Bug 155590 - The concat fast path should use "in" instead of a getbyid === undefined
Summary: The concat fast path should use "in" instead of a getbyid === undefined
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
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Blocks:
 
Reported: 2016-03-17 11:32 PDT by Keith Miller
Modified: 2016-03-17 11:32 PDT (History)
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Description Keith Miller 2016-03-17 11:32:11 PDT 
We use getbyid === undefined because switch to in is a 10% regression on the stanford-crypto tests. We should notice in the DFG that an in on an id is a constant and fold it.