From e57d88c6a376c4d2badec4cdee1ef74d6a40a60e Mon Sep 17 00:00:00 2001
From: Ted Kremenek <kremenek@apple.com>
Date: Tue, 1 Feb 2011 20:45:26 +0000
Subject: [PATCH] Add test case for dead stores checker to not flag dead
 assignments to 'self' within a nested assignment.

llvm-svn: 124681
---
 clang/test/Analysis/dead-stores.m | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/clang/test/Analysis/dead-stores.m b/clang/test/Analysis/dead-stores.m
index 730b8266bd10..852e63afcda9 100644
--- a/clang/test/Analysis/dead-stores.m
+++ b/clang/test/Analysis/dead-stores.m
@@ -59,3 +59,20 @@ void foo_rdar8527823();
  }
 }
 @end
+
+// Don't flag dead stores to assignments to self within a nested assignment.
+@interface Rdar7947686
+- (id) init;
+@end
+
+@interface Rdar7947686_B : Rdar7947686
+- (id) init;
+@end
+
+@implementation Rdar7947686_B
+- (id) init {
+  id x = (self = [super init]); // no-warning
+  return x;
+}
+@end
+