[Bug tree-optimization/27335] New: [4.0/4.1 regression] ICE in get_loop_body

[jakub at gcc dot gnu dot org]

extern void bar () __attribute__ ((noreturn));

inline double
baz (double *x, unsigned int y)
{
  if (y >= 6)
    bar ();
  return x[y];
}

double *a, *b;

void
foo ()
{
  unsigned int r, s, t;

  for (r = 0; r < 2; r++)
    for (t = 0; t < 2; t++)
      {
        for (s = 0; s < 3; s++)
          b[r * 2 + t] += baz (a, 3 * s + t);
      }
}

ICEs with -O2 -funroll-loops in get_loop_body, loop->num_nodes is 0.


-- 
           Summary: [4.0/4.1 regression] ICE in get_loop_body
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27335