Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8278790

Inner loop of long loop nest runs for too few iterations

    XMLWordPrintable

    Details

    • Subcomponent:
    • Resolved In Build:
      b29

      Backports

        Description

        This came up with a panama micro-benchmark in which a loop has 256 iterations and a long range check with a small scale factor. A loop nest is created to transform the long range checks. The inner loop should still run for ~256 iterations but instead it only executes 256/scale iterations which has a performance impact.

          Attachments

            Issue Links

              Activity

                People

                Assignee:
                roland Roland Westrelin
                Reporter:
                roland Roland Westrelin
                Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                  Dates

                  Created:
                  Updated:
                  Resolved: