On Wed, Mar 13, 2013 at 11:20 AM, Jean-Daniel Dupas
<[email protected]> wrote:
>
> Le 13 mars 2013 à 04:10, John McCall <[email protected]> a écrit :
>
>> Author: rjmccall
>> Date: Tue Mar 12 22:10:54 2013
>> New Revision: 176924
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=176924&view=rev
>> Log:
>> Tighten up the rules for precise lifetime and document
>> the requirements on the ARC optimizer.
>>
>> rdar://13407451
>>
>
> …
>
>> +
>> + Specifically, ARC is sometimes permitted to optimize ``release``
>> + operations in ways which might cause an object to be deallocated
>> + before it would otherwise be. Without this, it would be almost
>> + impossible to eliminate any ``retain``/``release`` pairs. For
>> + example, consider the following code:
>> +
>> + .. code-block:: objc
>> + id x = _ivar;
>> + [x foo];
>> +
>
> For some reason, this code block does not appears in the generated html at
> "http://clang.llvm.org/docs/AutomaticReferenceCounting.html";
> I'm not familiar with the rst format though, so I can tell you what is wrong
> here.
Fixed in r176948.
Dmitri
--
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <[email protected]>*/
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