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Re: [tree-ssa] New regressions as of 2003-11-04
- From: Richard Henderson <rth at redhat dot com>
- To: law at redhat dot com
- Cc: Andrew MacLeod <amacleod at redhat dot com>, 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>, Jan Hubicka <jh at suse dot cz>, gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Tue, 4 Nov 2003 15:09:29 -0800
- Subject: Re: [tree-ssa] New regressions as of 2003-11-04
- References: <1067983200.7270.78.camel@p4> <200311042208.hA4M8r6S017708@speedy.slc.redhat.com>
On Tue, Nov 04, 2003 at 03:08:53PM -0700, law@redhat.com wrote:
> Right, but the remove_useless_stmts_and_vars does kill the CFG.
No it doesn't. Mostly because at present it doesn't do
anything at all when called after lowering. And, really,
I don't see how it could.
If you want to clean up out-of-ssa bits, I suggest running
another dominator pass, geared to detect this sort of thing.
r~