org.jikesrvm.adaptive.util

Class CompilerAdviceAttribute

java.lang.Object

org.jikesrvm.adaptive.util.CompilerAdviceAttribute

public class CompilerAdviceAttribute
extends Object

Defines an attribute for compiler advice, and maintains a map allowing attributes to be retrieved by method and bytecode offset.

Each attribute encodes an compiler site and the advice for that site:

• <class> string The name of the class
• <method> string The name of the method
• <signature> string The method signature
• <advice> in The integer value for the compiler, as given in CompilerInfo
• <optLevel> in The optimization level when the Opt compiler is used

See Also:

CompilerAdvice, CompilerAdviceInfoReader

Field Summary

Fields

Modifier and Type	Field and Description
private static HashMap<CompilerAdviceAttribute,CompilerAdviceAttribute>	attribMap
private Atom	className
private int	compiler
private static CompilerAdviceAttribute	defaultAttr
private static boolean	hasAdvice
private Atom	methodName
private Atom	methodSig
private int	optLevel
private static CompilerAdviceAttribute	tempAttr

Constructor Summary

Constructors

Constructor and Description
CompilerAdviceAttribute(Atom className, Atom methodName, Atom methodSig, int compiler) Constructor
CompilerAdviceAttribute(Atom className, Atom methodName, Atom methodSig, int compiler, int optLevel) Constructor

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Atom	getClassName() Getter method for class name
int	getCompiler() Getter method for compiler ID
static CompilerAdviceAttribute	getCompilerAdviceInfo(RVMMethod method) Given a method and bytecode offset, return an compiler advice attribute or null if none is found for that method and offset.
Atom	getMethodName() Getter method for method name
Atom	getMethodSig() Getter method for method signature
int	getOptLevel() Getter method for optimization level
static boolean	hasAdvice()
int	hashCode()
static void	postBoot() Initialization of key compiler advice data structure.
static void	registerCompilerAdvice(List<CompilerAdviceAttribute> compilerAdviceList) Use a list of compiler advice attributes to create an advice map keyed on RVMMethod instances.
String	toString() Stringify this instance
static Collection<CompilerAdviceAttribute>	values()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

attribMap

private static HashMap<CompilerAdviceAttribute,CompilerAdviceAttribute> attribMap

defaultAttr

private static CompilerAdviceAttribute defaultAttr

tempAttr

private static CompilerAdviceAttribute tempAttr

hasAdvice

private static boolean hasAdvice

className

private Atom className

methodName

private Atom methodName

methodSig

private Atom methodSig

compiler

private final int compiler

optLevel

private final int optLevel

Constructor Detail

CompilerAdviceAttribute

public CompilerAdviceAttribute(Atom className,
                               Atom methodName,
                               Atom methodSig,
                               int compiler)

Constructor

Parameters:

className - The name of the class for the compiler site

methodName - The name of the method for the compiler site

methodSig - The signature of the method for the compiler site

compiler - The ID of the compiler to use for this method

See Also:

CompilerAdviceInfoReader

CompilerAdviceAttribute

public CompilerAdviceAttribute(Atom className,
                               Atom methodName,
                               Atom methodSig,
                               int compiler,
                               int optLevel)

Constructor

Parameters:

className - The name of the class for the compiler site

methodName - The name of the method for the compiler site

methodSig - The signature of the method for the compiler site

compiler - The ID of the compiler to use for this method

optLevel - The optimization level if using Opt compiler

See Also:

CompilerAdviceInfoReader

Method Detail

postBoot

public static void postBoot()

Initialization of key compiler advice data structure.

getClassName

public Atom getClassName()

Getter method for class name

Returns:

the class name for this attribute

getMethodName

public Atom getMethodName()

Getter method for method name

Returns:

the method name for this attribute

getMethodSig

public Atom getMethodSig()

Getter method for method signature

Returns:

the method signature for this attribute

getCompiler

public int getCompiler()

Getter method for compiler ID

Returns:

the compiler ID for this attribute

getOptLevel

public int getOptLevel()

Getter method for optimization level

Returns:

the optimization level for this attribute

toString

public String toString()

Stringify this instance

Overrides:

toString in class Object

Returns:

The state of this instance expressed as a string

registerCompilerAdvice

public static void registerCompilerAdvice(List<CompilerAdviceAttribute> compilerAdviceList)

Use a list of compiler advice attributes to create an advice map keyed on RVMMethod instances. This map is used by getCompilerAdviceInfo().

Parameters:

compilerAdviceList - A list of compiler advice attributes

See Also:

getCompilerAdviceInfo(org.jikesrvm.classloader.RVMMethod)

getCompilerAdviceInfo

public static CompilerAdviceAttribute getCompilerAdviceInfo(RVMMethod method)

Given a method and bytecode offset, return an compiler advice attribute or null if none is found for that method and offset.

Parameters:

method - The method containing the site in question

Returns:

Attribute advice for that site or null if none is found.

values

public static Collection<CompilerAdviceAttribute> values()

hasAdvice

public static boolean hasAdvice()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object