Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8303737

C2: Load can bypass subtype check that enforces it's from the right object type

    XMLWordPrintable

Details

    • b17

    Backports

      Description

        With attached test case run with:

        java -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation -XX:CompileOnly=TestAddPChainMismatchedBase::test -XX:LoopMaxUnroll=2 -XX:+UseParallelGC -XX:+StressIGVN -XX:-UseLoopPredicate -XX:-UseProfiledLoopPredicate  -XX:StressSeed=2062976637 TestAddPChainMismatchedBase

        I get:

         Internal Error (/home/roland/jdk-jdk/src/hotspot/share/opto/compile.cpp:3267), pid=2783357, tid=2783366
         assert(!addp->is_AddP() || addp->in(AddPNode::Base)>is_top() || addp>in(AddPNode::Base) == n->in(AddPNode::Base)) failed: Base pointers must match (addp 682)

        Attachments

          Issue Links

            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-8319226 C2: Load can bypass subtype check that enforces it's from the right object type

            • P3 - Major loss of function.
            • Resolved
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8321370 SIGSEGV PhaseIdealLoop::build_loop_late_post_work(Node*, bool)+0xce

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

            Enhancement - null JDK-8297933 [REDO] Compiler should only use verified interface types for optimization

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8139771 Eliminating CastPP nodes at Phis when they all come from a unique input may cause crash

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

            Commit Commit openjdk/jdk21u/c3c2b9f4

            Commit Commit openjdk/jdk/52983ed5

            Review Review openjdk/jdk21u/291

            Review Review openjdk/jdk/15595

            Activity

              People

                roland Roland Westrelin
                roland Roland Westrelin
                Votes:
                0 Vote for this issue
                Watchers:
                5 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: