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Enhancement
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Resolution: Fixed
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P4
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17, 18
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b15
Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
---|---|---|---|---|---|---|
JDK-8276879 | 17.0.3-oracle | Yi Yang | P4 | Resolved | Fixed | b01 |
JDK-8276747 | 17.0.2 | Yi Yang | P4 | Resolved | Fixed | b04 |
Add the following identical equations for Add and Xor node, respectively.
~(x-1) => -x
~x + 1 => -x
~(x-1) => -x
~x + 1 => -x
- backported by
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JDK-8276747 C2: Improve Add and Xor ideal optimizations
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- Resolved
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JDK-8276879 C2: Improve Add and Xor ideal optimizations
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- Resolved
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- relates to
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JDK-8273868 Add IR tests for JDK-8273021
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- Open
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JDK-8279607 Existing optimization "~x+1" -> "-x" can be generalized to "~x+c" -> "(c-1)-x".
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- Resolved
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- links to
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Commit openjdk/jdk17u/e829c856
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Commit openjdk/jdk/a73c06de
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Review openjdk/jdk17u/222
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Review openjdk/jdk/5266
(3 links to)