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Re: [tree-ssa] New regressions as of 2003-11-04
- From: law at redhat dot com
- To: Jan Hubicka <hubicka at ucw dot cz>
- Cc: Andrew MacLeod <amacleod at redhat dot com>, Jan Hubicka <jh at suse dot cz>, Diego Novillo <dnovillo at redhat dot com>, Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>, Daniel Berlin <dberlin at dberlin dot org>, gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Mon, 10 Nov 2003 12:10:02 -0700
- Subject: Re: [tree-ssa] New regressions as of 2003-11-04
- Reply-to: law at redhat dot com
In message <20031110190048.GE30856@atrey.karlin.mff.cuni.cz>, Jan Hubicka write
s:
>We need to preserve CFG trought RTL expansion in order to be able to
>read profile into it and maintain it until end of compilation.
>I have patches for the CFG aware RTL expansion and sub basic block
>creation ready, just waiting for other issues to settle down (mainly the
>problems with CFG being corrupt before out-of-ssa) before sending htem
>out.
I can certainly see the desire to preserve the CFG. We just have to find
a sane way to do that.
>So I would love us to preserve CFG across remove_useless_stmts_and_vars.
>Zdenek already sent patch for that AFAIK.
Zdenek has a number of questions he needs to answer in regards to that
patch before I'm going to approve it.
jeff