[all-commits] [llvm/llvm-project] b98b17: [XCOFF] Enable symbol alias for AIX

[jasonliudev via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b98b1700efe7709e7bf7eaec25cfbfd9fb490357
      https://github.com/llvm/llvm-project/commit/b98b1700efe7709e7bf7eaec25cfbfd9fb490357
  Author: jasonliu <jasonliu.development at gmail.com>
  Date:   2020-07-22 (Wed, 22 Jul 2020)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h
    M llvm/include/llvm/Target/TargetLoweringObjectFile.h
    M llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
    M llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
    M llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
    M llvm/lib/Target/PowerPC/PPCISelLowering.cpp
    A llvm/test/CodeGen/PowerPC/aix-alias-unsupported.ll
    M llvm/test/CodeGen/PowerPC/aix-alias.ll

  Log Message:
  -----------
  [XCOFF] Enable symbol alias for AIX

Summary:
AIX assembly's .set directive is not usable for aliasing purpose.
We need to use extra-label-at-defintion strategy to generate symbol
aliasing on AIX.

Reviewed By: DiggerLin, Xiangling_L

Differential Revision: https://reviews.llvm.org/D83252