From: Jan Hubicka <hubicka@ucw.cz>
To: Richard Biener <richard.guenther@gmail.com>
Cc: Jeff Law <law@redhat.com>, Aldy Hernandez <aldyh@redhat.com>,
gcc-patches <gcc-patches@gcc.gnu.org>,
Jan Hubicka <hubicka@ucw.cz>
Subject: Re: [patch/committed] PR middle-end/65233 make walk-ssa_copies handle empty PHIs
Date: Thu, 05 Mar 2015 00:54:00 -0000 [thread overview]
Message-ID: <20150305005444.GD86051@kam.mff.cuni.cz> (raw)
In-Reply-To: <CAFiYyc0k5pkR8ju+VM1G6FNvg2xkjRwPEu6XtZuqy-uENc3GYQ@mail.gmail.com>
> >
> > It gets passed the valueize callback now which returns NULL_TREE for
> > SSA names we can't follow.
>
> Btw, for match-and-simplify I had to use that as default for fold_stmt
> _exactly_ because of the call to fold_stmt from replace_uses_by
> via merge-blocks from cfgcleanup. This is because replace-uses-by
> doesn't have all uses replaced before it folds the stmt!
>
> We also have the "weaker" in-place flag.
>
> 2015-03-04 Richard Biener <rguenther@suse.de>
>
> PR middle-end/65233
> * ipa-polymorphic-call.c: Include tree-ssa-operands.h and
> tree-into-ssa.h.
> (walk_ssa_copies): Revert last chage. Instead do not walk
> SSA names registered for SSA update.
Maybe include the patch? It should not be problem to make the function
to valuelize everything it looks into.
Honza
next prev parent reply other threads:[~2015-03-05 0:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-02 5:34 Aldy Hernandez
2015-03-02 8:38 ` Richard Biener
2015-03-03 20:18 ` Jan Hubicka
2015-03-04 5:27 ` Jeff Law
2015-03-04 12:41 ` Richard Biener
2015-03-04 13:30 ` Richard Biener
2015-03-04 21:22 ` Jan Hubicka
2015-03-05 0:54 ` Jan Hubicka [this message]
2015-03-05 8:47 ` Richard Biener
2015-03-05 16:10 ` Jeff Law
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