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Re: [patch] Fix PR43464: update loop closed SSA form once copy prop is done
- From: Zdenek Dvorak <rakdver at kam dot mff dot cuni dot cz>
- To: Michael Matz <matz at suse dot de>
- Cc: Sebastian Pop <sebpop at gmail dot com>, Richard Guenther <rguenther at suse dot de>, Kenneth dot Zadeck at naturalbridge dot com, stevenb dot gcc at gmail dot com, gcc-patches at gcc dot gnu dot org
- Date: Thu, 1 Apr 2010 13:33:30 +0200
- Subject: Re: [patch] Fix PR43464: update loop closed SSA form once copy prop is done
- References: <cb9d34b21003290926k7f14b0beyfbabe0bed5c2e015@mail.gmail.com> <alpine.LNX.2.00.1003301127230.5522@zhemvz.fhfr.qr> <20100330103901.GA17334@kam.mff.cuni.cz> <alpine.LNX.2.00.1003301317070.5522@zhemvz.fhfr.qr> <20100330114904.GA21070@kam.mff.cuni.cz> <alpine.LNX.2.00.1003301527220.5522@zhemvz.fhfr.qr> <Pine.LNX.4.64.1003311420240.18785@wotan.suse.de> <t2ycb9d34b21003311148id4e52334kc6c1684978a4340@mail.gmail.com> <m2xcb9d34b21003311206uf99a9cfcwca26426b615381b0@mail.gmail.com> <Pine.LNX.4.64.1004011325450.18785@wotan.suse.de>
Hi,
> 2) Isn't it
> the case at least that _all_ incoming edges of such nodes must be
> loop exit edges?
no,
Zdenek