[all-commits] [llvm/llvm-project] 873ea4: [mlir][llvm] Rename void debug type to null

[Christian Ulmann via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 873ea45115a8e5ed1065d6aaad8f41fe6120cac8
      https://github.com/llvm/llvm-project/commit/873ea45115a8e5ed1065d6aaad8f41fe6120cac8
  Author: Christian Ulmann <christian.ulmann at nextsilicon.com>
  Date:   2023-02-16 (Thu, 16 Feb 2023)

  Changed paths:
    M mlir/include/mlir/Dialect/LLVMIR/LLVMAttrDefs.td
    M mlir/lib/Dialect/LLVMIR/IR/LLVMAttrs.cpp
    M mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp
    M mlir/lib/Target/LLVMIR/DebugImporter.cpp
    M mlir/lib/Target/LLVMIR/DebugTranslation.cpp
    M mlir/lib/Target/LLVMIR/DebugTranslation.h
    M mlir/test/Dialect/LLVMIR/debuginfo.mlir
    M mlir/test/Dialect/LLVMIR/invalid.mlir
    M mlir/test/Target/LLVMIR/Import/debug-info.ll
    M mlir/test/Target/LLVMIR/llvmir-debug.mlir

  Log Message:
  -----------
  [mlir][llvm] Rename void debug type to null

This commit renames the "di_void_result_type" to "di_null_type" as LLVM
does use null not exclusively for void types. An added test demonstrates
this for variadic function declarations, whose DISubroutine indicates the
start of variadic types with `null`.

Reviewed By: gysit

Differential Revision: https://reviews.llvm.org/D144109