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  1. JDK
  2. JDK-8279668

x86: AVX2 versions of vpxor should be asserted

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    • b05

    Backports

      Description

        Got the SIGILLs on some machines when testing JDK-8279621. That patch started using shorter vpxor versions on UseAVX = 1 path, which tried to use VEX.256-encoded vpxor instruction that is only available on AVX2. This should be at very least asserted in assembler code.

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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-8283039 x86: AVX2 versions of vpxor should be asserted

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8283040 x86: AVX2 versions of vpxor should be asserted

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8283155 x86: AVX2 versions of vpxor should be asserted

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8283156 x86: AVX2 versions of vpxor should be asserted

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8283259 x86: AVX2 versions of vpxor should be asserted

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

            Enhancement - null JDK-8005419 Improve intrinsics code performance on x86 by using AVX2

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

            Enhancement - null JDK-8279621 x86_64 arraycopy stubs should use 256-bit copies with AVX=1

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

            Commit Commit openjdk/jdk11u-dev/11231206

            Commit Commit openjdk/jdk17u-dev/5edb9822

            Commit Commit openjdk/jdk18u/6b5706a8

            Commit Commit openjdk/jdk/2bbeae3f

            Review Review openjdk/jdk11u-dev/872

            Review Review openjdk/jdk17u-dev/226

            Review Review openjdk/jdk18u/39

            Review Review openjdk/jdk/7005

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                shade Aleksey Shipilev
                shade Aleksey Shipilev
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                  Updated:
                  Resolved: