From 6ed3a762fcce2b4ac8f232cd61dd07ee807b2a59 Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Fri, 27 Mar 2015 23:00:49 +0000
Subject: [PATCH] DebugInfo: Require non-null in DIBuilder::retainType()

Assert that a non-null value is being passed in.  Note that I fixed the
one offender in clang in r233443.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233445 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/IR/DIBuilder.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/IR/DIBuilder.cpp b/lib/IR/DIBuilder.cpp
index ec5ee7da5cb..4b837af9d44 100644
--- a/lib/IR/DIBuilder.cpp
+++ b/lib/IR/DIBuilder.cpp
@@ -509,7 +509,10 @@ DIType DIBuilder::createObjectPointerType(DIType Ty) {
   return createTypeWithFlags(VMContext, Ty, Flags);
 }
 
-void DIBuilder::retainType(DIType T) { AllRetainTypes.emplace_back(T); }
+void DIBuilder::retainType(DIType T) {
+  assert(T.get() && "Expected non-null type");
+  AllRetainTypes.emplace_back(T);
+}
 
 DIBasicType DIBuilder::createUnspecifiedParameter() {
   return DIBasicType();