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Re: More fun with SSA
- To: <gcc at gcc dot gnu dot org>
- Subject: Re: More fun with SSA
- From: Alex Rosenberg <alexr at spies dot com>
- Date: Mon, 02 Jul 2001 18:02:49 -0700
on 7/2/01 9:35 AM, law@redhat.com at law@redhat.com wrote:
> Right now our SSA path sits between cse1 and gcse. For various reasons
> I think that's wrong and it would be better if we moved the SSA path
> to an earlier point in the compiler.
Does it make sense to convert from trees directly to SSA?
> d. By moving SSA up in the path with the expectation that it'll work on
> a higher level RTL, the SSA optimizers themselves become much much
> simpler. It would be a shame to have to teach the SSA optimizers how
> to deal with HAVE_cc0, HIGH/LO_SUM, and all the target dependent stuff
> that we find in our typical GCC optimizer.
Inline asm statements present these same difficulties.
+------------------------------------------------------------+
| Alexander M. Rosenberg <mailto:alexr@_spies.com> |
| Nobody cares what I say. Remove the underscore to mail me. |