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  1. JDK
  2. JDK-8320206

Some intrinsics/stubs missing vzeroupper on x86_64

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    • b25
    • x86

    Backports

      Description

        The following intrinsics/stubs are missing vzeroupper:
        adler32 (since JDK17)
        count_positives (since JDK 9)
        chacha20 (since JDK 20)
        string indexOfChar (since JDK 9)

        This could result in AVX-SSE transition penalties.

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            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-8322792 Some intrinsics/stubs missing vzeroupper on x86_64

            • P3 - Major loss of function.
            • Resolved

            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-8326506 Some intrinsics/stubs missing vzeroupper on x86_64

            • P3 - Major loss of function.
            • Resolved
            links to

            Commit Commit openjdk/jdk21u-dev/98fb4256

            Commit Commit openjdk/jdk/9b372e28

            Review Review openjdk/jdk21u-dev/75

            Review Review openjdk/jdk21u/380

            Review Review openjdk/jdk/16678

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                sviswanathan Sandhya Viswanathan
                sviswanathan Sandhya Viswanathan
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                  Created:
                  Updated:
                  Resolved: