no-scevccp-noreassoc-outer-5.c

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