sandmark.watermark.potkonjak
Class RegisterAllocator.IGNode

java.lang.Object
  |
  +--EDU.purdue.cs.bloat.util.GraphNode
        |
        +--sandmark.watermark.potkonjak.RegisterAllocator.IGNode

Enclosing class:

RegisterAllocator

class RegisterAllocator.IGNode

extends EDU.purdue.cs.bloat.util.GraphNode

IGNode is a node in the interference graph. Note that this node is different from the one in Liveness. For instance, this one stores information about a node's color, its weight, etc. Because nodes may be coalesced, an IGNode may represent more than one LocalExpr. That's why there is a list of definitions.

Field Summary

(package private) int	color
(package private) java.util.Set	defs
(package private) EDU.purdue.cs.bloat.tree.LocalExpr	key
(package private) float	weight
(package private) boolean	wide

Fields inherited from class EDU.purdue.cs.bloat.util.GraphNode

postIndex, preds, preIndex, succs

Constructor Summary

RegisterAllocator.IGNode(EDU.purdue.cs.bloat.tree.LocalExpr def)

Method Summary

(package private) void	coalesce(RegisterAllocator.IGNode node) Coalesce two nodes in the interference graph.
java.lang.String	toString()

Methods inherited from class EDU.purdue.cs.bloat.util.GraphNode

preds, succs

Methods inherited from class java.lang.Object

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

Field Detail

defs

java.util.Set defs

key

EDU.purdue.cs.bloat.tree.LocalExpr key

color

int color

wide

boolean wide

weight

float weight

Constructor Detail

RegisterAllocator.IGNode

public RegisterAllocator.IGNode(EDU.purdue.cs.bloat.tree.LocalExpr def)

Method Detail

coalesce

void coalesce(RegisterAllocator.IGNode node)

Coalesce two nodes in the interference graph. The weight of the other node is added to that of this node. This node also inherits all of the definitions of the other node.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object