From aee15e8513e3f34128fadcc90f397c27af694c10 Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Tue, 10 Feb 2015 01:32:56 +0000
Subject: [PATCH] Verifier: Add simple checks for MDLocation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228647 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/IR/Verifier.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/IR/Verifier.cpp b/lib/IR/Verifier.cpp
index e1b6f944f8a..ab3a2735df3 100644
--- a/lib/IR/Verifier.cpp
+++ b/lib/IR/Verifier.cpp
@@ -678,7 +678,13 @@ void Verifier::visitMetadataAsValue(const MetadataAsValue &MDV, Function *F) {
     visitValueAsMetadata(*V, F);
 }
 
-void Verifier::visitMDLocation(const MDLocation &) {}
+void Verifier::visitMDLocation(const MDLocation &N) {
+  Assert1(N.getScope(), "location requires a valid scope", &N);
+  if (N.getInlinedAt())
+    Assert2(isa<MDLocation>(N.getInlinedAt()),
+            "inlined-at should be a location", &N, N.getInlinedAt());
+}
+
 void Verifier::visitGenericDebugNode(const GenericDebugNode &) {}
 void Verifier::visitMDSubrange(const MDSubrange &) {}
 void Verifier::visitMDEnumerator(const MDEnumerator &) {}