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Quick Lists
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Bug ID:
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6703890
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Votes
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0
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Synopsis
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Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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Category
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hotspot:compiler2
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Reported Against
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Release Fixed
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hs13(b02)
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State
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10-Fix Delivered,
request for enhancement
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Priority:
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4-Low
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Related Bugs
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6687583
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Submit Date
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16-MAY-2008
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Description
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Currently C2 generates CmpP (64-bits) instructions for klass and oop NULL checks
with Compressed Oops.
Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes and
add correspondent platform specific assembler instructions
to generate narrow oops (32-bits) compare instructions
to avoid decoding.
Posted Date : 2008-05-21 22:56:26.0
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Work Around
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N/A
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Evaluation
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See Description.
Posted Date : 2008-05-21 22:56:26.0
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Comments
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PLEASE NOTE: JDK6 is formerly known as Project Mustang
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