Don't crash when mangling types defined in ObjC class extensions.

The original test case here was mangling a type name for TBAA,
but we can provoke this in C++11 easily enough.

rdar://13434937

llvm-svn: 179153

1 files changed, 25 insertions, 1 deletions

diff --git a/clang/test/CodeGenObjCXX/mangle.mm b/clang/test/CodeGenObjCXX/mangle.mm
index 2521c6076a8..45a93a196dc 100644
--- a/clang/test/CodeGenObjCXX/mangle.mm
+++ b/clang/test/CodeGenObjCXX/mangle.mm
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
+// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -std=c++11 -emit-llvm -o - | FileCheck %s
 
 // CHECK: @"_ZZ11+[A shared]E1a" = internal global
 // CHECK: @"_ZZ11-[A(Foo) f]E1a" = internal global
@@ -54,3 +54,27 @@
   uiIsVisible();
 }
 @end
+
+// rdar://13434937
+//
+// Don't crash when mangling an enum whose semantic context
+// is a class extension (which looks anonymous in the AST).
+// The other tests here are just for coverage.
+@interface Test2 @end
+@interface Test2 ()
+@property (assign) enum { T2x, T2y, T2z } axis;
+@end
+@interface Test2 (a)
+@property (assign) enum { T2i, T2j, T2k } dimension;
+@end
+@implementation Test2 {
+@public
+  enum { T2a, T2b, T2c } alt_axis;
+}
+@end
+template <class T> struct Test2Template { Test2Template() {} }; // must have a member that we'll instantiate and mangle
+void test2(Test2 *t) {
+  Test2Template<decltype(t.axis)> t0;
+  Test2Template<decltype(t.dimension)> t1;
+  Test2Template<decltype(t->alt_axis)> t2;
+}