[webkit-changes] [WebKit/WebKit] 3dcbd2: [JSC] Avoid Vector allocation if possible for Type...

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 3dcbd27bc35924ca17a4d5c3211d2f99a7f4669c
      https://github.com/WebKit/WebKit/commit/3dcbd27bc35924ca17a4d5c3211d2f99a7f4669c
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2023-08-10 (Thu, 10 Aug 2023)

  Changed paths:
    M Source/JavaScriptCore/wasm/WasmBBQJIT.cpp
    M Source/JavaScriptCore/wasm/WasmFunctionIPIntMetadataGenerator.cpp
    M Source/JavaScriptCore/wasm/WasmFunctionIPIntMetadataGenerator.h
    M Source/JavaScriptCore/wasm/WasmIPIntGenerator.cpp
    M Source/JavaScriptCore/wasm/WasmSectionParser.cpp
    M Source/JavaScriptCore/wasm/WasmTypeDefinition.cpp
    M Source/JavaScriptCore/wasm/WasmTypeDefinition.h
    M Source/JavaScriptCore/wasm/js/WebAssemblyTagConstructor.cpp

  Log Message:
  -----------
  [JSC] Avoid Vector allocation if possible for Types etc. in Wasm parsers
https://bugs.webkit.org/show_bug.cgi?id=260061
rdar://113733001

Reviewed by Alex Christensen.

We should use Vector<Type, 16> to avoid frequent allocation and deallocation of memory.
And we also use uncheckedAppend for pre-allocated Vector.

* Source/JavaScriptCore/wasm/WasmBBQJIT.cpp:
(JSC::Wasm::BBQJIT::emitCCall):
* Source/JavaScriptCore/wasm/WasmFunctionIPIntMetadataGenerator.cpp:
(JSC::Wasm::FunctionIPIntMetadataGenerator::addReturnData):
* Source/JavaScriptCore/wasm/WasmFunctionIPIntMetadataGenerator.h:
* Source/JavaScriptCore/wasm/WasmIPIntGenerator.cpp:
(JSC::Wasm::IPIntGenerator::addEndToUnreachable):
(JSC::Wasm::IPIntGenerator::addCallCommonData):
* Source/JavaScriptCore/wasm/WasmSectionParser.cpp:
(JSC::Wasm::SectionParser::parseFunctionType):
* Source/JavaScriptCore/wasm/WasmTypeDefinition.cpp:
(JSC::Wasm::TypeDefinition::replacePlaceholders const):
(JSC::Wasm::TypeInformation::typeDefinitionForFunction):
* Source/JavaScriptCore/wasm/WasmTypeDefinition.h:
* Source/JavaScriptCore/wasm/js/WebAssemblyTagConstructor.cpp:
(JSC::JSC_DEFINE_HOST_FUNCTION):

Canonical link: https://commits.webkit.org/266812@main