old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-reduc-6.c

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