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Quick Lists
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Bug ID:
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6468406
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Votes
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0
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Synopsis
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PhiNode Identity & Ideal must find the same unique input patterns
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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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hs10(b03),
6u4(b03) (Bug ID:2171826)
, 7(b03) (Bug ID:2176758)
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State
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10-Fix Delivered,
bug
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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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07-SEP-2006
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Description
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Mostly a refactoring of the code in PhiNode's Identity and Ideal
which identified phi's receiving a unique value on multiple control
paths, possibly masked by constaint casts and self loops. The
factored code was encapsulated in a new method PhiNode::unique_input.
This fixes a bug caused by PhiNode Identity and Ideal not looking for
the same patterns.
Also, common code was factored out from PhiNode's Identity and Ideal
which looked for patterns like: x = (x==0)?0:x and generalized
to allow constraint casts in the pattern.
Posted Date : 2006-09-07 20:19:36.0
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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 : 2006-09-07 20:23:52.0
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Comments
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PLEASE NOTE: JDK6 is formerly known as Project Mustang
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