Debugging graalsqueak via --inspect causes lots of error messages

[janehmueller]

When starting graalsqueak with the flag --inspect and then using the Chrome debugger, lots of the following error messages appear. The function at the beginning (Heap>>downHeapSingle in this case) changes, but the error messages is always the same. This happens on graalsqueak 0.8 as well as 0.8.4

[truffle] opt fail         Heap>>downHeapSingle: <split-463685c6>                      |Reason org.graalvm.compiler.code.SourceStackTraceBailoutException$1: Object of type Lorg/graalvm/compiler/truffle/runtime/FrameWithoutBoxing; shoul
d not be materialized:                                                                                                                                                                                                                     
org.graalvm.compiler.code.SourceStackTraceBailoutException$1: Object of type Lorg/graalvm/compiler/truffle/runtime/FrameWithoutBoxing; should not be materialized:                                                                         
        at com.oracle.truffle.api.debug.DebuggerSession$SteppingNode.onEnter(DebuggerSession.java:1286)                                                                                                                                    
        at com.oracle.truffle.api.debug.DebuggerSession$RootSteppingDepthNode.onEnter(DebuggerSession.java:1378)                                                                                                                           
        at com.oracle.truffle.api.instrumentation.ProbeNode$EventProviderChainNode.innerOnEnter(ProbeNode.java:1449)                                                                                                                       
        at com.oracle.truffle.api.instrumentation.ProbeNode$EventChainNode.onEnter(ProbeNode.java:898)                                                                                                                                     
        at com.oracle.truffle.api.instrumentation.ProbeNode.onEnter(ProbeNode.java:156)                                                                                                                                                    
        at de.hpi.swa.graal.squeak.nodes.EnterCodeNodeWrapper.execute(EnterCodeNodeWrapper.java:44)                                                                                                                                        
        at de.hpi.swa.graal.squeak.nodes.EnterCodeNode$SqueakCodeRootNode.execute(EnterCodeNode.java:61)                                                                                                                                   
        at org.graalvm.compiler.truffle.runtime.OptimizedCallTarget.callProxy(OptimizedCallTarget.java:325)                                                                                                                                
        at org.graalvm.compiler.truffle.runtime.OptimizedCallTarget.callRoot(OptimizedCallTarget.java:315)                                                                                                                                 
Caused by: org.graalvm.compiler.graph.VerificationError: Object of type Lorg/graalvm/compiler/truffle/runtime/FrameWithoutBoxing; should not be materialized:                                                                              
        at org.graalvm.compiler.nodes.virtual.EnsureVirtualizedNode.ensureVirtualFailure(EnsureVirtualizedNode.java:98)                                                                                                                    
        at org.graalvm.compiler.nodes.virtual.EnsureVirtualizedNode.lower(EnsureVirtualizedNode.java:82)                                                                                                                                   
        at org.graalvm.compiler.phases.common.LoweringPhase$Round.process(LoweringPhase.java:476)                                                                                                                                          
        at org.graalvm.compiler.phases.common.LoweringPhase$Round.access$200(LoweringPhase.java:352)                                                                                                                                       
        at org.graalvm.compiler.phases.common.LoweringPhase$Round$ProcessFrame.preprocess(LoweringPhase.java:416)                                                                                                                          
        at org.graalvm.compiler.phases.common.LoweringPhase.processBlock(LoweringPhase.java:575)                                                                                                                                           
        at org.graalvm.compiler.phases.common.LoweringPhase$Round.run(LoweringPhase.java:401)                                                                                                                                              
        at org.graalvm.compiler.phases.Phase.run(Phase.java:49)                                                                                                                                                                            
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:197)                                                                                                                                                                 
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:139)                                                                                                                                                                 
        at org.graalvm.compiler.phases.PhaseSuite.run(PhaseSuite.java:212)                                                                                                                                                                 
        at org.graalvm.compiler.phases.common.IncrementalCanonicalizerPhase.run(IncrementalCanonicalizerPhase.java:56)                                                                                                                     
        at org.graalvm.compiler.phases.common.IncrementalCanonicalizerPhase.run(IncrementalCanonicalizerPhase.java:38)                                                                                                                     
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:197)                                                                                                                                                                 
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:139)                                                                                                                                                                 
        at org.graalvm.compiler.phases.common.LoweringPhase.lower(LoweringPhase.java:272)                                                                                                                                                  
        at org.graalvm.compiler.phases.common.LoweringPhase.run(LoweringPhase.java:265)                                                                                                                                                    
        at org.graalvm.compiler.phases.common.LoweringPhase.run(LoweringPhase.java:95)                                                                                                                                                     
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:197)                                                                                                                                                                 
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:139)                                                                                                                                                                 
        at org.graalvm.compiler.phases.PhaseSuite.run(PhaseSuite.java:212)                                                                                                                                                                 
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:197)                                                                                                                                                                 
        at org.graalvm.compiler.phases.BasePhase.apply(BasePhase.java:139)                                                                                                                                                                 
        at org.graalvm.compiler.core.GraalCompiler.emitFrontEnd(GraalCompiler.java:220)                                                                                                                                                    
        at org.graalvm.compiler.core.GraalCompiler.compile(GraalCompiler.java:144)                                                                                                                                                         
        at org.graalvm.compiler.core.GraalCompiler.compileGraph(GraalCompiler.java:129)                                                                                                                                                    
        at org.graalvm.compiler.truffle.compiler.TruffleCompilerImpl.compilePEGraph(TruffleCompilerImpl.java:518)                                                                                                                          
        at org.graalvm.compiler.truffle.compiler.TruffleCompilerImpl.compileAST(TruffleCompilerImpl.java:452)                                                                                                                              
        at org.graalvm.compiler.truffle.compiler.TruffleCompilerImpl$TruffleCompilationWrapper.performCompilation(TruffleCompilerImpl.java:621)                                                                                            
        at org.graalvm.compiler.truffle.compiler.TruffleCompilerImpl$TruffleCompilationWrapper.performCompilation(TruffleCompilerImpl.java:568)                                                                                            
        at org.graalvm.compiler.core.CompilationWrapper.run(CompilationWrapper.java:177)                                                                                                                                                   
        at org.graalvm.compiler.truffle.compiler.TruffleCompilerImpl.doCompile(TruffleCompilerImpl.java:280)                                                                                                                               
        at org.graalvm.compiler.truffle.compiler.hotspot.libgraal.HotSpotToSVMEntryPoints.doCompile(HotSpotToSVMEntryPoints.java:251)   

[fniephaus]

I'm unable to explain this, so I've opened oracle/graal#1445.

[fniephaus]

This should be fixed in the next release. Thanks!