gcc/testsuite/gcc.dg/vect/wrapv-vect-7.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 128
   7
   8 short sa[N];
   9 short sb[N];
  10
  11 int main1 ()
  12 {
  13   int i;
  14
  15   for (i = 0; i < N; i++)
  16     {
  17       sb[i] = 5;
  18     }
  19
  20   /* check results:  */
  21   for (i = 0; i < N; i++)
  22     {
  23       if (sb[i] != 5)
  24         abort ();
  25     }
  26
  27   for (i = 0; i < N; i++)
  28     {
  29       sa[i] = sb[i] + (short)100;
  30     }
  31
  32   /* check results:  */
  33   for (i = 0; i < N; i++)
  34     {
  35       if (sa[i] != 105)
  36         abort ();
  37     }
  38
  39   return 0;
  40 }
  41
  42 int main (void)
  43 {
  44   check_vect ();
  45
  46   return main1 ();
  47 }
  48
  49 /* Fails for 32-bit targets that don't vectorize PLUS.  */
  50 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" } } */
  51 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  52 /* { dg-final { cleanup-tree-dump "vect" } } */