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, 42 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/compile/pr47428.c b/gcc/testsuite/gcc.c-torture/compile/pr47428.c
new file mode 100644
index 000000000..0c4ccc912
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr47428.c
@@ -0,0 +1,42 @@
+/* PR tree-optimization/47428 */
+
+struct S
+{
+  int s;
+} a;
+int b;
+
+void bar (struct S);
+
+int
+baz (int x __attribute__((unused)), int y)
+{
+  int i;
+  for (i = 0; i < 1; i = 1)
+    for (y = 0; y < 1; y = 1);
+  return y;
+}
+
+void
+foo (void)
+{
+  fn (0);
+}
+
+int
+fn (const int x, int y __attribute__((unused)))
+{
+  if (baz (baz (0, x), 0))
+    return 0;
+  else
+    bar (a);
+  return 0;
+}
+
+void
+bar (struct S x)
+{
+  for (;;)
+    for (; x.s;)
+      b = 0 ? : baz (0, 0);
+}