diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 03471c7397..614202c2d5 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2158,6 +2158,17 @@ static unsigned CopyToFromAsymmetricReg(unsigned DestReg, unsigned SrcReg, return X86::MOV64toSDrr; } + // SrcReg(FR32) -> DestReg(GR32) + // SrcReg(GR32) -> DestReg(FR32) + + if (X86::GR32RegClass.contains(DestReg) && X86::FR32RegClass.contains(SrcReg)) + // Copy from a FR32 register to a GR32 register. + return HasAVX ? X86::VMOVSS2DIrr : X86::MOVSS2DIrr; + + if (X86::FR32RegClass.contains(DestReg) && X86::GR32RegClass.contains(SrcReg)) + // Copy from a GR32 register to a FR32 register. + return HasAVX ? X86::VMOVDI2SSrr : X86::MOVDI2SSrr; + return 0; } |