harpoon.IR.LowQuad
Class LQop

java.lang.Object
  harpoon.IR.Quads.Qop
      harpoon.IR.LowQuad.LQop

public abstract class LQop
extends Qop

LQop is an enumerated type for the various kinds of OPER opcodes in LowQuad form.

Version:

$Id: LQop.java,v 1.2 2002/02/25 21:04:38 cananian Exp $

Author:

C. Scott Ananian <cananian@alumni.princeton.edu>

Field Summary

static int	PADD Computes the sum of two POINTER values.
static int	PCMPEQ Evaluates to true if the two POINTER values are equal.
static int	PCMPGT Evaluates to true if the first POINTER value is greater than the second POINTER value.
static int	PNEG Negates a POINTER value (used to compute differences).

Fields inherited from class harpoon.IR.Quads.Qop

ACMPEQ, D2F, D2I, D2L, DADD, DCMPEQ, DCMPGE, DCMPGT, DDIV, DMUL, DNEG, DREM, F2D, F2I, F2L, FADD, FCMPEQ, FCMPGE, FCMPGT, FDIV, FMUL, FNEG, FREM, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IAND, ICMPEQ, ICMPGT, IDIV, IMUL, INEG, IOR, IREM, ISHL, ISHR, IUSHR, IXOR, L2D, L2F, L2I, LADD, LAND, LCMPEQ, LCMPGT, LDIV, LMUL, LNEG, LOR, LREM, LSHL, LSHR, LUSHR, LXOR

Constructor Summary

LQop()

Method Summary

static Object	evaluation(int opc, Object[] opd) Evaluates a constant value for the result of an OPER, given constant values for the operands.
static int	forString(String op)
static boolean	isValid(int v)
static HClass	resultType(int v) Determines the result type of an OPER.
static String	toString(int v)

Methods inherited from class harpoon.IR.Quads.Qop

evaluate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PCMPEQ

public static final int PCMPEQ

Evaluates to true if the two POINTER values are equal.

See Also:

Constant Field Values

PCMPGT

public static final int PCMPGT

Evaluates to true if the first POINTER value is greater than the second POINTER value.

See Also:

Constant Field Values

PADD

public static final int PADD

Computes the sum of two POINTER values.

See Also:

Constant Field Values

PNEG

public static final int PNEG

Negates a POINTER value (used to compute differences).

See Also:

Constant Field Values

Constructor Detail

LQop

public LQop()

Method Detail

isValid

public static boolean isValid(int v)

toString

public static String toString(int v)

forString

public static int forString(String op)

resultType

public static HClass resultType(int v)

Determines the result type of an OPER.

evaluation

public static Object evaluation(int opc,
                                Object[] opd)

Evaluates a constant value for the result of an OPER, given constant values for the operands.