[webkit-changes] [WebKit/WebKit] 504a47: [WGSL] Global consts should be serialized as regul...

[Tadeu Zagallo]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 504a47e5dc40f3f7f7c30e51e248bf1ff9033b2f
      https://github.com/WebKit/WebKit/commit/504a47e5dc40f3f7f7c30e51e248bf1ff9033b2f
  Author: Tadeu Zagallo <tzagallo at apple.com>
  Date:   2023-05-31 (Wed, 31 May 2023)

  Changed paths:
    M Source/WebGPU/WGSL/GlobalVariableRewriter.cpp
    A Source/WebGPU/WGSL/tests/valid/global-constant-vector.wgsl

  Log Message:
  -----------
  [WGSL] Global consts should be serialized as regular globals
https://bugs.webkit.org/show_bug.cgi?id=257496
rdar://110010424

Reviewed by Myles C. Maxfield.

Global consts, which still have references to it, should be serialized similarly
to global private vars. We reuse the same logic in GlobalVariableRewriter, with
the only modification of transforming `const` into `let`, because after PR#14488
consts will be skipped by the code generator.

* Source/WebGPU/WGSL/GlobalVariableRewriter.cpp:
(WGSL::RewriteGlobalVariables::determineUsedGlobals):
(WGSL::RewriteGlobalVariables::insertLocalDefinitions):
* Source/WebGPU/WGSL/tests/valid/global-constant-vector.wgsl: Added.

Canonical link: https://commits.webkit.org/264734@main