[all-commits] [llvm/llvm-project] dc4259: [c++20] Further extend the set of comparisons brok...

[Richard Smith via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: dc4259d5a38409e65b60266a7df0f03c3b91a151
      https://github.com/llvm/llvm-project/commit/dc4259d5a38409e65b60266a7df0f03c3b91a151
  Author: Richard Smith <richard at metafoo.co.uk>
  Date:   2020-03-20 (Fri, 20 Mar 2020)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/include/clang/Sema/Overload.h
    M clang/lib/Sema/SemaOverload.cpp
    M clang/test/CXX/over/over.match/over.match.funcs/over.match.oper/p3-2a.cpp
    M clang/test/CXX/over/over.match/over.match.funcs/over.match.oper/p9-2a.cpp

  Log Message:
  -----------
  [c++20] Further extend the set of comparisons broken by C++20 that we
accept as an extension.

This attempts to accept the same cases a GCC, plus cases where a
comparison is rewritten to an operator== with an integral but non-bool
return type; this is sufficient to avoid most problems with various
major open-source projects (such as ICU) and appears to fix all but one
of the comparison-related C++20 build breaks in LLVM.

This approach is being pursued for standardization.