[llvm] r263325 - [X86] Make sure we do not clobber RBX with cmpxchg when used as a base pointer.

[Joerg Sonnenberger via llvm-commits]

On Sat, Mar 12, 2016 at 02:25:28AM -0000, Quentin Colombet via llvm-commits wrote:
> Author: qcolombet
> Date: Fri Mar 11 20:25:27 2016
> New Revision: 263325
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=263325&view=rev
> Log:
> [X86] Make sure we do not clobber RBX with cmpxchg when used as a base pointer.

Is this an issue we hit in 3.8 as well?

Joerg