Example usage for org.objectweb.asm Opcodes DADD

Introduction

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

Prototype

int DADD

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

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Usage

From source file:org.pitest.mutationtest.engine.gregor.mutators.experimental.extended.UOIMutator1.java

License:Apache License

@Override
public void visitFieldInsn(int opcode, String owner, String name, String desc) {
    // GETFIELD I,F,L,D + B,S
    if ((opcode == Opcodes.GETFIELD)) {
        if (desc.equals("I")) {
            if (this.shouldMutate("Incremented (a++) integer field " + name)) {
                // Assuming we have the reference to [this] on the stack
                mv.visitInsn(Opcodes.DUP); // dup [this]
                mv.visitFieldInsn(opcode, owner, name, desc); // stack = [this] [this.field]
                mv.visitInsn(Opcodes.DUP_X1); // stack = [this.field] [this] [this.field]
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD); // stack = [this.field] [this] [this.field +1]
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }//from   ww w  .  j a  v  a2 s .c o m
        }
        if (desc.equals("F")) {
            if (this.shouldMutate("Incremented (a++) float field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP_X1);
                mv.visitInsn(Opcodes.FCONST_1);
                mv.visitInsn(Opcodes.FADD);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("J")) {
            if (this.shouldMutate("Incremented (a++) long field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP2_X1);
                mv.visitInsn(Opcodes.LCONST_1);
                mv.visitInsn(Opcodes.LADD);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("D")) {
            if (this.shouldMutate("Incremented (a++) double field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP2_X1);
                mv.visitInsn(Opcodes.DCONST_1);
                mv.visitInsn(Opcodes.DADD);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("B")) {
            if (this.shouldMutate("Incremented (a++) byte field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP_X1);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2B);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("S")) {
            if (this.shouldMutate("Incremented (a++) short field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP_X1);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2S);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
    }

    // GETSTATIC I,F,L,D + B,S
    if (opcode == Opcodes.GETSTATIC) {
        if (desc.equals("I")) {
            if (this.shouldMutate("Incremented (a++) static integer field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("F")) {
            if (this.shouldMutate("Incremented (a++) static float field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP);
                mv.visitInsn(Opcodes.FCONST_1);
                mv.visitInsn(Opcodes.FADD);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("J")) {
            if (this.shouldMutate("Incremented (a++) static long field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP2);
                mv.visitInsn(Opcodes.LCONST_1);
                mv.visitInsn(Opcodes.LADD);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("D")) {
            if (this.shouldMutate("Incremented (a++) static double field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP2);
                mv.visitInsn(Opcodes.DCONST_1);
                mv.visitInsn(Opcodes.DADD);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("B")) {
            if (this.shouldMutate("Incremented (a++) static byte field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2B);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("S")) {
            if (this.shouldMutate("Incremented (a++) static short field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DUP);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2S);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
    }
    mv.visitFieldInsn(opcode, owner, name, desc);
}

---

From source file:org.pitest.mutationtest.engine.gregor.mutators.experimental.extended.UOIMutator3.java

License:Apache License

@Override
public void visitVarInsn(int opcode, int var) {
    switch (opcode) {
    case Opcodes.ILOAD:
        if (this.shouldMutate("Incremented (++a) integer local variable number " + var)) {
            mv.visitIincInsn(var, 1);
        }/*from w ww  .j av a 2 s. c om*/
        mv.visitVarInsn(opcode, var);
        break;
    case Opcodes.FLOAD:
        if (this.shouldMutate("Incremented (++a) float local variable number " + var)) {
            mv.visitVarInsn(opcode, var);
            mv.visitInsn(Opcodes.FCONST_1);
            mv.visitInsn(Opcodes.FADD);
            mv.visitVarInsn(Opcodes.FSTORE, var);
        }
        mv.visitVarInsn(opcode, var);
        break;
    case Opcodes.LLOAD:
        if (this.shouldMutate("Incremented (++a) long local variable number " + var)) {
            mv.visitVarInsn(opcode, var);
            mv.visitInsn(Opcodes.LCONST_1);
            mv.visitInsn(Opcodes.LADD);
            mv.visitVarInsn(Opcodes.LSTORE, var);
        }
        mv.visitVarInsn(opcode, var);
        break;
    case Opcodes.DLOAD:
        if (this.shouldMutate("Incremented (++a) double local variable number " + var)) {
            mv.visitVarInsn(opcode, var);
            mv.visitInsn(Opcodes.DCONST_1);
            mv.visitInsn(Opcodes.DADD);
            mv.visitVarInsn(Opcodes.DSTORE, var);
        }
        mv.visitVarInsn(opcode, var);
        break;
    default:
        mv.visitVarInsn(opcode, var);
        break;
    }
}

