[PATCH] Write references to Native format in NativeReferenceIvarsV2.

[Rui Ueyama]

On Mon, Nov 18, 2013 at 1:38 PM, Shankar Easwaran
<shankare at codeaurora.org>wrote:

> Should we use attribute packed too. I am not sure if this will raise
> compatibility concerns across all the machines that build lld.
>

Which attributes are you referring to?


> Thanks
>
> Shankar Easwaran
>
>
> On 11/18/2013 3:05 PM, kledzik at apple.com wrote:
>
>>    Beside compatibility with existing files (which we don't have yet),
>> there is another reason for V1 vs V2: size.  The NativeReferenceIvar is
>> twice the size (8 bytes vs 4 bytes).  There will be a lot of these in
>> files.  We should have both structs.  When a native object file is written,
>> the Writer should see if everything is small enough that just
>> NativeReferenceIvarsV1 structs can be used.  If not, it uses
>> NativeReferenceIvarsV2. The Reader should always handle both.
>>
>> http://llvm-reviews.chandlerc.com/D2217
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>>
>
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