diff options
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineCalls.cpp')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombineCalls.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCalls.cpp b/lib/Transforms/InstCombine/InstCombineCalls.cpp index f92c4baeba..04b7b2146f 100644 --- a/lib/Transforms/InstCombine/InstCombineCalls.cpp +++ b/lib/Transforms/InstCombine/InstCombineCalls.cpp @@ -111,10 +111,13 @@ Instruction *InstCombiner::SimplifyMemTransfer(MemIntrinsic *MI) { // get the TBAA tag describing our copy. if (MDNode *M = MI->getMetadata(LLVMContext::MD_tbaa_struct)) { if (M->getNumOperands() == 3 && + M->getOperand(0) && isa<ConstantInt>(M->getOperand(0)) && cast<ConstantInt>(M->getOperand(0))->isNullValue() && + M->getOperand(1) && isa<ConstantInt>(M->getOperand(1)) && cast<ConstantInt>(M->getOperand(1))->getValue() == Size && + M->getOperand(2) && isa<MDNode>(M->getOperand(2))) CopyMD = cast<MDNode>(M->getOperand(2)); } |