Examples with RopMethod com.android.dx.rop.code.RopMethod used on opensource projects

Example 11 with RopMethod

use of com.android.dx.rop.code.RopMethod in project buck by facebook.

the class BlockDumper method ropDump.

/**
     * Does a registerizing dump.
     *
     * @param meth {@code non-null;} method data to dump
     */
private void ropDump(ConcreteMethod meth) {
    TranslationAdvice advice = DexTranslationAdvice.THE_ONE;
    BytecodeArray code = meth.getCode();
    ByteArray bytes = code.getBytes();
    RopMethod rmeth = Ropper.convert(meth, advice, classFile.getMethods());
    StringBuffer sb = new StringBuffer(2000);
    if (optimize) {
        boolean isStatic = AccessFlags.isStatic(meth.getAccessFlags());
        int paramWidth = computeParamWidth(meth, isStatic);
        rmeth = Optimizer.optimize(rmeth, paramWidth, isStatic, true, advice);
    }
    BasicBlockList blocks = rmeth.getBlocks();
    int[] order = blocks.getLabelsInOrder();
    sb.append("first " + Hex.u2(rmeth.getFirstLabel()) + "\n");
    for (int label : order) {
        BasicBlock bb = blocks.get(blocks.indexOfLabel(label));
        sb.append("block ");
        sb.append(Hex.u2(label));
        sb.append("\n");
        IntList preds = rmeth.labelToPredecessors(label);
        int psz = preds.size();
        for (int i = 0; i < psz; i++) {
            sb.append("  pred ");
            sb.append(Hex.u2(preds.get(i)));
            sb.append("\n");
        }
        InsnList il = bb.getInsns();
        int ilsz = il.size();
        for (int i = 0; i < ilsz; i++) {
            Insn one = il.get(i);
            sb.append("  ");
            sb.append(il.get(i).toHuman());
            sb.append("\n");
        }
        IntList successors = bb.getSuccessors();
        int ssz = successors.size();
        if (ssz == 0) {
            sb.append("  returns\n");
        } else {
            int primary = bb.getPrimarySuccessor();
            for (int i = 0; i < ssz; i++) {
                int succ = successors.get(i);
                sb.append("  next ");
                sb.append(Hex.u2(succ));
                if ((ssz != 1) && (succ == primary)) {
                    sb.append(" *");
                }
                sb.append("\n");
            }
        }
    }
    suppressDump = false;
    setAt(bytes, 0);
    parsed(bytes, 0, bytes.size(), sb.toString());
    suppressDump = true;
}

Example 12 with RopMethod

use of com.android.dx.rop.code.RopMethod in project buck by facebook.

the class SsaDumper method endParsingMember.

/** {@inheritDoc} */
@Override
public void endParsingMember(ByteArray bytes, int offset, String name, String descriptor, Member member) {
    if (!(member instanceof Method)) {
        return;
    }
    if (!shouldDumpMethod(name)) {
        return;
    }
    if ((member.getAccessFlags() & (AccessFlags.ACC_ABSTRACT | AccessFlags.ACC_NATIVE)) != 0) {
        return;
    }
    ConcreteMethod meth = new ConcreteMethod((Method) member, classFile, true, true);
    TranslationAdvice advice = DexTranslationAdvice.THE_ONE;
    RopMethod rmeth = Ropper.convert(meth, advice, classFile.getMethods());
    SsaMethod ssaMeth = null;
    boolean isStatic = AccessFlags.isStatic(meth.getAccessFlags());
    int paramWidth = computeParamWidth(meth, isStatic);
    if (args.ssaStep == null) {
        ssaMeth = Optimizer.debugNoRegisterAllocation(rmeth, paramWidth, isStatic, true, advice, EnumSet.allOf(Optimizer.OptionalStep.class));
    } else if ("edge-split".equals(args.ssaStep)) {
        ssaMeth = Optimizer.debugEdgeSplit(rmeth, paramWidth, isStatic, true, advice);
    } else if ("phi-placement".equals(args.ssaStep)) {
        ssaMeth = Optimizer.debugPhiPlacement(rmeth, paramWidth, isStatic, true, advice);
    } else if ("renaming".equals(args.ssaStep)) {
        ssaMeth = Optimizer.debugRenaming(rmeth, paramWidth, isStatic, true, advice);
    } else if ("dead-code".equals(args.ssaStep)) {
        ssaMeth = Optimizer.debugDeadCodeRemover(rmeth, paramWidth, isStatic, true, advice);
    }
    StringBuffer sb = new StringBuffer(2000);
    sb.append("first ");
    sb.append(Hex.u2(ssaMeth.blockIndexToRopLabel(ssaMeth.getEntryBlockIndex())));
    sb.append('\n');
    ArrayList<SsaBasicBlock> blocks = ssaMeth.getBlocks();
    ArrayList<SsaBasicBlock> sortedBlocks = (ArrayList<SsaBasicBlock>) blocks.clone();
    Collections.sort(sortedBlocks, SsaBasicBlock.LABEL_COMPARATOR);
    for (SsaBasicBlock block : sortedBlocks) {
        sb.append("block ").append(Hex.u2(block.getRopLabel())).append('\n');
        BitSet preds = block.getPredecessors();
        for (int i = preds.nextSetBit(0); i >= 0; i = preds.nextSetBit(i + 1)) {
            sb.append("  pred ");
            sb.append(Hex.u2(ssaMeth.blockIndexToRopLabel(i)));
            sb.append('\n');
        }
        sb.append("  live in:" + block.getLiveInRegs());
        sb.append("\n");
        for (SsaInsn insn : block.getInsns()) {
            sb.append("  ");
            sb.append(insn.toHuman());
            sb.append('\n');
        }
        if (block.getSuccessors().cardinality() == 0) {
            sb.append("  returns\n");
        } else {
            int primary = block.getPrimarySuccessorRopLabel();
            IntList succLabelList = block.getRopLabelSuccessorList();
            int szSuccLabels = succLabelList.size();
            for (int i = 0; i < szSuccLabels; i++) {
                sb.append("  next ");
                sb.append(Hex.u2(succLabelList.get(i)));
                if (szSuccLabels != 1 && primary == succLabelList.get(i)) {
                    sb.append(" *");
                }
                sb.append('\n');
            }
        }
        sb.append("  live out:" + block.getLiveOutRegs());
        sb.append("\n");
    }
    suppressDump = false;
    setAt(bytes, 0);
    parsed(bytes, 0, bytes.size(), sb.toString());
    suppressDump = true;
}

