gcc/testsuite/gcc.dg/vect/no-scevccp-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;
  14
  15   for (i = 0; i < N; i++) {
  16     sum = 0;
  17     for (j = 0; j < N; j++) {
  18       sum += j;
  19     }
  20     a[i] += sum + i;
  21   }
  22 }
  23
  24 int main (void)
  25 {
  26   int i,j;
  27   int sum;
  28   int aa[N];
  29
  30   check_vect ();
  31
  32   for (i=0; i<N; i++){
  33     a[i] = i;
  34     aa[i] = i;
  35   }
  36
  37   foo ();
  38
  39     /* check results:  */
  40 #pragma GCC novector
  41   for (i=0; i<N; i++)
  42     {
  43       sum = 0;
  44       for (j = 0; j < N; j++)
  45         sum += j;
  46       if (a[i] != aa[i] + sum + i)
  47         abort();
  48     }
  49
  50   return 0;
  51 }
  52
  53 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" } } */