[D-runtime] Precise garbage collection

[Walter Bright]

On 6/21/2013 11:49 PM, Rainer Schuetze wrote:
>
>>
>> The choice of 16 bytes was recommended by "people who know" :) I
>> initially thought 8 would be fine but was told that wasn't a good
>> idea.
>
> Yeah, allocating an array of simd vectors very much require an alignment of 
> 16. And structs with alignment specificatons assume to be allocated with that 
> alignment aswell.

16 byte alignment is critical.