Example 13 with RopMethod

use of com.android.dx.rop.code.RopMethod in project J2ME-Loader by nikita36078.

the class CfTranslator method processMethods.

/**
 * Processes the methods of the given class.
 *
 * @param context {@code non-null;} the state global to this invocation.
 * @param cf {@code non-null;} class being translated
 * @param cfOptions {@code non-null;} options for class translation
 * @param dexOptions {@code non-null;} options for dex output
 * @param out {@code non-null;} output class
 * @param dexFile {@code non-null;} dex output
 */
private static void processMethods(DxContext context, DirectClassFile cf, CfOptions cfOptions, DexOptions dexOptions, ClassDefItem out, DexFile dexFile) {
    CstType thisClass = cf.getThisClass();
    MethodList methods = cf.getMethods();
    int sz = methods.size();
    for (int i = 0; i < sz; i++) {
        Method one = methods.get(i);
        try {
            CstMethodRef meth = new CstMethodRef(thisClass, one.getNat());
            int accessFlags = one.getAccessFlags();
            boolean isStatic = AccessFlags.isStatic(accessFlags);
            boolean isPrivate = AccessFlags.isPrivate(accessFlags);
            boolean isNative = AccessFlags.isNative(accessFlags);
            boolean isAbstract = AccessFlags.isAbstract(accessFlags);
            boolean isConstructor = meth.isInstanceInit() || meth.isClassInit();
            DalvCode code;
            if (isNative || isAbstract) {
                // There's no code for native or abstract methods.
                code = null;
            } else {
                ConcreteMethod concrete = new ConcreteMethod(one, cf, (cfOptions.positionInfo != PositionList.NONE), cfOptions.localInfo);
                TranslationAdvice advice;
                advice = DexTranslationAdvice.THE_ONE;
                RopMethod rmeth = Ropper.convert(concrete, advice, methods, dexOptions);
                RopMethod nonOptRmeth = null;
                int paramSize;
                paramSize = meth.getParameterWordCount(isStatic);
                String canonicalName = thisClass.getClassType().getDescriptor() + "." + one.getName().getString();
                if (cfOptions.optimize && context.optimizerOptions.shouldOptimize(canonicalName)) {
                    if (DEBUG) {
                        System.err.println("Optimizing " + canonicalName);
                    }
                    nonOptRmeth = rmeth;
                    rmeth = Optimizer.optimize(rmeth, paramSize, isStatic, cfOptions.localInfo, advice);
                    if (DEBUG) {
                        context.optimizerOptions.compareOptimizerStep(nonOptRmeth, paramSize, isStatic, cfOptions, advice, rmeth);
                    }
                    if (cfOptions.statistics) {
                        context.codeStatistics.updateRopStatistics(nonOptRmeth, rmeth);
                    }
                }
                LocalVariableInfo locals = null;
                if (cfOptions.localInfo) {
                    locals = LocalVariableExtractor.extract(rmeth);
                }
                code = RopTranslator.translate(rmeth, cfOptions.positionInfo, locals, paramSize, dexOptions);
                if (cfOptions.statistics && nonOptRmeth != null) {
                    updateDexStatistics(context, cfOptions, dexOptions, rmeth, nonOptRmeth, locals, paramSize, concrete.getCode().size());
                }
            }
            // Preserve the synchronized flag as its "declared" variant...
            if (AccessFlags.isSynchronized(accessFlags)) {
                accessFlags |= AccessFlags.ACC_DECLARED_SYNCHRONIZED;
                /*
                     * ...but only native methods are actually allowed to be
                     * synchronized.
                     */
                if (!isNative) {
                    accessFlags &= ~AccessFlags.ACC_SYNCHRONIZED;
                }
            }
            if (isConstructor) {
                accessFlags |= AccessFlags.ACC_CONSTRUCTOR;
            }
            TypeList exceptions = AttributeTranslator.getExceptions(one);
            EncodedMethod mi = new EncodedMethod(meth, accessFlags, code, exceptions);
            if (meth.isInstanceInit() || meth.isClassInit() || isStatic || isPrivate) {
                out.addDirectMethod(mi);
            } else {
                out.addVirtualMethod(mi);
            }
            Annotations annotations = AttributeTranslator.getMethodAnnotations(one);
            if (annotations.size() != 0) {
                out.addMethodAnnotations(meth, annotations, dexFile);
            }
            AnnotationsList list = AttributeTranslator.getParameterAnnotations(one);
            if (list.size() != 0) {
                out.addParameterAnnotations(meth, list, dexFile);
            }
            dexFile.getMethodIds().intern(meth);
        } catch (RuntimeException ex) {
            String msg = "...while processing " + one.getName().toHuman() + " " + one.getDescriptor().toHuman();
            throw ExceptionWithContext.withContext(ex, msg);
        }
    }
}

