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  1. JDK
  2. JDK-8184036

Restore -XX:UseAVX=3 as product value

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    • b178
    • x86
    • generic
    • Verified

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      Description

        JDK-8183103 was fixed by making PostLoopMultiversioning flag off by default and experimental. It was enough for workaround the problem until it is fixed JDK-8183390.

        But we have also concern about AVX3 stability because of insufficient testing on new Intel's hardware. We switched AVX3 off by default and made it experimental too.

        After discussions we agreed that making -XX:UseAVX=3 experimental was mistake. We should restore it to product value again.

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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-8185415 Restore -XX:UseAVX=3 as product value

            • P1 - Blocks development and/or testing work, production could not run.
            • 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-8185521 Restore -XX:UseAVX=3 as product value

            • P1 - Blocks development and/or testing work, production could not run.
            • 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-8188285 Restore -XX:UseAVX=3 as product value

            • P1 - Blocks development and/or testing work, production could not run.
            • 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-8188975 Restore -XX:UseAVX=3 as product value

            • P1 - Blocks development and/or testing work, production could not run.
            • Resolved
            relates to

            Enhancement - null JDK-8185802 Enable AVX3 by default

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8183103 Post loop vectorization produces incorrect results

            • P1 - Blocks development and/or testing work, production could not run.
            • Closed

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                kvn Vladimir Kozlov
                kvn Vladimir Kozlov
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                  Created:
                  Updated:
                  Resolved: