re PR rtl-optimization/33653 (volatile memory access optimized away)

        PR rtl-optimization/33653
        * gcc.dg/pr33653.c: New.

From-SVN: r129007

gcc/testsuite/ChangeLog

+2007-10-04  Michael Matz  <matz@suse.de>
+
+	PR rtl-optimization/33653
+	* gcc.dg/pr33653.c: New.
+
 2007-10-04  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/33627

gcc/testsuite/gcc.dg/pr33653.c

+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-rtl-shorten" } */
+
+void f (volatile char *p)
+{
+  char c = p[0];
+}
+
+/* { dg-final { scan-rtl-dump "mem/v" "shorten" } } */
+/* { dg-final { cleanup-rtl-dump "shorten" } } */