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Subject: [Bug debug/48866] gcc hangs when -g is set
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48866

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-04 12:07:42 UTC ---
cselib actually.  Shorter testcase:

struct S { struct S *d[2]; };

struct S *
foo (struct S *x)
{
  struct S *y, *z;
  y =
x->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1];
  z =
y->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1]->d[1];
  return z;
}