Denis Antrushin ef658ebd62 MIR Statepoint refactoring. Part 1: Basic MI level changes. ...

Basic support for variadic-def MIR Statepoint:
- Change TableGen STATEPOINT description to variadic out list
  (For self-documentation purpose; by itself it does not affect
  code generation in any way).
- Update StatepointOpers helper class to handle variadic defs.
- Update MachineVerifier to properly handle them, too.

With this change, new Statepoint instruction can be passed through
backend (excluding ISEL) without errors.

Full change set is available at D81603.
Reviewed By: reames
Differential Revision: https://reviews.llvm.org/D81645

2020-07-17 00:57:21 +07:00

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