[all-commits] [llvm/llvm-project] c4a267: [Clang] Simplify unifying target features

[Joseph Huber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c4a2674e21c4f5ffd46f90982ce3c3d952018e66
      https://github.com/llvm/llvm-project/commit/c4a2674e21c4f5ffd46f90982ce3c3d952018e66
  Author: Joseph Huber <jhuber6 at vols.utk.edu>
  Date:   2022-06-14 (Tue, 14 Jun 2022)

  Changed paths:
    M clang/lib/Driver/ToolChains/CommonArgs.cpp
    M clang/lib/Driver/ToolChains/CommonArgs.h

  Log Message:
  -----------
  [Clang] Simplify unifying target features

This patch simplifies how we unify target features. Now we simply
iterate the input in reverse and only insert the feature if it hasn't
been seen yet. The only reason we need to reverse this at the end is to
keep the features in order for the existing tests.

Reviewed By: tra

Differential Revision: https://reviews.llvm.org/D127707