Example usage for org.objectweb.asm Opcodes IUSHR

List of usage examples for org.objectweb.asm Opcodes IUSHR

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes IUSHR.

Prototype

int IUSHR

To view the source code for org.objectweb.asm Opcodes IUSHR.

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Usage

From source file:com.google.devtools.build.android.desugar.BytecodeTypeInference.java

License:Open Source License

@Override
public void visitInsn(int opcode) {
    switch (opcode) {
    case Opcodes.NOP:
    case Opcodes.INEG:
    case Opcodes.LNEG:
    case Opcodes.FNEG:
    case Opcodes.DNEG:
    case Opcodes.I2B:
    case Opcodes.I2C:
    case Opcodes.I2S:
    case Opcodes.RETURN:
        break;/*from ww w. j a  v  a  2 s.c  om*/
    case Opcodes.ACONST_NULL:
        push(InferredType.NULL);
        break;
    case Opcodes.ICONST_M1:
    case Opcodes.ICONST_0:
    case Opcodes.ICONST_1:
    case Opcodes.ICONST_2:
    case Opcodes.ICONST_3:
    case Opcodes.ICONST_4:
    case Opcodes.ICONST_5:
        push(InferredType.INT);
        break;
    case Opcodes.LCONST_0:
    case Opcodes.LCONST_1:
        push(InferredType.LONG);
        push(InferredType.TOP);
        break;
    case Opcodes.FCONST_0:
    case Opcodes.FCONST_1:
    case Opcodes.FCONST_2:
        push(InferredType.FLOAT);
        break;
    case Opcodes.DCONST_0:
    case Opcodes.DCONST_1:
        push(InferredType.DOUBLE);
        push(InferredType.TOP);
        break;
    case Opcodes.IALOAD:
    case Opcodes.BALOAD:
    case Opcodes.CALOAD:
    case Opcodes.SALOAD:
        pop(2);
        push(InferredType.INT);
        break;
    case Opcodes.LALOAD:
    case Opcodes.D2L:
        pop(2);
        push(InferredType.LONG);
        push(InferredType.TOP);
        break;
    case Opcodes.DALOAD:
    case Opcodes.L2D:
        pop(2);
        push(InferredType.DOUBLE);
        push(InferredType.TOP);
        break;
    case Opcodes.AALOAD:
        InferredType arrayType = pop(2);
        InferredType elementType = arrayType.getElementTypeIfArrayOrThrow();
        push(elementType);
        break;
    case Opcodes.IASTORE:
    case Opcodes.BASTORE:
    case Opcodes.CASTORE:
    case Opcodes.SASTORE:
    case Opcodes.FASTORE:
    case Opcodes.AASTORE:
        pop(3);
        break;
    case Opcodes.LASTORE:
    case Opcodes.DASTORE:
        pop(4);
        break;
    case Opcodes.POP:
    case Opcodes.IRETURN:
    case Opcodes.FRETURN:
    case Opcodes.ARETURN:
    case Opcodes.ATHROW:
    case Opcodes.MONITORENTER:
    case Opcodes.MONITOREXIT:
        pop();
        break;
    case Opcodes.POP2:
    case Opcodes.LRETURN:
    case Opcodes.DRETURN:
        pop(2);
        break;
    case Opcodes.DUP:
        push(top());
        break;
    case Opcodes.DUP_X1: {
        InferredType top = pop();
        InferredType next = pop();
        push(top);
        push(next);
        push(top);
        break;
    }
    case Opcodes.DUP_X2: {
        InferredType top = pop();
        InferredType next = pop();
        InferredType bottom = pop();
        push(top);
        push(bottom);
        push(next);
        push(top);
        break;
    }
    case Opcodes.DUP2: {
        InferredType top = pop();
        InferredType next = pop();
        push(next);
        push(top);
        push(next);
        push(top);
        break;
    }
    case Opcodes.DUP2_X1: {
        InferredType top = pop();
        InferredType next = pop();
        InferredType bottom = pop();
        push(next);
        push(top);
        push(bottom);
        push(next);
        push(top);
        break;
    }
    case Opcodes.DUP2_X2: {
        InferredType t1 = pop();
        InferredType t2 = pop();
        InferredType t3 = pop();
        InferredType t4 = pop();
        push(t2);
        push(t1);
        push(t4);
        push(t3);
        push(t2);
        push(t1);
        break;
    }
    case Opcodes.SWAP: {
        InferredType top = pop();
        InferredType next = pop();
        push(top);
        push(next);
        break;
    }
    case Opcodes.IADD:
    case Opcodes.ISUB:
    case Opcodes.IMUL:
    case Opcodes.IDIV:
    case Opcodes.IREM:
    case Opcodes.ISHL:
    case Opcodes.ISHR:
    case Opcodes.IUSHR:
    case Opcodes.IAND:
    case Opcodes.IOR:
    case Opcodes.IXOR:
    case Opcodes.L2I:
    case Opcodes.D2I:
    case Opcodes.FCMPL:
    case Opcodes.FCMPG:
        pop(2);
        push(InferredType.INT);
        break;

    case Opcodes.LADD:
    case Opcodes.LSUB:
    case Opcodes.LMUL:
    case Opcodes.LDIV:
    case Opcodes.LREM:
    case Opcodes.LAND:
    case Opcodes.LOR:
    case Opcodes.LXOR:
        pop(4);
        push(InferredType.LONG);
        push(InferredType.TOP);
        break;

    case Opcodes.LSHL:
    case Opcodes.LSHR:
    case Opcodes.LUSHR:
        pop(3);
        push(InferredType.LONG);
        push(InferredType.TOP);
        break;
    case Opcodes.I2L:
    case Opcodes.F2L:
        pop();
        push(InferredType.LONG);
        push(InferredType.TOP);
        break;
    case Opcodes.I2F:
        pop();
        push(InferredType.FLOAT);
        break;

    case Opcodes.LCMP:
    case Opcodes.DCMPG:
    case Opcodes.DCMPL:
        pop(4);
        push(InferredType.INT);
        break;

    case Opcodes.I2D:
    case Opcodes.F2D:
        pop();
        push(InferredType.DOUBLE);
        push(InferredType.TOP);
        break;
    case Opcodes.F2I:
    case Opcodes.ARRAYLENGTH:
        pop();
        push(InferredType.INT);
        break;
    case Opcodes.FALOAD:
    case Opcodes.FADD:
    case Opcodes.FSUB:
    case Opcodes.FMUL:
    case Opcodes.FDIV:
    case Opcodes.FREM:
    case Opcodes.L2F:
    case Opcodes.D2F:
        pop(2);
        push(InferredType.FLOAT);
        break;

    case Opcodes.DADD:
    case Opcodes.DSUB:
    case Opcodes.DMUL:
    case Opcodes.DDIV:
    case Opcodes.DREM:
        pop(4);
        push(InferredType.DOUBLE);
        push(InferredType.TOP);
        break;
    default:
        throw new RuntimeException("Unhandled opcode " + opcode);
    }
    super.visitInsn(opcode);
}

From source file:com.google.test.metric.asm.MethodVisitorBuilder.java

License:Apache License

public void visitInsn(final int opcode) {
    switch (opcode) {
    case Opcodes.ACONST_NULL:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new Load(lineNumber, new Constant(null, JavaType.OBJECT)));
            }// ww w .j a v  a2s.c om
        });
        break;
    case Opcodes.ICONST_M1:
    case Opcodes.ICONST_0:
    case Opcodes.ICONST_1:
    case Opcodes.ICONST_2:
    case Opcodes.ICONST_3:
    case Opcodes.ICONST_4:
    case Opcodes.ICONST_5:
        loadConstant(opcode - Opcodes.ICONST_M1 - 1, JavaType.INT);
        break;
    case Opcodes.LCONST_0:
    case Opcodes.LCONST_1:
        loadConstant(opcode - Opcodes.LCONST_0, JavaType.LONG);
        break;
    case Opcodes.FCONST_0:
    case Opcodes.FCONST_1:
    case Opcodes.FCONST_2:
        loadConstant(opcode - Opcodes.FCONST_0, JavaType.FLOAT);
        break;
    case Opcodes.DCONST_0:
    case Opcodes.DCONST_1:
        loadConstant(opcode - Opcodes.DCONST_0, JavaType.DOUBLE);
        break;
    case Opcodes.IALOAD:
        recordArrayLoad(JavaType.INT);
        break;
    case Opcodes.LALOAD:
        recordArrayLoad(JavaType.LONG);
        break;
    case Opcodes.FALOAD:
        recordArrayLoad(JavaType.FLOAT);
        break;
    case Opcodes.DALOAD:
        recordArrayLoad(JavaType.DOUBLE);
        break;
    case Opcodes.AALOAD:
        recordArrayLoad(JavaType.OBJECT);
        break;
    case Opcodes.BALOAD:
        recordArrayLoad(JavaType.BYTE);
        break;
    case Opcodes.CALOAD:
        recordArrayLoad(JavaType.CHAR);
        break;
    case Opcodes.SALOAD:
        recordArrayLoad(JavaType.SHORT);
        break;

