Building a graph manually

[Bahram Yarahmadi]

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,
>>
>>