gcc/testsuite/gcc.target/aarch64/pr70398.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O -fno-tree-loop-optimize -fno-tree-ter -static" } */
   3 unsigned int in[8 * 8] =
   4   { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
   5     45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 };
   6
   7 unsigned char out[8 * 8];
   8
   9 int
  10 main (void)
  11 {
  12   int i;
  13   for (i = 0; i < 8 * 4; i++)
  14     {
  15       out[i * 2] = (unsigned char) in[i * 2] + 1;
  16       out[i * 2 + 1] = (unsigned char) in[i * 2 + 1] + 2;
  17     }
  18   __asm__("":::"memory");
  19   for (i = 0; i < 8 * 4; i++)
  20     {
  21       if (out[i * 2] != in[i * 2] + 1
  22           || out[i * 2 + 1] != in[i * 2 + 1] + 2)
  23         __builtin_abort ();
  24     }
  25   return 0;
  26 }