[all-commits] [llvm/llvm-project] f645ce: [MachineSink] add more profitable pattern.

[Chen Zheng via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: f645cea8f63e76f4d1ed291da3f61768cbd6abf4
      https://github.com/llvm/llvm-project/commit/f645cea8f63e76f4d1ed291da3f61768cbd6abf4
  Author: Chen Zheng <czhengsz at cn.ibm.com>
  Date:   2020-11-04 (Wed, 04 Nov 2020)

  Changed paths:
    M llvm/lib/CodeGen/MachineSink.cpp
    M llvm/test/CodeGen/PowerPC/sink-down-more-instructions-1.mir
    A llvm/test/CodeGen/PowerPC/sink-down-more-instructions-regpressure-high.mir
    M llvm/test/CodeGen/X86/2007-01-13-StackPtrIndex.ll

  Log Message:
  -----------
  [MachineSink] add more profitable pattern.

Add more profitable sinking patterns if the target bb register pressure
is not too high.

Reviewed By: qcolombet

Differential Revision: https://reviews.llvm.org/D88126