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Re: Optimization of conditional access to globals: thread-unsafe?

From: Robert Dewar <dewar at adacore dot com>
To: David Daney <ddaney at avtrex dot com>
Cc: skaller <skaller at users dot sourceforge dot net>, gcc at gcc dot gnu dot org
Date: Fri, 26 Oct 2007 20:27:13 -0400
Subject: Re: Optimization of conditional access to globals: thread-unsafe?
References: <e2e108260710260541n61462585u99de9bc0617720f4@mail.gmail.com> <e2e108260710260620k2a2e21b3t1d6c052f14d36094@mail.gmail.com> <20071026143334.GA5041@moonlight.home> <m38x5pj3ig.fsf@localhost.localdomain> <20071026155101.GB5041@moonlight.home> <016201c817e9$5454edd0$2e08a8c0@CAM.ARTIMI.COM> <20071026161739.GC5041@moonlight.home> <Pine.LNX.4.64.0710261836440.23011@wotan.suse.de> <m33avxfu2i.fsf@localhost.localdomain> <1193443563.15346.96.camel@rosella.wigram> <4722842F.5040003@avtrex.com>

David Daney wrote:

They did use pthreads though. Code correctness in this case does not depend on the number of processor cores.


True, but in practice "real" multiprocessing shows up such bugs
more often ...

David Daney

References:
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: Bart Van Assche
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: Tomash Brechko
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: Ian Lance Taylor
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: Tomash Brechko
- RE: Optimization of conditional access to globals: thread-unsafe?
  - From: Dave Korn
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: Tomash Brechko
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: Michael Matz
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: Ian Lance Taylor
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: skaller
- Re: Optimization of conditional access to globals: thread-unsafe?
  - From: David Daney

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