(root)/
gcc-13.2.0/
gcc/
testsuite/
gcc.dg/
vect/
no-scevccp-outer-4.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  /* induction variable k advances through inner and outer loops.  */
      11  
      12  __attribute__ ((noinline)) int
      13  foo (int n){
      14    int i,j,k=0;
      15    int sum;
      16  
      17    if (n<=0)
      18      return 0;
      19  
      20    for (i = 0; i < N; i++) {
      21      sum = 0;
      22      for (j = 0; j < n; j+=2) {
      23        sum += k++;
      24      }
      25      a[i] = sum + j;
      26    }
      27  }
      28  
      29  int main (void)
      30  {
      31    int i,j,k=0;
      32    int sum;
      33  
      34    check_vect ();
      35  
      36    for (i=0; i<N; i++)
      37      a[i] = i;
      38   
      39    foo (N);
      40  
      41      /* check results:  */
      42    for (i=0; i<N; i++)
      43      {
      44        sum = 0;
      45        for (j = 0; j < N; j+=2)
      46          sum += k++;
      47        if (a[i] != sum + j)
      48          abort();
      49      }
      50  
      51    return 0;
      52  }
      53  
      54  /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" { xfail *-*-* } } } */