gcc/testsuite/gcc.dg/vect/vect-early-break_80.c

   1 /* { dg-add-options vect_early_break } */
   2 /* { dg-require-effective-target vect_early_break_hw } */
   3 /* { dg-require-effective-target vect_int } */
   4
   5 /* { dg-additional-options "-Ofast" } */
   6
   7 /* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
   8
   9 #include "tree-vect.h"
  10
  11 extern void abort ();
  12
  13 int x;
  14 __attribute__ ((noinline, noipa))
  15 void foo (int *a, int *b)
  16 {
  17   int local_x = x;
  18   for (int i = 0; i < 1024; ++i)
  19     {
  20       if (i + local_x == 13)
  21         break;
  22       a[i] = 2 * b[i];
  23     }
  24 }
  25
  26 int main ()
  27 {
  28
  29   check_vect ();
  30
  31   int a[1024] = {0};
  32   int b[1024] = {0};
  33
  34   for (int i = 0; i < 1024; i++)
  35     b[i] = i;
  36
  37   x = -512;
  38   foo (a, b);
  39
  40   if (a[524] != 1048)
  41     abort ();
  42
  43   if (a[525] != 0)
  44     abort ();
  45
  46   if (a[1023] != 0)
  47     abort ();
  48   return 0;
  49 }