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, 34 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/compile/20070905-1.c b/gcc/testsuite/gcc.c-torture/compile/20070905-1.c
new file mode 100644
index 000000000..5953275b1
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20070905-1.c
@@ -0,0 +1,34 @@
+/* PR tree-optimization/32772 */
+
+struct S
+{
+  unsigned long bits[1];
+};
+
+void f1 (int, unsigned long *);
+int f2 (void);
+int f3 (int, unsigned long *);
+int f4 (int, unsigned long *);
+
+static inline __attribute__ ((always_inline))
+void baz (int x, volatile struct S *y)
+{
+  f1 (x, y->bits);
+}
+
+static int
+bar (int x, struct S *y)
+{
+  int n;
+  if (__builtin_constant_p (x) ? f3 (x, y->bits) : f4 (x, y->bits))
+    baz (x, y);
+  for (n = f2 (); n < 8; n = f2 ())
+    f3 (n, y->bits);
+}
+
+void
+foo (int x, int y)
+{
+  struct S m;
+  while ((y = bar (x, &m)) >= 0);
+}