gcc/testsuite/gcc.dg/vect/no-scevccp-outer-16.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;
  13   unsigned short j;
  14   int sum = 0;
  15   unsigned short sum_j;
  16
  17   for (i = 0; i < N; i++) {
  18     sum += i;
  19
  20     sum_j = 0;
  21     for (j = 0; j < N; j++) {
  22       sum_j += j;
  23     }
  24     a[i] = sum_j + 5;
  25   }
  26   return sum;
  27 }
  28
  29 int main (void)
  30 {
  31   int i;
  32   unsigned short j, sum_j;
  33   int sum = 0;
  34   int res;
  35
  36   check_vect ();
  37
  38   for (i=0; i<N; i++)
  39     a[i] = i;
  40
  41   res = foo ();
  42
  43   /* check results:  */
  44   for (i=0; i<N; i++)
  45     {
  46       sum += i;
  47
  48       sum_j = 0;
  49       for (j = 0; j < N; j++){
  50         sum_j += j;
  51       }
  52       if (a[i] != sum_j + 5)
  53         abort();
  54     }
  55   if (res != sum)
  56     abort ();
  57
  58   return 0;
  59 }
  60
  61 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" { xfail { ! {vect_unpack } } } } } */
  62 /* { dg-final { cleanup-tree-dump "vect" } } */