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Quick Lists
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Bug ID:
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6667595
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Votes
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0
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Synopsis
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Set probability FAIR for pre-, post- loops and ALWAYS for main loop
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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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hs14(b06)
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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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Submit Date
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26-FEB-2008
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Description
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C2 clone original loop's probability when it constructs pre-, main, post- loops.
Then C2 adds zero-trip guard for main loop with probability FAIR.
As result a main loop's probability could be half of a pre-loop's probability
and RA may generates stack spills in the main loop and not in the pre-loop.
Posted Date : 2008-02-26 00:47:21.0
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Work Around
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N/A
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Evaluation
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http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/cc80376deb0c
Posted Date : 2008-10-03 00:41:05.0
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Comments
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PLEASE NOTE: JDK6 is formerly known as Project Mustang
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