no-scevccp-outer-6.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 __attribute__ ((noinline)) int
   9 foo (int * __restrict__ b, int k){
  10   int i,j;
  11   int sum,x;
  12   int a[N];
  13
  14   for (i = 0; i < N; i++) {
  15     sum = b[i];
  16     for (j = 0; j < N; j++) {
  17       sum += j;
  18     }
  19     a[i] = sum;
  20   }
  21
  22   return a[k];
  23 }
  24
  25 int main (void)
  26 {
  27   int i,j;
  28   int sum;
  29   int b[N];
  30   int a[N];
  31
  32   check_vect ();
  33
  34   for (i=0; i<N; i++)
  35     b[i] = i + 2;
  36
  37   for (i=0; i<N; i++)
  38     a[i] = foo (b,i);
  39
  40     /* check results:  */
  41   for (i=0; i<N; i++)
  42     {
  43       sum = b[i];
  44       for (j = 0; j < N; j++){
  45         sum += j;
  46       }
  47       if (a[i] != sum)
  48         abort();
  49     }
  50
  51   return 0;
  52 }
  53
  54 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" { xfail { unaligned_stack || vect_no_align } } } } */
  55 /* { dg-final { scan-tree-dump-times "vect_recog_widen_mult_pattern: detected" 1 "vect" { xfail *-*-* } } } */
  56 /* { dg-final { cleanup-tree-dump "vect" } } */