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Add missing check 

llvm-svn: 17706
This commit is contained in:
Chris Lattner 2004-11-13 20:04:38 +00:00
parent 8d521bb16e
commit ef6bd92a8c
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/Target/X86/X86ISelSimple.cpp
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@ -2925,7 +2925,7 @@ void X86ISel::emitShiftOperation(MachineBasicBlock *MBB,
// //
if (ConstantUInt *CUI = dyn_cast<ConstantUInt>(ShiftAmount)) { if (ConstantUInt *CUI = dyn_cast<ConstantUInt>(ShiftAmount)) {
unsigned Amount = CUI->getValue(); unsigned Amount = CUI->getValue();
if (Amount == 1) { // X << 1 == X+X if (Amount == 1 && isLeftShift) { // X << 1 == X+X
BuildMI(*MBB, IP, X86::ADD32rr, 2, BuildMI(*MBB, IP, X86::ADD32rr, 2,
DestReg).addReg(SrcReg).addReg(SrcReg); DestReg).addReg(SrcReg).addReg(SrcReg);
BuildMI(*MBB, IP, X86::ADC32rr, 2, BuildMI(*MBB, IP, X86::ADC32rr, 2,