Package org.eclipse.m2m.atl.emftvm.jit

Class CodeBlockJIT

java.lang.Object

org.eclipse.m2m.atl.emftvm.jit.CodeBlockJIT

All Implemented Interfaces:

org.objectweb.asm.Opcodes

public class CodeBlockJIT
extends Object
implements org.objectweb.asm.Opcodes

JIT that generates and loads a natively generated CodeBlock for a given EMFTVM bytecode CodeBlock.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	BASE_PACKAGE
protected final Map<String,byte[]>	byteCode	Map of class names to generated bytecode.
protected final org.eclipse.m2m.atl.emftvm.jit.CodeBlockJIT.JITClassLoader	classLoader	Internal ClassLoader instance for loading the generated classes.
protected final Map<String,CodeBlock>	codeBlocks	Map of class names to input CodeBlocks for the JIT.
protected final ExecEnv	env	The execution environment to JIT for.

Fields inherited from interface org.objectweb.asm.Opcodes

AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V20, V21, V22, V23, V24, V25, V9

Constructor Summary

Constructors

Constructor	Description
CodeBlockJIT(ExecEnv env)	Creates a new CodeBlockJIT.

Method Summary

Modifier and Type	Method	Description
void	cleanup()	Cleans up all generated bytecode.
protected static void	generateCheckMonitor(org.objectweb.asm.MethodVisitor mv, int pc)	Generates bytecode for checking the VM monitor
protected static void	generateConstructor(org.objectweb.asm.MethodVisitor init, String className)	Generates a constructor for the JITCodeBlock.
protected void	generateExecute(org.objectweb.asm.MethodVisitor execute, CodeBlock cb, String className)	Generates an execute method for the JITCodeBlock.
ExecEnv	getEnv()	The execution environment to JIT for.
protected String	getNextClassName()	Returns the next class name to use for JIT output.
protected byte[]	internalJit(CodeBlock cb, String className)	Performs the actual JIT-compile of cb into a JITCodeBlock class with name className.
boolean	isDumpBytecode()	Returns whether or not to dump the generated bytecode to a class file.
JITCodeBlock	jit(CodeBlock cb)	JIT-compiles cb into a natively implemented CodeBlock.
void	setDumpBytecode(boolean dumpBytecode)	Sets whether or not to dump the generated bytecode to a class file.

Methods inherited from class java.lang.Object

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

Field Details

BASE_PACKAGE

public static final String BASE_PACKAGE

See Also:

• Constant Field Values

codeBlocks

protected final Map<String,CodeBlock> codeBlocks

Map of class names to input CodeBlocks for the JIT.

classLoader

protected final org.eclipse.m2m.atl.emftvm.jit.CodeBlockJIT.JITClassLoader classLoader

Internal ClassLoader instance for loading the generated classes.

env

protected final ExecEnv env

The execution environment to JIT for.

byteCode

protected final Map<String,byte[]> byteCode

Map of class names to generated bytecode.

Constructor Details

CodeBlockJIT

public CodeBlockJIT(ExecEnv env)

Creates a new CodeBlockJIT.

Parameters:

env - the execution environment to JIT for

Method Details

jit

public JITCodeBlock jit(CodeBlock cb)
                 throws ClassNotFoundException,
IllegalArgumentException,
SecurityException,
InstantiationException,
IllegalAccessException,
InvocationTargetException,
NoSuchMethodException

JIT-compiles cb into a natively implemented CodeBlock.

Parameters:

cb - the regular EMFTVM bytecode CodeBlock

Returns:

an instance of the JIT-generated CodeBlock

Throws:

ClassNotFoundException

IllegalArgumentException

SecurityException

InstantiationException

IllegalAccessException

InvocationTargetException

NoSuchMethodException

getNextClassName

protected String getNextClassName()

Returns the next class name to use for JIT output.

Returns:

the next class name to use for JIT output

internalJit

protected byte[] internalJit(CodeBlock cb,
 String className)

Performs the actual JIT-compile of cb into a JITCodeBlock class with name className.

Parameters:

cb - the CodeBlock to JIT-compile

className - the class name for the generated class

Returns:

the generated class data

generateConstructor

protected static void generateConstructor(org.objectweb.asm.MethodVisitor init,
 String className)

Generates a constructor for the JITCodeBlock.

Parameters:

init - the constructor visitor

className - the name of the generated class

generateExecute

protected void generateExecute(org.objectweb.asm.MethodVisitor execute,
 CodeBlock cb,
 String className)

Generates an execute method for the JITCodeBlock.

Parameters:

execute - the execute method visitor

cb - the CodeBlock to JIT-compile

className - the name of the generated class

generateCheckMonitor

protected static void generateCheckMonitor(org.objectweb.asm.MethodVisitor mv,
 int pc)

Generates bytecode for checking the VM monitor

Parameters:

mv - the method visitor to generate code for

pc - the current program counter

getEnv

public ExecEnv getEnv()

The execution environment to JIT for.

Returns:

the env

isDumpBytecode

public boolean isDumpBytecode()

Returns whether or not to dump the generated bytecode to a class file.

Returns:

whether or not to dump the generated bytecode to a class file

setDumpBytecode

public void setDumpBytecode(boolean dumpBytecode)

Sets whether or not to dump the generated bytecode to a class file.

Parameters:

dumpBytecode - whether or not to dump the generated bytecode to a class file

cleanup

public void cleanup()

Cleans up all generated bytecode.