gcc/testsuite/gcc.dg/vect/pr78558.c

   1 /* PR tree-optimization/78558 */
   2
   3 #include "tree-vect.h"
   4
   5 struct S
   6 {
   7   char p[48];
   8   unsigned long long q, r, s;
   9 } s[50];
  10
  11 struct D
  12 {
  13   unsigned long long q, r;
  14 } d[50];
  15
  16 void
  17 foo (void)
  18 {
  19   unsigned long i;
  20   for (i = 0; i < 50; ++i)
  21     {
  22       d[i].q = s[i].q;
  23       d[i].r = s[i].r;
  24     }
  25 }
  26
  27 int
  28 main ()
  29 {
  30   check_vect ();
  31   unsigned long i;
  32   for (i = 0; i < 50; ++i)
  33     {
  34       s[i].q = i;
  35       s[i].r = 50 * i;
  36     }
  37   asm volatile ("" : : "g" (s), "g" (d) : "memory");
  38   foo ();
  39   asm volatile ("" : : "g" (s), "g" (d) : "memory");
  40 #pragma GCC novector
  41   for (i = 0; i < 50; ++i)
  42     if (d[i].q != i || d[i].r != 50 * i)
  43       abort ();
  44   return 0;
  45 }