[PATCH] Implement ADRP CSE for global symbols

[Jiangning Liu]

Hi Quentin,

I just realized probably I misunderstood your point of using data layout. I
think you are correct the merged size can't be simply accumulated by
indivisual global variable size, because of natural alignment requirement
inside the merged data structure.

Sorry about that and I will change my code soon.

Thanks,
-Jiangning

http://reviews.llvm.org/D3432