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  1. JDK
  2. JDK-8183390

Fix and re-enable post loop vectorization

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    • b17

    Description

      The fix for JDK-8183103 disabled PostLoopMultiversioning and AVX=3 in JDK 9 by default due to problems with the vectorization of post loops.

      We should implement a full fix and re-enable both features in JDK 10 (or a JDK 9 update release).

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-8183319 Post loop vectorization fails with "Error mixing types: int and vectorz"

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8247838 PostLoopMultiversioning is broken and generates incorrect result

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8289954 C2: Assert failed in PhaseCFG::verify() after JDK-8183390

          • P3 - Major loss of function.
          • 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

          Enhancement - null JDK-8308994 C2: Re-implement experimental post loop vectorization

          • P3 - Major loss of function.
          • In Progress

          Enhancement - null JDK-8151573 Multiversioning for range check elimination

          • P3 - Major loss of function.
          • Resolved

          Enhancement - null JDK-8153998 Masked vector post loops

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

          Commit Commit openjdk/jdk/741be461

          Review Review openjdk/jdk/6828

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              pli Pengfei Li
              thartmann Tobias Hartmann
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              Dates

                Created:
                Updated:
                Resolved: