JDK-6708714 : Optimize long LShift on 32-bits x86
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: hs13
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- OS: solaris_10
- CPU: x86
- Submitted: 2008-05-29
- Updated: 2010-04-03
- Resolved: 2008-07-02
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| JDK 6 | JDK 7 | Other |
|---|---|---|
6u14Fixed  |
7Fixed |
hs14Fixed |
Description
For small (1-3 bits) left long shifts in 32-bits VM use sets of add+addc instructions instead of shld+shl on new AMD cpus.
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