    case Opcodes.IASTORE:
        recordArrayStore(JavaType.INT);
        break;
    case Opcodes.LASTORE:
        recordArrayStore(JavaType.LONG);
        break;
    case Opcodes.FASTORE:
        recordArrayStore(JavaType.FLOAT);
        break;
    case Opcodes.DASTORE:
        recordArrayStore(JavaType.DOUBLE);
        break;
    case Opcodes.AASTORE:
        recordArrayStore(JavaType.OBJECT);
        break;
    case Opcodes.BASTORE:
        recordArrayStore(JavaType.BYTE);
        break;
    case Opcodes.CASTORE:
        recordArrayStore(JavaType.CHAR);
        break;
    case Opcodes.SASTORE:
        recordArrayStore(JavaType.SHORT);
        break;
    case Opcodes.POP:
    case Opcodes.POP2:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new Pop(lineNumber, opcode - Opcodes.POP + 1));
            }
        });
        break;
    case Opcodes.DUP:
    case Opcodes.DUP_X1:
    case Opcodes.DUP_X2:
        recorder.add(new Runnable() {
            public void run() {
                int offset = opcode - Opcodes.DUP;
                block.addOp(new Duplicate(lineNumber, offset));
            }
        });
        break;
    case Opcodes.DUP2:
    case Opcodes.DUP2_X1:
    case Opcodes.DUP2_X2:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new Duplicate2(lineNumber, opcode - Opcodes.DUP2));
            }
        });
        break;
    case Opcodes.SWAP:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new Swap(lineNumber));
            }
        });
        break;
    case Opcodes.IRETURN:
        _return(JavaType.INT);
        break;
    case Opcodes.FRETURN:
        _return(JavaType.FLOAT);
        break;
    case Opcodes.ARETURN:
        _return(JavaType.OBJECT);
        break;
    case Opcodes.LRETURN:
        _return(JavaType.LONG);
        break;
    case Opcodes.DRETURN:
        _return(JavaType.DOUBLE);
        break;
    case Opcodes.ATHROW:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new Throw(lineNumber));
            }
        });
        break;
    case Opcodes.RETURN:
        _return(JavaType.VOID);
        break;
    case Opcodes.LCMP:
        operation("cmp", JavaType.LONG, JavaType.LONG, JavaType.INT);
        break;
    case Opcodes.FCMPL:
        operation("cmpl", JavaType.FLOAT, JavaType.FLOAT, JavaType.INT);
        break;
    case Opcodes.FCMPG:
        operation("cmpg", JavaType.FLOAT, JavaType.FLOAT, JavaType.INT);
        break;
    case Opcodes.DCMPL:
        operation("cmpl", JavaType.DOUBLE, JavaType.DOUBLE, JavaType.INT);
        break;
    case Opcodes.DCMPG:
        operation("cmpg", JavaType.DOUBLE, JavaType.DOUBLE, JavaType.INT);
        break;
    case Opcodes.LSHL:
        operation("shl", JavaType.LONG, JavaType.INT, JavaType.LONG);
        break;
    case Opcodes.LSHR:
        operation("shr", JavaType.LONG, JavaType.INT, JavaType.LONG);
        break;
    case Opcodes.LUSHR:
        operation("ushr", JavaType.LONG, JavaType.INT, JavaType.LONG);
        break;
    case Opcodes.LADD:
        operation("add", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.LSUB:
        operation("sub", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.LDIV:
        operation("div", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.LREM:
        operation("rem", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.LAND:
        operation("and", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.LOR:
        operation("or", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.LXOR:
        operation("xor", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.LMUL:
        operation("mul", JavaType.LONG, JavaType.LONG, JavaType.LONG);
        break;
    case Opcodes.FADD:
        operation("add", JavaType.FLOAT, JavaType.FLOAT, JavaType.FLOAT);
        break;
    case Opcodes.FSUB:
        operation("sub", JavaType.FLOAT, JavaType.FLOAT, JavaType.FLOAT);
        break;
    case Opcodes.FMUL:
        operation("mul", JavaType.FLOAT, JavaType.FLOAT, JavaType.FLOAT);
        break;
    case Opcodes.FREM:
        operation("rem", JavaType.FLOAT, JavaType.FLOAT, JavaType.FLOAT);
        break;
    case Opcodes.FDIV:
        operation("div", JavaType.FLOAT, JavaType.FLOAT, JavaType.FLOAT);
        break;
    case Opcodes.ISHL:
        operation("shl", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.ISHR:
        operation("shr", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IUSHR:
        operation("ushr", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IADD:
        operation("add", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.ISUB:
        operation("sub", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IMUL:
        operation("mul", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IDIV:
        operation("div", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IREM:
        operation("rem", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IAND:
        operation("and", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IOR:
        operation("or", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.IXOR:
        operation("xor", JavaType.INT, JavaType.INT, JavaType.INT);
        break;
    case Opcodes.DSUB:
        operation("sub", JavaType.DOUBLE, JavaType.DOUBLE, JavaType.DOUBLE);
        break;
    case Opcodes.DADD:
        operation("add", JavaType.DOUBLE, JavaType.DOUBLE, JavaType.DOUBLE);
        break;
    case Opcodes.DMUL:
        operation("mul", JavaType.DOUBLE, JavaType.DOUBLE, JavaType.DOUBLE);
        break;
    case Opcodes.DDIV:
        operation("div", JavaType.DOUBLE, JavaType.DOUBLE, JavaType.DOUBLE);
        break;
    case Opcodes.DREM:
        operation("rem", JavaType.DOUBLE, JavaType.DOUBLE, JavaType.DOUBLE);
        break;
    case Opcodes.L2I:
        convert(JavaType.LONG, JavaType.INT);
        break;
    case Opcodes.L2F:
        convert(JavaType.LONG, JavaType.FLOAT);
        break;
    case Opcodes.L2D:
        convert(JavaType.LONG, JavaType.DOUBLE);
        break;
    case Opcodes.LNEG:
        operation("neg", JavaType.LONG, null, JavaType.LONG);
        break;
    case Opcodes.F2I:
        convert(JavaType.FLOAT, JavaType.INT);
        break;
    case Opcodes.F2L:
        convert(JavaType.FLOAT, JavaType.LONG);
        break;
    case Opcodes.FNEG:
        operation("neg", JavaType.FLOAT, null, JavaType.FLOAT);
        break;
    case Opcodes.F2D:
        convert(JavaType.FLOAT, JavaType.DOUBLE);
        break;
    case Opcodes.D2I:
        convert(JavaType.DOUBLE, JavaType.INT);
        break;
    case Opcodes.D2L:
        convert(JavaType.DOUBLE, JavaType.LONG);
        break;
    case Opcodes.D2F:
        convert(JavaType.DOUBLE, JavaType.FLOAT);
        break;
    case Opcodes.DNEG:
        operation("neg", JavaType.DOUBLE, null, JavaType.DOUBLE);
        break;
    case Opcodes.I2L:
        convert(JavaType.INT, JavaType.LONG);
        break;
    case Opcodes.I2F:
        convert(JavaType.INT, JavaType.FLOAT);
        break;
    case Opcodes.I2D:
        convert(JavaType.INT, JavaType.DOUBLE);
        break;
    case Opcodes.I2B:
        convert(JavaType.INT, JavaType.BYTE);
        break;
    case Opcodes.I2C:
        convert(JavaType.INT, JavaType.CHAR);
        break;
    case Opcodes.I2S:
        convert(JavaType.INT, JavaType.SHORT);
        break;
    case Opcodes.INEG:
        operation("neg", JavaType.INT, null, JavaType.INT);
        break;
    case Opcodes.ARRAYLENGTH:
        operation("arraylength", JavaType.OBJECT.toArray(), null, JavaType.INT);
        break;
    case Opcodes.MONITORENTER:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new MonitorEnter(lineNumber));
            }
        });
        break;
    case Opcodes.MONITOREXIT:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new MonitorExit(lineNumber));
            }
        });
        break;
    case Opcodes.NOP:
        recorder.add(new Runnable() {
            public void run() {
                block.addOp(new Transform(lineNumber, "NOP", null, null, null));
            }
        });
    }
}

