org.graalvm.compiler.lir

Class LIRValueUtil

java.lang.Object

org.graalvm.compiler.lir.LIRValueUtil

public final class LIRValueUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
LIRValueUtil()

Method Summary

Modifier and Type	Method and Description
static Constant	asConstant(Value value)
static ConstantValue	asConstantValue(Value value)
static JavaConstant	asJavaConstant(Value value)
static Variable	asVariable(Value value) Return the value as a Variable, removing an optional cast from it.
static VirtualStackSlot	asVirtualStackSlot(Value value)
static boolean	differentRegisters(Object... values) Checks if all the provided values are different physical registers.
static boolean	isCast(Value value)
static boolean	isConstantValue(Value value)
static boolean	isIntConstant(Value value, long expected)
static boolean	isJavaConstant(Value value)
static boolean	isNullConstant(Value value)
static boolean	isStackSlotValue(Value value)
static boolean	isVariable(Value value) Determine if the value, after removing an optional cast, is a variable.
static boolean	isVirtualStackSlot(Value value)
static boolean	sameRegister(Value v1, Value v2)
static boolean	sameRegister(Value v1, Value v2, Value v3)
static Value	stripCast(Value value)
static Value[]	subtractRegisters(Value[] x, Value[] y) Subtract sets of registers (x - y).

Methods inherited from class java.lang.Object

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

Constructor Detail

LIRValueUtil

public LIRValueUtil()

Method Detail

isVariable

public static boolean isVariable(Value value)

Determine if the value, after removing an optional cast, is a variable. This method should always be used instead of an instanceof Variable check.

asVariable

public static Variable asVariable(Value value)

Return the value as a Variable, removing an optional cast from it. LIRValueUtil.isVariable(Value) must have returned true on this value. This method should always be used instead of a cast to Variable.

isConstantValue

public static boolean isConstantValue(Value value)

asConstantValue

public static ConstantValue asConstantValue(Value value)

asConstant

public static Constant asConstant(Value value)

isJavaConstant

public static boolean isJavaConstant(Value value)

asJavaConstant

public static JavaConstant asJavaConstant(Value value)

isNullConstant

public static boolean isNullConstant(Value value)

isIntConstant

public static boolean isIntConstant(Value value,
                                    long expected)

isStackSlotValue

public static boolean isStackSlotValue(Value value)

isVirtualStackSlot

public static boolean isVirtualStackSlot(Value value)

asVirtualStackSlot

public static VirtualStackSlot asVirtualStackSlot(Value value)

sameRegister

public static boolean sameRegister(Value v1,
                                   Value v2)

sameRegister

public static boolean sameRegister(Value v1,
                                   Value v2,
                                   Value v3)

isCast

public static boolean isCast(Value value)

stripCast

public static Value stripCast(Value value)

differentRegisters

public static boolean differentRegisters(Object... values)

Checks if all the provided values are different physical registers. The parameters can be either registers, values or arrays of them. All values that are not registers are ignored.

subtractRegisters

public static Value[] subtractRegisters(Value[] x,
                                        Value[] y)

Subtract sets of registers (x - y).

Parameters:

x - a set of register to subtract from.

y - a set of registers to subtract.

Returns:

resulting set of registers (x - y).