[cfe-dev] Is this an over alignment bug for ARM?

[Zhao, Weiming via cfe-dev]

Hi Tim,

Thanks for the answer.
So "new" or malloc should guarantee that it returns  a at-least 8-byte 
aligned "this" pointer, is that correct?

Thank,s
Weiming


On 2/18/2016 2:25 PM, Tim Northover wrote:
> Hi Weiming,
>
> On 18 February 2016 at 12:56, Zhao, Weiming via cfe-dev
> <cfe-dev at lists.llvm.org> wrote:
>> I'm debugging an Android code which caused data violation fault and it seems Clang is generating a store with over alignment.
> I think that's valid. The "long long" member means that the entire
> class must be 8-byte aligned (under AAPCS), in particular the this
> pointer itself. And then there are 4 bytes of padding between mBaseLen
> and mOffset to ensure mOffset actually is aligned.
>
> Or am I misreading something?
>
> Cheers.
>
> Tim.

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