(root)/
gcc-13.2.0/
gcc/
testsuite/
gcc.dg/
vect/
vect-nb-iter-ub-3.c
       1  /* { dg-additional-options "-fdump-tree-cunroll-details --param vect-epilogues-nomask=0" } */
       2  
       3  #include "tree-vect.h"
       4  
       5  int ii[33];
       6  char cc[66] =
       7    { 0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 8, 0, 9, 0,
       8      10, 0, 11, 0, 12, 0, 13, 0, 14, 0, 15, 0, 16, 0, 17, 0, 18, 0, 19, 0,
       9      20, 0, 21, 0, 22, 0, 23, 0, 24, 0, 25, 0, 26, 0, 27, 0, 28, 0, 29, 0,
      10      30, 0, 31, 0, 32, 0 };
      11  
      12  void __attribute__((noinline,noclone))
      13  foo (int s)
      14  {
      15    int i;
      16     for (i = 0; i < s; i++)
      17       ii[i] = (int) cc[i*2];
      18  }
      19  
      20  int main (int argc, const char **argv)
      21  {
      22    int i;
      23    check_vect ();
      24    foo (33);
      25    for (i = 0; i < 33; i++)
      26      if (ii[i] != i)
      27        __builtin_abort ();
      28  }
      29  
      30  /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" { target { i?86-*-* x86_64-*-* } } } } */
      31  /* { dg-final { scan-tree-dump-not "loop turned into non-loop; it never loops" "cunroll" { target { i?86-*-* x86_64-*-* } } } } */