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ZJIT: Don't run Function::eliminate_empty_inline_frames if we didn't inline anything

good first issueGood for newcomersGood for newcomers

Status: Open.

#1035 In Shopify/ruby;

· tekknolagi opened on Aug 27, 2026

ZJIT: LoopInfo could use a simpler single-pass algorithm

Status: Open.

#1034 In Shopify/ruby;

· XrXr opened on Aug 26, 2026

ZJIT: Let's not CheckInterrupts at inlined methods return

Status: Open.

#1033 In Shopify/ruby;

· tekknolagi opened on Aug 24, 2026

ZJIT: Linear scan's parcopy miscompiles cycles among spilled vregs

Status: Open.

#1032 In Shopify/ruby;

· k0kubun opened on Aug 21, 2026

ZJIT: Adaptive Compilation

Status: Open.

#1031 In Shopify/ruby;

· k0kubun opened on Aug 21, 2026

ZJIT: ruby-bench perf burndown

Status: Open.

#1030 In Shopify/ruby;

· k0kubun opened on Aug 13, 2026

ZJIT: Narrow type InlineDepth = usize

Status: Open.

Task

#1028 In Shopify/ruby;

· alanwu-shopify-inc opened on Aug 11, 2026

ZJIT: Remove write barriers on newly-allocated objects

Status: Open.

#1027 In Shopify/ruby;

· tekknolagi opened on Aug 11, 2026

ZJIT: Missing single ractor patchpoint

Status: Open.

#1026 In Shopify/ruby;

· tekknolagi opened on Aug 11, 2026

ZJIT: We use as_heap and fields_obj to mean the same thing sometimes

Status: Open.

#1024 In Shopify/ruby;

· tekknolagi opened on Aug 1, 2026

Virtual Inline Frames

Status: Open.

#1023 In Shopify/ruby;

· nirvdrum opened on Jul 29, 2026

ZJIT: Use finer grain locks for profiling synchronization

Status: Open.

#1022 In Shopify/ruby;

· XrXr opened on Jul 29, 2026