obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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.

1 files changed, 21 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/mayalias-1.c b/gcc/testsuite/gcc.c-torture/execute/mayalias-1.c
new file mode 100644
index 000000000..ba461cae1
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/mayalias-1.c
@@ -0,0 +1,21 @@
+/* Tests that the may_alias attribute works as expected.
+   Author: Osku Salerma <osku@iki.fi> Apr 2002.  */
+ 
+extern void abort(void);
+extern void exit(int);
+
+typedef short __attribute__((__may_alias__)) short_a;
+
+int
+main (void)
+{
+  int a = 0x12345678;
+  short_a *b = (short_a*) &a;
+
+  b[1] = 0;
+
+  if (a == 0x12345678)
+    abort();
+
+  exit(0);
+}