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Issue 5175 link

Starred by 1 user

Issue metadata

Status: Fixed
Last visit > 30 days ago
Closed: Jul 2016
HW: ----
NextAction: ----
OS: ----
Priority: 2
Type: Bug

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Replace ObjectProtoToString with TurboFan codestub

Project Member Reported by, Jul 1 2016

Issue description

Speedup ObjectProtoToString with TurboFan codestub. 

Comment 1 by, Jul 1 2016

Curious what's driving this particular work. Is it to improve Speedometer score?
It's actually one of the top used builtins, and fairly straightforward to make faster.
Project Member

Comment 3 by, Jul 18 2016

The following revision refers to this bug:

commit 3a1296a20e9bd8a4494c453ece5e276314dfe256
Author: franzih <>
Date: Mon Jul 18 10:02:31 2016

[builtins] Object.prototype.toString() as TurboFan stub.

For angular.js on Speedometer, this results in 8.96%
speed up, i.e., the tests take on average 762ms
with this patch, 837ms without.

BUG=  v8:5175 

Cr-Commit-Position: refs/heads/master@{#37827}


Status: Fixed (was: Assigned)
Labels: Priority-2

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