JDK-8211251 : Default mask register for avx512 instructions
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 11,12
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- CPU: x86
- Submitted: 2018-09-27
- Updated: 2020-06-18
- Resolved: 2018-10-01
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| JDK 11 | JDK 12 |
|---|---|
| 11.0.2Fixed | 12 b14Fixed  |
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Description
Encode AVX 512 instructions as unmasked instruction where mask register is not specified. Currently unmasked instructions are encoded using k1 register, which requires k1 to be initialized properly and also reinitialized across JNI and Runtime calls
Comments
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