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IonMonkey: Add infallible MUnbox after known-object type barrier

RESOLVED FIXED

Status

()

Core
JavaScript Engine
RESOLVED FIXED
5 years ago
5 years ago

People

(Reporter: jandem, Assigned: jandem)

Tracking

(Blocks: 1 bug)

Firefox Tracking Flags

(Not tracked)

Details

Attachments

(1 attachment)

(Assignee)

Description

5 years ago
Created attachment 631370 [details] [diff] [review]
Patch

If a type barrier has type "object" (but not "any object") we have to use MTypeBarrier instead of MUnbox because we have to test the object types. This patch adds an infallible unbox after the type barrier to avoid a bunch of fallible unbox instructions inside a hot loop on SS-fannkuch.
Attachment #631370 - Flags: review?(dvander)
Attachment #631370 - Flags: review?(dvander) → review+
(Assignee)

Comment 1

5 years ago
http://hg.mozilla.org/projects/ionmonkey/rev/7f354603e953
Status: ASSIGNED → RESOLVED
Last Resolved: 5 years ago
Resolution: --- → FIXED
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