[Bug lto/48508] ICE in output_die, at dwarf2out.c:11409

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48508

--- Comment #12 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-14 14:33:27 UTC ---
Even more reduced, fails with

> ./g++ -B. -g -O -r -nostdlib 1.ii 2.ii -flto -finline-small-functions
lto1: internal compiler error: in output_die, at dwarf2out.c:8401

1.ii
----
class Value;
bool js_ValueToAtom(const Value &v);
void
js_InternNonIntElementIdSlow(const Value &idval)
{
  js_ValueToAtom(idval);
} 

2.ii
----
class Value;
void
js_InternNonIntElementId(const Value &idval)
{
  extern void js_InternNonIntElementIdSlow(const Value &);
  js_InternNonIntElementIdSlow(idval);
}
void
Interpret(const Value &idval_)
{
  js_InternNonIntElementId(idval_);
}

Appearantly it is required that js_InternNonIntElementId is inlined
eary while js_InternNonIntElementIdSlow is inlined two times at IPA
time, both into js_InternNonIntElementId and Interpret.