[all-commits] [llvm/llvm-project] e8af24: [Flang][Driver] Add warning support for invalid R_...

[victorkingi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e8af24736ada1ecc2495ada73225370be8a551a5
      https://github.com/llvm/llvm-project/commit/e8af24736ada1ecc2495ada73225370be8a551a5
  Author: Victor Kingi <victor.kingi at arm.com>
  Date:   2023-08-31 (Thu, 31 Aug 2023)

  Changed paths:
    M flang/lib/FrontendTool/ExecuteCompilerInvocation.cpp
    M flang/test/Driver/optimization-remark-invalid.f90

  Log Message:
  -----------
  [Flang][Driver] Add warning support for invalid R_Group options

With the R_Group options, invalid values e.g. '-Rpa' will not emit
a warning like clang. This patch enables warning reporting, as
well as suggestions on what option the user intended to select.

Depends on D158174 and D158436. The former, adds backend
support to R_Group options while the latter, implements
regex support with some tests refactoring that cause a merge
conflict.

Reviewed By: awarzynski

Differential Revision: https://reviews.llvm.org/D158593