[all-commits] [llvm/llvm-project] 2482b3: [Driver] Always use --as-needed with libunwind

[Petr Hosek via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2482b3a9679ed2d92abbdbae6927e022903acc70
      https://github.com/llvm/llvm-project/commit/2482b3a9679ed2d92abbdbae6927e022903acc70
  Author: Petr Hosek <phosek at google.com>
  Date:   2022-06-29 (Wed, 29 Jun 2022)

  Changed paths:
    M clang/lib/Driver/ToolChains/CommonArgs.cpp
    M clang/test/Driver/compiler-rt-unwind.c

  Log Message:
  -----------
  [Driver] Always use --as-needed with libunwind

With libgcc, we follow the behavior of GCC for backwards compatibility,
only using --as-needed in the non-C++ mode.

With libunwind, there are no backward compatibility requirements so we
can always use --as-needed on all supported platforms.

Differential Revision: https://reviews.llvm.org/D128841