diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86ISelPattern.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/Target/X86/X86ISelPattern.cpp b/lib/Target/X86/X86ISelPattern.cpp index fcea635d47..ba3644341c 100644 --- a/lib/Target/X86/X86ISelPattern.cpp +++ b/lib/Target/X86/X86ISelPattern.cpp @@ -2699,8 +2699,13 @@ unsigned ISel::SelectExpr(SDOperand N) { } unsigned RegSize = MVT::getSizeInBits(N.getValueType()); Tmp1 = SelectExpr(N.getOperand(0)); - unsigned TmpReg = MakeReg(N.getValueType()); - BuildMI(BB, SAROpc, 2, TmpReg).addReg(Tmp1).addImm(Log-1); + unsigned TmpReg; + if (Log != 1) { + TmpReg = MakeReg(N.getValueType()); + BuildMI(BB, SAROpc, 2, TmpReg).addReg(Tmp1).addImm(Log-1); + } else { + TmpReg = Tmp1; + } unsigned TmpReg2 = MakeReg(N.getValueType()); BuildMI(BB, SHROpc, 2, TmpReg2).addReg(TmpReg).addImm(RegSize-Log); unsigned TmpReg3 = MakeReg(N.getValueType()); |