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/g++.dg/warn/Walways-true-1.C | 57 ++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/warn/Walways-true-1.C

(limited to 'gcc/testsuite/g++.dg/warn/Walways-true-1.C')

diff --git a/gcc/testsuite/g++.dg/warn/Walways-true-1.C b/gcc/testsuite/g++.dg/warn/Walways-true-1.C
new file mode 100644
index 000000000..ae6f9dc83
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Walways-true-1.C
@@ -0,0 +1,57 @@
+// Test -Waddress for testing an address against NULL.
+// Origin: Ian Lance Taylor <iant@google.com>
+
+// { dg-do compile }
+// { dg-options "-Waddress" }
+
+extern int foo (int);
+
+int i;
+
+void
+bar (int a)
+{
+ lab:
+  if (foo)	// { dg-warning "always evaluate as" "correct warning" }
+    foo (0);
+  if (foo (1))
+    ;
+  if (&i)	// { dg-warning "always evaluate as" "correct warning" }
+    foo (2);
+  if (i)
+    foo (3);
+  if (&a)	// { dg-warning "always evaluate as" "correct warning" }
+    foo (4);
+  if (a)
+    foo (5);
+  if (&&lab)	// { dg-warning "always evaluate as" "correct warning" }
+    foo (6);
+  if (foo == 0)	// { dg-warning "never be NULL" "correct warning" }
+    foo (7);
+  if (foo (1) == 0)
+    foo (8);
+  if (&i == 0)	// { dg-warning "never be NULL" "correct warning" }
+    foo (9);
+  if (i == 0)
+    foo (10);
+  if (&a == 0)	// { dg-warning "never be NULL" "correct warning" }
+    foo (11);
+  if (a == 0)
+    foo (12);
+  if (&&lab == 0) // { dg-warning "never be NULL" "correct warning" }
+    foo (13);
+  if (0 == foo)	// { dg-warning "never be NULL" "correct warning" }
+    foo (14);
+  if (0 == foo (1))
+    foo (15);
+  if (0 == &i)	// { dg-warning "never be NULL" "correct warning" }
+    foo (16);
+  if (0 == i)
+    foo (17);
+  if (0 == &a)	// { dg-warning "never be NULL" "correct warning" }
+    foo (18);
+  if (0 == a)
+    foo (19);
+  if (0 == &&lab) // { dg-warning "never be NULL" "correct warning" }
+    foo (20);
+}
-- 
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