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  1. JDK
  2. JDK-8052081

Optimize code generated by C2 for Intel's Atom processor

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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:
      b28
    • CPU:
      x86
    • OS:
      generic

      Backports

        Description

        Atom processor does not have AVX unit but it has SSE so we still can do vectorization.
        CRC32 assembler code can be modified to use only SSE instructions to execute it on Atom processors too.

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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-8054947 Optimize code generated by C2 for Intel's Atom processor

            • 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-8056363 Optimize code generated by C2 for Intel's Atom processor

            • 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-8063385 Optimize code generated by C2 for Intel's Atom processor

            • 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-8070944 Optimize code generated by C2 for Intel's Atom processor

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8059780 SPECjvm2008-MPEG performance regressions on x64 platforms

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

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                Assignee:
                kvn Vladimir Kozlov
                Reporter:
                kvn Vladimir Kozlov
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                  Dates

                  Created:
                  Updated:
                  Resolved: