1615486 - Optimization to rely on WeakMap key delegate's previously set gray color

Status: ASSIGNED

(Core :: JavaScript: GC, enhancement, P3)

Description

[Steve Fink [:sfink] [:s:]]

As Jon suggested, a delegate that is currently marked gray in a previous GC can be safely considered to still be gray because of read barriers.

Comment 1

[Steve Fink [:sfink] [:s:]]

Attachment: Bug 1615486 - Optimization to rely on WeakMap key delegate's previously set gray color

Comment 2

[Jon Coppeard (:jonco)]

(And not just delegates - anything marked gray in a zone we're not collecting can be considered gray).

Comment 3

[Steve Fink [:sfink] [:s:]]

(In reply to Jon Coppeard (:jonco) from comment #2)

(And not just delegates - anything marked gray in a zone we're not collecting can be considered gray).

Darn, I didn't read this before figuring it out myself.