old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-reduc-1.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 /* Test vectorization of reduction of unsigned-int.  */
  10
  11 void main1 (unsigned int x, unsigned int max_result, unsigned int min_result)
  12 {
  13   int i;
  14   unsigned int ub[N] = {1,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  15   unsigned int uc[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  16   unsigned int udiff = 2;
  17   unsigned int umax = x;
  18   unsigned int umin = x;
  19
  20   /* Summation.  */
  21   for (i = 0; i < N; i++) {
  22     udiff += (ub[i] - uc[i]);
  23   }
  24
  25   /* Maximum.  */
  26   for (i = 0; i < N; i++) {
  27     umax = umax < uc[i] ? uc[i] : umax;
  28   }
  29
  30   /* Minimum.  */
  31   for (i = 0; i < N; i++) {
  32     umin = umin > uc[i] ? uc[i] : umin;
  33   }
  34
  35   /* check results:  */
  36   if (udiff != DIFF)
  37     abort ();
  38   if (umax != max_result)
  39     abort ();
  40   if (umin != min_result)
  41     abort ();
  42 }
  43
  44 int main (void)
  45 {
  46   check_vect ();
  47
  48   main1 (100, 100, 1);
  49   main1 (0, 15, 0);
  50   return 0;
  51 }
  52
  53 /* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" { xfail { vect_no_int_add || vect_no_int_max } } } } */
  54 /* { dg-final { cleanup-tree-dump "vect" } } */