[all-commits] [llvm/llvm-project] 9272aa: [Driver] Do not generate error about unsupported t...

[Maciej Gabka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9272aa9d08cbbf5b8612c264d5d547fdefae26c7
      https://github.com/llvm/llvm-project/commit/9272aa9d08cbbf5b8612c264d5d547fdefae26c7
  Author: Maciej Gabka <maciej.gabka at arm.com>
  Date:   2023-09-11 (Mon, 11 Sep 2023)

  Changed paths:
    M clang/lib/Driver/Driver.cpp
    A clang/test/Driver/no-action.c

  Log Message:
  -----------
  [Driver] Do not generate error about unsupported target specific options when there is no compiler jobs

The upstream commit: https://reviews.llvm.org/D151590
added a new flag to mark target specific compiler options.

The side effect of it was that in cases when -### or -v is used without any
input file, clang started emitting an error.
It happened like that becasue there is no compilation actions created
which could consume/verify these target specific options.

This patch changes that error to a warning about unused option in situations
when there is no actions and still generates error when there are actions.

Fix for https://github.com/llvm/llvm-project/issues/64958

Differential Revision: https://reviews.llvm.org/D159361