From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Fri, 25 Mar 2022 10:23:22 +0000 (+0000)
Subject: [AsmPrinter] AIXException::endFunction - use cast<> instead of dyn_cast<> to avoid... 
X-Git-Tag: upstream/15.0.7~12347
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ae95f291e8d92bb7396219839efc0012a13378e1;p=platform%2Fupstream%2Fllvm.git

[AsmPrinter] AIXException::endFunction - use cast<> instead of dyn_cast<> to avoid dereference of nullptr

The pointer is used immediately inside the getSymbol() call, so assert the cast is correct instead of returning nullptr
---

diff --git a/llvm/lib/CodeGen/AsmPrinter/AIXException.cpp b/llvm/lib/CodeGen/AsmPrinter/AIXException.cpp
index 5d06670..f179c0a 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AIXException.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AIXException.cpp
@@ -73,8 +73,8 @@ void AIXException::endFunction(const MachineFunction *MF) {
   const Function &F = MF->getFunction();
   assert(F.hasPersonalityFn() &&
          "Landingpads are presented, but no personality routine is found.");
-  const GlobalValue *Per =
-      dyn_cast<GlobalValue>(F.getPersonalityFn()->stripPointerCasts());
+  const auto *Per =
+      cast<GlobalValue>(F.getPersonalityFn()->stripPointerCasts());
   const MCSymbol *PerSym = Asm->TM.getSymbol(Per);
 
   emitExceptionInfoTable(LSDALabel, PerSym);