From f3f325b82fdeeb055225d98d9076214108d35f39 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 28 Apr 2010 20:16:12 +0000
Subject: fix PR6112 - When globalopt (or any other pass) does RAUW(@G, %G),
 metadata references in non-function-local MDNodes should drop to null.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102519 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/GlobalOpt/metadata.ll | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 test/Transforms/GlobalOpt/metadata.ll

(limited to 'test/Transforms')

diff --git a/test/Transforms/GlobalOpt/metadata.ll b/test/Transforms/GlobalOpt/metadata.ll
new file mode 100644
index 0000000..55b2ff9
--- /dev/null
+++ b/test/Transforms/GlobalOpt/metadata.ll
@@ -0,0 +1,19 @@
+; RUN: opt -S -globalopt metadata.ll | FileCheck %s
+
+; PR6112 - When globalopt does RAUW(@G, %G), the metadata reference should drop
+; to null.
+@G = internal global i8** null
+
+define i32 @main(i32 %argc, i8** %argv) {
+; CHECK: @main
+; CHECK: %G = alloca
+  store i8** %argv, i8*** @G
+  ret i32 0
+}
+
+!named = !{!0}
+
+; CHECK: !0 = metadata !{null}
+!0 = metadata !{i8*** @G}
+
+
-- 
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