isa+cast -> dyncast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47320 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index 62039f9..738c4ea 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1220,8 +1220,8 @@
if (dep == MemoryDependenceAnalysis::None ||
dep == MemoryDependenceAnalysis::NonLocal)
return false;
- if (isa<MemCpyInst>(dep))
- return processMemCpy(M, cast<MemCpyInst>(dep), toErase);
+ if (MemCpyInst *MemCpy = dyn_cast<MemCpyInst>(dep))
+ return processMemCpy(M, MemCpy, toErase);
if (CallInst* C = dyn_cast<CallInst>(dep))
return performReturnSlotOptzn(M, C, toErase);
return false;