[Bug tree-optimization/59519] ICE on valid code at -O3 on x86_64-linux-gnu in slpeel_update_phi_nodes_for_guard1, at tree-vect-loop-manip.c:486

[su at cs dot ucdavis.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59519

--- Comment #1 from Zhendong Su <su at cs dot ucdavis.edu> ---
Below is simpler testcase that triggers the same ICE: 

------------------------------------

int a, b, c, d;

void
foo ()
{
  for (; d; d++)
    for (b = 0; b < 14; b++)
      {
    c |= 1;
    if (a)
      break;
      }
}