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Re: Wow!

From: Uros Bizjak <ubizjak at gmail dot com>
To: Daniel Berlin <dberlin at dberlin dot org>
Cc: GCC <gcc at gcc dot gnu dot org>
Date: Mon, 02 Jul 2007 22:32:10 +0200
Subject: Re: Wow!
References: <46894415.4080903@gmail.com> <4aca3dc20707021137q2d9dd38at42321c71d2bdf11b@mail.gmail.com>

Daniel Berlin wrote:

I'm curious if it was the pre/fre changes.  can you try -fno-tree-pre
and -fno-tree-fre and see if it slows down again?

Adding -fno-tree-pre slows aermod back to 33.942s. Nice optimization. ;)

BTW: I was looking if this speedup was due to yet uncommitted patch for PR 32457 [1], but fortunatelly, it was not the case. However, it would be nice, if the patch [2] for [1] would be committed to SVN to fix 32bit compilation.


[1]: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32457
[2]: http://gcc.gnu.org/ml/gcc-patches/2007-06/msg01941.html

Uros.

Follow-Ups:
- Re: Wow!
  - From: Daniel Berlin

References:
- Wow!
  - From: Uros Bizjak
- Re: Wow!
  - From: Daniel Berlin

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