[webkit-changes] [WebKit/WebKit] 34288c: [Wasm-GC] Fix exception validation when using GC

[Asumu Takikawa]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 34288ce1365e496e4fb45fdd8919917413d660f1
      https://github.com/WebKit/WebKit/commit/34288ce1365e496e4fb45fdd8919917413d660f1
  Author: Asumu Takikawa <asumu at igalia.com>
  Date:   2023-12-04 (Mon, 04 Dec 2023)

  Changed paths:
    A JSTests/wasm/gc/exception.js
    M Source/JavaScriptCore/wasm/WasmFormat.h
    M Source/JavaScriptCore/wasm/WasmFunctionParser.h
    M Source/JavaScriptCore/wasm/WasmLLIntGenerator.cpp

  Log Message:
  -----------
  [Wasm-GC] Fix exception validation when using GC
https://bugs.webkit.org/show_bug.cgi?id=265678

Reviewed by Justin Michaud.

Adjusts checking of throw arguments and also LLInt catch generation to
work in the presence of GC types.

* JSTests/wasm/gc/exception.js: Added.
(module):
(testExceptionsWithGC):
* Source/JavaScriptCore/wasm/WasmFormat.h:
(JSC::Wasm::isSubtype):
* Source/JavaScriptCore/wasm/WasmFunctionParser.h:
(JSC::Wasm::FunctionParser<Context>::parseExpression):
* Source/JavaScriptCore/wasm/WasmLLIntGenerator.cpp:
(JSC::Wasm::LLIntGenerator::addCatchToUnreachable):

Canonical link: https://commits.webkit.org/271527@main