[Bug rtl-optimization/47899] [4.5/4.6 Regression] ICE in get_loop_body, at cfgloop.c:831

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47899

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-28 
09:39:52 UTC ---
Somewhat simplified testcase (still for -O -funroll-loops):

extern unsigned int a, b, c;
extern int d;

static int
foo (void)
{
lab:
  if (b)
    for (d = 0; d >= 0; d--)
      if (a || c)
    for (; c; c++)
      ;
      else
    goto lab;
}

int
main ()
{
  foo ();
  return 0;
}