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Re: big slowdown in egcs-1.1.2->gcc-2.95 on alpha
- To: Joern Rennecke <amylaar@cygnus.co.uk>
- Subject: Re: big slowdown in egcs-1.1.2->gcc-2.95 on alpha
- From: Jeffrey A Law <law@cygnus.com>
- Date: Wed, 11 Aug 1999 02:53:50 -0600
- cc: lucier@math.purdue.edu (Brad Lucier), gcc@gcc.gnu.org, gcc-bugs@gcc.gnu.org, staff@math.purdue.edu, hosking@cs.purdue.edu, wilker@math.purdue.edu, bernds@cygnus.com
- Reply-To: law@cygnus.com
In message <199908070139.CAA18804@phal.cygnus.co.uk>you write:
> Hmm, I wonder if the CONFLICT_P tests take a lot of time, or if the rest
> of the operations in the inner loop cost more.
>
> I wonder if this works:
>
> Thu Aug 5 22:27:15 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
>
> * global.c (prune_preferences): Move some invariants out of the
> inner loop.
This patch is fine, even if it did not make a significant difference for
the compile time slowdown in question. Thanks.
jeff