---

From source file:org.pitest.mutationtest.engine.gregor.mutators.experimental.extended.UOIMutator3.java

License:Apache License

@Override
public void visitInsn(final int opcode) {
    // I F L D + BS
    switch (opcode) {
    case Opcodes.IALOAD:
        if (this.shouldMutate("Incremented (++a) integer array field")) {
            // stack = [array] [index]

            mv.visitInsn(Opcodes.DUP2);/*w  w  w.ja v a2 s.  c o  m*/
            // stack = [array] [index] [array] [index]

            mv.visitInsn(opcode);
            // stack = [array] [index] [array(index)]

            mv.visitInsn(Opcodes.ICONST_1);
            mv.visitInsn(Opcodes.IADD);
            // stack = [array] [index] [array(index)+1]

            mv.visitInsn(Opcodes.DUP_X2);
            // stack = [array(index)+1] [array] [index] [array(index)+1]

            mv.visitInsn(Opcodes.IASTORE);
        } else {
            mv.visitInsn(opcode);
        }
        break;
    case Opcodes.FALOAD:
        if (this.shouldMutate("Incremented (++a) float array field")) {
            mv.visitInsn(Opcodes.DUP2);
            mv.visitInsn(opcode);
            mv.visitInsn(Opcodes.FCONST_1);
            mv.visitInsn(Opcodes.FADD);
            mv.visitInsn(Opcodes.DUP_X2);
            mv.visitInsn(Opcodes.FASTORE);
        } else {
            mv.visitInsn(opcode);
        }
        break;
    case Opcodes.LALOAD:
        if (this.shouldMutate("Incremented (++a) long array field")) {
            mv.visitInsn(Opcodes.DUP2);
            mv.visitInsn(opcode);
            mv.visitInsn(Opcodes.LCONST_1);
            mv.visitInsn(Opcodes.LADD);
            mv.visitInsn(Opcodes.DUP2_X2);
            mv.visitInsn(Opcodes.LASTORE);
        } else {
            mv.visitInsn(opcode);
        }
        break;
    case Opcodes.DALOAD:
        if (this.shouldMutate("Incremented (++a) double array field")) {
            mv.visitInsn(Opcodes.DUP2);
            mv.visitInsn(opcode);
            mv.visitInsn(Opcodes.DCONST_1);
            mv.visitInsn(Opcodes.DADD);
            mv.visitInsn(Opcodes.DUP2_X2);
            mv.visitInsn(Opcodes.DASTORE);
        } else {
            mv.visitInsn(opcode);
        }
        break;

    case Opcodes.BALOAD:
        if (this.shouldMutate("Incremented (++a) byte array field")) {
            mv.visitInsn(Opcodes.DUP2);
            mv.visitInsn(opcode);
            mv.visitInsn(Opcodes.ICONST_1);
            mv.visitInsn(Opcodes.IADD);
            mv.visitInsn(Opcodes.I2B);
            mv.visitInsn(Opcodes.DUP_X2);
            mv.visitInsn(Opcodes.BASTORE);
        } else {
            mv.visitInsn(opcode);
        }
        break;

    case Opcodes.SALOAD:
        if (this.shouldMutate("Incremented (++a) short array field")) {
            mv.visitInsn(Opcodes.DUP2);
            mv.visitInsn(opcode);
            mv.visitInsn(Opcodes.ICONST_1);
            mv.visitInsn(Opcodes.IADD);
            mv.visitInsn(Opcodes.I2S);
            mv.visitInsn(Opcodes.DUP_X2);
            mv.visitInsn(Opcodes.SASTORE);
        } else {
            mv.visitInsn(opcode);
        }
        break;

    default:
        mv.visitInsn(opcode);
        break;
    }
}

---

From source file:org.pitest.mutationtest.engine.gregor.mutators.experimental.extended.UOIMutator3.java

