[all-commits] [llvm/llvm-project] 1e0b6c: [LSR] ignore profitable chain when reg num is not ...

[Chen Zheng via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 1e0b6c1df0f2cf8b056244d6ecd5041f7f9ad7a6
      https://github.com/llvm/llvm-project/commit/1e0b6c1df0f2cf8b056244d6ecd5041f7f9ad7a6
  Author: Chen Zheng <czhengsz at cn.ibm.com>
  Date:   2020-10-23 (Fri, 23 Oct 2020)

  Changed paths:
    M llvm/include/llvm/Analysis/TargetTransformInfo.h
    M llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
    M llvm/include/llvm/CodeGen/BasicTTIImpl.h
    M llvm/lib/Analysis/TargetTransformInfo.cpp
    M llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
    M llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
    M llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
    M llvm/test/CodeGen/PowerPC/lsr-profitable-chain.ll

  Log Message:
  -----------
  [LSR] ignore profitable chain when reg num is not major cost.

Reviewed By: samparker

Differential Revision: https://reviews.llvm.org/D89665