1 files changed, 1 insertions, 1 deletions

diff --git a/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index 3b305ae766e8..3611b8ebe562 100644
--- a/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -744,7 +744,7 @@ bool MemCpyOpt::processMemMove(MemMoveInst *M) {
   const Type *ArgTys[3] = { M->getRawDest()->getType(),
                             M->getRawSource()->getType(),
                             M->getLength()->getType() };
-  M->setOperand(0,Intrinsic::getDeclaration(Mod, Intrinsic::memcpy, ArgTys, 3));
+  M->setCalledFunction(Intrinsic::getDeclaration(Mod, Intrinsic::memcpy, ArgTys, 3));
 
   // MemDep may have over conservative information about this instruction, just
   // conservatively flush it from the cache.