Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8284159

[lworld] C2 failures with migrated wrapper classes

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P2
    • Resolution: Fixed
    • Affects Version/s: repo-valhalla
    • Fix Version/s: repo-valhalla
    • Component/s: hotspot
    • Labels:

      Description

      We hit the following asserts in C2 when migrating wrapper classes like java.lang.Integer to value classes:

      # Internal Error (/valhalla/open/src/hotspot/share/opto/inlinetypenode.cpp:757), pid=3021298, tid=3021986
      # assert(!null_free || vt->as_InlineType()->is_default(&gvn) || init_ctl != kit->control() || !gvn.type(oop)->is_inlinetypeptr() || oop->is_Con() || oop->Opcode() == Op_InlineTypePtr || AllocateNode::Ideal_allocation(oop, &gvn) != __null || vt->as_InlineType()->is_loaded(&gvn) == oop) failed: inline type should be loaded
      #
      # JRE version: Java(TM) SE Runtime Environment (19.0) (fastdebug build 19-lworld3ea-2022-03-30-1508533.fred...)
      # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 19-lworld3ea-2022-03-30-1508533.fred..., mixed mode, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
      # Problematic frame:
      # V [libjvm.so+0xf5f4da] InlineTypeNode::make_from_oop(GraphKit*, Node*, ciInlineKlass*, bool)+0x9aa


      narrowoop: java/lang/Integer:NotNull:exact *[int:256]:exact *
       k: <ciObjArrayKlass name=[Ljava/lang/Integer; ident=1291 address=0x00007fb214024c98>
      ck: <ciFlatArrayKlass name=[Qjava/lang/Integer; ident=1294 address=0x00007fb214025880>
      # To suppress the following error report, specify this argument
      # after -XX: or in .hotspotrc: SuppressErrorAt=/type.hpp:1367
      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/oracle/valhalla/open/src/hotspot/share/opto/type.hpp:1367), pid=545168, tid=545176
      # assert(false) failed: unexpected TypeAryPtr::_klass
      #

        Attachments

          Issue Links

            Activity

              People

              Assignee:
              thartmann Tobias Hartmann
              Reporter:
              thartmann Tobias Hartmann
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: