re PR tree-optimization/63563 (ICE: in vectorizable_store, at tree-vect-stmts.c:5106 with -mavx2)

	PR tree-optimization/63563
	* tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Bail out
	if either dra or drb stmts are not normal loads/stores.

	* gcc.target/i386/pr63563.c: New test.

From-SVN: r216507

gcc/ChangeLog

+2014-10-21  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/63563
+	* tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Bail out
+	if either dra or drb stmts are not normal loads/stores.
+
 2014-10-21  Ilya Tocar  <ilya.tocar@intel.com>
 
 	* config/i386/i386.c (expand_vec_perm_1): Fix

gcc/testsuite/ChangeLog

+2014-10-21  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/63563
+	* gcc.target/i386/pr63563.c: New test.
+
 2014-10-20  Richard Biener  <rguenther@suse.de>
 
 	* gcc.dg/tree-ssa/slsr-19.c: Make robust against operand order changes.

gcc/testsuite/gcc.target/i386/pr63563.c

+/* PR tree-optimization/63563 */
+/* { dg-do compile } */
+/* { dg-options "-O3 -mavx2" } */
+
+struct A { unsigned long a, b, c, d; } a[1024] = { { 0, 1, 2, 3 } }, b;
+
+void
+foo (void)
+{
+  int i;
+  for (i = 0; i < 1024; i++)
+    {
+      a[i].a = a[i].b = a[i].c = b.c;
+      if (a[i].d)
+	a[i].d = b.d;
+    }
+}

gcc/tree-vect-data-refs.c

@@ -2551,11 +2551,14 @@ vect_analyze_data_ref_accesses (loop_vec_info loop_vinfo, bb_vec_info bb_vinfo)
 	     over them.  The we can just skip ahead to the next DR here.  */
 
 	  /* Check that the data-refs have same first location (except init)
-	     and they are both either store or load (not load and store).  */
+	     and they are both either store or load (not load and store,
+	     not masked loads or stores).  */
 	  if (DR_IS_READ (dra) != DR_IS_READ (drb)
 	      || !operand_equal_p (DR_BASE_ADDRESS (dra),
 				   DR_BASE_ADDRESS (drb), 0)
-	      || !dr_equal_offsets_p (dra, drb))
+	      || !dr_equal_offsets_p (dra, drb)
+	      || !gimple_assign_single_p (DR_STMT (dra))
+	      || !gimple_assign_single_p (DR_STMT (drb)))
 	    break;
 
 	  /* Check that the data-refs have the same constant size and step.  */