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Re: Infinite loop in compiling javax/swing/text/html/parser/HTML_401F.list

From: Eric Botcazou <ebotcazou at libertysurf dot fr>
To: Dominique Dhumieres <dominiq at lps dot ens dot fr>
Cc: gcc at gcc dot gnu dot org, ddaney at avtrex dot com
Date: Sun, 28 Oct 2007 17:33:58 +0100
Subject: Re: Infinite loop in compiling javax/swing/text/html/parser/HTML_401F.list
References: <20071027225815.E0F355BBA4@mailhost.lps.ens.fr> <472441A7.3060005@avtrex.com> <20071028103023.ED94D5BBA4@mailhost.lps.ens.fr>

> I never noticed that this part was so long and I was too eager to do
> something else with the CPU. Sorry for the noise.

Don't be sorry, I can reproduce a compilation time surge for libjava on my 
machine (AMD64, 2.4 GHz, 1 GB).  In particular, HTML_401F.o now takes 40 min 
to compile for each version of the library.

The surge comes from the fix for PR tree-optimization/33870 (rev 129675).  
With it, 'make all-target-libjava' takes 261 min user time.  If I revert it,
do a 'make quickstrap' and run the command again, it only takes 109 min.

-- 
Eric Botcazou

Follow-Ups:
- Re: Infinite loop in compiling javax/swing/text/html/parser/HTML_401F.list
  - From: Richard Guenther

References:
- Infinite loop in compiling javax/swing/text/html/parser/HTML_401F.list
  - From: Dominique Dhumieres
- Re: Infinite loop in compiling javax/swing/text/html/parser/HTML_401F.list
  - From: David Daney
- Re: Infinite loop in compiling javax/swing/text/html/parser/HTML_401F.list
  - From: Dominique Dhumieres

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