MFC r259498:
MFC r259498:

Pull in r197399 from upstream clang trunk:

  Add bit_FXSAVE as an alias for bit_FXSR, for gcc compat.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase