Examples with BytecodeDisassembler org.graalvm.compiler.bytecode.BytecodeDisassembler used on opensource projects

Example 1 with BytecodeDisassembler

use of org.graalvm.compiler.bytecode.BytecodeDisassembler in project graal by oracle.

the class BytecodeParser method toString.

@Override
public String toString() {
    Formatter fmt = new Formatter();
    BytecodeParser bp = this;
    String indent = "";
    while (bp != null) {
        if (bp != this) {
            fmt.format("%n%s", indent);
        }
        fmt.format("%s [bci: %d, intrinsic: %s]", bp.code.asStackTraceElement(bp.bci()), bp.bci(), bp.parsingIntrinsic());
        fmt.format("%n%s", new BytecodeDisassembler().disassemble(bp.code, bp.bci(), bp.bci() + 10));
        bp = bp.parent;
        indent += " ";
    }
    return fmt.toString();
}

Example 2 with BytecodeDisassembler

use of org.graalvm.compiler.bytecode.BytecodeDisassembler in project graal by oracle.

the class GraalTutorial method testGetBytecodes.

/*
     * Example for the Graal API: access the Graal API metadata object for a method.
     */
@Test
public void testGetBytecodes() throws NoSuchMethodException {
    Method reflectionMethod = String.class.getDeclaredMethod("hashCode");
    ResolvedJavaMethod method = metaAccess.lookupJavaMethod(reflectionMethod);
    /*
         * ResolvedJavaMethod provides all information that you want about a method, for example,
         * the bytecodes.
         */
    byte[] bytecodes = method.getCode();
    /*
         * BytecodeDisassembler shows you how to iterate bytecodes, how to access type information,
         * and more.
         */
    String disassembly = new BytecodeDisassembler().disassemble(method);
    /*
         * We don't want test cases to print any output, so we check the validity of the output
         * instead.
         */
    Pattern disassemblyLineRE = Pattern.compile(" *\\d+: [a-z][\\w_]+");
    for (String line : disassembly.split("\\n")) {
        Assert.assertTrue(line, disassemblyLineRE.matcher(line).find());
    }
    Assert.assertTrue(bytecodes.length > 0);
}

Example 3 with BytecodeDisassembler

use of org.graalvm.compiler.bytecode.BytecodeDisassembler in project graal by oracle.

the class GraalOSRTestBase method getBackedgeBCI.

/**
 * Returns the target BCI of the first bytecode backedge. This is where HotSpot triggers
 * on-stack-replacement in case the backedge counter overflows.
 */
private static int getBackedgeBCI(DebugContext debug, ResolvedJavaMethod method) {
    Bytecode code = new ResolvedJavaMethodBytecode(method);
    BytecodeStream stream = new BytecodeStream(code.getCode());
    OptionValues options = debug.getOptions();
    BciBlockMapping bciBlockMapping = BciBlockMapping.create(stream, code, options, debug);
    for (BciBlock block : bciBlockMapping.getBlocks()) {
        if (block.startBci != -1) {
            int bci = block.startBci;
            for (BciBlock succ : block.getSuccessors()) {
                if (succ.startBci != -1) {
                    int succBci = succ.startBci;
                    if (succBci < bci) {
                        // back edge
                        return succBci;
                    }
                }
            }
        }
    }
    TTY.println("Cannot find loop back edge with bytecode loops at:%s", Arrays.toString(bciBlockMapping.getLoopHeaders()));
    TTY.println(new BytecodeDisassembler().disassemble(code));
    return -1;
}

Example 4 with BytecodeDisassembler

use of org.graalvm.compiler.bytecode.BytecodeDisassembler in project graal by oracle.

the class CFGPrinter method printCFG.

/**
 * Prints the specified list of blocks.
 *
 * @param label A label describing the compilation phase that produced the control flow graph.
 * @param blocks The list of blocks to be printed.
 */
public void printCFG(String label, AbstractBlockBase<?>[] blocks, boolean printNodes) {
    if (lir == null) {
        latestScheduling = new NodeMap<>(cfg.getNodeToBlock());
        for (AbstractBlockBase<?> abstractBlock : blocks) {
            if (abstractBlock == null) {
                continue;
            }
            Block block = (Block) abstractBlock;
            Node cur = block.getBeginNode();
            while (true) {
                assert inFixedSchedule(cur) && latestScheduling.get(cur) == block;
                scheduleInputs(cur, block);
                if (cur == block.getEndNode()) {
                    break;
                }
                assert cur.successors().count() == 1;
                cur = cur.successors().first();
            }
        }
    }
    begin("cfg");
    out.print("name \"").print(label).println('"');
    for (AbstractBlockBase<?> block : blocks) {
        printBlock(block, printNodes);
    }
    end("cfg");
    // As a workaround we dump the bytecode after every cfg.
    if (method != null) {
        printBytecodes(new BytecodeDisassembler(false).disassemble(method));
    }
    latestScheduling = null;
}

Example 5 with BytecodeDisassembler

use of org.graalvm.compiler.bytecode.BytecodeDisassembler in project graal by oracle.

