[all-commits] [llvm/llvm-project] 30c288: [DebugInfo] generate btf_tag annotations for DIGlo...

[yonghong-song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 30c288489ae51a3e0819241f367eeae6df2b09e7
      https://github.com/llvm/llvm-project/commit/30c288489ae51a3e0819241f367eeae6df2b09e7
  Author: Yonghong Song <yhs at fb.com>
  Date:   2021-08-26 (Thu, 26 Aug 2021)

  Changed paths:
    M llvm/include/llvm/IR/DIBuilder.h
    M llvm/include/llvm/IR/DebugInfoMetadata.h
    M llvm/lib/AsmParser/LLParser.cpp
    M llvm/lib/Bitcode/Reader/MetadataLoader.cpp
    M llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
    M llvm/lib/IR/AsmWriter.cpp
    M llvm/lib/IR/DIBuilder.cpp
    M llvm/lib/IR/DebugInfoMetadata.cpp
    M llvm/lib/IR/LLVMContextImpl.h
    A llvm/test/Bitcode/attr-btf_tag-diglobalvariable.ll
    M llvm/unittests/IR/MetadataTest.cpp

  Log Message:
  -----------
  [DebugInfo] generate btf_tag annotations for DIGlobalVariable

Generate btf_tag annotations for DIGlobalVariable.
A field "annotations" is introduced to DIGlobalVariable, and
annotations are represented as an DINodeArray, similar to
DIComposite elements. The following example illustrates how
annotations are encoded in IR:
    distinct !DIGlobalVariable(..., annotations: !10)
    !10 = !{!11, !12}
    !11 = !{!"btf_tag", !"a"}
    !12 = !{!"btf_tag", !"b"}

Differential Revision: https://reviews.llvm.org/D106619