From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 gcc/testsuite/objc.dg/conditional-1.m | 45 +++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 gcc/testsuite/objc.dg/conditional-1.m

(limited to 'gcc/testsuite/objc.dg/conditional-1.m')

diff --git a/gcc/testsuite/objc.dg/conditional-1.m b/gcc/testsuite/objc.dg/conditional-1.m
new file mode 100644
index 000000000..0aad62c55
--- /dev/null
+++ b/gcc/testsuite/objc.dg/conditional-1.m
@@ -0,0 +1,45 @@
+/* Testing conditional warnings (without headers).  */
+/* Author: David Ayers */
+
+/* { dg-do compile } */
+
+#define nil ((id)0)
+@interface MyObject
+@end
+
+@protocol MyProtocol
+@end
+
+@interface MyProtoObject <MyProtocol>
+@end
+
+
+int
+main (int argc, char *argv[])
+{
+  id var_id = nil;
+  id <MyProtocol> var_id_p = nil;
+  MyObject *var_obj = nil;
+  MyProtoObject *var_obj_p = nil;
+
+  var_id = (var_id == var_obj) ? var_id : var_obj;
+  var_id = (var_id == var_obj) ? var_id : var_obj_p;
+
+  /* Ayers: Currently, the following test case passes for
+     technically the wrong reason (see below).
+  */
+  var_obj_p = (var_id == var_obj) ? var_obj_p : var_obj; /* { dg-warning "distinct Objective-C types" } */
+  var_obj_p = (var_id == var_obj) ? var_obj_p : var_id_p;
+
+  /* Ayers: The first of the following test cases
+     should probably warn for var_obj_p = var_obj,
+     yet that would require extensive changes to
+     build_conditional_expr to create a tree with
+     multiple types that the assignment would have
+     to evaluate both versions for correct diagnostics.
+  */
+  var_obj_p = (var_id == var_obj) ? var_id : var_obj;  
+  var_obj_p = (var_id == var_obj) ? var_id : var_obj_p;
+
+  return 0;
+}
-- 
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