Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8321097

C2: Broken graph due to dying Cast nodes while control cannot be removed

    XMLWordPrintable

Details

    • Bug
    • Resolution: Not an Issue
    • P3
    • 23
    • 22, 23
    • hotspot

    Description

      There have been several reports of triggering various bad graph asserts in the past. The originally filed enhancement JDK-8275202 seems to fix them. But this is rather a fortunate side effect. As a result, JDK-8275202 was converted to a bug which it should not be.

      In the meantime, the fix for JDK-8319372 is a promising step towards fixing the linked duplicates of JDK-8275202 as well which supports the conversion of JDK-8275202 back to an RFE even more.

      I'm therefore filing this new bug in order to re-link all the duplicated bugs of JDK-8275202 to this one which allows us to convert JDK-8275202 back to an RFE. In the scope of this (umbrella) bug, we should do the following:
      - Check if JDK-8319372 fixes the closed duplicates of JDK-8275202.
      - If there are remaining failing cases left, we should find another solution that does not rely on the new improvements of JDK-8275202.
      - If there are no remaining failing cases left, we could still close this bug as not an issue (anymore).

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. JDK-8293941 C2: assert(false) failed: Bad graph detected in build_loop_late

          • P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8314111 C2: assert(false) failed: Bad graph detected in build_loop_late

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8272562 C2: assert(false) failed: Bad graph detected in build_loop_late

          • P3 - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8319372 C2 compilation fails with "Bad immediate dominator info"

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8318690 C2: assert(!had_error) failed: bad dominance

          • P3 - Major loss of function.
          • Closed

          Enhancement - null JDK-8275202 C2: optimize out more redundant conditions

          • P3 - Major loss of function.
          • Open

          Enhancement - null JDK-8321107 Add more test cases for JDK-8319372

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

          Activity

            People

              chagedorn Christian Hagedorn
              chagedorn Christian Hagedorn
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: