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  1. JDK
  2. JDK-8201193

Use XMM/YMM for objects initialization

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    • Subcomponent:
    • Resolved In Build:
      b18
    • CPU:
      x86
    • OS:
      generic

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        Description

        Right now, for longer lengths we use "rep stos" instructions on x86, for short lengths we use "mov rax". Experiments show that we can use XMM/YMM registers for middle lengths to improve objects initialization perofrmance.

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                • Assignee:
                  kvn Vladimir Kozlov
                  Reporter:
                  kvn Vladimir Kozlov
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