gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2short.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 16
   7 #define DIFF 242
   8
   9 short b[N] = {1,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  10 short c[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  11
  12 __attribute__ ((noinline))
  13 void main1 (short x, short max_result, short min_result)
  14 {
  15   int i;
  16   short diff = 2;
  17   short max = x;
  18   short min = x;
  19
  20   for (i = 0; i < N; i++) {
  21     diff += (short)(b[i] - c[i]);
  22   }
  23   for (i = 0; i < N; i++) {
  24     max = max < c[i] ? c[i] : max;
  25   }
  26
  27   for (i = 0; i < N; i++) {
  28     min = min > c[i] ? c[i] : min;
  29   }
  30
  31   /* check results:  */
  32   if (diff != DIFF)
  33     abort ();
  34   if (max != max_result)
  35     abort ();
  36   if (min != min_result)
  37     abort ();
  38 }
  39
  40 int main (void)
  41 {
  42   check_vect ();
  43
  44   main1 (100, 100, 1);
  45   main1 (0, 15, 0);
  46   return 0;
  47 }
  48
  49 /* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" { xfail vect_no_int_min_max } } } */