JDK-8167199 : Add C2 SPARC intrinsic for BigInteger::multiplyToLen() method
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 9,10
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- OS: generic
- CPU: sparc
- Submitted: 2016-10-05
- Updated: 2017-11-22
- Resolved: 2017-10-12
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| JDK 10 |
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10 b31Fixed  |
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Description
We have a potential of getting a 3x speedup if we use the umulxhi instruction on SPARC to get the upper 64-bits of the result of a 64x64 multiply. Please use a BigDecimalBench.testMultiply JMH micro-benchmark to verify, or check a related issue.
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