org.jikesrvm.compilers.opt.ir.ia32

Class MIR_CompareExchange

java.lang.Object

org.jikesrvm.compilers.opt.ir.InstructionFormat

org.jikesrvm.compilers.opt.ir.ia32.ArchInstructionFormat

org.jikesrvm.compilers.opt.ir.ia32.MIR_CompareExchange

public final class MIR_CompareExchange
extends ArchInstructionFormat

The MIR_CompareExchange InstructionFormat class. The header comment for Instruction contains an explanation of the role of InstructionFormats in the opt compiler's IR.

Field Summary

Fields inherited from class org.jikesrvm.compilers.opt.ir.ia32.ArchInstructionFormat

MIR_BinaryAcc_format, MIR_BinaryAcc_traits, MIR_Branch_format, MIR_Branch_traits, MIR_CacheOp_format, MIR_CacheOp_traits, MIR_Call_format, MIR_Call_traits, MIR_CaseLabel_format, MIR_CaseLabel_traits, MIR_Compare_format, MIR_Compare_traits, MIR_CompareExchange_format, MIR_CompareExchange_traits, MIR_CompareExchange8B_format, MIR_CompareExchange8B_traits, MIR_CondBranch_format, MIR_CondBranch_traits, MIR_CondBranch2_format, MIR_CondBranch2_traits, MIR_CondMove_format, MIR_CondMove_traits, MIR_ConvertDW2QW_format, MIR_ConvertDW2QW_traits, MIR_Divide_format, MIR_Divide_traits, MIR_DoubleShift_format, MIR_DoubleShift_traits, MIR_Empty_format, MIR_Empty_traits, MIR_FSave_format, MIR_FSave_traits, MIR_Lea_format, MIR_Lea_traits, MIR_LowTableSwitch_format, MIR_LowTableSwitch_traits, MIR_Move_format, MIR_Move_traits, MIR_Multiply_format, MIR_Multiply_traits, MIR_Nullary_format, MIR_Nullary_traits, MIR_RDTSC_format, MIR_RDTSC_traits, MIR_Return_format, MIR_Return_traits, MIR_Set_format, MIR_Set_traits, MIR_Test_format, MIR_Test_traits, MIR_Trap_format, MIR_Trap_traits, MIR_TrapIf_format, MIR_TrapIf_traits, MIR_Unary_format, MIR_Unary_traits, MIR_UnaryAcc_format, MIR_UnaryAcc_traits, MIR_UnaryNoRes_format, MIR_UnaryNoRes_traits, MIR_XChng_format, MIR_XChng_traits

Fields inherited from class org.jikesrvm.compilers.opt.ir.InstructionFormat

ALoad_format, ALoad_traits, ARCH_INDEPENDENT_INSTR_FORMAT_END_format, AStore_format, AStore_traits, Athrow_format, Athrow_traits, Attempt_format, Attempt_traits, BBend_format, BBend_traits, Binary_format, Binary_traits, BooleanCmp_format, BooleanCmp_traits, BoundsCheck_format, BoundsCheck_traits, CacheOp_format, CacheOp_traits, Call_format, Call_traits, CondMove_format, CondMove_traits, Empty_format, Empty_traits, GetField_format, GetField_traits, GetStatic_format, GetStatic_traits, Goto_format, Goto_traits, GuardedBinary_format, GuardedBinary_traits, GuardedSet_format, GuardedSet_traits, GuardedUnary_format, GuardedUnary_traits, IfCmp_format, IfCmp_traits, IfCmp2_format, IfCmp2_traits, InlineGuard_format, InlineGuard_traits, InstanceOf_format, InstanceOf_traits, InstrumentedCounter_format, InstrumentedCounter_traits, Label_format, Label_traits, Load_format, Load_traits, LookupSwitch_format, LookupSwitch_traits, LowTableSwitch_format, LowTableSwitch_traits, MIN_OPERAND_ARRAY_LENGTH, MonitorOp_format, MonitorOp_traits, Move_format, Move_traits, Multianewarray_format, Multianewarray_traits, New_format, New_traits, NewArray_format, NewArray_traits, Nullary_format, Nullary_traits, NullCheck_format, NullCheck_traits, OsrBarrier_format, OsrBarrier_traits, OsrPoint_format, OsrPoint_traits, Phi_format, Phi_traits, Prepare_format, Prepare_traits, Prologue_format, Prologue_traits, PutField_format, PutField_traits, PutStatic_format, PutStatic_traits, Return_format, Return_traits, Store_format, Store_traits, StoreCheck_format, StoreCheck_traits, TableSwitch_format, TableSwitch_traits, Trap_format, Trap_traits, TrapIf_format, TrapIf_traits, TypeCheck_format, TypeCheck_traits, Unary_format, Unary_traits, Unassigned_format, ZeroCheck_format, ZeroCheck_traits

