1838554 - Use an IC for JSOp::BuiltinObject

Status: NEW

(Core :: JavaScript Engine: JIT, enhancement, P1)

Description

[Iain Ireland [:iain]]

We currently handle BuiltinObject in the baseline interpreter by generating a VM call to BuiltinObjectOperation, and in the baseline compiler by calling BuiltinObjectOperation during compilation to get the object, and then baking it in directly.

The interpreter implementation is slow. The compiler implementation doesn't play nicely with Bryan's work to share selfhosted baseline code, and also doesn't play nicely with my work to do offthread baseline compiles.

We can solve all these problems at once by using a baseline IC, much like we already do for GetIntrinsic.

Comment 1

[Iain Ireland [:iain]]

Attachment: WIP: Bug 1838554 - Use an IC for JSOp::BuiltinObject