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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 30, 2026

• [JSC] Inline-allocate cells for `NewWeakMap` and `NewWeakSet`

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  sosukesuzuki

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• [CMake] Unified-source hygiene fixes for larger bundles

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  geoffreygaren

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Commits on May 27, 2026

• [JSC] Fix AirFixObviousSpills modeling of early defs

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  dhecht

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  JonWBedard

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Commits on May 26, 2026

• Fix dominance analysis in B3CanonicalizePrePostIncrements

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  asworkjsc

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  JonWBedard

  committed
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Commits on May 15, 2026

• [JSC] Cache result of Symbol.prototype.toString

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  Constellation

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Commits on May 14, 2026

• [GLIB] Non-unified build fixes for May 13th 2026

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  csaavedra

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• [JSC] Do not allocate promise reaction when it is initial `then` calls and one handler attachment

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  Constellation

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Commits on May 7, 2026

• Optimize JavaScriptCore #includes

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  geoffreygaren

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Commits on May 6, 2026

• [JSC] GreedyRegAlloc: Add loop-aware live range splitting (disabled by default)

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  dhecht

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Commits on May 5, 2026

• REGRESSION: WebAssembly SIMD produces incorrect result on x86_64 Linux (argon2id hash mismatch)

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  Constellation

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• [JSC] Remove stale comment in B3::Value

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  heimskr

  authored and

  Constellation

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Commits on May 3, 2026

• [JSC] Add multiply-accumulate instruction selection

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  Constellation

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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 May 1, 2026

• Unreviewed, reverting 312318@main (7a38dc3cf79c)

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  dhecht

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Commits on Apr 30, 2026

• [JSC] Optimize bit-rotate idiom in B3

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  Constellation

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Commits on Apr 29, 2026

• [JSC] GreedyRegAlloc: Add loop-aware live range splitting (disabled by default)

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  dhecht

  committed
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Commits on Apr 27, 2026

• [JSC] Inline tight loop of String#localeCompare in FTL

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  Constellation

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• [JSC] Codegen: emit basenames, not absolute paths, in "generated from" comments

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  sheeparegreat

  committed
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• [Build Speed] Fix compilation issues in JSC headers

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  jernoble

  committed
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Commits on Apr 26, 2026

• [JSC] OMG should only emit WasmBoundsCheck overflow guard for Int64 pointers

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  sosukesuzuki

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Commits on Apr 23, 2026

• [JSC] Don't assert on self comparison in buildCoalescingGroups

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  dhecht

  committed
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Commits on Apr 22, 2026

• [JSC] Lower `BitAnd(SShr(x, lsb), mask)` to `ubfx` for ARM64

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  sosukesuzuki

  committed
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Commits on Apr 21, 2026

• [JSC] Run lowerAfterRegAlloc before fixObviousSpills

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  dhecht

  committed
  020b68a

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• [JSC] GreedyRegAlloc: Split SplitMetadata into per-kind types

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  dhecht

  committed
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• [Build Speed] Minimize includes in CodeBlock.h, JSCJSValue.h, JSCJSValueInlines.h, and VM.h

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  jernoble

  committed
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• [JSC] Implement relaxed Wasm SIMD

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  Constellation

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Commits on Apr 20, 2026

• [JSC] GreedyRegAlloc: Add typed cost wrappers

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  dhecht

  committed
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• [JSC] Add per-function dump filtering to greedy register allocator

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  dhecht

  committed
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Commits on Apr 17, 2026

• [Build Speed] Reduce the cost of StructureInlines.h

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  jernoble

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Commits on Apr 16, 2026

• Implement load and store for Memory64 in the OMG tier

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  colelao

  committed
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Commits on Apr 15, 2026

• [JSC] Add `VectorShr(VectorZipLower(x, x), 8)` strength reduction

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  Constellation

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Commits on Apr 14, 2026

• [JSC] Add 32bit unsigned integer division optimization in B3

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  Constellation

  committed
  15c111a

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• [JSC] Do CSE with dominating WasmStructGet and WasmArrayGet

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  Constellation

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Commits on Apr 11, 2026

• Unreviewed, reverting 310871@main.

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  webkit-commit-queue

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  Constellation

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