[all-commits] [llvm/llvm-project] c65ac2: [MachineScheduler][NFC] Don't swap when we can't c...

[jsji via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: c65ac2ba784dd1bb7778294bd04c143c0181542a
      https://github.com/llvm/llvm-project/commit/c65ac2ba784dd1bb7778294bd04c143c0181542a
  Author: Jinsong Ji <jji at us.ibm.com>
  Date:   2020-01-15 (Wed, 15 Jan 2020)

  Changed paths:
    M llvm/lib/CodeGen/MachineScheduler.cpp

  Log Message:
  -----------
  [MachineScheduler][NFC] Don't swap when we can't cluster

https://reviews.llvm.org/D72706 tried to reduce reordering due to mem op
clustering. This patch avoid doing the swap when we can't cluster.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D72800