Fix miscompilation of MallocBench/espresso which code review pointed out

but apparently didn't make it into the final patch.

llvm-svn: 31070
This commit is contained in:
Chris Lattner 2006-10-20 18:20:21 +00:00
parent da5290e752
commit 38ed7d9e49

View File

@ -4913,7 +4913,7 @@ Instruction *InstCombiner::visitShiftInst(ShiftInst &I) {
// shr int -1, X = -1 (for any arithmetic shift rights of ~0)
if (!isLeftShift)
if (ConstantInt *CSI = dyn_cast<ConstantInt>(Op0))
if (CSI->isAllOnesValue())
if (CSI->isAllOnesValue() && Op0->getType()->isSigned())
return ReplaceInstUsesWith(I, CSI);
// Try to fold constant and into select arguments.