[PATCH] [WIP] Use dynamic alloca for stack variables in ASan.

[Alexey Samsonov]

>>! In D6465#19, @kubabrecka wrote:
>> Disable dynamic-alloca by default for now.
> 
> Alexey, what is your plan about having this on/off by default? Is it off by default just for now?

I plan to make this on by default, after more testing.

Kostya, do you have more comments about the current version of the patch?

> 
> Thanks,
> Kuba

http://reviews.llvm.org/D6465