[webkit-changes] [WebKit/WebKit] 3cda25: [WGSL] Implement translation of WGSL builtins to MSL

[Dan Glastonbury]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 3cda255e8d24b0b20dd23d812c2fd6412aafdf66
      https://github.com/WebKit/WebKit/commit/3cda255e8d24b0b20dd23d812c2fd6412aafdf66
  Author: Dan Glastonbury <djg at apple.com>
  Date:   2023-02-17 (Fri, 17 Feb 2023)

  Changed paths:
    M Source/WebGPU/WGSL/Metal/MetalFunctionWriter.cpp
    M Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
    A Tools/TestWebKitAPI/Tests/WGSL/MetalGenerationTests.cpp

  Log Message:
  -----------
  [WGSL] Implement translation of WGSL builtins to MSL
https://bugs.webkit.org/show_bug.cgi?id=252459
rdar://problem/105582154

Reviewed by Tadeu Zagallo.

Re-write WGSL @builtin attributes to their equivalent in MSL. Add string
comparison tests for transpiled MSL source to ensure the expect attributes are
written.

* Source/WebGPU/WGSL/Metal/MetalFunctionWriter.cpp:
(WGSL::Metal::FunctionDefinitionWriter::visit):
* Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
* Tools/TestWebKitAPI/Tests/WGSL/MetalGenerationTests.cpp: Added.
(TestWGSLAPI::translate):
(TestWGSLAPI::TEST):

Canonical link: https://commits.webkit.org/260475@main