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Re: [PATCH] sort/multicall patch - cleanup f_sort.t failures

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From:
Jim Cromie
Date:
November 7, 2005 18:20
Subject:
Re: [PATCH] sort/multicall patch - cleanup f_sort.t failures
Message ID:
43700B46.3020701@gmail.com
Robin Houston wrote:

>Jim Cromie wrote:
>  
>
>>I dunno why the /COMMON flag gets added, nor why it also affects
>>B::Concise renderings on non-threaded builds, but it appears real.
>>    
>>
>
>It's nothing to do with threads.  If the COMMON flag is set on an
>aassign op, it means that a temporary copy of the right-hand side is
>made. It makes more sense to think of the OPpASSIGN_COMMON flag as
>disabling a dangerous optimisation: in essence, if you have
>
>
>  
>
...

thanks Robin, that clears it up.
I cant resist a National-Enquirer paraphrase:
OA_DANGEROUS sorts more /COMMON than previously understood.
;-)

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