re PR tree-optimization/36991 (ICE in remove_useless_stmts_1, at tree-cfg.c:1882)

2008-08-01  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/36991
	* gcc.dg/pr36991.c: New test.

From-SVN: r138530

gcc/testsuite/ChangeLog

+2008-08-01  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/36991
+	* gcc.dg/pr36991.c: New test.
+
 2008-08-01  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/boolean_expr.ad[sb]: Rename to boolean_expr1.ad[sb].

gcc/testsuite/gcc.dg/pr36991.c

+/* PR tree-optimization/36991 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+typedef float V __attribute__ ((vector_size (16)));
+typedef union { V v[4][4]; } U;
+
+void
+foo (float x, float y, U *z)
+{
+  z->v[1][0] = z->v[0][1] = (V) { x, y, 0, 0 };
+}