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  1. JDK
  2. JDK-8153998

Masked vector post loops

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Labels:
      None
    • Subcomponent:
    • Resolved In Build:
      b120
    • CPU:
      x86
    • OS:
      generic

      Description

      This is the performance based implementation of the of the two part pair, for which Multiversioning for range check elimination was the first part. This part implements masked vectorization for fully enabled EVEX x86/x64 targets.

      Tested as follows:

      SpecJvm2008 windows: HSW(64/32 bit): SKX(64/32 bit) : KNL (64/32 bit)
                  linux: SKX(64-bit)

      jtreg: windows: HSW(64/32 bit) , skx(64/32-bit)

        Attachments

          Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8183390 Fix and re-enable post loop vectorization

          • 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

          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

          Enhancement - null JDK-8151573 Multiversioning for range check elimination

          • P3 - Major loss of function.
          • Resolved

            Activity

              People

              Assignee:
              mcberg Michael Berg (Inactive)
              Reporter:
              mcberg Michael Berg (Inactive)
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                Dates

                Due:
                Created:
                Updated:
                Resolved:

                  Time Tracking

                  Estimated:
                  Original Estimate - 4 weeks
                  4w
                  Remaining:
                  Remaining Estimate - 2 days
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