From source file:com.mebigfatguy.junitflood.jvm.OperandStack.java

License:Apache License

public void performInsn(int opcode) {
    switch (opcode) {
    case Opcodes.NOP:
        break;//  ww w. jav a  2 s  .co  m

    case Opcodes.ACONST_NULL: {
        Operand op = new Operand();
        op.setNull(true);
        push(op);
    }
        break;

    case Opcodes.ICONST_M1: {
        Operand op = new Operand();
        op.setConstant(Integer.valueOf(-1));
        push(op);
    }
        break;

    case Opcodes.ICONST_0: {
        Operand op = new Operand();
        op.setConstant(Integer.valueOf(0));
        push(op);
    }
        break;

    case Opcodes.ICONST_1: {
        Operand op = new Operand();
        op.setConstant(Integer.valueOf(1));
        push(op);
    }
        break;

    case Opcodes.ICONST_2: {
        Operand op = new Operand();
        op.setConstant(Integer.valueOf(2));
        push(op);
    }
        break;

    case Opcodes.ICONST_3: {
        Operand op = new Operand();
        op.setConstant(Integer.valueOf(3));
        push(op);
    }
        break;

    case Opcodes.ICONST_4: {
        Operand op = new Operand();
        op.setConstant(Integer.valueOf(4));
        push(op);
    }
        break;

    case Opcodes.ICONST_5: {
        Operand op = new Operand();
        op.setConstant(Integer.valueOf(5));
        push(op);
    }
        break;

    case Opcodes.LCONST_0: {
        Operand op = new Operand();
        op.setConstant(Long.valueOf(0));
        push(op);
    }
        break;

    case Opcodes.LCONST_1: {
        Operand op = new Operand();
        op.setConstant(Long.valueOf(1));
        push(op);
    }
        break;

    case Opcodes.FCONST_0: {
        Operand op = new Operand();
        op.setConstant(Float.valueOf(0));
        push(op);
    }
        break;

    case Opcodes.FCONST_1: {
        Operand op = new Operand();
        op.setConstant(Float.valueOf(1));
        push(op);
    }
        break;

    case Opcodes.FCONST_2: {
        Operand op = new Operand();
        op.setConstant(Float.valueOf(2));
        push(op);
    }
        break;

    case Opcodes.DCONST_0: {
        Operand op = new Operand();
        op.setConstant(Double.valueOf(0));
        push(op);
    }
        break;

    case Opcodes.DCONST_1: {
        Operand op = new Operand();
        op.setConstant(Double.valueOf(1));
        push(op);
    }
        break;

    case Opcodes.IALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.FALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("F");
        push(op);
    }
        break;

    case Opcodes.DALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("D");
        push(op);
    }
        break;

    case Opcodes.AALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("Ljava/lang/Object;");
        push(op);
    }
        break;

    case Opcodes.BALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("B");
        push(op);
    }
        break;

    case Opcodes.CALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("C");
        push(op);
    }
        break;

    case Opcodes.SALOAD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("S");
        push(op);
    }
        break;

    case Opcodes.IASTORE:
    case Opcodes.LASTORE:
    case Opcodes.FASTORE:
    case Opcodes.DASTORE:
    case Opcodes.AASTORE:
    case Opcodes.BASTORE:
    case Opcodes.CASTORE:
    case Opcodes.SASTORE:
        if (stack.size() < 2) {
            stack.clear();
        } else {
            Operand value = stack.remove(stack.size() - 1);
            Operand reg = stack.remove(stack.size() - 1);
            registers.put(Integer.valueOf(reg.getRegister()), value);
        }
        break;

    case Opcodes.POP:
        pop();
        break;

    case Opcodes.POP2:
        pop2();
        break;

    case Opcodes.DUP:
        if (!stack.isEmpty()) {
            Operand op = stack.get(stack.size() - 1);
            push(op);
        }
        break;

    case Opcodes.DUP_X1:
        if (stack.size() >= 2) {
            Operand op = stack.get(stack.size() - 1);
            stack.add(stack.size() - 2, op);
        }
        break;

    case Opcodes.DUP_X2:
        if (stack.size() >= 2) {
            Operand op = stack.get(stack.size() - 2);
            String sig = op.getSignature();
            op = stack.get(stack.size() - 1);
            if ("J".equals(sig) || "D".equals(sig)) {
                stack.add(stack.size() - 2, op);
            } else if (stack.size() >= 3) {
                stack.add(stack.size() - 3, op);
            }
        }
        break;

    case Opcodes.DUP2:
        if (stack.size() >= 2) {
            stack.add(stack.get(stack.size() - 2));
            stack.add(stack.get(stack.size() - 2));
        }
        break;

    case Opcodes.DUP2_X1:
        if (stack.size() >= 1) {
            Operand op = stack.get(stack.size() - 1);
            String sig = op.getSignature();
            if ("J".equals(sig) || "D".equals(sig)) {
                if (stack.size() >= 3) {
                    stack.add(stack.size() - 3, op);
                    op = stack.get(stack.size() - 2);
                    stack.add(stack.size() - 4, op);
                }
            } else {
                if (stack.size() >= 2) {
                    stack.add(stack.size() - 2, op);
                }
            }
        }
        break;

    case Opcodes.DUP2_X2:
        if (stack.size() >= 1) {
            Operand op = stack.get(stack.size() - 1);
            String sig = op.getSignature();
            if ("J".equals(sig) || "D".equals(sig)) {
                if (stack.size() >= 2) {
                    op = stack.get(stack.size() - 2);
                    sig = op.getSignature();
                    if ("J".equals(sig) || "D".equals(sig)) {
                        op = stack.get(stack.size() - 1);
                        stack.add(stack.size() - 2, op);
                    } else {
                        if (stack.size() >= 3) {
                            op = stack.get(stack.size() - 1);
                            stack.add(stack.size() - 3, op);
                        }
                    }
                }
            } else {
                if (stack.size() >= 3) {
                    op = stack.get(stack.size() - 3);
                    sig = op.getSignature();
                    if ("J".equals(sig) || "D".equals(sig)) {
                        op = stack.get(stack.size() - 2);
                        stack.add(stack.size() - 3, op);
                        op = stack.get(stack.size() - 1);
                        stack.add(stack.size() - 3, op);
                    } else {
                        if (stack.size() >= 4) {
                            op = stack.get(stack.size() - 2);
                            stack.add(stack.size() - 4, op);
                            op = stack.get(stack.size() - 1);
                            stack.add(stack.size() - 4, op);
                        }
                    }
                }
            }
        }
        break;

    case Opcodes.SWAP:
        if (stack.size() >= 2) {
            Operand op = stack.remove(stack.size() - 1);
            stack.add(stack.size() - 1, op);
        }
        break;

    case Opcodes.IADD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LADD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.FADD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("F");
        push(op);
    }
        break;

    case Opcodes.DADD: {
        pop2();
        Operand op = new Operand();
        op.setSignature("D");
        push(op);
    }
        break;

    case Opcodes.ISUB: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LSUB: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.FSUB: {
        pop2();
        Operand op = new Operand();
        op.setSignature("F");
        push(op);
    }
        break;

    case Opcodes.DSUB: {
        pop2();
        Operand op = new Operand();
        op.setSignature("D");
        push(op);
    }
        break;

    case Opcodes.IMUL: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LMUL: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.FMUL: {
        pop2();
        Operand op = new Operand();
        op.setSignature("F");
        push(op);
    }
        break;

    case Opcodes.DMUL: {
        pop2();
        Operand op = new Operand();
        op.setSignature("D");
        push(op);
    }
        break;

    case Opcodes.IDIV: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LDIV: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.FDIV: {
        pop2();
        Operand op = new Operand();
        op.setSignature("F");
        push(op);
    }
        break;

    case Opcodes.DDIV: {
        pop2();
        Operand op = new Operand();
        op.setSignature("D");
        push(op);
    }
        break;

    case Opcodes.IREM: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LREM: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.FREM: {
        pop2();
        Operand op = new Operand();
        op.setSignature("F");
        push(op);
    }
        break;

    case Opcodes.DREM: {
        pop2();
        Operand op = new Operand();
        op.setSignature("D");
        push(op);
    }
        break;

    case Opcodes.INEG: {
        pop();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LNEG: {
        pop();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.FNEG: {
        pop();
        Operand op = new Operand();
        op.setSignature("F");
        push(op);
    }
        break;

    case Opcodes.DNEG: {
        pop();
        Operand op = new Operand();
        op.setSignature("D");
        push(op);
    }
        break;

    case Opcodes.ISHL: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LSHL: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.ISHR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LSHR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.IUSHR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LUSHR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.IAND: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LAND: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.IOR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LOR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.IXOR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.LXOR: {
        pop2();
        Operand op = new Operand();
        op.setSignature("J");
        push(op);
    }
        break;

    case Opcodes.I2L: {
        Operand lop = new Operand();
        lop.setSignature("J");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                lop.setConstant(Long.valueOf(((Integer) o).longValue()));
            }
        }
        push(lop);
    }
        break;

    case Opcodes.I2F: {
        Operand fop = new Operand();
        fop.setSignature("F");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                fop.setConstant(Float.valueOf(((Integer) o).floatValue()));
            }
        }
        push(fop);
    }
        break;

    case Opcodes.I2D: {
        Operand dop = new Operand();
        dop.setSignature("D");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                dop.setConstant(Double.valueOf(((Integer) o).doubleValue()));
            }
        }
        push(dop);
    }
        break;

    case Opcodes.L2I: {
        Operand iop = new Operand();
        iop.setSignature("I");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                iop.setConstant(Integer.valueOf(((Long) o).intValue()));
            }
        }
        push(iop);
    }
        break;

    case Opcodes.L2F: {
        Operand fop = new Operand();
        fop.setSignature("F");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                fop.setConstant(Float.valueOf(((Long) o).floatValue()));
            }
        }
        push(fop);
    }
        break;

    case Opcodes.L2D: {
        Operand dop = new Operand();
        dop.setSignature("D");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                dop.setConstant(Double.valueOf(((Long) o).doubleValue()));
            }
        }
        push(dop);
    }
        break;

    case Opcodes.F2I: {
        Operand iop = new Operand();
        iop.setSignature("I");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                iop.setConstant(Integer.valueOf(((Float) o).intValue()));
            }
        }
        push(iop);
    }
        break;

    case Opcodes.F2L: {
        Operand lop = new Operand();
        lop.setSignature("J");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                lop.setConstant(Long.valueOf(((Float) o).longValue()));
            }
        }
        push(lop);
    }
        break;

    case Opcodes.F2D: {
        Operand dop = new Operand();
        dop.setSignature("D");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                dop.setConstant(Double.valueOf(((Float) o).doubleValue()));
            }
        }
        push(dop);
    }
        break;

    case Opcodes.D2I: {
        Operand iop = new Operand();
        iop.setSignature("I");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                iop.setConstant(Integer.valueOf(((Double) o).intValue()));
            }
        }
        push(iop);
    }
        break;

    case Opcodes.D2L: {
        Operand lop = new Operand();
        lop.setSignature("J");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                lop.setConstant(Long.valueOf(((Double) o).longValue()));
            }
        }
        push(lop);
    }
        break;

    case Opcodes.D2F: {
        Operand fop = new Operand();
        fop.setSignature("F");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                fop.setConstant(Float.valueOf(((Double) o).floatValue()));
            }
        }
        push(fop);
    }
        break;

    case Opcodes.I2B: {
        Operand bop = new Operand();
        bop.setSignature("B");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                bop.setConstant(Byte.valueOf(((Integer) o).byteValue()));
            }
        }
        push(bop);
    }
        break;

    case Opcodes.I2C: {
        Operand cop = new Operand();
        cop.setSignature("C");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                cop.setConstant(Character.valueOf((char) ((Integer) o).intValue()));
            }
        }
        push(cop);
    }
        break;

    case Opcodes.I2S: {
        Operand sop = new Operand();
        sop.setSignature("S");
        if (!stack.isEmpty()) {
            Operand op = stack.remove(stack.size() - 1);
            Object o = op.getConstant();
            if (o != null) {
                sop.setConstant(Short.valueOf((short) ((Integer) o).intValue()));
            }
        }
        push(sop);
    }
        break;

    case Opcodes.LCMP:
    case Opcodes.FCMPL:
    case Opcodes.FCMPG:
    case Opcodes.DCMPL:
    case Opcodes.DCMPG: {
        pop2();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.IRETURN:
    case Opcodes.LRETURN:
    case Opcodes.FRETURN:
    case Opcodes.DRETURN:
    case Opcodes.ARETURN:
        pop();
        break;

    case Opcodes.RETURN:
        //nop
        break;

    case Opcodes.ARRAYLENGTH: {
        pop();
        Operand op = new Operand();
        op.setSignature("I");
        push(op);
    }
        break;

    case Opcodes.ATHROW:
    case Opcodes.MONITORENTER:
    case Opcodes.MONITOREXIT:
        pop();
        break;
    }
}

From source file:com.trigersoft.jaque.expression.ExpressionMethodVisitor.java

License:Apache License

@Override
public void visitInsn(int opcode) {
    Expression e;//from   ww w .  j a v a 2 s.com
    Expression first;
    Expression second;
    switch (opcode) {
    case Opcodes.ARRAYLENGTH:
        e = Expression.arrayLength(_exprStack.pop());
        break;
    case Opcodes.ACONST_NULL:
        e = Expression.constant(null, Object.class);
        break;
    case Opcodes.IALOAD:
    case Opcodes.LALOAD:
    case Opcodes.FALOAD:
    case Opcodes.DALOAD:
    case Opcodes.AALOAD:
    case Opcodes.BALOAD:
    case Opcodes.CALOAD:
    case Opcodes.SALOAD:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.arrayIndex(second, first);
        break;
    case Opcodes.DCONST_0:
        e = Expression.constant(0d, Double.TYPE);
        break;
    case Opcodes.DCONST_1:
        e = Expression.constant(1d, Double.TYPE);
        break;
    case Opcodes.FCMPG:
    case Opcodes.FCMPL:
    case Opcodes.DCMPG:
    case Opcodes.DCMPL:
    case Opcodes.LCMP:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.subtract(second, first);
        break;
    case Opcodes.FCONST_0:
        e = Expression.constant(0f, Float.TYPE);
        break;
    case Opcodes.FCONST_1:
        e = Expression.constant(1f, Float.TYPE);
        break;
    case Opcodes.FCONST_2:
        e = Expression.constant(2f, Float.TYPE);
        break;
    case Opcodes.ICONST_M1:
        e = Expression.constant(-1, Integer.TYPE);
        break;
    case Opcodes.ICONST_0:
        e = Expression.constant(0, Integer.TYPE);
        break;
    case Opcodes.ICONST_1:
        e = Expression.constant(1, Integer.TYPE);
        break;
    case Opcodes.ICONST_2:
        e = Expression.constant(2, Integer.TYPE);
        break;
    case Opcodes.ICONST_3:
        e = Expression.constant(3, Integer.TYPE);
        break;
    case Opcodes.ICONST_4:
        e = Expression.constant(4, Integer.TYPE);
        break;
    case Opcodes.ICONST_5:
        e = Expression.constant(5, Integer.TYPE);
        break;
    case Opcodes.LCONST_0:
        e = Expression.constant(0l, Long.TYPE);
        break;
    case Opcodes.LCONST_1:
        e = Expression.constant(1l, Long.TYPE);
        break;
    case Opcodes.IADD:
    case Opcodes.LADD:
    case Opcodes.FADD:
    case Opcodes.DADD:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.add(second, first);
        break;
    case Opcodes.ISUB:
    case Opcodes.LSUB:
    case Opcodes.FSUB:
    case Opcodes.DSUB:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.subtract(second, first);
        break;
    case Opcodes.IMUL:
    case Opcodes.LMUL:
    case Opcodes.FMUL:
    case Opcodes.DMUL:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.multiply(second, first);
        break;
    case Opcodes.IDIV:
    case Opcodes.LDIV:
    case Opcodes.FDIV:
    case Opcodes.DDIV:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.divide(second, first);
        break;
    case Opcodes.IREM:
    case Opcodes.LREM:
    case Opcodes.FREM:
    case Opcodes.DREM:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.modulo(second, first);
        break;
    case Opcodes.INEG:
    case Opcodes.LNEG:
    case Opcodes.FNEG:
    case Opcodes.DNEG:
        first = _exprStack.pop();
        e = Expression.negate(first);
        break;
    case Opcodes.ISHL:
    case Opcodes.LSHL:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.leftShift(second, first);
        break;
    case Opcodes.ISHR:
    case Opcodes.LSHR:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.rightShift(second, first);
        break;
    case Opcodes.IUSHR:
    case Opcodes.LUSHR:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.rightShift(second, first);
        break;
    case Opcodes.IAND:
    case Opcodes.LAND:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.bitwiseAnd(second, first);
        break;
    case Opcodes.IOR:
    case Opcodes.LOR:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.bitwiseOr(second, first);
        break;
    case Opcodes.IXOR:
    case Opcodes.LXOR:
        first = _exprStack.pop();
        second = _exprStack.pop();
        e = Expression.exclusiveOr(second, first);
        break;
    case Opcodes.I2B:
    case Opcodes.I2C:
    case Opcodes.I2S:
        first = _exprStack.pop();
        e = Expression.convert(first, NumericTypeLookup2[opcode - Opcodes.I2B]);
        break;
    case Opcodes.I2L:
    case Opcodes.I2F:
    case Opcodes.I2D:
        first = _exprStack.pop();
        e = Expression.convert(first, NumericTypeLookup[opcode - Opcodes.I2L + 1]);
        break;
    case Opcodes.L2I:
    case Opcodes.L2F:
    case Opcodes.L2D:
        int l2l = opcode > Opcodes.L2I ? 1 : 0;
        first = _exprStack.pop();
        e = Expression.convert(first, NumericTypeLookup[opcode - Opcodes.L2I + l2l]);
        break;
    case Opcodes.F2I:
    case Opcodes.F2L:
    case Opcodes.F2D:
        int f2f = opcode == Opcodes.F2D ? 1 : 0;
        first = _exprStack.pop();
        e = Expression.convert(first, NumericTypeLookup[opcode - Opcodes.F2I + f2f]);
        break;
    case Opcodes.D2I:
    case Opcodes.D2L:
    case Opcodes.D2F:
        first = _exprStack.pop();
        e = Expression.convert(first, NumericTypeLookup[opcode - Opcodes.D2I]);
        break;
    case Opcodes.IRETURN:
    case Opcodes.LRETURN:
    case Opcodes.FRETURN:
    case Opcodes.DRETURN:
    case Opcodes.ARETURN:

        go(null);

        return;
    case Opcodes.SWAP:
        first = _exprStack.pop();
        second = _exprStack.pop();
        _exprStack.push(first);
        _exprStack.push(second);
    case Opcodes.DUP:
    case Opcodes.DUP_X1:
    case Opcodes.DUP_X2:
    case Opcodes.DUP2:
    case Opcodes.DUP2_X1:
    case Opcodes.DUP2_X2:
        // our stack is not divided to words
        int base = (opcode - Opcodes.DUP) % 3;
        base++;
        dup(_exprStack, base, base - 1);
        return;
    case Opcodes.NOP:
        return;
    case Opcodes.RETURN:
    default:
        throw notLambda(opcode);
    }

    _exprStack.push(e);
}

From source file:de.unisb.cs.st.javaslicer.common.classRepresentation.instructions.SimpleInstruction.java

License:Open Source License

@Override
public String toString() {
    switch (getOpcode()) {
    // the not interesting ones:
    case Opcodes.NOP:
        return "NOP";
    // constants:
    case Opcodes.ACONST_NULL:
        return "ACONST_NULL";
    case Opcodes.ICONST_M1:
        return "ICONST_M1";
    case Opcodes.ICONST_0:
        return "ICONST_0";
    case Opcodes.ICONST_1:
        return "ICONST_1";
    case Opcodes.ICONST_2:
        return "ICONST_2";
    case Opcodes.ICONST_3:
        return "ICONST_3";
    case Opcodes.ICONST_4:
        return "ICONST_4";
    case Opcodes.ICONST_5:
        return "ICONST_5";
    case Opcodes.LCONST_0:
        return "LCONST_0";
    case Opcodes.LCONST_1:
        return "LCONST_1";
    case Opcodes.FCONST_0:
        return "FCONST_0";
    case Opcodes.FCONST_1:
        return "FCONST_1";
    case Opcodes.FCONST_2:
        return "FCONST_2";
    case Opcodes.DCONST_0:
        return "DCONST_0";
    case Opcodes.DCONST_1:
        return "DCONST_1";

    // array load:
    case Opcodes.IALOAD:
        return "IALOAD";
    case Opcodes.LALOAD:
        return "LALOAD";
    case Opcodes.FALOAD:
        return "FALOAD";
    case Opcodes.DALOAD:
        return "DALOAD";
    case Opcodes.AALOAD:
        return "AALOAD";
    case Opcodes.BALOAD:
        return "BALOAD";
    case Opcodes.CALOAD:
        return "CALOAD";
    case Opcodes.SALOAD:
        return "SALOAD";

    // array store:
    case Opcodes.IASTORE:
        return "IASTORE";
    case Opcodes.LASTORE:
        return "LASTORE";
    case Opcodes.FASTORE:
        return "FASTORE";
    case Opcodes.DASTORE:
        return "DASTORE";
    case Opcodes.AASTORE:
        return "AASTORE";
    case Opcodes.BASTORE:
        return "BASTORE";
    case Opcodes.CASTORE:
        return "CASTORE";
    case Opcodes.SASTORE:
        return "SASTORE";

    // stack manipulation:
    case Opcodes.POP:
        return "POP";
    case Opcodes.POP2:
        return "POP2";
    case Opcodes.DUP:
        return "DUP";
    case Opcodes.DUP_X1:
        return "DUP_X1";
    case Opcodes.DUP_X2:
        return "DUP_X2";
    case Opcodes.DUP2:
        return "DUP2";
    case Opcodes.DUP2_X1:
        return "DUP2_X1";
    case Opcodes.DUP2_X2:
        return "DUP2_X2";
    case Opcodes.SWAP:
        return "SWAP";

    // arithmetic:
    case Opcodes.IADD:
        return "IADD";
    case Opcodes.LADD:
        return "LADD";
    case Opcodes.FADD:
        return "FADD";
    case Opcodes.DADD:
        return "DADD";
    case Opcodes.ISUB:
        return "ISUB";
    case Opcodes.LSUB:
        return "LSUB";
    case Opcodes.FSUB:
        return "FSUB";
    case Opcodes.DSUB:
        return "DSUB";
    case Opcodes.IMUL:
        return "IMUL";
    case Opcodes.LMUL:
        return "LMUL";
    case Opcodes.FMUL:
        return "FMUL";
    case Opcodes.DMUL:
        return "DMUL";
    case Opcodes.IDIV:
        return "IDIV";
    case Opcodes.LDIV:
        return "LDIV";
    case Opcodes.FDIV:
        return "FDIV";
    case Opcodes.DDIV:
        return "DDIV";
    case Opcodes.IREM:
        return "IREM";
    case Opcodes.LREM:
        return "LREM";
    case Opcodes.FREM:
        return "FREM";
    case Opcodes.DREM:
        return "DREM";
    case Opcodes.INEG:
        return "INEG";
    case Opcodes.LNEG:
        return "LNEG";
    case Opcodes.FNEG:
        return "FNEG";
    case Opcodes.DNEG:
        return "DNEG";
    case Opcodes.ISHL:
        return "ISHL";
    case Opcodes.LSHL:
        return "LSHL";
    case Opcodes.ISHR:
        return "ISHR";
    case Opcodes.LSHR:
        return "LSHR";
    case Opcodes.IUSHR:
        return "IUSHR";
    case Opcodes.LUSHR:
        return "LUSHR";
    case Opcodes.IAND:
        return "IAND";
    case Opcodes.LAND:
        return "LAND";
    case Opcodes.IOR:
        return "IOR";
    case Opcodes.LOR:
        return "LOR";
    case Opcodes.IXOR:
        return "IXOR";
    case Opcodes.LXOR:
        return "LXOR";

    // type conversions:
    case Opcodes.I2L:
        return "I2L";
    case Opcodes.I2F:
        return "I2F";
    case Opcodes.I2D:
        return "I2D";
    case Opcodes.L2I:
        return "L2I";
    case Opcodes.L2F:
        return "L2F";
    case Opcodes.L2D:
        return "L2D";
    case Opcodes.F2I:
        return "F2I";
    case Opcodes.F2L:
        return "F2L";
    case Opcodes.F2D:
        return "F2D";
    case Opcodes.D2I:
        return "D2I";
    case Opcodes.D2L:
        return "D2L";
    case Opcodes.D2F:
        return "D2F";
    case Opcodes.I2B:
        return "I2B";
    case Opcodes.I2C:
        return "I2C";
    case Opcodes.I2S:
        return "I2S";

    // comparison:
    case Opcodes.LCMP:
        return "LCMP";
    case Opcodes.FCMPL:
        return "FCMPL";
    case Opcodes.FCMPG:
        return "FCMPG";
    case Opcodes.DCMPL:
        return "DCMPL";
    case Opcodes.DCMPG:
        return "DCMPG";

