[all-commits] [llvm/llvm-project] e05edb: [Driver] Unsupport --print-multiarch

[Fangrui Song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e05edb19adbfd1b24f58d583e4b5b4d742f982ee
      https://github.com/llvm/llvm-project/commit/e05edb19adbfd1b24f58d583e4b5b4d742f982ee
  Author: Fangrui Song <i at maskray.me>
  Date:   2022-09-02 (Fri, 02 Sep 2022)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/Driver.cpp
    M clang/test/Driver/print-multiarch.c

  Log Message:
  -----------
  [Driver] Unsupport --print-multiarch

* If GCC is configured with `--disable-multi-arch`, `--print-multiarch` output is an empty line.
* If GCC is configured with `--enable-multi-arch`, `--print-multiarch` output may be a normalized triple or (on Debian, 'vendor' is omitted) `x86_64-linux-gnu`.

The Clang support D101400 just prints the Debian multiarch style triple
unconditionally, but the string is not really expected for non-Debian systems.

AIUI many Linux distributions and non-Linux OSes don't configure GCC with `--enable-multi-arch`.
Instead of getting us in the trouble of supporting all kinds of variants, drop the support as before D101400.

Close https://github.com/llvm/llvm-project/issues/51469

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D133170