gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2char.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 121
   8
   9 __attribute__ ((noinline))
  10 void main1 (signed char x, signed char max_result, signed char min_result)
  11 {
  12   int i;
  13   signed char b[N] = {1,2,3,6,8,10,12,14,16,18,20,22,24,26,28,30};
  14   signed char c[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  15   signed char diff = 2;
  16   signed char max = x;
  17   signed char min = x;
  18
  19   for (i = 0; i < N; i++) {
  20     diff += (signed char)(b[i] - c[i]);
  21   }
  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_max } } } */
  50 /* { dg-final { cleanup-tree-dump "vect" } } */