This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [tree-ssa][PATCH]: Speed up SSAPRE, start Load PRE

From: Daniel Berlin <dberlin at dberlin dot org>
To: Daniel Berlin <dberlin at dberlin dot org>
Cc: gcc-patches at gcc dot gnu dot org
Date: Thu, 23 Oct 2003 22:53:38 -0400
Subject: Re: [tree-ssa][PATCH]: Speed up SSAPRE, start Load PRE
References: <640FE91E-05BC-11D8-B0E7-000A95AF1FAE@dberlin.org>

On Oct 23, 2003, at 8:52 PM, Daniel Berlin wrote:

This patch speeds up and reduces the memory usage of SSAPRE.
On one testcase, it went from 100 seconds to 4 on my Macintosh.
It also starts to implement load PRE Load PRE on non-indirect refs now works (and bootstraps and passes regtests), but i've disabled it until i get it *all* working at once (it currently miscompiles stage2 slightly).

I fixed a few bugs along the way that others had pointed out.

We also now keep and print memory statistics.

Bootstrapped and regtested on 686-pc-linux-gnu (and powerpc-darwin-7.0.0 with a few darwin config changes).

Ignore the config/ changes in the patch. I didn't commit them (obviously), I just forgot to edit them out of the diff after i diffed it on the powerpc.

References:
- [tree-ssa][PATCH]: Speed up SSAPRE, start Load PRE
  - From: Daniel Berlin

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]