gcc/testsuite/gcc.dg/vect/no-scevccp-noreassoc-outer-1.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,k=0;
  13   int sum,x;
  14
  15   for (i = 0; i < N; i++) {
  16     sum = 0;
  17     for (j = 0; j < N; j++) {
  18       sum += (i + j);
  19       i++;
  20     }
  21     a[k++] = sum;
  22   }
  23 }
  24
  25 int main (void)
  26 {
  27   int i,j,k=0;
  28   int sum;
  29
  30   check_vect ();
  31
  32   foo ();
  33
  34     /* check results:  */
  35   for (i=0; i<N; i++)
  36     {
  37       sum = 0;
  38       for (j = 0; j < N; j++){
  39         sum += (j + i);
  40         i++;
  41       }
  42       if (a[k++] != sum)
  43         abort();
  44     }
  45
  46   return 0;
  47 }
  48
  49 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" { xfail *-*-* } } } */