[all-commits] [llvm/llvm-project] 2222e2: [HLSL] Add HLSL 202y language mode (#108437)

[Chris B via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2222e27d9e1438b0c723d46c62b1364391b58311
      https://github.com/llvm/llvm-project/commit/2222e27d9e1438b0c723d46c62b1364391b58311
  Author: Chris B <chris.bieneman at me.com>
  Date:   2024-09-13 (Fri, 13 Sep 2024)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticGroups.td
    M clang/include/clang/Basic/DiagnosticParseKinds.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/include/clang/Basic/LangOptions.h
    M clang/include/clang/Basic/LangStandards.def
    M clang/include/clang/Driver/Options.td
    M clang/lib/Basic/LangOptions.cpp
    M clang/lib/Basic/LangStandards.cpp
    M clang/lib/Parse/ParseExprCXX.cpp
    M clang/lib/Sema/DeclSpec.cpp
    M clang/test/ParserHLSL/group_shared.hlsl
    M clang/test/ParserHLSL/group_shared_202x.hlsl
    M clang/test/ParserHLSL/invalid_inside_cb.hlsl
    M clang/test/Preprocessor/predefined-macros-hlsl.hlsl
    M clang/test/SemaHLSL/group_shared.hlsl
    M clang/test/SemaHLSL/group_shared_202x.hlsl

  Log Message:
  -----------
  [HLSL] Add HLSL 202y language mode (#108437)

This change adds a new HLSL 202y language mode. Currently HLSL 202y is
planned to add `auto` and `constexpr`.

This change updates extension diagnostics to state that lambadas are a
"clang HLSL" extension (since we have no planned release yet to include
them), and that `auto` is a HLSL 202y extension when used in earlier
language modes.

Note: This PR does temporarily work around some differences between HLSL
2021 and 202x in Clang by changing test cases to explicitly specify
202x. A subsequent PR will update 2021's language flags to match 202x.



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