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Commits on Jun 4, 2026

• [Wasm] Reduce FuncRefTable entry size

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  kmiller68

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Commits on May 7, 2026

• [JSC] Move aINT / mINT / uINT bytecode under RTT

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  Constellation

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• [JSC] IPInt slow path for `memory.atomic.notify` truncates the Memory64 pointer and offset to 32 bits

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  sosukesuzuki

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• [JSC][WASM][Debugger] Fix STW deadlocks when VM blocks in memory.atomic.wait or WebCore operations

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  hyjorc1

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• [Wasm] Use a lazy restore frame when returning from tail calls

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  kmiller68

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Commits on May 4, 2026

• Reland memory64 bulk memory operations in OMG tier

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  colelao

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Commits on May 2, 2026

• [JSC] Fix wasm type parsing regression by making RTT formal canonicalized types

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  Constellation

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Commits on Apr 21, 2026

• Refactor wasm implementation after multimemory support was added

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  asworkjsc

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  hyjorc1

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Commits on Apr 20, 2026

• Further reduce use of jsCast<>()

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  cdumez

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Commits on Apr 18, 2026

• Replace use of jsSecureCast<>() with downcast<>()

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  cdumez

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Commits on Apr 16, 2026

• [JSC] Remove PL from IPInt

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  Constellation

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• [Wasm] Unify IPInt's prepare_call and prepare_call_indirect paths

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  kmiller68

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Commits on Apr 10, 2026

• Add wasm IPInt support for SIMD and atomic instructions

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  asworkjsc

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  Mark Lam

  committed
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Commits on Apr 9, 2026

• [JSC][WASM][Debugger] Notify LLDB when a new WebAssembly module is dynamically instantiated

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  hyjorc1

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Commits on Apr 4, 2026

• [JSC] Wasm SectionParser should store expanded TypeDefinition

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  Constellation

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Commits on Apr 2, 2026

• Add wasm multimemory support to BBQ/OMG SIMD and atomics

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  asworkjsc

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  kmiller68

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• [JSC][WASM][Debugger] Extend WASM debugger trap interception to all IPInt exception sites

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  hyjorc1

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Commits on Mar 27, 2026

• [JSC][WASM][Debugger] Make the WASM debugger stop at unreachable traps

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  hyjorc1

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• [JSC] Introduce Realm-less Objects

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  Constellation

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Commits on Mar 24, 2026

• Add wasm multimemory support to base instructions

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  asworkjsc

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  kmiller68

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Commits on Feb 25, 2026

• [JSC] Use FrameTracer in IPInt memory_grow operation

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  syg

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Commits on Feb 19, 2026

• Adopt `NODELETE` annotation in more places in JavaScriptCore/

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  cdumez

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Commits on Feb 13, 2026

• Address Safer CPP regression in WasmIPIntSlowPaths

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  annevk

  committed
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Commits on Feb 10, 2026

• [JSC] Do stack check on IPInt->BBQ loop OSR entry

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  syg

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Commits on Feb 6, 2026

• [JSC] Use FrameTracer in wasm table_init operations

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  syg

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Commits on Jan 29, 2026

• [JSC][WASM][Debugger] Restrict WebAssembly debugger to macOS ARM64 only

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  hyjorc1

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Commits on Jan 27, 2026

• [JSC] Null out vm.topCallFrame in Wasm GC IPInt slow paths if needed

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  syg

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Commits on Jan 15, 2026

• ThrowScopes should not be able to clear termination exceptions

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  kmiller68

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Commits on Jan 12, 2026

• [JSC] Add --traceWasmIPIntExecution option

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  syg

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Commits on Jan 6, 2026

• [JSC][Wasm][Debugger] Implement multi-VM stop-the-world debugging

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  hyjorc1

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Commits on Dec 20, 2025

• Use WTF::move() instead of WTFMove() macro in Source/JavaScriptCore

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  cdumez

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Commits on Dec 18, 2025

• [JSC] Wasm: fix exceptions with inlining between SIMD and non-SIMD functions

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  dhecht

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Commits on Dec 7, 2025

• Add support for Memory64 in WebAssembly in IPInt Tier

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  colelao

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Commits on Nov 13, 2025

• [JSC] Wasm: Fix OMG exceptions with nested catch

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  dhecht

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  Constellation

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Commits on Nov 4, 2025

• [JSC] Collect execution count in Wasm::BaselineData

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  Constellation

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