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Re: Errr, GCSE being overly conservative?
- To: Daniel Berlin <dan at cgsoftware dot com>
- Subject: Re: Errr, GCSE being overly conservative?
- From: "Joseph S. Myers" <jsm28 at cam dot ac dot uk>
- Date: Wed, 20 Jun 2001 08:39:34 +0100 (BST)
- cc: <gcc at gcc dot gnu dot org>
On 19 Jun 2001, Daniel Berlin wrote:
> First, if I set MAX_PASSES up to 3, i don't get much of a significant
> time increase (since it only bothers doing anything if it helped the
> last pass anyway), however, I do get somewhat better code. Didn't use
> to happen
> I'm guessing that now that our global const/copy prop has improved, it
> might be worth reinvestigating whether to up MAX_PASSES.
As a first step, making MAX_PASSES use the --param mechanism to make it
easier to experiment with changing it would be worthwhile.
--
Joseph S. Myers
jsm28@cam.ac.uk