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Re: [lno, tree-ssa] Fix kill_redundant_phi_nodes
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>
- Cc: Jeff Law <law at redhat dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 20 May 2004 15:02:58 -0400
- Subject: Re: [lno, tree-ssa] Fix kill_redundant_phi_nodes
- Organization: Red Hat Canada
- References: <20040413203933.GA19867@atrey.karlin.mff.cuni.cz> <1085076806.23047.55.camel@localhost.localdomain> <20040520182224.GB9249@atrey.karlin.mff.cuni.cz>
On Thu, 2004-05-20 at 14:22, Zdenek Dvorak wrote:
> yes, most of the time. It is not hard to create an example where the
> propagation done by DOM won't be sufficient, but they are a bit
> artificial. Removing the iteration from kill_redundant_phi_nodes it
> probably would not hurt much (but given that it does not cost us almost
> anything anyway, I don't see much reasons for it).
>
I mean to remove *all* of kill_redundant_phi_nodes, actually. If you
can give me a test case that cannot possibly be handled by the
propagation we already do, I'll appreciate it.
Thanks. Diego.