re PR tree-optimization/25737 (ACATS c974001 c974013 hang with struct aliasing)

	PR tree-optimization/25737
	* testsuite/gcc.dg/tree-ssa/alias-14.c: New test.

From-SVN: r125889

gcc/testsuite/ChangeLog

+2007-06-20  Adam Nemet  <anemet@caviumnetworks.com>
+
+	PR tree-optimization/25737
+	* testsuite/gcc.dg/tree-ssa/alias-14.c: New test.
+
 2007-06-20  Hui-May Chang  <hm.chang@apple.com>
 
 	* gcc.target/i386/large-size-array-3.c: New.

gcc/testsuite/gcc.dg/tree-ssa/alias-14.c

+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+struct s
+{
+  long long a:12;
+  long long b:12;
+  long long c:40;
+};
+
+struct s s, *p = &s;
+
+int
+main ()
+{
+  p->a = 1;
+  s.a = 0;
+  s.b = 0;
+  return p->a + s.b;
+}