    // control-flow statements:
    case Opcodes.IRETURN:
        return "IRETURN";
    case Opcodes.LRETURN:
        return "LRETURN";
    case Opcodes.FRETURN:
        return "FRETURN";
    case Opcodes.DRETURN:
        return "DRETURN";
    case Opcodes.ARETURN:
        return "ARETURN";
    case Opcodes.RETURN:
        return "RETURN";

    // special things
    case Opcodes.ARRAYLENGTH:
        return "ARRAYLENGTH";
    case Opcodes.ATHROW:
        return "ATHROW";
    case Opcodes.MONITORENTER:
        return "MONITORENTER";
    case Opcodes.MONITOREXIT:
        return "MONITOREXIT";

    default:/*from  w  w  w .jav a2  s. c o  m*/
        assert false;
        return "--ERROR--";
    }
}

From source file:dyco4j.instrumentation.internals.InitTracingMethodVisitor.java

License:BSD License

@Override
public void visitInsn(final int opcode) {
    super.visitInsn(opcode);
    switch (opcode) {
    case Opcodes.IRETURN: // 1 before n/a after
    case Opcodes.FRETURN: // 1 before n/a after
    case Opcodes.ARETURN: // 1 before n/a after
    case Opcodes.ATHROW: // 1 before n/a after
        this.stackFrame.pop();
        break;/*from  w  ww.j  av  a2s. c o m*/
    case Opcodes.LRETURN: // 2 before n/a after
    case Opcodes.DRETURN: // 2 before n/a after
        this.stackFrame.pop();
        this.stackFrame.pop();
        break;
    case Opcodes.NOP:
    case Opcodes.LALOAD: // remove 2 add 2
    case Opcodes.DALOAD: // remove 2 add 2
    case Opcodes.LNEG:
    case Opcodes.DNEG:
    case Opcodes.FNEG:
    case Opcodes.INEG:
    case Opcodes.L2D:
    case Opcodes.D2L:
    case Opcodes.F2I:
    case Opcodes.I2B:
    case Opcodes.I2C:
    case Opcodes.I2S:
    case Opcodes.I2F:
    case Opcodes.ARRAYLENGTH:
        break;
    case Opcodes.ACONST_NULL:
    case Opcodes.ICONST_M1:
    case Opcodes.ICONST_0:
    case Opcodes.ICONST_1:
    case Opcodes.ICONST_2:
    case Opcodes.ICONST_3:
    case Opcodes.ICONST_4:
    case Opcodes.ICONST_5:
    case Opcodes.FCONST_0:
    case Opcodes.FCONST_1:
    case Opcodes.FCONST_2:
    case Opcodes.F2L: // 1 before 2 after
    case Opcodes.F2D:
    case Opcodes.I2L:
    case Opcodes.I2D:
        this.stackFrame.push(OTHER);
        break;
    case Opcodes.LCONST_0:
    case Opcodes.LCONST_1:
    case Opcodes.DCONST_0:
    case Opcodes.DCONST_1:
        this.stackFrame.push(OTHER);
        this.stackFrame.push(OTHER);
        break;
    case Opcodes.IALOAD: // remove 2 add 1
    case Opcodes.FALOAD: // remove 2 add 1
    case Opcodes.AALOAD: // remove 2 add 1
    case Opcodes.BALOAD: // remove 2 add 1
    case Opcodes.CALOAD: // remove 2 add 1
    case Opcodes.SALOAD: // remove 2 add 1
    case Opcodes.POP:
    case Opcodes.IADD:
    case Opcodes.FADD:
    case Opcodes.ISUB:
    case Opcodes.LSHL: // 3 before 2 after
    case Opcodes.LSHR: // 3 before 2 after
    case Opcodes.LUSHR: // 3 before 2 after
    case Opcodes.L2I: // 2 before 1 after
    case Opcodes.L2F: // 2 before 1 after
    case Opcodes.D2I: // 2 before 1 after
    case Opcodes.D2F: // 2 before 1 after
    case Opcodes.FSUB:
    case Opcodes.FMUL:
    case Opcodes.FDIV:
    case Opcodes.FREM:
    case Opcodes.FCMPL: // 2 before 1 after
    case Opcodes.FCMPG: // 2 before 1 after
    case Opcodes.IMUL:
    case Opcodes.IDIV:
    case Opcodes.IREM:
    case Opcodes.ISHL:
    case Opcodes.ISHR:
    case Opcodes.IUSHR:
    case Opcodes.IAND:
    case Opcodes.IOR:
    case Opcodes.IXOR:
    case Opcodes.MONITORENTER:
    case Opcodes.MONITOREXIT:
        this.stackFrame.pop();
        break;
    case Opcodes.POP2:
    case Opcodes.LSUB:
    case Opcodes.LMUL:
    case Opcodes.LDIV:
    case Opcodes.LREM:
    case Opcodes.LADD:
    case Opcodes.LAND:
    case Opcodes.LOR:
    case Opcodes.LXOR:
    case Opcodes.DADD:
    case Opcodes.DMUL:
    case Opcodes.DSUB:
    case Opcodes.DDIV:
    case Opcodes.DREM:
        this.stackFrame.pop();
        this.stackFrame.pop();
        break;
    case Opcodes.IASTORE:
    case Opcodes.FASTORE:
    case Opcodes.AASTORE:
    case Opcodes.BASTORE:
    case Opcodes.CASTORE:
    case Opcodes.SASTORE:
    case Opcodes.LCMP: // 4 before 1 after
    case Opcodes.DCMPL:
    case Opcodes.DCMPG:
        this.stackFrame.pop();
        this.stackFrame.pop();
        this.stackFrame.pop();
        break;
    case Opcodes.LASTORE:
    case Opcodes.DASTORE:
        this.stackFrame.pop();
        this.stackFrame.pop();
        this.stackFrame.pop();
        this.stackFrame.pop();
        break;
    case Opcodes.DUP:
        this.stackFrame.push(this.stackFrame.peek());
        break;
    case Opcodes.DUP_X1: {
        final int _s = stackFrame.size();
        stackFrame.add(_s - 2, stackFrame.get(_s - 1));
        break;
    }
    case Opcodes.DUP_X2: {
        final int _s = stackFrame.size();
        stackFrame.add(_s - 3, stackFrame.get(_s - 1));
        break;
    }
    case Opcodes.DUP2: {
        final int _s = stackFrame.size();
        stackFrame.add(_s - 2, stackFrame.get(_s - 1));
        stackFrame.add(_s - 2, stackFrame.get(_s - 1));
        break;
    }
    case Opcodes.DUP2_X1: {
        final int _s = stackFrame.size();
        stackFrame.add(_s - 3, stackFrame.get(_s - 1));
        stackFrame.add(_s - 3, stackFrame.get(_s - 1));
        break;
    }
    case Opcodes.DUP2_X2: {
        final int _s = stackFrame.size();
        stackFrame.add(_s - 4, stackFrame.get(_s - 1));
        stackFrame.add(_s - 4, stackFrame.get(_s - 1));
        break;
    }
    case Opcodes.SWAP: {
        final int _s = stackFrame.size();
        stackFrame.add(_s - 2, stackFrame.get(_s - 1));
        stackFrame.remove(_s);
        break;
    }
    }
}