License:Apache License

@Override
public void visitFieldInsn(int opcode, String owner, String name, String desc) {
    // GETFIELD I,F,L,D + B,S
    if ((opcode == Opcodes.GETFIELD)) {
        if (desc.equals("I")) {
            if (this.shouldMutate("Incremented (++a) integer field " + name)) {
                // stack = [this]

                mv.visitInsn(Opcodes.DUP);
                // stack = [this] [this]

                mv.visitFieldInsn(opcode, owner, name, desc);
                // stack = [this] [this.field]

                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                // stack = [this] [this.field +1]

                mv.visitInsn(Opcodes.DUP_X1);
                // stack = [this.field +1] [this] [this.field +1]

                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }/*w  ww  .  j ava2 s . c om*/
        }
        if (desc.equals("F")) {
            if (this.shouldMutate("Incremented (++a) float field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.FCONST_1);
                mv.visitInsn(Opcodes.FADD);
                mv.visitInsn(Opcodes.DUP_X1);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("J")) {
            if (this.shouldMutate("Incremented (++a) long field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.LCONST_1);
                mv.visitInsn(Opcodes.LADD);
                mv.visitInsn(Opcodes.DUP2_X1);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("D")) {
            if (this.shouldMutate("Incremented (++a) double field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DCONST_1);
                mv.visitInsn(Opcodes.DADD);
                mv.visitInsn(Opcodes.DUP2_X1);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("B")) {
            if (this.shouldMutate("Incremented (++a) byte field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2B);
                mv.visitInsn(Opcodes.DUP_X1);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
        if (desc.equals("S")) {
            if (this.shouldMutate("Incremented (++a) short field " + name)) {
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2S);
                mv.visitInsn(Opcodes.DUP_X1);
                mv.visitFieldInsn(Opcodes.PUTFIELD, owner, name, desc);
                return;
            }
        }
    }

    // GETSTATIC I,F,L,D + B,S
    if (opcode == Opcodes.GETSTATIC) {
        if (desc.equals("I")) {
            if (this.shouldMutate("Incremented (++a) static integer field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("F")) {
            if (this.shouldMutate("Incremented (++a) static float field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.FCONST_1);
                mv.visitInsn(Opcodes.FADD);
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("J")) {
            if (this.shouldMutate("Incremented (++a) static long field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.LCONST_1);
                mv.visitInsn(Opcodes.LADD);
                mv.visitInsn(Opcodes.DUP2);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("D")) {
            if (this.shouldMutate("Incremented (++a) static double field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.DCONST_1);
                mv.visitInsn(Opcodes.DADD);
                mv.visitInsn(Opcodes.DUP2);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("B")) {
            if (this.shouldMutate("Incremented (++a) static byte field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2B);
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
        if (desc.equals("S")) {
            if (this.shouldMutate("Incremented (++a) static short field " + name)) {
                mv.visitFieldInsn(opcode, owner, name, desc);
                mv.visitInsn(Opcodes.ICONST_1);
                mv.visitInsn(Opcodes.IADD);
                mv.visitInsn(Opcodes.I2S);
                mv.visitInsn(Opcodes.DUP);
                mv.visitFieldInsn(Opcodes.PUTSTATIC, owner, name, desc);
                return;
            }
        }
    }
    mv.visitFieldInsn(opcode, owner, name, desc);
}

---

From source file:org.pitest.mutationtest.engine.gregor.mutators.ReturnValsMutator.java

License:Apache License

private static ZeroOperandMutation dreturnMutation() {
    return new ZeroOperandMutation() {

        public void apply(final int opCode, final MethodVisitor mv) {
            // Strategy translated from jumble BCEL code
            // The following is complicated by the problem of NaNs. By default
            // the new value is -(x + 1), but this doesn't work for NaNs. But
            // for a NaN x != x is true, and we use this to detect them.
            mv.visitInsn(Opcodes.DUP2);/*from w ww .  j ava2 s  .  co  m*/
            mv.visitInsn(Opcodes.DUP2);
            mv.visitInsn(Opcodes.DCMPG);
            final Label l1 = new Label();
            mv.visitJumpInsn(Opcodes.IFEQ, l1);
            mv.visitInsn(Opcodes.POP2);
            mv.visitInsn(Opcodes.DCONST_0);
            mv.visitLabel(l1);
            mv.visitInsn(Opcodes.DCONST_1);
            mv.visitInsn(Opcodes.DADD);
            mv.visitInsn(Opcodes.DNEG);
            mv.visitInsn(Opcodes.DRETURN);
        }

        public String decribe(final int opCode, final MethodInfo methodInfo) {
            return "replaced return of double value with -(x + 1) for " + methodInfo.getDescription();
        }

