org.jikesrvm.compilers.opt.ir.ppc

Class MIR_Branch

java.lang.Object

org.jikesrvm.compilers.opt.ir.InstructionFormat

org.jikesrvm.compilers.opt.ir.ppc.ArchInstructionFormat

org.jikesrvm.compilers.opt.ir.ppc.MIR_Branch

public final class MIR_Branch
extends ArchInstructionFormat

The MIR_Branch 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.ppc.ArchInstructionFormat

MIR_Binary_format, MIR_Binary_traits, MIR_Branch_format, MIR_Branch_traits, MIR_CacheOp_format, MIR_CacheOp_traits, MIR_Call_format, MIR_Call_traits, MIR_CondBranch_format, MIR_CondBranch_traits, MIR_CondBranch2_format, MIR_CondBranch2_traits, MIR_CondCall_format, MIR_CondCall_traits, MIR_Condition_format, MIR_Condition_traits, MIR_DataInt_format, MIR_DataInt_traits, MIR_DataLabel_format, MIR_DataLabel_traits, MIR_Empty_format, MIR_Empty_traits, MIR_Load_format, MIR_Load_traits, MIR_LoadUpdate_format, MIR_LoadUpdate_traits, MIR_LowTableSwitch_format, MIR_LowTableSwitch_traits, MIR_Move_format, MIR_Move_traits, MIR_Nullary_format, MIR_Nullary_traits, MIR_Return_format, MIR_Return_traits, MIR_RotateAndMask_format, MIR_RotateAndMask_traits, MIR_Store_format, MIR_Store_traits, MIR_StoreUpdate_format, MIR_StoreUpdate_traits, MIR_Ternary_format, MIR_Ternary_traits, MIR_Trap_format, MIR_Trap_traits, MIR_Unary_format, MIR_Unary_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_Branch()

Method Summary

Modifier and Type	Method and Description
static boolean	conforms(Instruction i) InstructionFormat identification method for MIR_Branch.
static boolean	conforms(Operator o) InstructionFormat identification method for MIR_Branch.
static Instruction	create(Operator o) Create an instruction of the MIR_Branch instruction format.
static Instruction	create(Operator o, BranchOperand Target) Create an instruction of the MIR_Branch instruction format.
static BranchOperand	getClearTarget(Instruction i) Get the operand called Target from the argument instruction clearing its instruction pointer.
static BranchOperand	getTarget(Instruction i) Get the operand called Target from the argument instruction.
static boolean	hasTarget(Instruction i) Does the argument instruction have a non-null operand named Target?
static int	indexOfTarget(Instruction i) Return the index of the operand called Target in the argument instruction.
static Instruction	mutate(Instruction i, Operator o) Mutate the argument instruction into an instruction of the MIR_Branch instruction format having the specified operator and operands.
static Instruction	mutate(Instruction i, Operator o, BranchOperand Target) Mutate the argument instruction into an instruction of the MIR_Branch instruction format having the specified operator and operands.
static void	setTarget(Instruction i, BranchOperand Target) Set the operand called Target 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_Branch

public MIR_Branch()

Method Detail

conforms

public static boolean conforms(Instruction i)

InstructionFormat identification method for MIR_Branch.

Parameters:

i - an instruction

Returns:

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

conforms

public static boolean conforms(Operator o)

InstructionFormat identification method for MIR_Branch.

Parameters:

o - an instruction

Returns:

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

getTarget

public static BranchOperand getTarget(Instruction i)

Get the operand called Target 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 Target

getClearTarget

public static BranchOperand getClearTarget(Instruction i)

Get the operand called Target 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 Target

setTarget

public static void setTarget(Instruction i,
                             BranchOperand Target)

Set the operand called Target 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

Target - the operand to store

indexOfTarget

public static int indexOfTarget(Instruction i)

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

Parameters:

i - the instruction to access.

Returns:

the index of the operand called Target in the argument instruction

hasTarget

public static boolean hasTarget(Instruction i)

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

Parameters:

i - the instruction to access.

Returns:

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

create

public static Instruction create(Operator o,
                                 BranchOperand Target)

Create an instruction of the MIR_Branch instruction format.

Parameters:

o - the instruction's operator

Target - the instruction's Target operand

Returns:

the newly created MIR_Branch instruction

mutate

public static Instruction mutate(Instruction i,
                                 Operator o,
                                 BranchOperand Target)

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

Parameters:

i - the instruction to mutate

o - the instruction's operator

Target - the instruction's Target operand

Returns:

the mutated instruction

create

public static Instruction create(Operator o)

Create an instruction of the MIR_Branch instruction format.

Parameters:

o - the instruction's operator

Returns:

the newly created MIR_Branch instruction

mutate

public static Instruction mutate(Instruction i,
                                 Operator o)

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

Parameters:

i - the instruction to mutate

o - the instruction's operator

Returns:

the mutated instruction