Matthias Braun 1cd242fe11 CodeGen: Refactor renameDisconnectedComponents() as a pass
Refactor LiveIntervals::renameDisconnectedComponents() to be a pass.
Also change the name to "RenameIndependentSubregs":

- renameDisconnectedComponents() worked on a MachineFunction at a time
  so it is a natural candidate for a machine function pass.

- The algorithm is testable with a .mir test now.

- This also fixes a problem where the lazy renaming as part of the
  MachineScheduler introduced IMPLICIT_DEF instructions after the number
  of a nodes in a region were counted leading to a mismatch.

Differential Revision: http://reviews.llvm.org/D20507

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271345 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-31 22:38:06 +00:00
..
2016-05-26 14:16:52 +00:00
2016-05-27 23:04:28 +00:00
2016-04-18 09:17:29 +00:00
2016-03-01 21:29:33 +00:00