gcc/testsuite/gcc.dg/vect/pr56918.c

   1 /* PR tree-optimization/56918 */
   2 /* { dg-additional-options "-O3" } */
   3
   4 #include "tree-vect.h"
   5
   6 extern void abort (void);
   7 double data[8];
   8
   9 __attribute__((noinline, noclone)) void
  10 foo ()
  11 {
  12   int i;
  13   for (i = 0; i < 8; ++i)
  14     data[i] = ((i + 2) % 3) + 1;
  15 }
  16
  17 int
  18 main ()
  19 {
  20   int i;
  21   check_vect ();
  22   foo ();
  23   if (data[0] != 3 || data[7] != 1)
  24     abort ();
  25 #pragma GCC novector
  26   for (i = 1; i < 4; ++i)
  27     if (data[i] != i || data[i + 3] != i)
  28       abort ();
  29   return 0;
  30 }
  31