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1. Commits on Oct 16, 2026

   • [JSC] Add isGCSafe flag to BulkMemoryValue and rename MemoryCopy to MemoryMove

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2. Commits on Oct 15, 2026

   • [JSC] B3 foldPathConstants should treat a boolean branch condition as 1 on the taken edge

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   • [JSC] Improve B3 FixSSA by tracking reachable defs

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3. Commits on Oct 13, 2026

   • [JSC] Fold Phis during the B3 ReduceStrength walk and drop the second value walk

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   • Replace NODELETE with LEGACY_NODELETE in JavaScriptCore

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     rniwa

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4. Commits on Oct 12, 2026

   • [B3][Air] Let prologue generators emit late paths

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     syg

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5. Commits on Oct 6, 2026

   • Address Safer C++ warnings in WTF headers

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     cdumez

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6. Commits on Oct 1, 2026

   • [JSC] Remove BasicBlock::appendNewControlValue

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     chicoxyzzy

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7. Commits on Sep 30, 2026

   • [JSC] Do not run simplifyCFG fix-point iteration in B3

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   • [JSC] Mark non-escaping lambda parameters as NOESCAPE

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     cdumez

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8. Commits on Sep 29, 2026

   • [JSC] Optimize Int52 more

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9. Commits on Sep 28, 2026

   • [JSC] Remove fix-point iteration debugging code in B3 ReduceStrength

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   • [JSC] ValueNumbering-based WasmGC optimization in B3::ReduceStrength

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10. Commits on Sep 26, 2026

    • Rename CStringView to UTF8CStringView

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      cdumez

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    • Reduce use of legacyCStringPointer() throughout the codebase

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      cdumez

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    • [JSC] B3 specializeSelect must not clone Phis

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11. Commits on Sep 24, 2026

    • Vector users should prefer shrinking to clearing for reused vectors

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      brentfulgham

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      Brent Fulgham

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    • [JSC] Quick simplification of B3 graph at frontend

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    • Make CString's raw-byte constructors reachable only through CStringWithEncoding on Cocoa

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      cdumez

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    • [JSC] Ensure that we do not have Get / Set in B3->Air lowering

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    • [JSC] Actually remove B3::Variable from B3::Procedure

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12. Commits on Sep 22, 2026

    • [JSC] Add Streaming mode of Liveness adaptor

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    • [JSC] Add a fast bulk-building constructor to IntervalSet

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    • Make CString::newUninitialized() reachable only through CStringWithEncoding

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      cdumez

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13. Commits on Sep 21, 2026

    • [JSC] Extract specialize-select from B3::ReduceStrength

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    • [JSC] Check for interference when moving CAS to Branch in Air

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      syg

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      robert-jenner

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    • [JSC] Avoid calling hasNonArgEffects when unnecessary

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    • [JSC] Air FixObviousSpills state should track aliased regs

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    • Carry the encoding in the type for JSC's option strings and JIT-dump object strings

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      cdumez

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14. Commits on Sep 13, 2026

    • [JSC] Use Vector+InlineCapacity in LiveRange in AirAllocateRegistersByGreedy

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15. Commits on Sep 12, 2026

    • Rename toCString() to toUTF8CString() and stop PrintStream from printing an untyped CString

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      cdumez

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16. Commits on Sep 11, 2026

    • [JSC] Make Air stack slot liveness sparse in instructions

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17. Commits on Sep 10, 2026

    • [JSC] Lower Mul(Neg(n), m) to MNEG/FNMUL

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18. Commits on Sep 9, 2026

    • [JSC] Use B3 SIMD scalar types in B3Validate

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      Xeonacid

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19. Commits on Sep 7, 2026

    • [JSC] Folding `Shl` into `WasmAddress` index form can use a locked value's `Tmp`

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