gcc/testsuite/gcc.dg/vect/pr70354-2.c

   1 /* PR tree-optimization/70354 */
   2
   3 #ifndef main
   4 #include "tree-vect.h"
   5 #endif
   6
   7 unsigned long long a[64], b[64];
   8
   9 __attribute__((noinline, noclone)) void
  10 foo (void)
  11 {
  12   int i;
  13   for (i = 0; i < 64; i++)
  14     a[i] <<= (b[i] - 0x1200000000ULL);
  15 }
  16
  17 int
  18 main ()
  19 {
  20   int i;
  21 #ifndef main
  22   check_vect ();
  23 #endif
  24   if (__CHAR_BIT__ != 8 || sizeof (long long int) != 8)
  25     return 0;
  26   for (i = 0; i < 64; i++)
  27     {
  28       a[i] = 0x1234ULL;
  29       b[i] = 0x1200000000ULL + (i % 54);
  30     }
  31   foo ();
  32 #pragma GCC novector
  33   for (i = 0; i < 64; i++)
  34     if (a[i] != (0x1234ULL << (i % 54)))
  35       abort ();
  36   return 0;
  37 }