the class CFGPrinterObserver method dumpSandboxed.

public void dumpSandboxed(DebugContext debug, Object object, String message) {
    OptionValues options = debug.getOptions();
    boolean dumpFrontend = PrintCFG.getValue(options);
    if (!dumpFrontend && isFrontendObject(object)) {
        return;
    }
    if (cfgPrinter == null) {
        try {
            Path dumpFile = debug.getDumpPath(".cfg", false);
            cfgFile = dumpFile.toFile();
            OutputStream out = new BufferedOutputStream(new FileOutputStream(cfgFile));
            cfgPrinter = new CFGPrinter(out);
        } catch (IOException e) {
            throw (GraalError) new GraalError("Could not open %s", cfgFile == null ? "[null]" : cfgFile.getAbsolutePath()).initCause(e);
        }
    }
    if (!checkMethodScope(debug)) {
        return;
    }
    try {
        if (curMethod instanceof ResolvedJavaMethod) {
            cfgPrinter.method = (ResolvedJavaMethod) curMethod;
        }
        if (object instanceof LIR) {
            cfgPrinter.lir = (LIR) object;
        } else {
            cfgPrinter.lir = debug.contextLookup(LIR.class);
        }
        cfgPrinter.nodeLirGenerator = debug.contextLookup(NodeLIRBuilder.class);
        cfgPrinter.livenessInfo = debug.contextLookup(GlobalLivenessInfo.class);
        cfgPrinter.res = debug.contextLookup(LIRGenerationResult.class);
        if (cfgPrinter.nodeLirGenerator != null) {
            cfgPrinter.target = cfgPrinter.nodeLirGenerator.getLIRGeneratorTool().target();
        }
        if (cfgPrinter.lir != null && cfgPrinter.lir.getControlFlowGraph() instanceof ControlFlowGraph) {
            cfgPrinter.cfg = (ControlFlowGraph) cfgPrinter.lir.getControlFlowGraph();
        }
        CodeCacheProvider codeCache = debug.contextLookup(CodeCacheProvider.class);
        if (codeCache != null) {
            cfgPrinter.target = codeCache.getTarget();
        }
        if (object instanceof BciBlockMapping) {
            BciBlockMapping blockMap = (BciBlockMapping) object;
            cfgPrinter.printCFG(message, blockMap);
            if (blockMap.code.getCode() != null) {
                cfgPrinter.printBytecodes(new BytecodeDisassembler(false).disassemble(blockMap.code));
            }
        } else if (object instanceof LIR) {
            // Currently no node printing for lir
            cfgPrinter.printCFG(message, cfgPrinter.lir.codeEmittingOrder(), false);
            lastLIR = (LIR) object;
            if (delayedIntervals != null) {
                cfgPrinter.printIntervals(message, delayedIntervals);
                delayedIntervals = null;
            }
        } else if (object instanceof ScheduleResult) {
            cfgPrinter.printSchedule(message, (ScheduleResult) object);
        } else if (object instanceof StructuredGraph) {
            if (cfgPrinter.cfg == null) {
                StructuredGraph graph = (StructuredGraph) object;
                cfgPrinter.cfg = ControlFlowGraph.compute(graph, true, true, true, false);
                cfgPrinter.printCFG(message, cfgPrinter.cfg.getBlocks(), true);
            } else {
                cfgPrinter.printCFG(message, cfgPrinter.cfg.getBlocks(), true);
            }
        } else if (object instanceof CompilationResult) {
            final CompilationResult compResult = (CompilationResult) object;
            cfgPrinter.printMachineCode(disassemble(codeCache, compResult, null), message);
        } else if (object instanceof InstalledCode) {
            CompilationResult compResult = debug.contextLookup(CompilationResult.class);
            if (compResult != null) {
                cfgPrinter.printMachineCode(disassemble(codeCache, compResult, (InstalledCode) object), message);
            }
        } else if (object instanceof IntervalDumper) {
            if (lastLIR == cfgPrinter.lir) {
                cfgPrinter.printIntervals(message, (IntervalDumper) object);
            } else {
                if (delayedIntervals != null) {
                    debug.log("Some delayed intervals were dropped (%s)", delayedIntervals);
                }
                delayedIntervals = (IntervalDumper) object;
            }
        } else if (object instanceof AbstractBlockBase<?>[]) {
            cfgPrinter.printCFG(message, (AbstractBlockBase<?>[]) object, false);
        } else if (object instanceof Trace) {
            cfgPrinter.printCFG(message, ((Trace) object).getBlocks(), false);
        } else if (object instanceof TraceBuilderResult) {
            cfgPrinter.printTraces(message, (TraceBuilderResult) object);
        }
    } finally {
        cfgPrinter.target = null;
        cfgPrinter.lir = null;
        cfgPrinter.res = null;
        cfgPrinter.nodeLirGenerator = null;
        cfgPrinter.livenessInfo = null;
        cfgPrinter.cfg = null;
        cfgPrinter.flush();
    }
}