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Re: [tree-ssa] New regressions as of 2003-11-04
- From: law at redhat dot com
- To: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>
- Cc: Andrew MacLeod <amacleod at redhat dot com>, Jan Hubicka <jh at suse dot cz>, Diego Novillo <dnovillo at redhat dot com>, Daniel Berlin <dberlin at dberlin dot org>, gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Mon, 10 Nov 2003 12:09:01 -0700
- Subject: Re: [tree-ssa] New regressions as of 2003-11-04
- Reply-to: law at redhat dot com
In message <20031110190205.GA8754@atrey.karlin.mff.cuni.cz>, Zdenek Dvorak writ
es:
>Concerning compile time -- there is nothing much to worry about, since
>no transformation done by remove_useless_stmts_and_vars does anything
>important with it.
My timings showed quite the opposite.
>And finally, I already have it done -- see
>http://gcc.gnu.org/ml/gcc-patches/2003-11/msg00388.html.
And have you compared the timings before and after with your patch?
Have you verified that it covers all the cases that we were previously
handling (by looking at the dumps before/after)
Have you verifed that it does the right thing when the CFG isn't available
since this code is called before we build the CFG?
jeff