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Re: [PATCH, middle-end]: Fix PR tree-optimization/{31966, 32533}

Richard Guenther wrote:

>> 2007-07-16  Richard Guenther  <rguenther@suse.de>
>>             Uros Bizjak  <ubizjak@gmail.com>
>>
>>         * tree-if-conv.c (find_phi_replacement_condition): Unshare
>> "*cond"
>>         before forcing it to gimple operand.

I don't fully understand the consequences of this proposed patch for
4.2.  Without checking enabled, do we have a real problem without this
patch?  In other words, what problem is solved by the patch, for users
building with checking disabled?  (These are not rhetorical questions; I
just don't understand fully.)

Thanks,

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713
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