Constructor Summary

Constructors

Constructor and Description
MIR_CompareExchange()

Method Summary

Modifier and Type	Method and Description
static boolean	conforms(Instruction i) InstructionFormat identification method for MIR_CompareExchange.
static boolean	conforms(Operator o) InstructionFormat identification method for MIR_CompareExchange.
static Instruction	create(Operator o, RegisterOperand OldValue, MemoryOperand MemAddr, RegisterOperand NewValue) Create an instruction of the MIR_CompareExchange instruction format.
static MemoryOperand	getClearMemAddr(Instruction i) Get the operand called MemAddr from the argument instruction clearing its instruction pointer.
static RegisterOperand	getClearNewValue(Instruction i) Get the operand called NewValue from the argument instruction clearing its instruction pointer.
static RegisterOperand	getClearOldValue(Instruction i) Get the operand called OldValue from the argument instruction clearing its instruction pointer.
static MemoryOperand	getMemAddr(Instruction i) Get the operand called MemAddr from the argument instruction.
static RegisterOperand	getNewValue(Instruction i) Get the operand called NewValue from the argument instruction.
static RegisterOperand	getOldValue(Instruction i) Get the operand called OldValue from the argument instruction.
static boolean	hasMemAddr(Instruction i) Does the argument instruction have a non-null operand named MemAddr?
static boolean	hasNewValue(Instruction i) Does the argument instruction have a non-null operand named NewValue?
static boolean	hasOldValue(Instruction i) Does the argument instruction have a non-null operand named OldValue?
static int	indexOfMemAddr(Instruction i) Return the index of the operand called MemAddr in the argument instruction.
static int	indexOfNewValue(Instruction i) Return the index of the operand called NewValue in the argument instruction.
static int	indexOfOldValue(Instruction i) Return the index of the operand called OldValue in the argument instruction.
static Instruction	mutate(Instruction i, Operator o, RegisterOperand OldValue, MemoryOperand MemAddr, RegisterOperand NewValue) Mutate the argument instruction into an instruction of the MIR_CompareExchange instruction format having the specified operator and operands.
static void	setMemAddr(Instruction i, MemoryOperand MemAddr) Set the operand called MemAddr in the argument instruction to the argument operand.
static void	setNewValue(Instruction i, RegisterOperand NewValue) Set the operand called NewValue in the argument instruction to the argument operand.
static void	setOldValue(Instruction i, RegisterOperand OldValue) Set the operand called OldValue in the argument instruction to the argument operand.

Methods inherited from class org.jikesrvm.compilers.opt.ir.InstructionFormat

fail, fail

Methods inherited from class java.lang.Object

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

Constructor Detail

MIR_CompareExchange

public MIR_CompareExchange()

Method Detail

conforms

public static boolean conforms(Instruction i)

InstructionFormat identification method for MIR_CompareExchange.

Parameters:

i - an instruction

Returns:

true if the InstructionFormat of the argument instruction is MIR_CompareExchange or false if it is not.

conforms

public static boolean conforms(Operator o)

InstructionFormat identification method for MIR_CompareExchange.

Parameters:

o - an instruction

Returns:

true if the InstructionFormat of the argument operator is MIR_CompareExchange or false if it is not.

getOldValue

public static RegisterOperand getOldValue(Instruction i)

Get the operand called OldValue from the argument instruction. Note that the returned operand will still point to its containing instruction.

Parameters:

i - the instruction to fetch the operand from

Returns:

the operand called OldValue

getClearOldValue

public static RegisterOperand getClearOldValue(Instruction i)

Get the operand called OldValue from the argument instruction clearing its instruction pointer. The returned operand will not point to any containing instruction.

