com.oracle.graal.compiler.common.type

Class ArithmeticOpTable.ShiftOp<OP>

java.lang.Object

com.oracle.graal.compiler.common.type.ArithmeticOpTable.Op

com.oracle.graal.compiler.common.type.ArithmeticOpTable.ShiftOp<OP>

Direct Known Subclasses:

ArithmeticOpTable.ShiftOp.Shl, ArithmeticOpTable.ShiftOp.Shr, ArithmeticOpTable.ShiftOp.UShr

Enclosing class:

ArithmeticOpTable

public abstract static class ArithmeticOpTable.ShiftOp<OP>
extends ArithmeticOpTable.Op

Describes a shift operation. The right argument of a shift operation always has kind Kind.Int.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ArithmeticOpTable.ShiftOp.Shl
static class	ArithmeticOpTable.ShiftOp.Shr
static class	ArithmeticOpTable.ShiftOp.UShr

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ShiftOp(String operation)

Method Summary

Modifier and Type	Method and Description
abstract Constant	foldConstant(Constant c, int amount) Apply the shift to a constant.
abstract Stamp	foldStamp(Stamp s, IntegerStamp amount) Apply the shift to a stamp.
abstract int	getShiftAmountMask(Stamp s) Get the shift amount mask for a given result stamp.

Methods inherited from class com.oracle.graal.compiler.common.type.ArithmeticOpTable.Op

equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ShiftOp

protected ShiftOp(String operation)

Method Detail

foldConstant

public abstract Constant foldConstant(Constant c,
                                      int amount)

Apply the shift to a constant.

foldStamp

public abstract Stamp foldStamp(Stamp s,
                                IntegerStamp amount)

Apply the shift to a stamp.

getShiftAmountMask

public abstract int getShiftAmountMask(Stamp s)

Get the shift amount mask for a given result stamp.