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, 60 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr44468.c b/gcc/testsuite/gcc.c-torture/execute/pr44468.c
new file mode 100644
index 000000000..c4bd49265
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr44468.c
@@ -0,0 +1,60 @@
+#include <stddef.h>
+
+struct S {
+  int i;
+  int j;
+};
+struct R {
+  int k;
+  struct S a;
+};
+struct Q {
+  float k;
+  struct S a;
+};
+struct Q s;
+int __attribute__((noinline,noclone))
+test1 (void *q)
+{
+  struct S *b = (struct S *)((char *)q + sizeof (int));
+  s.a.i = 0;
+  b->i = 3;
+  return s.a.i;
+}
+int __attribute__((noinline,noclone))
+test2 (void *q)
+{
+  struct S *b = &((struct R *)q)->a;
+  s.a.i = 0;
+  b->i = 3;
+  return s.a.i;
+}
+int __attribute__((noinline,noclone))
+test3 (void *q)
+{
+  s.a.i = 0;
+  ((struct S *)((char *)q + sizeof (int)))->i = 3;
+  return s.a.i;
+}
+extern void abort (void);
+int
+main()
+{
+  if (sizeof (float) != sizeof (int)
+      || offsetof (struct R, a) != sizeof (int)
+      || offsetof (struct Q, a) != sizeof (int))
+    return 0;
+  s.a.i = 1;
+  s.a.j = 2;
+  if (test1 ((void *)&s) != 3)
+    abort ();
+  s.a.i = 1;
+  s.a.j = 2;
+  if (test2 ((void *)&s) != 3)
+    abort ();
+  s.a.i = 1;
+  s.a.j = 2;
+  if (test3 ((void *)&s) != 3)
+    abort ();
+  return 0;
+}