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-rw-r--r--lib/Transforms/Scalar/MemCpyOptimizer.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index 087f022..5d867e7 100644
--- a/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -814,7 +814,8 @@ bool MemCpyOpt::processByValArgument(CallSite CS, unsigned ArgNo) {
// Find out what feeds this byval argument.
Value *ByValArg = CS.getArgument(ArgNo);
- uint64_t ByValSize = TD->getTypeAllocSize(ByValArg->getType());
+ const Type *ByValTy =cast<PointerType>(ByValArg->getType())->getElementType();
+ uint64_t ByValSize = TD->getTypeAllocSize(ByValTy);
MemDepResult DepInfo =
MD->getPointerDependencyFrom(AliasAnalysis::Location(ByValArg, ByValSize),
true, CS.getInstruction(),