vect-cond-1.c

   1 /* { dg-require-effective-target vect_condition } */
   2
   3 #include <stdlib.h>
   4 #include "tree-vect.h"
   5
   6 #define M 32
   7 #define N 16
   8
   9 int x_in[M];
  10 int x_out[M];
  11 int c[N] = {3,2,1,10,1,42,3,4,50,9,32,8,11,10,1,2};
  12 int a[N+1] = {0,16,32,48,64,128,256,512,0,16,32,48,64,128,256,512,1024};
  13 int check_result[M] = {1024,1024,1024,256,256,256,256,256,256,256,256,128,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48};
  14
  15 __attribute__ ((noinline)) void
  16 foo ()
  17 {
  18   int j, i, x;
  19   int curr_a, next_a;
  20
  21   for (j = 0; j < M; j++)
  22     {
  23       x = x_in[j];
  24       curr_a = a[0];
  25
  26       for (i = 0; i < N; i++)
  27         {
  28           next_a = a[i+1];
  29           curr_a = x > c[i] ? curr_a : next_a;
  30         }
  31
  32       x_out[j] = curr_a;
  33     }
  34 }
  35
  36 int main (void)
  37 {
  38   int i,j;
  39
  40   check_vect ();
  41
  42   for (j = 0; j < M; j++)
  43     x_in[j] = j;
  44
  45   foo ();
  46
  47   for (j = 0; j < M; j++)
  48     if (x_out[j] != check_result[j])
  49       abort ();
  50
  51   return 0;
  52 }
  53
  54 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" { xfail vect_no_align } } } */
  55 /* { dg-final { cleanup-tree-dump "vect" } } */
  56
  57