Building a graph manually

[Bahram Yarahmadi]

And this is the error that I always get
[thread:1] scope:
main.GraalCompilerRoot.GraalCompiler.FrontEnd.HighTier.CanonicalizerPhase.InterceptException
            Exception occurred in scope:
main.GraalCompilerRoot.GraalCompiler.FrontEnd.HighTier.CanonicalizerPhase.InterceptException
            Context obj java.lang.NullPointerException
            Context obj
com.oracle.graal.phases.common.CanonicalizerPhase at 77556fd
            Context obj com.oracle.graal.compiler.phases.HighTier at 368239c8
            Context obj StructuredGraph:1
            Context obj jdk.vm.ci.hotspot.HotSpotCodeCacheProvider at 3b192d32
E
testPrintBytecodes(com.oracle.graal.compiler.test.tutorial.GraalTutorial)
java.lang.NullPointerException
    at com.oracle.graal.nodes.Invoke.getContextMethod(Invoke.java:75)
    at
com.oracle.graal.nodes.java.MethodCallTargetNode.simplify(MethodCallTargetNode.java:165)
    at
com.oracle.graal.phases.common.CanonicalizerPhase$Instance.tryCanonicalize(CanonicalizerPhase.java:308)
    at
com.oracle.graal.phases.common.CanonicalizerPhase$Instance.processNode(CanonicalizerPhase.java:225)
    at
com.oracle.graal.phases.common.CanonicalizerPhase$Instance.processWorkSet(CanonicalizerPhase.java:210)
    at
com.oracle.graal.phases.common.CanonicalizerPhase$Instance.run(CanonicalizerPhase.java:180)
    at
com.oracle.graal.phases.common.CanonicalizerPhase.run(CanonicalizerPhase.java:104)
    at
com.oracle.graal.phases.common.CanonicalizerPhase.run(CanonicalizerPhase.java:1)
    at com.oracle.graal.phases.BasePhase.apply(BasePhase.java:143)
    at com.oracle.graal.phases.BasePhase.apply(BasePhase.java:133)
    at com.oracle.graal.phases.PhaseSuite.run(PhaseSuite.java:116)
    at com.oracle.graal.phases.BasePhase.apply(BasePhase.java:143)
    at com.oracle.graal.phases.BasePhase.apply(BasePhase.java:133)
    at
com.oracle.graal.compiler.GraalCompiler.emitFrontEnd(GraalCompiler.java:200)


On Wed, Jun 15, 2016 at 8:03 PM, Bahram Yarahmadi <
bahram.yarahmadi at gmail.com> wrote:

