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Re: [RFC] callgraph and unit at time compilation
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>,"gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: 15 Nov 2002 21:20:50 -0500
- Subject: Re: [RFC] callgraph and unit at time compilation
- References: <20021116015332.GA22130@atrey.karlin.mff.cuni.cz>
On Fri, 2002-11-15 at 20:53, Jan Hubicka wrote:
> My question is whether this approach looks sensible. If so, I would
> like to hear some comments from people more experienced with tree
> inlining than I am.
>
I would strongly encourage you to approach this problem in a
language-independent manner. In the future, we will want to do more
than inlining. We need to be able to build flowgraph for all/several
functions in one compilation unit so that we can do inter-procedural
analyses and optimizations. We have some of the basic building blocks
on the tree-ssa branch (there's even a call-graph builder).
Solving this for only one front end will force us to solve the same
problem for all the front ends. Better design something that we can use
in the future to do real unit-at-a-time optimizations.
Diego.