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[Bug bootstrap/44470] [4.6 Regression] Failed to bootstrap with - -with-arch=atom
- From: "hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Jun 2010 20:30:14 -0000
- Subject: [Bug bootstrap/44470] [4.6 Regression] Failed to bootstrap with - -with-arch=atom
- References: <bug-44470-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #9 from hjl dot tools at gmail dot com 2010-06-09 20:30 -------
(In reply to comment #6)
> Following patch is also needed to fix conditional splitting (it does not fix
> original uncovered problem where BLOCK_FOR_INSN returns null):
>
>
I am not sure this is correct. The code prior to revision 160394 was
written in such a way to support X86_TUNE_OPT_AGU. We may have missed
some cases. But it is mostly correct. I'd like to know what specific
cases revision 160394 tried to fix. Thanks.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44470