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, 86 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr47337.c b/gcc/testsuite/gcc.c-torture/execute/pr47337.c
new file mode 100644
index 000000000..ea88484a2
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr47337.c
@@ -0,0 +1,86 @@
+/* PR rtl-optimization/47337 */
+
+static unsigned int a[256], b = 0;
+static char c = 0;
+static int d = 0, *f = &d;
+static long long e = 0;
+
+static short
+foo (long long x, long long y)
+{
+  return x / y;
+}
+
+static char
+bar (char x, char y)
+{
+  return x - y;
+}
+
+static int
+baz (int x, int y)
+{
+  *f = (y != (short) (y * 3));
+  for (c = 0; c < 2; c++)
+    {
+    lab:
+      if (d)
+	{
+	  if (e)
+	    e = 1;
+	  else
+	    return x;
+	}
+      else
+	{
+	  d = 1;
+	  goto lab;
+	}
+      f = &d;
+    }
+  return x;
+}
+
+static void
+fnx (unsigned long long x, int y)
+{
+  if (!y)
+    {
+      b = a[b & 1];
+      b = a[b & 1];
+      b = a[(b ^ (x & 1)) & 1];
+      b = a[(b ^ (x & 1)) & 1];
+    }
+}
+
+char *volatile w = "2";
+
+int
+main ()
+{
+  int h = 0;
+  unsigned int k = 0;
+  int l[8];
+  int i, j;
+
+  if (__builtin_strcmp (w, "1") == 0)
+    h = 1;
+
+  for (i = 0; i < 256; i++)
+    {
+      for (j = 8; j > 0; j--)
+	k = 1;
+      a[i] = k;
+    }
+  for (i = 0; i < 8; i++)
+    l[i] = 0;
+
+  d = bar (c, c);
+  d = baz (c, 1 | foo (l[0], 10));
+  fnx (d, h);
+  fnx (e, h);
+
+  if (d != 0)
+    __builtin_abort ();
+  return 0;
+}