> Thanks for your help christian ,It worked
> I want to modify the graph an insert my own InvokeNode with
> MethodCallTargetNode to graph but according to the post from this mailing
> list (
> http://mail.openjdk.java.net/pipermail/graal-dev/2013-July/000650.html"
> it was impossible.Is it possible after about three years ?!
> This is my code,I get an error when I try to run it with unittest
>         StructuredGraph graph = new StructuredGraph(AllowAssumptions.YES);
>         ReturnNode returnNode = graph.add(new ReturnNode(null));
>       ValueNode valueNode1 = new ConstantNode(JavaConstant.forInt(154),
> StampFactory.intValue());
>         ValueNode valueNode2 = new ConstantNode(JavaConstant.forInt(25),
> StampFactory.intValue());
>         ValueNode[] valueNodes = new ValueNode[2];
>         valueNodes[0] = valueNode1;
>         valueNodes[1] = valueNode2;
>         graph.addWithoutUnique(valueNode1);
>         graph.addWithoutUnique(valueNode2);
>        ResolvedJavaMethod method = findMethod(Student.class, "SubInt");
>         MethodCallTargetNode callTarget = graph.add(new
> MethodCallTargetNode(MethodCallTargetNode.InvokeKind.Static,
>          method, valueNodes, StampFactory.forDeclaredType(null,
> method.getSignature().getReturnType(null), false), null));
>  InvokeNode ink = graph.add(new InvokeNode(callTarget,
> BytecodeFrame.UNWIND_BCI));
>           graph.start().setNext(ink);
>         ink.setNext(returnNode);
>          OptimisticOptimizations optimisticOpts =
> OptimisticOptimizations.ALL;
>         PhaseSuite<HighTierContext> graphBuilderSuite =
> backend.getSuites().getDefaultGraphBuilderSuite();
>         Suites suites = backend.getSuites().getDefaultSuites();
>         LIRSuites lirSuites = backend.getSuites().getDefaultLIRSuites();
>         ProfilingInfo profilingInfo = graph.getProfilingInfo(method);
>         CompilationResult compilationResult = new CompilationResult();
>         CompilationResultBuilderFactory factory =
> CompilationResultBuilderFactory.Default;
>         GraalCompiler.compileGraph(graph, method, providers, backend,
> graphBuilderSuite,
>         optimisticOpts, profilingInfo, suites, lirSuites,
> compilationResult, factory);
>         CompiledCode compiledCode = backend.createCompiledCode(method,
> compilationResult);
>         InstalledCode installedCode = codeCache.addCode(method,
> compiledCode, null, null);
>         try {
>             installedCode.executeVarargs();
>
>         } catch (InvalidInstalledCodeException e) {
>
>             e.printStackTrace();
>         }
> and by the way,Is it a correct way to compile a graph ? or It is better to
> write my own compilation phases
>
> Thanks again
>
> Regards
>
>
>
>
> On Tue, Jun 14, 2016 at 10:54 PM, Christian Wimmer <
> christian.wimmer at oracle.com> wrote:
>
>> Seems like you are not adding the ConstantNode to the graph.
>>
>>   ValueNode valueNode1 = new ConstantNode(JavaConstant.forInt(154),
>> StampFactory.intValue());
>>
>> should be
>>
>>  ValueNode valueNode1 = graph.unique(new
>> ConstantNode(JavaConstant.forInt(154), StampFactory.intValue()));
>>
>> Since constants are floating nodes, you need to use unique() instead of
>> add() - but they still need to be made part of the graph.
>>
>> -Christian
>>
>>
>>
>> On 06/14/2016 01:44 AM, Bahram Yarahmadi wrote:
>>
>>> Hello guys,
>>>
>>> I want to build a graph manually but when I want to add an invokeNode to
>>> the graph I get an error
>>> this is my code :
>>>          StructuredGraph graph = new
>>> StructuredGraph(AllowAssumptions.YES);
>>>          ReturnNode returnNode = graph.add(new ReturnNode(null));
>>>   ValueNode valueNode1 = new ConstantNode(JavaConstant.forInt(154),
>>> StampFactory.intValue());
>>>          ValueNode valueNode2 = new ConstantNode(JavaConstant.forInt(25),
>>> StampFactory.intValue());
>>>          ValueNode[] valueNodes = new ValueNode[2];
>>>          valueNodes[0] = valueNode1;
>>>          valueNodes[1] = valueNode2;
>>> ResolvedJavaMethod method = findMethod(AA.class, "SubInt");
>>>          MethodCallTargetNode callTarget = graph.add(new
>>> MethodCallTargetNode(MethodCallTargetNode.InvokeKind.Static,
>>>                          method, valueNodes,
>>> StampFactory.forDeclaredType(null,
>>> method.getSignature().getReturnType(null), false), null));
>>> InvokeNode ink = graph.add(new InvokeNode(callTarget,
>>> BytecodeFrame.UNWIND_BCI));
>>>   graph.start().setNext(ink);
>>>   ink.setNext(returnNode);
>>>             Debug.dump(Debug.BASIC_LOG_LEVEL, graph, "Graph");
>>> and my SubInt method is
>>>
>>>      public static void SubInt(int a, int b) {
>>>          System.out.println("///");
>>>      }
>>> but when I try to test with inittest I get this error :
>>> testPrintBytecodes(com.oracle.graal.compiler.test.tutorial.GraalTutorial)
>>> java.lang.AssertionError: Input not alive
>>>      at
>>>
>>> com.oracle.graal.graph.NodeClass.registerAtInputsAsUsageHelper(NodeClass.java:1257)
>>>      at
>>>
>>> com.oracle.graal.graph.NodeClass.registerAtInputsAsUsage(NodeClass.java:1245)
>>>      at com.oracle.graal.graph.Node.initialize(Node.java:593)
>>>      at com.oracle.graal.graph.Graph.addHelper(Graph.java:446)
>>>      at com.oracle.graal.graph.Graph.add(Graph.java:398)
>>>      at
>>>
>>> com.oracle.graal.compiler.test.tutorial.GraalTutorial.testPrintBytecodes(GraalTutorial.java:278)
>>>      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>      at
>>>
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>>>      at
>>>
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>>      at java.lang.reflect.Method.invoke(Method.java:498)
>>>
>>>
>>>
>>> Thanks again
>>>
>>> Bahram,
>>>
>>>
>