Fix Transforms/GVN/memcpy.ll, which Chris broke in r47275 by reordering the branches...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47305 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index efe8254cd54a88cea9dee0d4dfcf133a3516b99a..e83376007276d362068df15ed23d79988080eebb 100644 (file)
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1121,7 +1121,8 @@ bool GVN::processMemCpy(MemCpyInst* M,
       dep == MemoryDependenceAnalysis::NonLocal)
     return false;
   else if (CallInst* C = dyn_cast<CallInst>(dep))
-    return performReturnSlotOptzn(M, C, toErase);
+    if (!isa<MemCpyInst>(C))
+      return performReturnSlotOptzn(M, C, toErase);
   else if (!isa<MemCpyInst>(dep))
     return false;