re PR tree-optimization/83195 (pr82929.c scan for "Merging successful" fail)

	PR tree-optimization/83195
	* gcc.dg/pr82929.c: Don't check for "Merging successful" on arm.
	* gcc.dg/pr82929-2.c: New test.

From-SVN: r255247

gcc/testsuite/ChangeLog

+2017-11-29  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/83195
+	* gcc.dg/pr82929.c: Don't check for "Merging successful" on arm.
+	* gcc.dg/pr82929-2.c: New test.
+
 2017-11-29  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/83202

gcc/testsuite/gcc.dg/pr82929-2.c

+/* PR tree-optimization/82929 */
+/* { dg-do compile { target store_merge } } */
+/* { dg-options "-O2 -fdump-tree-store-merging" } */
+
+void
+foo (short *p, short *q, short *r)
+{
+  p = __builtin_assume_aligned (p, __alignof__ (int));
+  q = __builtin_assume_aligned (q, __alignof__ (int));
+  r = __builtin_assume_aligned (r, __alignof__ (int));
+  short a = q[0];
+  short b = q[1];
+  short c = ~a;
+  short d = r[0];
+  short e = r[1];
+  short f = ~b;
+  p[0] = c & d;
+  p[1] = e & f;
+}
+
+/* { dg-final { scan-tree-dump-times "Merging successful" 1 "store-merging" } } */

gcc/testsuite/gcc.dg/pr82929.c

@@ -15,4 +15,4 @@ foo (short *p, short *q, short *r)
   p[1] = e & f;
 }
 
-/* { dg-final { scan-tree-dump-times "Merging successful" 1 "store-merging" } } */
+/* { dg-final { scan-tree-dump-times "Merging successful" 1 "store-merging" { target { ! arm*-*-* } } } } */