New test.

From-SVN: r65062

gcc/testsuite/gcc.c-torture/execute/20030330-1.c

+/* PR opt/10011 */
+/* This is link test for builtin_constant_p simplification + DCE.  */
+
+extern void link_error(void);
+static void usb_hub_port_wait_reset(unsigned int delay)
+{
+        int delay_time;
+        for (delay_time = 0; delay_time < 500; delay_time += delay) {
+                if (__builtin_constant_p(delay))
+                        link_error();
+        }
+}
+
+int main() { return 0; }