Re: [Boost-bugs] [Boost C++ Libraries] #6782: call_once uses incorrect barrier intrinsic on Visual Studio

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6782: call_once uses incorrect barrier intrinsic on Visual Studio
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-10-04 18:49:45

#6782: call_once uses incorrect barrier intrinsic on Visual Studio
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  Reporter:  ybungalobill@…    |      Owner:  viboes
      Type:  Bugs              |     Status:  assigned
 Milestone:  To Be Determined  |  Component:  thread
   Version:  Boost 1.49.0      |   Severity:  Problem
Resolution:                    |   Keywords:
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Comment (by ned14):

 I believe Boost requires VS2005 minimum now, so I have removed the
 ReadWriteBarrier completely as volatile reads always acquire and volatile
 writes always release. MSVC generates the appropriate acquire-release
 opcodes on ARM, and on x86 they are unnecessary as all loads acquire and
 all stores release. This ticket can now be closed. Niall

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/6782#comment:3>
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