* gcc.c-torture/execute/loop-12.c: New.

From-SVN: r52111

gcc/testsuite/ChangeLog

+2002-04-10  Alan Modra  <amodra@bigpond.net.au>
+
+	* gcc.c-torture/execute/loop-12.c: New.
+
 2002-04-08  Hans-Peter Nilsson  <hp@bitrange.com>
 
 	* g77.f-torture/execute/980628-4.x,

gcc/testsuite/gcc.c-torture/execute/loop-12.c

+/* Checks that pure functions are not treated as const.  */
+
+char *p;
+
+static int __attribute__ ((pure))
+is_end_of_statement (void)
+{
+  return *p == '\n' || *p == ';' || *p == '!';
+}
+
+void foo (void)
+{
+  /* The is_end_of_statement call was moved out of the loop at one stage,
+     resulting in an endless loop.  */
+  while (!is_end_of_statement ())
+    p++;
+}
+
+int
+main (void)
+{
+  p = "abc\n";
+  foo ();
+  return 0;
+}