[PATCH] D39400: WIP: [MachineOperand][MIR] Add isRenamable to MachineOperand.

[Geoff Berry via Phabricator via llvm-commits]

gberry added a comment.

Ping.
This change should be in pretty good shape now, but the MI interface changes could use a good review.
I had to update quite a few MIR tests to add the 'norename' flag.  A lot of these could probably be fixed by getting the relevant passes to set the norename flag more precisely, but I figured it would be better to do that in separate changes.


https://reviews.llvm.org/D39400