JDK-8264954 : unified handling for VectorMask object re-materialization during de-optimization
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 17
- Priority: P3
- Status: Closed
- Resolution: Fixed
- OS: generic
- CPU: generic
- Submitted: 2021-04-09
- Updated: 2021-04-29
- Resolved: 2021-04-12
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| JDK 17 |
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17 b18Fixed  |
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Description
Currently mask values are propagated using vector registers, shape of mask vector matches the shape of the operands of a vector operation. Objects allocated in the compiled frame are re-constructed during de-optimization. To provide a unified handling for VectorMask instance reconstruction when mask is held either in a predicate register (for Intel AVX512 or ARM SVE) or vector register.
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