    };
}

---

From source file:org.sonar.java.bytecode.se.BytecodeEGWalkerExecuteTest.java

License:Open Source License

@Test
public void test_add_sub_mul_div_rem() throws Exception {
    int[] opcodes = new int[] { Opcodes.IADD, Opcodes.LADD, Opcodes.FADD, Opcodes.DADD, Opcodes.ISUB,
            Opcodes.LSUB, Opcodes.FSUB, Opcodes.DSUB, Opcodes.IMUL, Opcodes.LMUL, Opcodes.FMUL, Opcodes.DMUL,
            Opcodes.IDIV, Opcodes.LDIV, Opcodes.FDIV, Opcodes.DDIV, Opcodes.IREM, Opcodes.LREM, Opcodes.FREM,
            Opcodes.DREM, };//from w  w w .ja  v  a  2 s.c  om
    assertConsume2produceNotNull(opcodes);

    assertThrowWhenInvalidStack(opcodes, " needs 2 values on stack");
}

---

From source file:org.sonar.java.bytecode.se.BytecodeSECheckTest.java

License:Open Source License

@Test
public void zeroness_check_add() {
    int[] opCodes = { Opcodes.DADD, Opcodes.FADD, Opcodes.IADD, Opcodes.LADD };

    for (int addOpCode : opCodes) {
        Instruction instruction = new Instruction(addOpCode);
        ProgramState ps = execute(instruction, zeroZeroPs);
        SymbolicValue peekValue = ps.peekValue();
        assertThat(peekValue).isEqualTo(sv2);
        ConstraintsByDomain constraints = ps.getConstraints(peekValue);
        assertThat(constraints.get(ZeroConstraint.class)).isEqualTo(ZeroConstraint.ZERO);
        assertThat(constraints.get(BooleanConstraint.class)).isEqualTo(BooleanConstraint.FALSE);

        ps = execute(instruction, zeroNonZeroPs);
        peekValue = ps.peekValue();/* www .  j  a v a  2 s  .  co m*/
        assertThat(peekValue).isEqualTo(sv2);
        constraints = ps.getConstraints(peekValue);
        assertThat(constraints.get(ZeroConstraint.class)).isEqualTo(ZeroConstraint.NON_ZERO);
        assertThat(constraints.get(BooleanConstraint.class)).isEqualTo(BooleanConstraint.TRUE);

        ps = execute(instruction, nonZeroZeroPs);
        peekValue = ps.peekValue();
        assertThat(peekValue).isEqualTo(sv1);
        constraints = ps.getConstraints(peekValue);
        assertThat(constraints.get(ZeroConstraint.class)).isEqualTo(ZeroConstraint.NON_ZERO);
        assertThat(constraints.get(BooleanConstraint.class)).isEqualTo(BooleanConstraint.TRUE);

        ps = execute(instruction, nonZeroNonZeroPs);
        peekValue = ps.peekValue();
        assertThat(peekValue).isNotIn(sv1, sv2);
        constraints = ps.getConstraints(peekValue);
        assertThat(constraints.get(ZeroConstraint.class)).isNull();
        assertThat(constraints.get(BooleanConstraint.class)).isNull();
    }
}

---

From source file:serianalyzer.JVMImpl.java

License:Open Source License

/**
 * @param opcode/*ww  w .j av  a 2s . c  o  m*/
 * @param s
 */
static void handleJVMInsn(int opcode, JVMStackState s) {
    BaseType o1;
    BaseType o2;
    BaseType o3;
    List<BaseType> l1;
    List<BaseType> l2;
    switch (opcode) {
    case Opcodes.NOP:
        break;

    case Opcodes.ARRAYLENGTH:
        o1 = s.pop();
        s.push(new BasicConstant(Type.INT_TYPE, 0, !(o1 != null && !o1.isTainted())));
        break;
    case Opcodes.ACONST_NULL:
        s.push(new BasicConstant(Type.VOID_TYPE, "<null>")); //$NON-NLS-1$
        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:
        s.push(new BasicConstant(Type.INT_TYPE, opcode - 3));
        break;
    case Opcodes.LCONST_0:
    case Opcodes.LCONST_1:
        s.push(new BasicConstant(Type.LONG_TYPE, opcode - 9L));
        break;
    case Opcodes.FCONST_0:
    case Opcodes.FCONST_1:
    case Opcodes.FCONST_2:
        s.push(new BasicConstant(Type.FLOAT_TYPE, opcode - 11f));
        break;
    case Opcodes.DCONST_0:
    case Opcodes.DCONST_1:
        s.push(new BasicConstant(Type.DOUBLE_TYPE, opcode - 14d));
        break;
    case Opcodes.IALOAD:
    case Opcodes.LALOAD:
    case Opcodes.FALOAD:
    case Opcodes.DALOAD:
    case Opcodes.BALOAD:
    case Opcodes.CALOAD:
    case Opcodes.SALOAD:
        o1 = s.pop();
        o2 = s.pop();
        s.push(new BasicVariable(toType(opcode), "primitive array elem", //$NON-NLS-1$
                (o1 == null || o1.isTainted()) | (o2 == null || o2.isTainted())));
        break;

    case Opcodes.AALOAD:
        o1 = s.pop();
        o2 = s.pop();
        if (o1 != null && o2 instanceof SimpleType && ((SimpleType) o2).getType().toString().startsWith("[")) { //$NON-NLS-1$
            Type atype = Type.getType(((SimpleType) o2).getType().toString().substring(1));
            if (o2.getAlternativeTypes() != null && !o2.getAlternativeTypes().isEmpty()) {
                s.clear();
                break;
            }
            s.push(new BasicVariable(atype, "array elem " + atype, o1.isTainted() | o2.isTainted())); //$NON-NLS-1$
        } else {
            s.clear();
        }
        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:
        s.pop(3);
        break;

    case Opcodes.POP2:
        s.pop();
    case Opcodes.MONITORENTER:
    case Opcodes.MONITOREXIT:
    case Opcodes.POP:
        s.pop();
        break;

    case Opcodes.DUP:
        if (!s.isEmpty()) {
            o1 = s.pop();
            s.push(o1);
            s.push(o1);
        }
        break;
    case Opcodes.DUP_X1:
        o1 = s.pop();
        o2 = s.pop();
        s.push(o1);
        s.push(o2);
        s.push(o1);
        break;
    case Opcodes.DUP_X2:
        o1 = s.pop();
        o2 = s.pop();
        o3 = s.pop();
        s.push(o1);
        s.push(o3);
        s.push(o2);
        s.push(o1);
        break;
    case Opcodes.DUP2:
        l1 = s.popWord();
        if (l1.isEmpty()) {
            log.trace("DUP2 with unknown operand"); //$NON-NLS-1$
            s.clear();
        } else {
            s.pushWord(l1);
            s.pushWord(l1);
        }
        break;
    case Opcodes.DUP2_X1:
        l1 = s.popWord();
        o1 = s.pop();
        if (l1.isEmpty()) {
            log.trace("DUP2 with unknown operand"); //$NON-NLS-1$
            s.clear();
        } else {
            s.pushWord(l1);
            s.push(o1);
            s.pushWord(l1);
        }
        break;
    case Opcodes.DUP2_X2:
        l1 = s.popWord();
        l2 = s.popWord();
        if (l1.isEmpty() || l2.isEmpty()) {
            log.trace("DUP2 with unknown operand"); //$NON-NLS-1$
            s.clear();
        } else {
            s.pushWord(l1);
            s.pushWord(l2);
            s.pushWord(l1);
        }
        break;

    case Opcodes.SWAP:
        o1 = s.pop();
        o2 = s.pop();
        s.push(o1);
        s.push(o2);
        break;

    case Opcodes.IADD:
    case Opcodes.LADD:
    case Opcodes.FADD:
    case Opcodes.DADD:
    case Opcodes.ISUB:
    case Opcodes.LSUB:
    case Opcodes.FSUB:
    case Opcodes.DSUB:
    case Opcodes.IMUL:
    case Opcodes.LMUL:
    case Opcodes.FMUL:
    case Opcodes.DMUL:
    case Opcodes.IDIV:
    case Opcodes.LDIV:
    case Opcodes.FDIV:
    case Opcodes.DDIV:
    case Opcodes.IREM:
    case Opcodes.LREM:
    case Opcodes.FREM:
    case Opcodes.DREM:
    case Opcodes.IAND:
    case Opcodes.LAND:
    case Opcodes.IOR:
    case Opcodes.LOR:
    case Opcodes.IXOR:
    case Opcodes.LXOR:
    case Opcodes.LCMP:
    case Opcodes.FCMPL:
    case Opcodes.FCMPG:
    case Opcodes.DCMPL:
    case Opcodes.DCMPG:
        s.merge(2);
        break;

