Closed
Bug 1124684
Opened 9 years ago
Closed 7 years ago
Array operations appear not to be optimized for empty arrays
Categories
(Core :: JavaScript Engine, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 1088189
People
(Reporter: abbGZcvu_bugzilla.mozilla.org, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0
Build ID: 20150108202552
Steps to reproduce:
Certain operations appear not to be optimized for empty arrays, eg.
new Array(0x4000000).reverse()
new Array(0x4000000).sort()
new Array(0x4000000).join("")
Actual results:
Code uses 100% CPU for a while.
Expected results:
Code should return almost instantly. (Compare Google's V8)
Component: Untriaged → JavaScript Engine
Product: Firefox → Core
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Updated•7 years ago
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Status: NEW → RESOLVED
Closed: 7 years ago
Resolution: --- → DUPLICATE
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Description
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