MemorySanitizer - silence static analyzer dyn_cast<> null dereference warnings. NFCI.

The static analyzer is warning about a potential null dereferences, but we should be able to use cast<> directly and if not assert will fire for us.

llvm-svn: 372960

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
index dd7b4fcbd0f..81bd2f3c18a 100644
--- a/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -3627,10 +3627,10 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
   int getNumOutputArgs(InlineAsm *IA, CallBase *CB) {
     int NumRetOutputs = 0;
     int NumOutputs = 0;
-    Type *RetTy = dyn_cast<Value>(CB)->getType();
+    Type *RetTy = cast<Value>(CB)->getType();
     if (!RetTy->isVoidTy()) {
       // Register outputs are returned via the CallInst return value.
-      StructType *ST = dyn_cast_or_null<StructType>(RetTy);
+      auto *ST = dyn_cast<StructType>(RetTy);
       if (ST)
         NumRetOutputs = ST->getNumElements();
       else
@@ -3667,7 +3667,7 @@ struct MemorySanitizerVisitor : public InstVisitor<MemorySanitizerVisitor> {
     // corresponding CallInst has nO+nI+1 operands (the last operand is the
     // function to be called).
     const DataLayout &DL = F.getParent()->getDataLayout();
-    CallBase *CB = dyn_cast<CallBase>(&I);
+    CallBase *CB = cast<CallBase>(&I);
     IRBuilder<> IRB(&I);
     InlineAsm *IA = cast<InlineAsm>(CB->getCalledValue());
     int OutputArgs = getNumOutputArgs(IA, CB);