diff options
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index f07793b4d9..90408c8da3 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -455,7 +455,20 @@ X86TargetLowering::X86TargetLowering(TargetMachine &TM) addRegisterClass(MVT::f80, X86::RFP80RegisterClass); setOperationAction(ISD::UNDEF, MVT::f80, Expand); setOperationAction(ISD::FCOPYSIGN, MVT::f80, Expand); - setOperationAction(ISD::ConstantFP, MVT::f80, Expand); + { + setOperationAction(ISD::ConstantFP, MVT::f80, Expand); + APFloat TmpFlt(+0.0); + TmpFlt.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven); + addLegalFPImmediate(TmpFlt); // FLD0 + TmpFlt.changeSign(); + addLegalFPImmediate(TmpFlt); // FLD0/FCHS + APFloat TmpFlt2(+1.0); + TmpFlt2.convert(APFloat::x87DoubleExtended, APFloat::rmNearestTiesToEven); + addLegalFPImmediate(TmpFlt2); // FLD1 + TmpFlt2.changeSign(); + addLegalFPImmediate(TmpFlt2); // FLD1/FCHS + } + if (!UnsafeFPMath) { setOperationAction(ISD::FSIN , MVT::f80 , Expand); setOperationAction(ISD::FCOS , MVT::f80 , Expand); |