diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 28e2eec0b4..bf57119486 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -2854,7 +2854,8 @@ Instruction *InstCombiner::visitAllocationInst(AllocationInst &AI) { // If alloca'ing a zero byte object, replace the alloca with a null pointer. // Note that we only do this for alloca's, because malloc should allocate and // return a unique pointer, even for a zero byte allocation. - if (isa<AllocaInst>(AI) && TD->getTypeSize(AI.getAllocatedType()) == 0) + if (isa<AllocaInst>(AI) && AI.getAllocatedType()->isSized() && + TD->getTypeSize(AI.getAllocatedType()) == 0) return ReplaceInstUsesWith(AI, Constant::getNullValue(AI.getType())); return 0; |