    case Opcodes.ISHL:
    case Opcodes.LSHL:
    case Opcodes.ISHR:
    case Opcodes.LSHR:
    case Opcodes.IUSHR:
    case Opcodes.LUSHR:
        s.pop(); // amount
        // ignore value
        break;

    case Opcodes.INEG:
    case Opcodes.F2I:
    case Opcodes.D2I:
    case Opcodes.L2I:
        s.push(cast(s.pop(), Type.INT_TYPE));
        break;

    case Opcodes.LNEG:
    case Opcodes.I2L:
    case Opcodes.F2L:
    case Opcodes.D2L:
        s.push(cast(s.pop(), Type.LONG_TYPE));
        break;

    case Opcodes.FNEG:
    case Opcodes.I2F:
    case Opcodes.L2F:
    case Opcodes.D2F:
        s.push(cast(s.pop(), Type.FLOAT_TYPE));

    case Opcodes.DNEG:
    case Opcodes.I2D:
    case Opcodes.L2D:
    case Opcodes.F2D:
        s.push(cast(s.pop(), Type.DOUBLE_TYPE));

    case Opcodes.I2B:
        s.push(cast(s.pop(), Type.BYTE_TYPE));
        break;
    case Opcodes.I2C:
        s.push(cast(s.pop(), Type.CHAR_TYPE));
        break;
    case Opcodes.I2S:
        s.push(cast(s.pop(), Type.SHORT_TYPE));
        break;

    case Opcodes.ARETURN:
        s.clear();
        break;

    case Opcodes.IRETURN:
    case Opcodes.LRETURN:
    case Opcodes.FRETURN:
    case Opcodes.DRETURN:
    case Opcodes.RETURN:
        if (log.isTraceEnabled()) {
            log.trace("Found return " + s.pop()); //$NON-NLS-1$
        }
        s.clear();
        break;

    case Opcodes.ATHROW:
        Object thrw = s.pop();
        log.trace("Found throw " + thrw); //$NON-NLS-1$
        s.clear();
        break;

    default:
        log.warn("Unsupported instruction code " + opcode); //$NON-NLS-1$
    }
}

---

From source file:v6.java.preverifier.PreverifierMethodNode.java

License:Open Source License

/**
 * Return a boolean indicating whether the specified opcode is
 * a floating point Opcodes./*from  w w  w.j  ava  2  s  .  com*/
 * 
 * @param opcode
 * @return
 */
private boolean isFloatingPointOpcode(int opcode) {
    boolean isFloatingPointOpcode = false;

    switch (opcode) {
    case Opcodes.FCONST_0:
    case Opcodes.FCONST_1:
    case Opcodes.FCONST_2:
    case Opcodes.DCONST_0:
    case Opcodes.DCONST_1:
    case Opcodes.FLOAD:
    case Opcodes.DLOAD:
    case Opcodes.FSTORE:
    case Opcodes.DSTORE:
    case Opcodes.FALOAD:
    case Opcodes.DALOAD:
    case Opcodes.FASTORE:
    case Opcodes.DASTORE:
    case Opcodes.FADD:
    case Opcodes.DADD:
    case Opcodes.FSUB:
    case Opcodes.DSUB:
    case Opcodes.FMUL:
    case Opcodes.DMUL:
    case Opcodes.FDIV:
    case Opcodes.DDIV:
    case Opcodes.FREM:
    case Opcodes.DREM:
    case Opcodes.FNEG:
    case Opcodes.DNEG:
    case Opcodes.FCMPG:
    case Opcodes.FCMPL:
    case Opcodes.DCMPG:
    case Opcodes.DCMPL:
    case Opcodes.I2F:
    case Opcodes.F2I:
    case Opcodes.I2D:
    case Opcodes.D2I:
    case Opcodes.L2F:
    case Opcodes.L2D:
    case Opcodes.F2L:
    case Opcodes.D2L:
    case Opcodes.F2D:
    case Opcodes.D2F:
    case Opcodes.FRETURN:
    case Opcodes.DRETURN:
        isFloatingPointOpcode = true;
        break;
    }

    return isFloatingPointOpcode;
}

---

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