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ZJIT: ruby-bench perf burndown

Status: Open.

#1030 In Shopify/ruby;

· k0kubun opened on Aug 13, 2026

ZJIT: prepare_direct_send_args allocates all the time

Status: Open.

#1029 In Shopify/ruby;

· tekknolagi opened on Aug 12, 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: [BUG] inconsistent live slot number

Status: Open.

#1025 In Shopify/ruby;

· k0kubun opened on Aug 6, 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

ZJIT: Big projects 2026

Status: Open.

#1021 In Shopify/ruby;

· tekknolagi opened on Jul 29, 2026

ZJIT: Compile throw instruction

Status: Open.

#1016 In Shopify/ruby;

· k0kubun opened on Jul 15, 2026

ZJIT: Specialize send with non-nil block arg

Status: Open.

#1014 In Shopify/ruby;

· k0kubun opened on Jul 14, 2026