diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index 4b0b9a5..eaf90d0 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -432,7 +432,7 @@
   // Instead of loading constant c string, use corresponding integer value
   // directly if string length is small enough.
   std::string Str;
-  if (TD && GetConstantStringInfo(CE->getOperand(0), Str) && !Str.empty()) {
+  if (TD && GetConstantStringInfo(CE, Str) && !Str.empty()) {
     unsigned StrLen = Str.length();
     const Type *Ty = cast<PointerType>(CE->getType())->getElementType();
     unsigned NumBits = Ty->getPrimitiveSizeInBits();