From source file:edu.mit.streamjit.util.bytecode.MethodResolver.java

License:Open Source License

private void interpret(InsnNode insn, FrameState frame, BBInfo block) {
    ReturnType returnType = block.block.getParent().getType().getReturnType();
    switch (insn.getOpcode()) {
    case Opcodes.NOP:
        break;//  w w w  . j a  v  a2s . c  o  m
    //<editor-fold defaultstate="collapsed" desc="Stack manipulation opcodes (pop, dup, swap)">
    case Opcodes.POP:
        assert frame.stack.peek().getType().getCategory() == 1;
        frame.stack.pop();
        break;
    case Opcodes.POP2:
        final int[][][] pop2Permutations = { { { 1, 1 }, {} }, { { 2 }, {} } };
        conditionallyPermute(frame, pop2Permutations);
        break;
    case Opcodes.DUP:
        final int[][][] dupPermutations = { { { 1 }, { 1, 1 } } };
        conditionallyPermute(frame, dupPermutations);
        break;
    case Opcodes.DUP_X1:
        final int[][][] dup_x1Permutations = { { { 1, 1 }, { 1, 2, 1 } } };
        conditionallyPermute(frame, dup_x1Permutations);
        break;
    case Opcodes.DUP_X2:
        final int[][][] dup_x2Permutations = { { { 1, 1, 1 }, { 1, 3, 2, 1 } }, { { 1, 2 }, { 1, 2, 1 } } };
        conditionallyPermute(frame, dup_x2Permutations);
        break;
    case Opcodes.DUP2:
        final int[][][] dup2Permutations = { { { 1, 1 }, { 2, 1, 2, 1 } }, { { 2 }, { 1, 1 } } };
        conditionallyPermute(frame, dup2Permutations);
        break;
    case Opcodes.DUP2_X1:
        final int[][][] dup2_x1Permutations = { { { 1, 1, 1 }, { 2, 1, 3, 2, 1 } }, { { 2, 1 }, { 1, 2, 1 } } };
        conditionallyPermute(frame, dup2_x1Permutations);
        break;
    case Opcodes.DUP2_X2:
        final int[][][] dup2_x2Permutations = { { { 1, 1, 1, 1 }, { 2, 1, 4, 3, 2, 1 } },
                { { 2, 1, 1 }, { 1, 3, 2, 1 } }, { { 3, 2, 1 }, { 2, 1, 3, 2, 1 } },
                { { 2, 2 }, { 1, 2, 1 } } };
        conditionallyPermute(frame, dup2_x2Permutations);
        break;
    case Opcodes.SWAP:
        final int[][][] swapPermutations = { { { 1, 1 }, { 1, 2 } } };
        conditionallyPermute(frame, swapPermutations);
        break;
    //</editor-fold>
    //<editor-fold defaultstate="collapsed" desc="Constant-stacking opcodes (iconst_0, etc.; see also bipush, sipush)">
    case Opcodes.ACONST_NULL:
        frame.stack.push(module.constants().getNullConstant());
        break;
    case Opcodes.ICONST_M1:
        frame.stack.push(module.constants().getSmallestIntConstant(-1));
        break;
    case Opcodes.ICONST_0:
        frame.stack.push(module.constants().getSmallestIntConstant(0));
        break;
    case Opcodes.ICONST_1:
        frame.stack.push(module.constants().getSmallestIntConstant(1));
        break;
    case Opcodes.ICONST_2:
        frame.stack.push(module.constants().getSmallestIntConstant(2));
        break;
    case Opcodes.ICONST_3:
        frame.stack.push(module.constants().getSmallestIntConstant(3));
        break;
    case Opcodes.ICONST_4:
        frame.stack.push(module.constants().getSmallestIntConstant(4));
        break;
    case Opcodes.ICONST_5:
        frame.stack.push(module.constants().getSmallestIntConstant(5));
        break;
    case Opcodes.LCONST_0:
        frame.stack.push(module.constants().getConstant(0L));
        break;
    case Opcodes.LCONST_1:
        frame.stack.push(module.constants().getConstant(1L));
        break;
    case Opcodes.FCONST_0:
        frame.stack.push(module.constants().getConstant(0f));
        break;
    case Opcodes.FCONST_1:
        frame.stack.push(module.constants().getConstant(1f));
        break;
    case Opcodes.FCONST_2:
        frame.stack.push(module.constants().getConstant(2f));
        break;
    case Opcodes.DCONST_0:
        frame.stack.push(module.constants().getConstant(0d));
        break;
    case Opcodes.DCONST_1:
        frame.stack.push(module.constants().getConstant(1d));
        break;
    //</editor-fold>
    //<editor-fold defaultstate="collapsed" desc="Return opcodes">
    case Opcodes.IRETURN:
        assert returnType.isSubtypeOf(typeFactory.getType(int.class));
        assert frame.stack.peek().getType().isSubtypeOf(returnType);
        block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop()));
        break;
    case Opcodes.LRETURN:
        assert returnType.isSubtypeOf(typeFactory.getType(long.class));
        assert frame.stack.peek().getType().isSubtypeOf(returnType);
        block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop()));
        break;
    case Opcodes.FRETURN:
        assert returnType.isSubtypeOf(typeFactory.getType(float.class));
        assert frame.stack.peek().getType().isSubtypeOf(returnType);
        block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop()));
        break;
    case Opcodes.DRETURN:
        assert returnType.isSubtypeOf(typeFactory.getType(double.class));
        assert frame.stack.peek().getType().isSubtypeOf(returnType);
        block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop()));
        break;
    case Opcodes.ARETURN:
        assert returnType.isSubtypeOf(typeFactory.getType(Object.class));
        assert frame.stack.peek().getType().isSubtypeOf(returnType);
        block.block.instructions().add(new ReturnInst(returnType, frame.stack.pop()));
        break;
    case Opcodes.RETURN:
        assert returnType instanceof VoidType || method.isConstructor();
        block.block.instructions().add(new ReturnInst(typeFactory.getVoidType()));
        break;
    //</editor-fold>
    //<editor-fold defaultstate="collapsed" desc="Unary math opcodes (negation)">
    //Unary minus is rendered as a multiplication by -1.  (The obvious
    //other choice, subtraction from 0, is not equivalent for floats and
    //doubles due to negative zero.)
    case Opcodes.INEG:
        frame.stack.push(module.constants().getSmallestIntConstant(-1));
        binary(BinaryInst.Operation.MUL, frame, block);
        break;
    case Opcodes.LNEG:
        frame.stack.push(module.constants().getConstant(-1L));
        binary(BinaryInst.Operation.MUL, frame, block);
        break;
    case Opcodes.FNEG:
        frame.stack.push(module.constants().getConstant(-1f));
        binary(BinaryInst.Operation.MUL, frame, block);
        break;
    case Opcodes.DNEG:
        frame.stack.push(module.constants().getConstant(-1d));
        binary(BinaryInst.Operation.MUL, frame, block);
        break;
    //</editor-fold>
    //<editor-fold defaultstate="collapsed" desc="Binary math opcodes">
    case Opcodes.IADD:
    case Opcodes.LADD:
    case Opcodes.FADD:
    case Opcodes.DADD:
        binary(BinaryInst.Operation.ADD, frame, block);
        break;
    case Opcodes.ISUB:
    case Opcodes.LSUB:
    case Opcodes.FSUB:
    case Opcodes.DSUB:
        binary(BinaryInst.Operation.SUB, frame, block);
        break;
    case Opcodes.IMUL:
    case Opcodes.LMUL:
    case Opcodes.FMUL:
    case Opcodes.DMUL:
        binary(BinaryInst.Operation.MUL, frame, block);
        break;
    case Opcodes.IDIV:
    case Opcodes.LDIV:
    case Opcodes.FDIV:
    case Opcodes.DDIV:
        binary(BinaryInst.Operation.DIV, frame, block);
        break;
    case Opcodes.IREM:
    case Opcodes.LREM:
    case Opcodes.FREM:
    case Opcodes.DREM:
        binary(BinaryInst.Operation.REM, frame, block);
        break;
    case Opcodes.ISHL:
    case Opcodes.LSHL:
        binary(BinaryInst.Operation.SHL, frame, block);
        break;
    case Opcodes.ISHR:
    case Opcodes.LSHR:
        binary(BinaryInst.Operation.SHR, frame, block);
        break;
    case Opcodes.IUSHR:
    case Opcodes.LUSHR:
        binary(BinaryInst.Operation.USHR, frame, block);
        break;
    case Opcodes.IAND:
    case Opcodes.LAND:
        binary(BinaryInst.Operation.AND, frame, block);
        break;
    case Opcodes.IOR:
    case Opcodes.LOR:
        binary(BinaryInst.Operation.OR, frame, block);
        break;
    case Opcodes.IXOR:
    case Opcodes.LXOR:
        binary(BinaryInst.Operation.XOR, frame, block);
        break;
    case Opcodes.LCMP:
    case Opcodes.FCMPL:
    case Opcodes.DCMPL:
        binary(BinaryInst.Operation.CMP, frame, block);
        break;
    case Opcodes.FCMPG:
    case Opcodes.DCMPG:
        binary(BinaryInst.Operation.CMPG, frame, block);
        break;
    //</editor-fold>
    //<editor-fold defaultstate="collapsed" desc="Primitive casts">
    case Opcodes.I2L:
        cast(int.class, long.class, frame, block);
        break;
    case Opcodes.I2F:
        cast(int.class, float.class, frame, block);
        break;
    case Opcodes.I2D:
        cast(int.class, double.class, frame, block);
        break;
    case Opcodes.L2I:
        cast(long.class, int.class, frame, block);
        break;
    case Opcodes.L2F:
        cast(long.class, float.class, frame, block);
        break;
    case Opcodes.L2D:
        cast(long.class, double.class, frame, block);
        break;
    case Opcodes.F2I:
        cast(float.class, int.class, frame, block);
        break;
    case Opcodes.F2L:
        cast(float.class, long.class, frame, block);
        break;
    case Opcodes.F2D:
        cast(float.class, double.class, frame, block);
        break;
    case Opcodes.D2I:
        cast(double.class, int.class, frame, block);
        break;
    case Opcodes.D2L:
        cast(double.class, long.class, frame, block);
        break;
    case Opcodes.D2F:
        cast(double.class, float.class, frame, block);
        break;
    case Opcodes.I2B:
        cast(int.class, byte.class, frame, block);
        break;
    case Opcodes.I2C:
        cast(int.class, char.class, frame, block);
        break;
    case Opcodes.I2S:
        cast(int.class, short.class, frame, block);
        break;
    //</editor-fold>
    //<editor-fold defaultstate="collapsed" desc="Array store opcodes">
    case Opcodes.IASTORE:
    case Opcodes.LASTORE:
    case Opcodes.FASTORE:
    case Opcodes.DASTORE:
    case Opcodes.AASTORE:
    case Opcodes.BASTORE:
    case Opcodes.CASTORE:
    case Opcodes.SASTORE:
        Value data = frame.stack.pop();
        Value index = frame.stack.pop();
        Value array = frame.stack.pop();
        ArrayStoreInst asi = new ArrayStoreInst(array, index, data);
        block.block.instructions().add(asi);
        break;
    //</editor-fold>
    //<editor-fold defaultstate="collapsed" desc="Array load opcodes">
    case Opcodes.IALOAD:
    case Opcodes.LALOAD:
    case Opcodes.FALOAD:
    case Opcodes.DALOAD:
    case Opcodes.AALOAD:
    case Opcodes.BALOAD:
    case Opcodes.CALOAD:
    case Opcodes.SALOAD:
        Value index2 = frame.stack.pop();
        Value array2 = frame.stack.pop();
        ArrayLoadInst ali = new ArrayLoadInst(array2, index2);
        block.block.instructions().add(ali);
        frame.stack.push(ali);
        break;
    //</editor-fold>
    case Opcodes.ARRAYLENGTH:
        ArrayLengthInst lengthInst = new ArrayLengthInst(frame.stack.pop());
        block.block.instructions().add(lengthInst);
        frame.stack.push(lengthInst);
        break;
    case Opcodes.ATHROW:
        block.block.instructions().add(new ThrowInst(frame.stack.pop()));
        break;
    default:
        throw new UnsupportedOperationException("" + insn.getOpcode());
    }
}

