[Backport] 8262355: Support for AVX-512 opmask register allocation. #639
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Summary: 8261553: Efficient mask generation using BMI2 BZHI instruction
Only introduce genmask() and bzhiq()
Test Plan: ci jtreg
Reviewed-by: JoshuaZhuwj
Issue: dragonwell-project#690
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Summary: 8262355: Support for AVX-512 opmask register allocation. Add VectorMaskGen, LoadVectorMasked and StoreVectorMasked related code. Test Plan: ci jtreg Reviewed-by: JoshuaZhuwj Issue: dragonwell-project#607
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Summary: 8262355: Support for AVX-512 opmask register allocation.
Test Plan: ci jtreg
Reviewed-by: JoshuaZhuwj
Issue: #607