Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e0c2f4d3e0b37ad876502a0af22773e222cda0ab
https://github.com/WebKit/WebKit/commit/e0c2f4d3e0b37ad876502a0af22773e222cda0ab
Author: Yusuke Suzuki <[email protected]>
Date: 2026-07-21 (Tue, 21 Jul 2026)
Changed paths:
M Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp
M Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
M Source/JavaScriptCore/jit/AssemblyHelpers.h
Log Message:
-----------
[JSC] Add JIT support for BigInt64 / BigUInt64 allocation
https://bugs.webkit.org/show_bug.cgi?id=319872
rdar://182776366
Reviewed by Yijia Huang.
This patch adds JIT support to BigInt64 / BigUInt64 allocations.
We allocate JSBigInt and appropriately configure the content and flags.
data-view-bigint64-byte-swap 32.2400+-0.2569 ^
21.1113+-0.2250 ^ definitely 1.5271x faster
data-view-get-bigint64 53.3261+-0.4363 ^
32.5152+-0.1362 ^ definitely 1.6400x faster
* Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp:
(JSC::DFG::SpeculativeJIT::compile):
* Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp:
(JSC::FTL::DFG::LowerDFGToB3::compileCompareStrictEq):
* Source/JavaScriptCore/jit/AssemblyHelpers.h:
(JSC::AssemblyHelpers::emitAllocateJSBigInt64):
Canonical link: https://commits.webkit.org/317658@main
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