From source file:jpcsp.Allegrex.compiler.CompilerContext.java

License:Open Source License

@Override
public void memRead16(int registerIndex, int offset) {
    if (useMMIO()) {
        loadMMIO();//from   www.  j  a v a 2 s .  c  om
    } else if (!RuntimeContext.hasMemoryInt()) {
        loadMemory();
    } else {
        loadMemoryInt();
    }

    loadRegister(registerIndex);
    if (offset != 0) {
        loadImm(offset);
        mv.visitInsn(Opcodes.IADD);
    }

    if (RuntimeContext.debugMemoryRead) {
        mv.visitInsn(Opcodes.DUP);
        loadImm(0);
        loadImm(codeInstruction.getAddress());
        loadImm(1);
        loadImm(16);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, runtimeContextInternalName, "debugMemoryReadWrite",
                "(IIIZI)V");
    }

    if (useMMIO() || !RuntimeContext.hasMemoryInt()) {
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, memoryInternalName, "read16", "(I)I");
    } else {
        if (checkMemoryAccess()) {
            loadImm(codeInstruction.getAddress());
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, runtimeContextInternalName, "checkMemoryRead16", "(II)I");
            loadImm(1);
            mv.visitInsn(Opcodes.IUSHR);
        } else {
            // memoryInt[(address & 0x1FFFFFFF) / 4] == memoryInt[(address << 3) >>> 5]
            loadImm(3);
            mv.visitInsn(Opcodes.ISHL);
            loadImm(4);
            mv.visitInsn(Opcodes.IUSHR);
        }
        mv.visitInsn(Opcodes.DUP);
        loadImm(1);
        mv.visitInsn(Opcodes.IAND);
        loadImm(4);
        mv.visitInsn(Opcodes.ISHL);
        storeTmp1();
        loadImm(1);
        mv.visitInsn(Opcodes.IUSHR);
        mv.visitInsn(Opcodes.IALOAD);
        loadTmp1();
        mv.visitInsn(Opcodes.IUSHR);
        loadImm(0xFFFF);
        mv.visitInsn(Opcodes.IAND);
    }
}

From source file:jpcsp.Allegrex.compiler.CompilerContext.java

License:Open Source License

@Override
public void memRead8(int registerIndex, int offset) {
    if (useMMIO()) {
        loadMMIO();//w  ww. jav  a 2 s  . c o m
    } else if (!RuntimeContext.hasMemoryInt()) {
        loadMemory();
    } else {
        loadMemoryInt();
    }

    loadRegister(registerIndex);
    if (offset != 0) {
        loadImm(offset);
        mv.visitInsn(Opcodes.IADD);
    }

    if (RuntimeContext.debugMemoryRead) {
        mv.visitInsn(Opcodes.DUP);
        loadImm(0);
        loadImm(codeInstruction.getAddress());
        loadImm(1);
        loadImm(8);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, runtimeContextInternalName, "debugMemoryReadWrite",
                "(IIIZI)V");
    }

    if (useMMIO() || !RuntimeContext.hasMemoryInt()) {
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, memoryInternalName, "read8", "(I)I");
    } else {
        if (checkMemoryAccess()) {
            loadImm(codeInstruction.getAddress());
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, runtimeContextInternalName, "checkMemoryRead8", "(II)I");
        } else {
            // memoryInt[(address & 0x1FFFFFFF) / 4] == memoryInt[(address << 3) >>> 5]
            loadImm(3);
            mv.visitInsn(Opcodes.ISHL);
            loadImm(3);
            mv.visitInsn(Opcodes.IUSHR);
        }
        mv.visitInsn(Opcodes.DUP);
        loadImm(3);
        mv.visitInsn(Opcodes.IAND);
        loadImm(3);
        mv.visitInsn(Opcodes.ISHL);
        storeTmp1();
        loadImm(2);
        mv.visitInsn(Opcodes.IUSHR);
        mv.visitInsn(Opcodes.IALOAD);
        loadTmp1();
        mv.visitInsn(Opcodes.IUSHR);
        loadImm(0xFF);
        mv.visitInsn(Opcodes.IAND);
    }
}

From source file:jpcsp.Allegrex.compiler.CompilerContext.java

License:Open Source License

@SuppressWarnings("unused")
private void prepareMemIndex(int registerIndex, int offset, boolean isRead, int width) {
    loadRegister(registerIndex);/*from ww w  . j a  va 2 s .c  om*/
    if (offset != 0) {
        loadImm(offset);
        mv.visitInsn(Opcodes.IADD);
    }

    if (RuntimeContext.debugMemoryRead && isRead) {
        if (!RuntimeContext.debugMemoryReadWriteNoSP || registerIndex != _sp) {
            mv.visitInsn(Opcodes.DUP);
            loadImm(0);
            loadImm(codeInstruction.getAddress());
            loadImm(isRead);
            loadImm(width);
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, runtimeContextInternalName, "debugMemoryReadWrite",
                    "(IIIZI)V");
        }
    }

    if (!useMMIO() && RuntimeContext.hasMemoryInt()) {
        if (registerIndex == _sp) {
            if (isCodeInstructionInKernelMemory()) {
                // In kernel memory, the $sp value can have the flag 0x80000000.
                // memoryInt[(address & 0x1FFFFFFF) / 4] == memoryInt[(address << 3) >>> 5]
                loadImm(3);
                mv.visitInsn(Opcodes.ISHL);
                loadImm(5);
                mv.visitInsn(Opcodes.IUSHR);
            } else {
                // No need to check for a valid memory access when referencing the $sp register
                loadImm(2);
                mv.visitInsn(Opcodes.IUSHR);
            }
        } else if (checkMemoryAccess()) {
            loadImm(codeInstruction.getAddress());
            String checkMethodName = String.format("checkMemory%s%d", isRead ? "Read" : "Write", width);
            mv.visitMethodInsn(Opcodes.INVOKESTATIC, runtimeContextInternalName, checkMethodName, "(II)I");
            loadImm(2);
            mv.visitInsn(Opcodes.IUSHR);
        } else {
            // memoryInt[(address & 0x1FFFFFFF) / 4] == memoryInt[(address << 3) >>> 5]
            loadImm(3);
            mv.visitInsn(Opcodes.ISHL);
            loadImm(5);
            mv.visitInsn(Opcodes.IUSHR);
        }
    }
}