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[Bug tree-optimization/50644] ICE in set_is_used added today
- From: "matz at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 20 Oct 2011 08:14:45 +0000
- Subject: [Bug tree-optimization/50644] ICE in set_is_used added today
- Auto-submitted: auto-generated
- References: <bug-50644-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50644
--- Comment #8 from Michael Matz <matz at gcc dot gnu.org> 2011-10-20 08:14:45 UTC ---
Andi, the patch you bisected transformed a pre-existing bug into a segfault.
Reverting it wouldn't fix anything.
You could try the stab-in-the-dark patch from PR50741, but if that doesn't help
I don't see how to make progress here without somebody who sees the problem to
go into gdb and do a 'p debug_tree(var)' on a cc1 that has
enough debuginfo for var to still contain a useful value.