gcc/testsuite/gcc.dg/vect/vect-cond-1.c

   1 /* { dg-require-effective-target vect_condition } */
   2
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include "tree-vect.h"
   6
   7 #define M 32
   8 #define N 16
   9
  10 int x_in[M];
  11 int x_out[M];
  12 int c[N] = {3,2,1,10,1,42,3,4,50,9,32,8,11,10,1,2};
  13 int a[N+1] = {0,16,32,48,64,128,256,512,0,16,32,48,64,128,256,512,1024};
  14 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};
  15
  16 __attribute__ ((noinline)) void
  17 foo ()
  18 {
  19   int j, i, x;
  20   int curr_a, next_a;
  21
  22   for (j = 0; j < M; j++)
  23     {
  24       x = x_in[j];
  25       curr_a = a[0];
  26
  27       for (i = 0; i < N; i++)
  28         {
  29           next_a = a[i+1];
  30           curr_a = x > c[i] ? curr_a : next_a;
  31         }
  32
  33       x_out[j] = curr_a;
  34     }
  35 }
  36
  37 int main (void)
  38 {
  39   int i,j;
  40
  41   check_vect ();
  42
  43   for (j = 0; j < M; j++)
  44     x_in[j] = j;
  45
  46   foo ();
  47
  48   for (j = 0; j < M; j++)
  49     if (x_out[j] != check_result[j])
  50       abort ();
  51
  52   return 0;
  53 }
  54
  55 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" { xfail vect_no_align } } } */
  56 /* { dg-final { cleanup-tree-dump "vect" } } */
  57
  58