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