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  1. JDK
  2. JDK-8238153

CTW: C2 (Shenandoah) compilation fails with "Unknown node in get_load_addr: CreateEx"

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    Backports

      Description

        $ cd test/hotspot/jtreg/testlibrary/ctw
        $ make
        $ cd dist
        $ wget https://repo1.maven.org/maven2/org/jogamp/gluegen/gluegen/2.3.2/gluegen-2.3.2.jar
        $ JAVA_OPTIONS="-XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC" ./ctw.sh gluegen-2.3.2.jar

        # Internal Error (/home/shade/trunks/jdk-jdk/src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp:1805), pid=32365, tid=32419
        # fatal error: Unknown node in get_load_addr: CreateEx
        #
        # JRE version: OpenJDK Runtime Environment (15.0) (fastdebug build 15-internal+0-adhoc.shade.jdk-jdk)
        # Java VM: OpenJDK 64-Bit Server VM (fastdebug 15-internal+0-adhoc.shade.jdk-jdk, mixed mode, sharing, tiered, compressed oops, shenandoah gc, linux-amd64)
        # Problematic frame:
        # V [libjvm.so+0x1507d6d] ShenandoahBarrierC2Support::get_load_addr(PhaseIdealLoop*, VectorSet&, Node*)+0x8d

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            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-8239481 CTW: C2 (Shenandoah) compilation fails with "Unknown node in get_load_addr: CreateEx"

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8239936 CTW: C2 (Shenandoah) compilation fails with "Unknown node in get_load_addr: CreateEx"

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8229350 Shenandoah does not need barriers before CreateEx

            • P3 - Major loss of function.
            • Resolved

            Enhancement - null JDK-8231087 Shenandoah: Self-fixing load reference barriers for C1/C2

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

            Web Link RFR at hotspot-compiler-dev

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                shade Aleksey Shipilev
                shade Aleksey Shipilev
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                  Updated:
                  Resolved: