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Re: Problem with PFE approach [Was: Faster compilation speed]

From: Neil Booth <neil at daikokuya dot co dot uk>
To: Devang Patel <dpatel at apple dot com>
Cc: "Timothy J. Wood" <tjw at omnigroup dot com>, Mike Stump <mrs at apple dot com>,gcc at gcc dot gnu dot org
Date: Fri, 16 Aug 2002 22:41:44 +0100
Subject: Re: Problem with PFE approach [Was: Faster compilation speed]
References: <233D8817-B157-11D6-8859-0003938E4E3C@omnigroup.com> <6241E5CC-B15A-11D6-95B0-00039362EF82@apple.com>

Devang Patel wrote:-

> In your previous two queries, what you want from PFE is to discard few 
> things
> based on macros  from precompiled headers. But when PFE restores trees,
> it has gone too far as far as macros are concerned.

The implementation should know what its assumptions are, and if they're
broken recover somehow.  Have you seen KAI's documentation (online)
for their PCH implementation?  It seems like a good solution to me.

Neil.

Follow-Ups:
- Re: Problem with PFE approach [Was: Faster compilation speed]
  - From: Devang Patel

References:
- Problem with PFE approach [Was: Faster compilation speed]
  - From: Timothy J. Wood
- Re: Problem with PFE approach [Was: Faster compilation speed]
  - From: Devang Patel

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