV_Fp6480 RFP64:$src)>, Requires<[FPStackf64]>;
+// FP extensions map onto simple pseudo-value conversions if they are to/from
+// the FP stack.
+def : Pat<(f64 (fextend RFP32:$src)), (COPY_TO_REGCLASS RFP32:$src, RFP64)>,
+ Requires<[FPStackf32]>;
+def : Pat<(f80 (fextend RFP32:$src)), (COPY_TO_REGCLASS RFP32:$src, RFP80)>,
+ Requires<[FPStackf32]>;
+def : Pat<(f80 (fextend RFP64:$src)), (COPY_TO_REGCLASS RFP64:$src, RFP80)>,
+ Requires<[FPStackf64]>;
+
+// FP truncations map onto simple pseudo-value conversions if they are to/from
+// the FP stack. We have validated that only value-preserving truncations make
+// it through isel.
+def : Pat<(f32 (fround RFP64:$src)), (COPY_TO_REGCLASS RFP64:$src, RFP32)>,
+ Requires<[FPStackf32]>;
+def : Pat<(f32 (fround RFP80:$src)), (COPY_TO_REGCLASS RFP80:$src, RFP32)>,
+ Requires<[FPStackf32]>;
+def : Pat<(f64 (fround RFP80:$src)), (COPY_TO_REGCLASS RFP80:$src, RFP64)>,
+ Requires<[FPStackf64]>;
projects / oota-llvm.git / blobdiff