[webkit-changes] [WebKit/WebKit] a67312: [JSC] Clean up wasm initialization code

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: a67312798948b7fb4d775ba29de566f51de81dd6
      https://github.com/WebKit/WebKit/commit/a67312798948b7fb4d775ba29de566f51de81dd6
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2025-02-01 (Sat, 01 Feb 2025)

  Changed paths:
    M Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp
    M Source/JavaScriptCore/jit/Width.h
    M Source/JavaScriptCore/wasm/WasmCallingConvention.h
    M Source/JavaScriptCore/wasm/WasmFormat.h
    M Source/JavaScriptCore/wasm/WasmFunctionIPIntMetadataGenerator.h
    M Source/JavaScriptCore/wasm/WasmFunctionParser.h
    M Source/JavaScriptCore/wasm/WasmIPIntGenerator.cpp
    M Source/JavaScriptCore/wasm/WasmOperations.cpp
    M Source/JavaScriptCore/wasm/WasmTypeDefinition.cpp
    M Source/JavaScriptCore/wasm/WasmTypeDefinition.h
    M Source/JavaScriptCore/wasm/js/JSToWasm.cpp
    M Source/JavaScriptCore/wasm/js/WasmToJS.cpp

  Log Message:
  -----------
  [JSC] Clean up wasm initialization code
https://bugs.webkit.org/show_bug.cgi?id=286281
rdar://143288327

Reviewed by Justin Michaud.

This patch carefully analyzes wasm startup time and optimizes costly
operations in that.

* Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp:
(JSC::DFG::StrengthReductionPhase::handleNode):
* Source/JavaScriptCore/jit/Width.h:
(JSC::bytesForWidth):
* Source/JavaScriptCore/wasm/WasmCallingConvention.h:
(JSC::Wasm::CallInformation::computeResultsOffsetList):
(JSC::Wasm::WasmCallingConvention::callInformationFor const):
(JSC::Wasm::JSCallingConvention::callInformationFor const):
(JSC::Wasm::CCallingConventionArmThumb2::callInformationFor const):
(): Deleted.
* Source/JavaScriptCore/wasm/WasmFormat.h:
(JSC::Wasm::isSubtypeSlow):
(JSC::Wasm::isSubtype):
* Source/JavaScriptCore/wasm/WasmFunctionIPIntMetadataGenerator.h:
* Source/JavaScriptCore/wasm/WasmFunctionParser.h:
(JSC::Wasm::FunctionParser<Context>::parseIndexForLocal):
* Source/JavaScriptCore/wasm/WasmIPIntGenerator.cpp:
(JSC::Wasm::IPIntGenerator::addSwitch):
(JSC::Wasm::IPIntGenerator::addCallCommonData):
(JSC::Wasm::IPIntGenerator::addTailCallCommonData):
* Source/JavaScriptCore/wasm/WasmOperations.cpp:
(JSC::Wasm::JSC_DEFINE_JIT_OPERATION):
* Source/JavaScriptCore/wasm/WasmTypeDefinition.cpp:
(JSC::Wasm::FunctionParameterTypes::translate):
(JSC::Wasm::TypeInformation::TypeInformation):
* Source/JavaScriptCore/wasm/WasmTypeDefinition.h:
(JSC::Wasm::FunctionSignature::argumentsOrResultsIncludeI64 const):
(JSC::Wasm::FunctionSignature::setArgumentsOrResultsIncludeI64):
* Source/JavaScriptCore/wasm/js/JSToWasm.cpp:
(JSC::Wasm::FunctionSignature::jsToWasmICEntrypoint const):
* Source/JavaScriptCore/wasm/js/WasmToJS.cpp:
(JSC::Wasm::wasmToJS):

Canonical link: https://commits.webkit.org/289682@main



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