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-rw-r--r--lib/Analysis/ValueTracking.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp
index 3c4e6bc..39a91df 100644
--- a/lib/Analysis/ValueTracking.cpp
+++ b/lib/Analysis/ValueTracking.cpp
@@ -1004,6 +1004,7 @@ bool llvm::GetConstantStringInfo(Value *V, std::string &Str) {
// Traverse the constant array from StartIdx (derived above) which is
// the place the GEP refers to in the array.
+ Str.reserve(NumElts);
for (unsigned i = StartIdx; i < NumElts; ++i) {
Constant *Elt = Array->getOperand(i);
ConstantInt *CI = dyn_cast<ConstantInt>(Elt);