* gcc.c-torture/execute/loop-15.c: New.

From-SVN: r57557

gcc/testsuite/ChangeLog

+2002-09-27  Alan Modra  <amodra@bigpond.net.au>
+
+	* gcc.c-torture/execute/loop-15.c: New.
+
 2002-09-26  Janis Johnson  <janis187@us.ibm.com>
 
 	* README.QMTEST: Fix typo.

gcc/testsuite/gcc.c-torture/execute/loop-15.c

+/* 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;
+}