Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4dbfab2693adfbccc72b683100dbf466e6640792
https://github.com/WebKit/WebKit/commit/4dbfab2693adfbccc72b683100dbf466e6640792
Author: Yusuke Suzuki <[email protected]>
Date: 2026-09-02 (Wed, 02 Sep 2026)
Changed paths:
M Source/JavaScriptCore/wasm/WasmConstExprGenerator.cpp
M Source/JavaScriptCore/wasm/js/JSWebAssemblyInstance.cpp
M Source/JavaScriptCore/wasm/js/JSWebAssemblyInstance.h
M Source/JavaScriptCore/wasm/js/WebAssemblyModuleRecord.cpp
M Source/JavaScriptCore/wasm/js/WebAssemblyModuleRecord.h
Log Message:
-----------
[JSC] Do not copy const-expr byte sequence in wasm
https://bugs.webkit.org/show_bug.cgi?id=323269
rdar://186519182
Reviewed by Mark Lam.
1. evaluateExtendedConstExpr was copying Vector<uint8_t> wasm const-expr
bytes. Stop doing so.
2. We also clean up evaluateConstantExpression code so that wasm module
uses JSWebAssemblyInstance::evaluateConstantExpression instead of its
own (very similar) method.
* Source/JavaScriptCore/wasm/WasmConstExprGenerator.cpp:
(JSC::Wasm::evaluateExtendedConstExpr):
* Source/JavaScriptCore/wasm/js/JSWebAssemblyInstance.cpp:
(JSC::JSWebAssemblyInstance::evaluateConstantExpression):
(JSC::JSWebAssemblyInstance::ensureConstantExpressionValue):
* Source/JavaScriptCore/wasm/js/JSWebAssemblyInstance.h:
* Source/JavaScriptCore/wasm/js/WebAssemblyModuleRecord.cpp:
(JSC::WebAssemblyModuleRecord::initializeExports):
(JSC::WebAssemblyModuleRecord::evaluateConstantExpression):
(JSC::WebAssemblyModuleRecord::evaluate):
* Source/JavaScriptCore/wasm/js/WebAssemblyModuleRecord.h:
Canonical link: https://commits.webkit.org/320393@main
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