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

   1 /* PR tree-optimization/82929 */
   2 /* { dg-do compile { target store_merge } } */
   3 /* { dg-options "-O2 -fno-tree-vectorize -fdump-tree-store-merging" } */
   4
   5 void
   6 foo (short *p, short *q, short *r)
   7 {
   8   p = __builtin_assume_aligned (p, __alignof__ (int));
   9   q = __builtin_assume_aligned (q, __alignof__ (int));
  10   r = __builtin_assume_aligned (r, __alignof__ (int));
  11   short a = q[0];
  12   short b = q[1];
  13   short c = ~a;
  14   short d = r[0];
  15   short e = r[1];
  16   short f = ~b;
  17   p[0] = c & d;
  18   p[1] = e & f;
  19 }
  20
  21 /* { dg-final { scan-tree-dump-times "Merging successful" 1 "store-merging" } } */