[all-commits] [llvm/llvm-project] 80e6af: [PowerPC] common chains to reuse offsets to reduce...

[Chen Zheng via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 80e6aff6bbad9a5959f8491b616438cc8792f32a
      https://github.com/llvm/llvm-project/commit/80e6aff6bbad9a5959f8491b616438cc8792f32a
  Author: Chen Zheng <czhengsz at cn.ibm.com>
  Date:   2021-10-25 (Mon, 25 Oct 2021)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCLoopInstrFormPrep.cpp
    M llvm/test/CodeGen/PowerPC/common-chain.ll

  Log Message:
  -----------
  [PowerPC] common chains to reuse offsets to reduce register pressure.

Add a new preparation pattern in PPCLoopInstFormPrep pass to reduce register
pressure.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D108750