org.graalvm.compiler.core.match

Class MatchPattern

java.lang.Object

org.graalvm.compiler.core.match.MatchPattern

public class MatchPattern
extends Object

A simple recursive pattern matcher for a DAG of nodes.

Constructor Summary

Constructors

Constructor and Description
MatchPattern(Class<? extends Node> nodeClass, String name, boolean singleUser, boolean consumable, boolean ignoresSideEffects)
MatchPattern(Class<? extends Node> nodeClass, String name, MatchPattern first, MatchPattern second, MatchPattern third, Position[] inputs, boolean singleUser, boolean consumable, boolean ignoresSideEffects)
MatchPattern(Class<? extends Node> nodeClass, String name, MatchPattern first, MatchPattern second, Position[] inputs, boolean singleUser, boolean consumable, boolean ignoresSideEffects)
MatchPattern(Class<? extends Node> nodeClass, String name, MatchPattern first, Position[] inputs, boolean singleUser, boolean consumable, boolean ignoresSideEffects)
MatchPattern(String name, boolean singleUser, boolean consumable, boolean ignoresSideEffects)

Method Summary

Modifier and Type	Method and Description
String	formatMatch(Node root) For a node starting at root, produce a String showing the inputs that matched against this rule.
static boolean	isSingleValueUser(Node node)
org.graalvm.compiler.core.match.MatchPattern.Result	matchShape(Node node, MatchStatement statement) Recursively match the shape of the tree without worry about named values.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

MatchPattern

public MatchPattern(String name,
                    boolean singleUser,
                    boolean consumable,
                    boolean ignoresSideEffects)

MatchPattern

public MatchPattern(Class<? extends Node> nodeClass,
                    String name,
                    boolean singleUser,
                    boolean consumable,
                    boolean ignoresSideEffects)

MatchPattern

public MatchPattern(Class<? extends Node> nodeClass,
                    String name,
                    MatchPattern first,
                    Position[] inputs,
                    boolean singleUser,
                    boolean consumable,
                    boolean ignoresSideEffects)

MatchPattern

public MatchPattern(Class<? extends Node> nodeClass,
                    String name,
                    MatchPattern first,
                    MatchPattern second,
                    Position[] inputs,
                    boolean singleUser,
                    boolean consumable,
                    boolean ignoresSideEffects)

MatchPattern

public MatchPattern(Class<? extends Node> nodeClass,
                    String name,
                    MatchPattern first,
                    MatchPattern second,
                    MatchPattern third,
                    Position[] inputs,
                    boolean singleUser,
                    boolean consumable,
                    boolean ignoresSideEffects)

Method Detail

matchShape

public org.graalvm.compiler.core.match.MatchPattern.Result matchShape(Node node,
                                                                      MatchStatement statement)

Recursively match the shape of the tree without worry about named values. Most matches fail at this point so it's performed first.

Parameters:

node -

statement -

Returns:

Result.OK if the shape of the pattern matches.

isSingleValueUser

public static boolean isSingleValueUser(Node node)

formatMatch

public String formatMatch(Node root)

For a node starting at root, produce a String showing the inputs that matched against this rule. It's assumed that a match has already succeeded against this rule, otherwise the printing may produce exceptions.

toString

public String toString()

Overrides:

toString in class Object