sandmark.util.controlflowgraph
Class IntFuncSynthesizer

java.lang.Object
  |
  +--sandmark.util.controlflowgraph.ControlFlowSynthesizer
        |
        +--sandmark.util.controlflowgraph.IntFuncSynthesizer

Direct Known Subclasses:

PositiveIntSynthesizer

public abstract class IntFuncSynthesizer

extends ControlFlowSynthesizer

An IntFuncSynthesizer generates code having a control structure that matches a supplied graph. The generated code is a static int(int) method -- an integer function of one argument.

Field Summary

Fields inherited from class sandmark.util.controlflowgraph.ControlFlowSynthesizer

rng

Constructor Summary

IntFuncSynthesizer()

Method Summary

(package private) void	genLoad(CodeContext cx, int n) Generates either ILOAD_n or ILOAD n.
(package private) void	genPush(CodeContext cx, int v) Generates ICONST, BIPUSH, or SIPUSH to load a small constant value.
(package private) void	genStore(CodeContext cx, int n) Generates either ISTORE_n or ISTORE n.
(package private) de.fub.bytecode.generic.MethodGen	makeFunc(de.fub.bytecode.generic.InstructionList inslist, de.fub.bytecode.generic.ConstantPoolGen cpg) Creates a MethodGen for a public static int(int) method with a random name.

Methods inherited from class sandmark.util.controlflowgraph.ControlFlowSynthesizer

generate, makeNOPs, randomIn, setSeed, test

Methods inherited from class java.lang.Object

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

Constructor Detail

IntFuncSynthesizer

public IntFuncSynthesizer()

Method Detail

makeFunc

de.fub.bytecode.generic.MethodGen makeFunc(de.fub.bytecode.generic.InstructionList inslist,
                                           de.fub.bytecode.generic.ConstantPoolGen cpg)

Creates a MethodGen for a public static int(int) method with a random name.

genLoad

void genLoad(CodeContext cx,
             int n)

Generates either ILOAD_n or ILOAD n. If both are possible, chooses the longer form with probability VERBOSE_CHANCE.

genStore

void genStore(CodeContext cx,
              int n)

Generates either ISTORE_n or ISTORE n. If both are possible, chooses the longer form with probability VERBOSE_CHANCE.

genPush

void genPush(CodeContext cx,
             int v)

Generates ICONST, BIPUSH, or SIPUSH to load a small constant value.