[PATCH] D113164: [NFC] Avoid nullptr dereference

[Freddy, Ye via Phabricator via llvm-commits]

FreddyYe created this revision.
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These warning are reported by static code analysis tool: Klocwork


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113164

Files:
  llvm/lib/CodeGen/TypePromotion.cpp


Index: llvm/lib/CodeGen/TypePromotion.cpp
===================================================================
--- llvm/lib/CodeGen/TypePromotion.cpp
+++ llvm/lib/CodeGen/TypePromotion.cpp
@@ -257,7 +257,8 @@
   if (auto *Store = dyn_cast<StoreInst>(V))
     return LessOrEqualTypeSize(Store->getValueOperand());
   if (auto *Return = dyn_cast<ReturnInst>(V))
-    return LessOrEqualTypeSize(Return->getReturnValue());
+    if (auto *Val = Return->getReturnValue())
+      return LessOrEqualTypeSize(Val);
   if (auto *ZExt = dyn_cast<ZExtInst>(V))
     return GreaterThanTypeSize(ZExt);
   if (auto *Switch = dyn_cast<SwitchInst>(V))


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