Files
Malte Ubl 439964a693 Inline the small-object allocator into emitted constructors and releases
Emitted record and class constructors called scr_rt_calloc/scr_cyc_alloc
with a constant size, so the size class, the zeroing length and the
collector header setup were recomputed per object behind a call (plus an
empty scr_obj_alloc_note call and a variable-length memset). llvm/alloc.ts
now emits the fast paths inline: pop the class free list (clearing only
the bytes the helper does not store itself) or bump, with the old calls as
the cold slow path. Releases inline the weak-dispose hook check, the live
count, and the free-list push; blocks outside the reservation still go to
scr_rt_free.

The emitted IR does not know which runtime it links against (the sanitized
lane only differs at link time), so the runtime now defines scr_sa in
every build. Where the allocator is compiled out (ASan, SCR_RC_AUDIT,
wasm32, Windows, 32-bit, thread-instanced libraries) it stays all-zero and
the inline paths always take the slow path, which keeps the RC-audit
object notes. ScrSaState's layout is pinned with static asserts. Inline
emission is additionally gated off for 32-bit, WASI, Windows triples and
thread-instanced libraries.

Runtime callers with hot constant-size allocations (union boxes, arrays,
boxes, closures, dyn nodes) use new static inline twins
scr_cyc_alloc_inline/scr_cyc_free_inline; scr_cyc_live is exported.

The ABI guard now recognizes function-pointer extern data
(scr_weak_dispose_hook). New corpus program 4410 pins recycled-block
clearing, size classes, objects above the largest class, cycles and weak
observers.
2026-10-08 15:36:07 -05:00
..
2026-07-22 18:08:04 -05:00
2026-10-07 19:15:55 -05:00