[all-commits] [llvm/llvm-project] c70f6e: [Metadata] Introduce MD_pcsections

[Marco Elver via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c70f6e1362e38f36dceca0342490d659aa45a1a5
      https://github.com/llvm/llvm-project/commit/c70f6e1362e38f36dceca0342490d659aa45a1a5
  Author: Marco Elver <elver at google.com>
  Date:   2022-09-06 (Tue, 06 Sep 2022)

  Changed paths:
    A llvm/docs/PCSectionsMetadata.rst
    M llvm/docs/Reference.rst
    M llvm/include/llvm/IR/FixedMetadataKinds.def
    M llvm/include/llvm/IR/MDBuilder.h
    M llvm/lib/IR/MDBuilder.cpp
    M llvm/unittests/IR/MDBuilderTest.cpp

  Log Message:
  -----------
  [Metadata] Introduce MD_pcsections

Introduces MD_pcsections metadata kind. See added documentation for
more details.

Subsequent patches enable propagating PC sections metadata through code
generation to the AsmPrinter.

RFC: https://discourse.llvm.org/t/rfc-pc-keyed-metadata-at-runtime/64191

Reviewed By: dvyukov, vitalybuka

Differential Revision: https://reviews.llvm.org/D130875


  Commit: 42836e283fc58d5cebbcbb2e8eb7619d92fb9c2d
      https://github.com/llvm/llvm-project/commit/42836e283fc58d5cebbcbb2e8eb7619d92fb9c2d
  Author: Marco Elver <elver at google.com>
  Date:   2022-09-06 (Tue, 06 Sep 2022)

  Changed paths:
    M llvm/include/llvm/CodeGen/MachineFunction.h
    M llvm/include/llvm/CodeGen/MachineInstr.h
    M llvm/lib/CodeGen/MachineFunction.cpp
    M llvm/lib/CodeGen/MachineInstr.cpp
    M llvm/unittests/CodeGen/MachineInstrTest.cpp

  Log Message:
  -----------
  [MachineInstr] Allow setting PCSections in ExtraInfo

Provide MachineInstr::setPCSection(), to propagate relevant metadata
through the backend. Use ExtraInfo to store the metadata.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D130876


Compare: https://github.com/llvm/llvm-project/compare/e1ebe476e45a...42836e283fc5