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Re: [tree-ssa] Lazy updating of stmt operands
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Andrew Macleod <amacleod at redhat dot com>
- Cc: Chris Lattner <sabre at nondot dot org>, Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>, Jeff Law <law at redhat dot com>, gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Fri, 12 Dec 2003 15:39:49 -0500
- Subject: Re: [tree-ssa] Lazy updating of stmt operands
- Organization: Red Hat Canada
- References: <Pine.LNX.4.44.0312121345230.16876-100000@nondot.org> <1071258836.14001.277.camel@p4>
On Fri, 2003-12-12 at 14:53, Andrew MacLeod wrote:
> Yeah, but thats already consumed. If you are suggesting we replace our
> entire operand implemenation with FUDs, I'm pretty sure thats not going
> to happen :-)
>
But Chris's point has nothing to do with FUD chains. FUD chains is just
another SSA representation. It is not related to how you keep track of
your operands. It merely determines whether you rewrite operands or
keep explicit use-def links between statements.
Diego.