[all-commits] [llvm/llvm-project] bcb8a1: [WebAssembly] Add support for DWARF type units

[Derek Schuff via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: bcb8a119df210753c5f1a3ac346d49597fef0f51
      https://github.com/llvm/llvm-project/commit/bcb8a119df210753c5f1a3ac346d49597fef0f51
  Author: Derek Schuff <dschuff at chromium.org>
  Date:   2020-10-27 (Tue, 27 Oct 2020)

  Changed paths:
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/test/Driver/debug-options.c
    M llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
    M llvm/lib/MC/MCObjectFileInfo.cpp
    M llvm/lib/MC/WasmObjectWriter.cpp
    A llvm/test/DebugInfo/WebAssembly/dwarf-headers.ll

  Log Message:
  -----------
  [WebAssembly] Add support for DWARF type units

Since Wasm comdat sections work similarly to ELF, we can use that mechanism
to eliminate duplicate dwarf type information in the same way.

Differential Revision: https://reviews.llvm.org/D88603