[PATCH] [ARM64] Enable alignment control option in front-end for ARM64 - Clang.

[Tim Northover]

Hi Kevin,

I think this looks reasonable, given current implementations. It might be better to combine into a completely generic backend "strict-align" option, particularly if more targets come along wanting the functionality. But I'm not really sure where such a thing should live.

Cheers.

Tim.

http://reviews.llvm.org/D3466