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Re: [PATCH] Fix PR54458
- From: Markus Trippelsdorf <markus at trippelsdorf dot de>
- To: Richard Guenther <rguenther at suse dot de>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Sat, 8 Sep 2012 08:17:42 +0200
- Subject: Re: [PATCH] Fix PR54458
- References: <alpine.LNX.2.00.1209041121380.28649@zhemvz.fhfr.qr>
On 2012.09.04 at 11:22 +0200, Richard Guenther wrote:
>
> This fixes PR54458 where DOM jump threading turns a loop into
> one with multiple latches but does not mark it so.
>
> Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
>
> Richard.
>
> 2012-09-04 Richard Guenther <rguenther@suse.de>
>
> PR tree-optimization/54458
> * tree-ssa-threadupdate.c (thread_through_loop_header): If we
> turn the loop into one with multiple latches mark it so.
This commit causes http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54520
--
Markus