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  1. JDK
  2. JDK-8277168

AArch64: Enable arraycopy partial inlining with SVE

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Details

    • Enhancement
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • 18
    • 18
    • hotspot
    • b27
    • aarch64
    • generic

    Backports

      Description

        Arraycopy partial inlining is a C2 compiler technique that avoids stub call overhead in small-sized arraycopy operations by generating masked vector instructions. So far it works on x86 AVX512 only but we can also enable it for AArch64 SVE.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8278701 AArch64: Enable arraycopy partial inlining with SVE

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            relates to

            Sub-task - The sub-task of the issue JDK-8252848 Optimize small primitive arrayCopy operations through partial inlining using AVX-512 masked instructions

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk/e7db581e

            Review Review openjdk/jdk/6444

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                pli Pengfei Li
                pli Pengfei Li
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                Dates

                  Created:
                  Updated:
                  Resolved: