From 57fc9798d7145626809b0e81af9154a755b383eb Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Thu, 17 Feb 2022 13:18:02 +0000
Subject: [PATCH] [clang] CGDebugInfo::getOrCreateMethodType - use castAs<>
 instead of getAs<> to avoid dereference of nullptr

The pointer is always dereferenced, so assert the cast is correct instead of returning nullptr
---
 clang/lib/CodeGen/CGDebugInfo.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index c09adad09aa8..d75b5a1a9d12 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -1725,7 +1725,7 @@ void CGDebugInfo::CollectRecordFields(
 llvm::DISubroutineType *
 CGDebugInfo::getOrCreateMethodType(const CXXMethodDecl *Method,
                                    llvm::DIFile *Unit, bool decl) {
-  const FunctionProtoType *Func = Method->getType()->getAs<FunctionProtoType>();
+  const auto *Func = Method->getType()->castAs<FunctionProtoType>();
   if (Method->isStatic())
     return cast_or_null<llvm::DISubroutineType>(
         getOrCreateType(QualType(Func, 0), Unit));