Bug 186473 - [DFG] ArraySlice should support arguments types
Summary: [DFG] ArraySlice should support arguments types
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Yusuke Suzuki
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-06-10 06:47 PDT by Yusuke Suzuki
Modified: 2018-06-10 06:47 PDT (History)
3 users (show)

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Description Yusuke Suzuki 2018-06-10 06:47:31 PDT
So frequent use of Array#slice is converting arguments to arrays by

var slice = Array.prototype.slice;

slice.call(arguments);

Our DFG pipeline only supports ArraySlice with JS Array types. JSC DFG should support ArraySlice with arguments.