Example 14 with RopMethod

use of com.android.dx.rop.code.RopMethod in project J2ME-Loader by nikita36078.

the class OptimizerOptions method compareOptimizerStep.

/**
 * Compares the output of the optimizer run normally with a run skipping
 * some optional steps. Results are printed to stderr.
 *
 * @param nonOptRmeth {@code non-null;} origional rop method
 * @param paramSize {@code >= 0;} parameter size of method
 * @param isStatic true if this method has no 'this' pointer argument.
 * @param args {@code non-null;} translator arguments
 * @param advice {@code non-null;} translation advice
 * @param rmeth {@code non-null;} method with all optimization steps run.
 */
public void compareOptimizerStep(RopMethod nonOptRmeth, int paramSize, boolean isStatic, CfOptions args, TranslationAdvice advice, RopMethod rmeth) {
    EnumSet<Optimizer.OptionalStep> steps;
    steps = EnumSet.allOf(Optimizer.OptionalStep.class);
    // This is the step to skip.
    steps.remove(Optimizer.OptionalStep.CONST_COLLECTOR);
    RopMethod skipRopMethod = Optimizer.optimize(nonOptRmeth, paramSize, isStatic, args.localInfo, advice, steps);
    int normalInsns = rmeth.getBlocks().getEffectiveInstructionCount();
    int skipInsns = skipRopMethod.getBlocks().getEffectiveInstructionCount();
    System.err.printf("optimize step regs:(%d/%d/%.2f%%)" + " insns:(%d/%d/%.2f%%)\n", rmeth.getBlocks().getRegCount(), skipRopMethod.getBlocks().getRegCount(), 100.0 * ((skipRopMethod.getBlocks().getRegCount() - rmeth.getBlocks().getRegCount()) / (float) skipRopMethod.getBlocks().getRegCount()), normalInsns, skipInsns, 100.0 * ((skipInsns - normalInsns) / (float) skipInsns));
}

Example 15 with RopMethod

use of com.android.dx.rop.code.RopMethod in project J2ME-Loader by nikita36078.

the class Ropper method getRopMethod.

/**
 * Extracts the resulting {@link RopMethod} from the instance.
 *
 * @return {@code non-null;} the method object
 */
private RopMethod getRopMethod() {
    // Construct the final list of blocks.
    int sz = result.size();
    BasicBlockList bbl = new BasicBlockList(sz);
    for (int i = 0; i < sz; i++) {
        bbl.set(i, result.get(i));
    }
    bbl.setImmutable();
    /*
         * Note: The parameter assignment block is always the first
         * that should be executed, hence the second argument to the
         * constructor.
         */
    return new RopMethod(bbl, getSpecialLabel(PARAM_ASSIGNMENT));
}