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  1. JDK
  2. JDK-6682236

C2 hits ideal nodes limit during IGVN optimization with EA

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: hs12
    • Fix Version/s: hs12
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b02
    • CPU:
      x86
    • OS:
      solaris_10
    • Verification:
      Not verified

      Backports

        Description

        C2 can reach ideal nodes limit during IGVN optimization with Escape Analysis
        since new nodes are added in LoadNode::Ideal() and PhiNode::Ideal() methods
        without removing old nodes.

        #
        # An unexpected error has been detected by Java Runtime Environment:
        #
        # Internal Error (/net/jaberwocky/export/home2/work/6259129/src/share/vm/opto/node.cpp:60), pid=25960, tid=23
        # Error: assert(Compile::current()->unique() < (uint)MaxNodeLimit,"Node limit exceeded")
        #
        # Java VM: Java HotSpot(TM) Server VM (12.0-b01-internal-jvmg compiled mode solaris-x86)
        # If you would like to submit a bug report, please visit:
        # http://java.sun.com/webapps/bugreport/crash.jsp
        # The crash happened outside the Java Virtual Machine in native code.
        # See problematic frame for where to report the bug.
        #
         
        --------------- T H R E A D ---------------
         
        Current thread (0x0827d800): JavaThread "CompilerThread1" daemon [_thread_in_native, id=23, stack(0xb5a65000,0xb5aa5000)]
         
        Stack: [0xb5a65000,0xb5aa5000], sp=0xb5aa2130, free space=244k
        Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
        V [libjvm.so+0x9bb124] void VMError::report(outputStream*) + 0xa64
        V [libjvm.so+0x9bc16b] void VMError::report_and_die() + 0x62b
        V [libjvm.so+0x4c5899] void report_assertion_failure(const char*,int,const char*) + 0x79
        V [libjvm.so+0x7ec28c] void Node::verify_construction() + 0xfc
        V [libjvm.so+0x7ee36a] Node*Node::clone()const + 0x16a
        V [libjvm.so+0x7aa8dd] Node*LoadNode::Ideal(PhaseGVN*,bool) + 0x56d
        V [libjvm.so+0x8606a9] Node*PhaseIterGVN::transform_old(Node*) + 0x299
        V [libjvm.so+0x85fea1] void PhaseIterGVN::optimize() + 0x171
        V [libjvm.so+0x473d11] void Compile::Optimize() + 0x101
        V [libjvm.so+0x4703da] Compile::Compile(ciEnv*,C2Compiler*,ciMethod*,int,bool,bool) + 0xd6a
        V [libjvm.so+0x3ac1bf] void C2Compiler::compile_method(ciEnv*,ciMethod*,int) + 0xaf

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                • Assignee:
                  kvn Vladimir Kozlov
                  Reporter:
                  kvn Vladimir Kozlov
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                  • Created:
                    Updated:
                    Resolved:
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