[PATCH] [Thumb] Emit Thumb code when the triple arch is "thumb"

[Renato Golin]

Hi Oliver,

I think this is the wrong place to fix it. I've tried that, and I realised that the problem is that the arch in triple gets forgotten by getting the default CPU, then getting the default arch for that CPU, resetting the arch to arm. If you can stop that nonsense, your problem will be fixed.

cheers,
--renato

http://reviews.llvm.org/D5968