Parameters:

i - the instruction to fetch the operand from

Returns:

the operand called OldValue

setOldValue

public static void setOldValue(Instruction i,
                               RegisterOperand OldValue)

Set the operand called OldValue in the argument instruction to the argument operand. The operand will now point to the argument instruction as its containing instruction.

Parameters:

i - the instruction in which to store the operand

OldValue - the operand to store

indexOfOldValue

public static int indexOfOldValue(Instruction i)

Return the index of the operand called OldValue in the argument instruction.

Parameters:

i - the instruction to access.

Returns:

the index of the operand called OldValue in the argument instruction

hasOldValue

public static boolean hasOldValue(Instruction i)

Does the argument instruction have a non-null operand named OldValue?

Parameters:

i - the instruction to access.

Returns:

true if the instruction has an non-null operand named OldValue or false if it does not.

getMemAddr

public static MemoryOperand getMemAddr(Instruction i)

Get the operand called MemAddr from the argument instruction. Note that the returned operand will still point to its containing instruction.

Parameters:

i - the instruction to fetch the operand from

Returns:

the operand called MemAddr

getClearMemAddr

public static MemoryOperand getClearMemAddr(Instruction i)

Get the operand called MemAddr from the argument instruction clearing its instruction pointer. The returned operand will not point to any containing instruction.

Parameters:

i - the instruction to fetch the operand from

Returns:

the operand called MemAddr

setMemAddr

public static void setMemAddr(Instruction i,
                              MemoryOperand MemAddr)

Set the operand called MemAddr in the argument instruction to the argument operand. The operand will now point to the argument instruction as its containing instruction.

Parameters:

i - the instruction in which to store the operand

MemAddr - the operand to store

indexOfMemAddr

public static int indexOfMemAddr(Instruction i)

Return the index of the operand called MemAddr in the argument instruction.

Parameters:

i - the instruction to access.

Returns:

the index of the operand called MemAddr in the argument instruction

hasMemAddr

public static boolean hasMemAddr(Instruction i)

Does the argument instruction have a non-null operand named MemAddr?

Parameters:

i - the instruction to access.

Returns:

true if the instruction has an non-null operand named MemAddr or false if it does not.

getNewValue

public static RegisterOperand getNewValue(Instruction i)

Get the operand called NewValue from the argument instruction. Note that the returned operand will still point to its containing instruction.

Parameters:

i - the instruction to fetch the operand from

Returns:

the operand called NewValue

getClearNewValue

public static RegisterOperand getClearNewValue(Instruction i)

Get the operand called NewValue from the argument instruction clearing its instruction pointer. The returned operand will not point to any containing instruction.

Parameters:

i - the instruction to fetch the operand from

Returns:

the operand called NewValue

setNewValue

public static void setNewValue(Instruction i,
                               RegisterOperand NewValue)

Set the operand called NewValue in the argument instruction to the argument operand. The operand will now point to the argument instruction as its containing instruction.

Parameters:

i - the instruction in which to store the operand

NewValue - the operand to store

indexOfNewValue

public static int indexOfNewValue(Instruction i)

Return the index of the operand called NewValue in the argument instruction.

Parameters:

i - the instruction to access.

Returns:

the index of the operand called NewValue in the argument instruction

hasNewValue

public static boolean hasNewValue(Instruction i)

Does the argument instruction have a non-null operand named NewValue?

Parameters:

i - the instruction to access.

Returns:

true if the instruction has an non-null operand named NewValue or false if it does not.

create

public static Instruction create(Operator o,
                                 RegisterOperand OldValue,
                                 MemoryOperand MemAddr,
                                 RegisterOperand NewValue)

Create an instruction of the MIR_CompareExchange instruction format.

Parameters:

o - the instruction's operator

OldValue - the instruction's OldValue operand

MemAddr - the instruction's MemAddr operand

NewValue - the instruction's NewValue operand

Returns:

the newly created MIR_CompareExchange instruction

mutate

public static Instruction mutate(Instruction i,
                                 Operator o,
                                 RegisterOperand OldValue,
                                 MemoryOperand MemAddr,
                                 RegisterOperand NewValue)

Mutate the argument instruction into an instruction of the MIR_CompareExchange instruction format having the specified operator and operands.

Parameters:

i - the instruction to mutate

o - the instruction's operator

OldValue - the instruction's OldValue operand

MemAddr - the instruction's MemAddr operand

NewValue - the instruction's NewValue operand

Returns:

the mutated instruction