org.jikesrvm.compilers.opt.lir2mir.ppc_32

Class BURS_TreeNode

java.lang.Object

org.jikesrvm.compilers.opt.lir2mir.AbstractBURS_TreeNode

org.jikesrvm.compilers.opt.lir2mir.ppc_32.BURS_TreeNode

public class BURS_TreeNode
extends AbstractBURS_TreeNode

An BURS_TreeNode is a node in a binary tree that is fed as input to BURS.

Machine-generated, do not edit! If you need to make changes to this file, edit BURS_TreeNode.template.

See Also:

BURS, BURS_STATE

Field Summary

Fields

Modifier and Type	Field and Description
private char	cost_any
private char	cost_boolcmp
private char	cost_czr
private char	cost_r
private char	cost_rp
private char	cost_rs
private char	cost_rz
private char	cost_stm remainder will be inserted by the BURS generator
private int	word0
private int	word1

Fields inherited from class org.jikesrvm.compilers.opt.lir2mir.AbstractBURS_TreeNode

dg_node

Constructor Summary

Constructors

Constructor and Description
BURS_TreeNode(char opcode) Constructor for leaf/auxiliary node.
BURS_TreeNode(DepGraphNode n) Constructor for interior node.

Method Summary

Modifier and Type	Method and Description
char	getCost(int goalNT)
void	initCost()
int	readPacked(int word, int shift, int mask)
int	rule(int goalNT) Get the BURS rule number associated with this tree node for a given non-terminal
void	setCost(int goalNT, char cost)
void	writePacked(int word, int mask, int shiftedValue)

Methods inherited from class org.jikesrvm.compilers.opt.lir2mir.AbstractBURS_TreeNode

create, create, getChild1, getChild2, getInstruction, getInstructionString, getNonTerminal, getOpcode, isREGISTERNode, isSuperNodeRoot, isTreeRoot, numRegisters, setChild1, setChild2, setNonTerminal, setNumRegisters, setTreeRoot, toString

Methods inherited from class java.lang.Object

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

Field Detail

cost_stm

private char cost_stm

remainder will be inserted by the BURS generator

cost_r

private char cost_r

cost_czr

private char cost_czr

cost_rs

private char cost_rs

cost_rz

private char cost_rz

cost_rp

private char cost_rp

cost_any

private char cost_any

cost_boolcmp

private char cost_boolcmp

word0

private int word0

word1

private int word1

Constructor Detail

BURS_TreeNode

public BURS_TreeNode(DepGraphNode n)

Constructor for interior node.

Parameters:

n - corresponding node from the dependence graph

BURS_TreeNode

public BURS_TreeNode(char opcode)

Constructor for leaf/auxiliary node.

Parameters:

opcode - the opcode to use for the node

Method Detail

getCost

public final char getCost(int goalNT)

Specified by:

getCost in class AbstractBURS_TreeNode

setCost

public final void setCost(int goalNT,
                          char cost)

Specified by:

setCost in class AbstractBURS_TreeNode

initCost

public final void initCost()

Specified by:

initCost in class AbstractBURS_TreeNode

writePacked

public final void writePacked(int word,
                              int mask,
                              int shiftedValue)

Specified by:

writePacked in class AbstractBURS_TreeNode

readPacked

public final int readPacked(int word,
                            int shift,
                            int mask)

Specified by:

readPacked in class AbstractBURS_TreeNode

rule

public final int rule(int goalNT)

Get the BURS rule number associated with this tree node for a given non-terminal

Specified by:

rule in class AbstractBURS_TreeNode

Parameters:

goalNT - the non-terminal we want to know the rule for (e.g. stm_NT)

Returns:

the rule number