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, 40 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/loop-15.c b/gcc/testsuite/gcc.c-torture/execute/loop-15.c
new file mode 100644
index 000000000..8cb5125a2
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/loop-15.c
@@ -0,0 +1,40 @@
+/* Bombed with a segfault on powerpc-linux.  doloop.c generated wrong
+   loop count.  */
+void
+foo (unsigned long *start, unsigned long *end)
+{
+  unsigned long *temp = end - 1;
+
+  while (end > start)
+    *end-- = *temp--;
+}
+
+int
+main (void)
+{
+  unsigned long a[5];
+  int start, end, k;
+
+  for (start = 0; start < 5; start++)
+    for (end = 0; end < 5; end++)
+      {
+	for (k = 0; k < 5; k++)
+	  a[k] = k;
+
+	foo (a + start, a + end);
+
+	for (k = 0; k <= start; k++)
+	  if (a[k] != k)
+	    abort ();
+
+	for (k = start + 1; k <= end; k++)
+	  if (a[k] != k - 1)
+	    abort ();
+
+	for (k = end + 1; k < 5; k++)
+	  if (a[k] != k)
+	    abort ();
+      }
+
+  return 0;
+}