gcc/testsuite/gcc.dg/vect/vect-early-break_100-pr113287.c

   1 /* { dg-add-options vect_early_break } */
   2 /* { dg-require-effective-target vect_early_break } */
   3 /* { dg-require-effective-target vect_long_long } */
   4
   5 /* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
   6
   7 #include "tree-vect.h"
   8
   9 __attribute__((noipa)) void
  10 bar (unsigned long long *p)
  11 {
  12   __builtin_memset (p, 0, 142 * sizeof (unsigned long long));
  13   p[17] = 0x50000000000ULL;
  14 }
  15
  16 __attribute__((noipa)) int
  17 foo (void)
  18 {
  19   unsigned long long r[142];
  20   bar (r);
  21   unsigned long long v = ((long long) r[0] >> 31);
  22   if (v + 1 > 1)
  23     return 1;
  24   for (unsigned long long i = 1; i <= 140; ++i)
  25     if (r[i] != v)
  26       return 1;
  27   unsigned long long w = r[141];
  28   if ((unsigned long long) (((long long) (w << 60)) >> 60) != v)
  29     return 1;
  30   return 0;
  31 }
  32
  33 int
  34 main ()
  35 {
  36   check_vect ();
  37
  38   if (foo () != 1)
  39     __builtin_abort ();
  40 }