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, 64 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/20030826-2.c b/gcc/testsuite/gcc.dg/20030826-2.c
new file mode 100644
index 000000000..32db09195
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/20030826-2.c
@@ -0,0 +1,64 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer -march=i386" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+extern void abort (void);
+extern void exit (int);
+
+struct S
+{
+  int *a;
+  unsigned char *b, c;
+};
+
+int u, v, w;
+
+void
+foo (unsigned short x)
+{
+  u += x;
+}
+
+int
+bar (struct S **x, int *y)
+{
+  w += *y;
+  *y = w + 25;
+  return 0;
+}
+
+int
+baz (struct S **x)
+{
+  struct S *y = *x;
+  unsigned char *a = y->b;
+
+  foo (*a);
+
+  if (__builtin_expect (y->c != 0 || y->a == &v, 0))
+    return 1;
+
+  if (__builtin_expect (*a == 1, 0))
+    {
+      int a, b = bar (x, &a);
+
+      if (a)
+	return b;
+    }
+
+  return 0;
+}
+
+int
+main (void)
+{
+  struct S a, *b = &a;
+  unsigned char c;
+
+  __builtin_memset (b, 0, sizeof (a));
+  a.a = &v;
+  a.b = &c;
+  if (baz (&b) != 1)
+    abort ();
+  exit (0);
+}