Java Code Examples for org.apache.bcel.Const#FSUB

The following examples show how to use org.apache.bcel.Const#FSUB . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: FindFloatMath.java From spotbugs with GNU Lesser General Public License v2.1

5 votes

@Override
public void sawOpcode(int seen) {
    switch (seen) {
    case Const.FMUL:
    case Const.FDIV:
        if (getFullyQualifiedMethodName().indexOf("float") == -1 && getFullyQualifiedMethodName().indexOf("Float") == -1
                && getFullyQualifiedMethodName().indexOf("FLOAT") == -1) {
            bugReporter.reportBug(new BugInstance(this, "FL_MATH_USING_FLOAT_PRECISION", LOW_PRIORITY)
                    .addClassAndMethod(this).addSourceLine(this));
        }
        break;
    case Const.FCMPG:
    case Const.FCMPL:
        break;
    case Const.FADD:
    case Const.FSUB:
    case Const.FREM:
        if (getFullyQualifiedMethodName().indexOf("float") == -1 && getFullyQualifiedMethodName().indexOf("Float") == -1
                && getFullyQualifiedMethodName().indexOf("FLOAT") == -1) {
            bugReporter.reportBug(new BugInstance(this, "FL_MATH_USING_FLOAT_PRECISION", NORMAL_PRIORITY).addClassAndMethod(
                    this).addSourceLine(this));
        }
        break;
    default:
        break;
    }
}

Example 2

Source File: OpcodeStack.java From spotbugs with GNU Lesser General Public License v2.1

5 votes

private void pushByFloatMath(int seen, Item it, Item it2) {
    Item result;
    @SpecialKind
    int specialKind = Item.FLOAT_MATH;
    if ((it.getConstant() instanceof Float) && it2.getConstant() instanceof Float) {
        if (seen == Const.FADD) {
            result = new Item("F", Float.valueOf(constantToFloat(it2) + constantToFloat(it)));
        } else if (seen == Const.FSUB) {
            result = new Item("F", Float.valueOf(constantToFloat(it2) - constantToFloat(it)));
        } else if (seen == Const.FMUL) {
            result = new Item("F", Float.valueOf(constantToFloat(it2) * constantToFloat(it)));
        } else if (seen == Const.FDIV) {
            result = new Item("F", Float.valueOf(constantToFloat(it2) / constantToFloat(it)));
        } else if (seen == Const.FREM) {
            result = new Item("F", Float.valueOf(constantToFloat(it2) % constantToFloat(it)));
        } else {
            result = new Item("F");
        }
    } else {
        result = new Item("F");
        if (seen == Const.DDIV) {
            specialKind = Item.NASTY_FLOAT_MATH;
        }
    }
    result.setSpecialKind(specialKind);
    push(result);
}

Example 3

Source File: ArithmeticInstruction.java From commons-bcel with Apache License 2.0

4 votes

/** @return type associated with the instruction
 */
@Override
public Type getType( final ConstantPoolGen cp ) {
    final short _opcode = super.getOpcode();
    switch (_opcode) {
        case Const.DADD:
        case Const.DDIV:
        case Const.DMUL:
        case Const.DNEG:
        case Const.DREM:
        case Const.DSUB:
            return Type.DOUBLE;
        case Const.FADD:
        case Const.FDIV:
        case Const.FMUL:
        case Const.FNEG:
        case Const.FREM:
        case Const.FSUB:
            return Type.FLOAT;
        case Const.IADD:
        case Const.IAND:
        case Const.IDIV:
        case Const.IMUL:
        case Const.INEG:
        case Const.IOR:
        case Const.IREM:
        case Const.ISHL:
        case Const.ISHR:
        case Const.ISUB:
        case Const.IUSHR:
        case Const.IXOR:
            return Type.INT;
        case Const.LADD:
        case Const.LAND:
        case Const.LDIV:
        case Const.LMUL:
        case Const.LNEG:
        case Const.LOR:
        case Const.LREM:
        case Const.LSHL:
        case Const.LSHR:
        case Const.LSUB:
        case Const.LUSHR:
        case Const.LXOR:
            return Type.LONG;
        default: // Never reached
            throw new ClassGenException("Unknown type " + _opcode);
    }
}