[X86] Add RIP to GR64_TCW64

The MachineVerifier wants to check that the register operands of an
instruction belong to the instruction's register class.  RIP-relative
control flow instructions violated this by referencing RIP.  While this
was fixed for SysV, it was never fixed for Win64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254315 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed