Java Code Examples for com.android.dx.rop.code.RegOps#NEW_INSTANCE

The following examples show how to use com.android.dx.rop.code.RegOps#NEW_INSTANCE . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: EscapeAnalysis.java    From Box with Apache License 2.0 4 votes vote down vote up 
/**
 * Determine the origin of a move result pseudo instruction that generates
 * an object. Creates a new EscapeSet for the new object accordingly.
 *
 * @param insn {@code non-null;} move result pseudo instruction to process
 * @return {@code non-null;} an EscapeSet for the object referred to by the
 * move result pseudo instruction
 */
private EscapeSet processMoveResultPseudoInsn(SsaInsn insn) {
    RegisterSpec result = insn.getResult();
    SsaInsn prevSsaInsn = getInsnForMove(insn);
    int prevOpcode = prevSsaInsn.getOpcode().getOpcode();
    EscapeSet escSet;
    RegisterSpec prevSource;

    switch(prevOpcode) {
       // New instance / Constant
        case RegOps.NEW_INSTANCE:
        case RegOps.CONST:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.NONE);
            break;
        // New array
        case RegOps.NEW_ARRAY:
        case RegOps.FILLED_NEW_ARRAY:
            prevSource = prevSsaInsn.getSources().get(0);
            if (prevSource.getTypeBearer().isConstant()) {
                // New fixed array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
                escSet.replaceableArray = true;
            } else {
                // New variable array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        // Loading a static object
        case RegOps.GET_STATIC:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.GLOBAL);
            break;
        // Type cast / load an object from a field or array
        case RegOps.CHECK_CAST:
        case RegOps.GET_FIELD:
        case RegOps.AGET:
            prevSource = prevSsaInsn.getSources().get(0);
            int setIndex = findSetIndex(prevSource);

            // Set should already exist, try to find it
            if (setIndex != latticeValues.size()) {
                escSet = latticeValues.get(setIndex);
                escSet.regSet.set(result.getReg());
                return escSet;
            }

            // Set not found, must be either null or unknown
            if (prevSource.getType() == Type.KNOWN_NULL) {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
           } else {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        default:
            return null;
    }

    // Add the newly created escSet to the lattice and return it
    latticeValues.add(escSet);
    return escSet;
}
Example 2
Source File: EscapeAnalysis.java    From Box with Apache License 2.0 4 votes vote down vote up 
/**
 * Determine the origin of a move result pseudo instruction that generates
 * an object. Creates a new EscapeSet for the new object accordingly.
 *
 * @param insn {@code non-null;} move result pseudo instruction to process
 * @return {@code non-null;} an EscapeSet for the object referred to by the
 * move result pseudo instruction
 */
private EscapeSet processMoveResultPseudoInsn(SsaInsn insn) {
    RegisterSpec result = insn.getResult();
    SsaInsn prevSsaInsn = getInsnForMove(insn);
    int prevOpcode = prevSsaInsn.getOpcode().getOpcode();
    EscapeSet escSet;
    RegisterSpec prevSource;

    switch(prevOpcode) {
       // New instance / Constant
        case RegOps.NEW_INSTANCE:
        case RegOps.CONST:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.NONE);
            break;
        // New array
        case RegOps.NEW_ARRAY:
        case RegOps.FILLED_NEW_ARRAY:
            prevSource = prevSsaInsn.getSources().get(0);
            if (prevSource.getTypeBearer().isConstant()) {
                // New fixed array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
                escSet.replaceableArray = true;
            } else {
                // New variable array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        // Loading a static object
        case RegOps.GET_STATIC:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.GLOBAL);
            break;
        // Type cast / load an object from a field or array
        case RegOps.CHECK_CAST:
        case RegOps.GET_FIELD:
        case RegOps.AGET:
            prevSource = prevSsaInsn.getSources().get(0);
            int setIndex = findSetIndex(prevSource);

            // Set should already exist, try to find it
            if (setIndex != latticeValues.size()) {
                escSet = latticeValues.get(setIndex);
                escSet.regSet.set(result.getReg());
                return escSet;
            }

            // Set not found, must be either null or unknown
            if (prevSource.getType() == Type.KNOWN_NULL) {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
           } else {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        default:
            return null;
    }

    // Add the newly created escSet to the lattice and return it
    latticeValues.add(escSet);
    return escSet;
}
Example 3
Source File: EscapeAnalysis.java    From J2ME-Loader with Apache License 2.0 4 votes vote down vote up 
/**
 * Determine the origin of a move result pseudo instruction that generates
 * an object. Creates a new EscapeSet for the new object accordingly.
 *
 * @param insn {@code non-null;} move result pseudo instruction to process
 * @return {@code non-null;} an EscapeSet for the object referred to by the
 * move result pseudo instruction
 */
private EscapeSet processMoveResultPseudoInsn(SsaInsn insn) {
    RegisterSpec result = insn.getResult();
    SsaInsn prevSsaInsn = getInsnForMove(insn);
    int prevOpcode = prevSsaInsn.getOpcode().getOpcode();
    EscapeSet escSet;
    RegisterSpec prevSource;

    switch(prevOpcode) {
       // New instance / Constant
        case RegOps.NEW_INSTANCE:
        case RegOps.CONST:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.NONE);
            break;
        // New array
        case RegOps.NEW_ARRAY:
        case RegOps.FILLED_NEW_ARRAY:
            prevSource = prevSsaInsn.getSources().get(0);
            if (prevSource.getTypeBearer().isConstant()) {
                // New fixed array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
                escSet.replaceableArray = true;
            } else {
                // New variable array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        // Loading a static object
        case RegOps.GET_STATIC:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.GLOBAL);
            break;
        // Type cast / load an object from a field or array
        case RegOps.CHECK_CAST:
        case RegOps.GET_FIELD:
        case RegOps.AGET:
            prevSource = prevSsaInsn.getSources().get(0);
            int setIndex = findSetIndex(prevSource);

            // Set should already exist, try to find it
            if (setIndex != latticeValues.size()) {
                escSet = latticeValues.get(setIndex);
                escSet.regSet.set(result.getReg());
                return escSet;
            }

            // Set not found, must be either null or unknown
            if (prevSource.getType() == Type.KNOWN_NULL) {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
           } else {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        default:
            return null;
    }

    // Add the newly created escSet to the lattice and return it
    latticeValues.add(escSet);
    return escSet;
}
Example 4
Source File: EscapeAnalysis.java    From buck with Apache License 2.0 4 votes vote down vote up 
/**
 * Determine the origin of a move result pseudo instruction that generates
 * an object. Creates a new EscapeSet for the new object accordingly.
 *
 * @param insn {@code non-null;} move result pseudo instruction to process
 * @return {@code non-null;} an EscapeSet for the object referred to by the
 * move result pseudo instruction
 */
private EscapeSet processMoveResultPseudoInsn(SsaInsn insn) {
    RegisterSpec result = insn.getResult();
    SsaInsn prevSsaInsn = getInsnForMove(insn);
    int prevOpcode = prevSsaInsn.getOpcode().getOpcode();
    EscapeSet escSet;
    RegisterSpec prevSource;

    switch(prevOpcode) {
       // New instance / Constant
        case RegOps.NEW_INSTANCE:
        case RegOps.CONST:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.NONE);
            break;
        // New array
        case RegOps.NEW_ARRAY:
        case RegOps.FILLED_NEW_ARRAY:
            prevSource = prevSsaInsn.getSources().get(0);
            if (prevSource.getTypeBearer().isConstant()) {
                // New fixed array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
                escSet.replaceableArray = true;
            } else {
                // New variable array
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        // Loading a static object
        case RegOps.GET_STATIC:
            escSet = new EscapeSet(result.getReg(), regCount,
                                       EscapeState.GLOBAL);
            break;
        // Type cast / load an object from a field or array
        case RegOps.CHECK_CAST:
        case RegOps.GET_FIELD:
        case RegOps.AGET:
            prevSource = prevSsaInsn.getSources().get(0);
            int setIndex = findSetIndex(prevSource);

            // Set should already exist, try to find it
            if (setIndex != latticeValues.size()) {
                escSet = latticeValues.get(setIndex);
                escSet.regSet.set(result.getReg());
                return escSet;
            }

            // Set not found, must be either null or unknown
            if (prevSource.getType() == Type.KNOWN_NULL) {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.NONE);
           } else {
                escSet = new EscapeSet(result.getReg(), regCount,
                                           EscapeState.GLOBAL);
            }
            break;
        default:
            return null;
    }

    // Add the newly created escSet to the lattice and return it
    latticeValues.add(escSet);
    return escSet;
}