Chris Tate 8eedab9fde Cache untyped property access in programs that declare classes ...

A program that declares a class reads and writes untyped properties
through helpers that first select the receiver's property bag. The bag
helpers return jsvals, so the helpers read the bag through js.toDyn;
keyed helpers test each class's key table between the key's coercion and
the read; and a program with subclasses normalizes the receiver
(value = %dyn.class.normalize(value)) at the start of each helper. The
inline-cache recognizer accepted none of these forms, so every property
site in such a program called its helper. It now looks through dyn/jsval
conversions of the receiver, accepts capsule branches before a keyed
helper's final read, and accepts a rebinding of the receiver to a bag of
itself. Plain objects and arrays then read and write through the site's
cache, as they do in programs without classes.

bench/dynamic-properties (new) exercises these sites.

2026-10-23 08:41:40 -05:00

..

builds

Make native installs portable and smaller (#599)

2026-10-01 10:46:16 -05:00

regions

Carry lifetime regions across await and reuse freed region chunks

2026-10-17 11:26:12 -07:00

runtime

Cache untyped property access in programs that declare classes

2026-10-23 08:41:40 -05:00

scaling

Keep each runtime benchmark workload in its own file

2026-10-20 18:08:10 -05:00