diff options
Diffstat (limited to 'lib/Target/X86/X86ISelSimple.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelSimple.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp index b39396854d..48546aa54f 100644 --- a/lib/Target/X86/X86ISelSimple.cpp +++ b/lib/Target/X86/X86ISelSimple.cpp @@ -3074,7 +3074,11 @@ void X86ISel::emitShiftOperation(MachineBasicBlock *MBB, } else { BuildMI(*MBB, IP, isSigned ? X86::SAR32ri : X86::SHR32ri, 2, DestReg).addReg(SrcReg+1).addImm(Amount); - BuildMI(*MBB, IP, X86::MOV32ri, 1, DestReg+1).addImm(0); + if (isSigned) + BuildMI(*MBB, IP, X86::SAR32ri, 2, + DestReg+1).addReg(SrcReg+1).addImm(31); + else + BuildMI(*MBB, IP, X86::MOV32ri, 1, DestReg+1).addImm(0); } } } else { |