Fix Bug: test/Regression/Transforms/InstCombine/2002-09-08-PointerShiftBug.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3626 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 785eb709aa4cb94b88433cd7e09eb7bc408b3d91..748969ab3b715310cf2f2ac2ba8458dc228c913b 100644 (file)
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -492,6 +492,7 @@ Instruction *InstCombiner::visitShiftInst(Instruction &I) {
   if (ConstantUInt *CUI = dyn_cast<ConstantUInt>(Op1)) {
     unsigned TypeBits = Op0->getType()->getPrimitiveSize()*8;
     if (CUI->getValue() >= TypeBits &&
+        TypeBits && // FIXME: Handle pointer operands here.  This should go away
         !(Op0->getType()->isSigned() && I.getOpcode() == Instruction::Shr))
       return ReplaceInstUsesWith(I, Constant::getNullValue(Op0->getType()));
   }