[all-commits] [llvm/llvm-project] 43e246: [LiveIntervals] Replace handleMoveIntoBundle

[Carl Ritson via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 43e2460a89abf6aace35973c682e1723d5f16f10
      https://github.com/llvm/llvm-project/commit/43e2460a89abf6aace35973c682e1723d5f16f10
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2020-04-16 (Thu, 16 Apr 2020)

  Changed paths:
    M llvm/include/llvm/CodeGen/LiveIntervals.h
    M llvm/include/llvm/CodeGen/SlotIndexes.h
    M llvm/lib/CodeGen/LiveIntervals.cpp
    M llvm/lib/CodeGen/SlotIndexes.cpp
    M llvm/unittests/MI/LiveIntervalTest.cpp

  Log Message:
  -----------
  [LiveIntervals] Replace handleMoveIntoBundle

Summary:
The current handleMoveIntoBundle implementation is unusable,
it attempts to access the slot indexes of bundled instructions.
It also leaves bundled instructions with slot indexes assigned.

Replace handleMoveIntoBundle this with a more explicit
handleMoveIntoNewBundle function which recalculates the live
intervals for all instructions moved into a newly formed bundle,
and removes slot indexes from these instructions.

Reviewers: arsenm, MaskRay, kariddi, tpr, qcolombet

Reviewed By: qcolombet

Subscribers: MatzeB, wdng, hiraditya, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77969