Re: [Boost-bugs] [Boost C++ Libraries] #2885: [smart_ptr] g++/MIPS support for lockless sp_counted_base

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #2885: [smart_ptr] g++/MIPS support for lockless sp_counted_base
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-03-24 21:52:14

#2885: [smart_ptr] g++/MIPS support for lockless sp_counted_base
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  Reporter:  David Joyner <david.joyner_at_[hidden]>  |       Owner:  pdimov      
      Type:  Patches                                  |      Status:  assigned    
 Milestone:  Boost 1.39.0                             |   Component:  smart_ptr   
   Version:  Boost 1.38.0                             |    Severity:  Optimization
Resolution:                                           |    Keywords:              
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Comment(by David Joyner <david.joyner_at_[hidden]>):

 No good reason.  ;)

 This inline assembly was originally written for atomic subtraction rather
 than atomic decrement, thus the extra input parameter to the __asm__
 block.  I believe GNU's as converts "subu %0, %1, 1" to "addiu %0, %1, -1"
 on the fly however I'm okay with changing this to addiu.

 Would you like to me to reattach the patch?

 As far as g++/MIPS support for `__sync`, the newest g++/MIPS toolchain I
 have access to is 4.1.2 and they are not implemented there.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2885#comment:3>
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