Revision: 5741
http://jnode.svn.sourceforge.net/jnode/?rev=5741&view=rev
Author: lsantha
Date: 2010-03-28 19:26:38 +0000 (Sun, 28 Mar 2010)
Log Message:
-----------
Added support for releasing the bytecode visitor, other fixes in reusing
bytecode visitors.
Modified Paths:
--------------
trunk/core/src/core/org/jnode/vm/compiler/NativeCodeCompiler.java
trunk/core/src/core/org/jnode/vm/x86/compiler/l1a/X86Level1ACompiler.java
Modified: trunk/core/src/core/org/jnode/vm/compiler/NativeCodeCompiler.java
===================================================================
--- trunk/core/src/core/org/jnode/vm/compiler/NativeCodeCompiler.java
2010-03-28 19:12:41 UTC (rev 5740)
+++ trunk/core/src/core/org/jnode/vm/compiler/NativeCodeCompiler.java
2010-03-28 19:26:38 UTC (rev 5741)
@@ -240,38 +240,49 @@
protected CompiledMethod doCompile(VmMethod method, NativeStream os,
int level, boolean isBootstrap) {
final CompiledMethod cm = new CompiledMethod(level);
- if (method.isNative()) {
- Object label = new Label(method.getMangledName());
- cm.setCodeStart(os.getObjectRef(label));
- } else {
- // Create the visitor
- CompilerBytecodeVisitor bcv = createBytecodeVisitor(method,
- cm, os, level, isBootstrap);
- // Wrap in verifier if needed
- if (!(bcv instanceof VerifyingCompilerBytecodeVisitor)) {
- bcv = new
VerifyingCompilerBytecodeVisitor<CompilerBytecodeVisitor>(bcv);
+ try {
+ if (method.isNative()) {
+ Object label = new Label(method.getMangledName());
+ cm.setCodeStart(os.getObjectRef(label));
+ } else {
+ // Create the visitor
+ CompilerBytecodeVisitor bcv = getBytecodeVisitor(method, cm,
os, level, isBootstrap);
+
+ try {
+ // Wrap in verifier if needed
+ if (!(bcv instanceof VerifyingCompilerBytecodeVisitor)) {
+ bcv = new
VerifyingCompilerBytecodeVisitor<CompilerBytecodeVisitor>(bcv);
+ }
+ // Get the bytecode
+ final VmByteCode bc = method.getBytecode();
+ // Create the control flow graph
+ ControlFlowGraph cfg = (ControlFlowGraph)
bc.getCompilerData();
+ if (cfg == null) {
+ cfg = new ControlFlowGraph(bc);
+ bc.setCompilerData(cfg);
+ }
+ // Compile the code 1 basic block at a time
+ final CompilerBytecodeParser parser = new
CompilerBytecodeParser(bc, cfg, bcv);
+ bcv.startMethod(method);
+ for (BasicBlock bb : cfg) {
+ bcv.startBasicBlock(bb);
+ parser.parse(bb.getStartPC(), bb.getEndPC(), false);
+ bcv.endBasicBlock();
+ }
+ bcv.endMethod();
+
+ //remove the compiler data to save memory, will be
regenerated if needed
+ bc.setCompilerData(null);
+ } finally {
+ releaseBytecodeVisitor(bcv);
+ }
}
- // Get the bytecode
- final VmByteCode bc = method.getBytecode();
- // Create the control flow graph
- ControlFlowGraph cfg = (ControlFlowGraph) bc.getCompilerData();
- if (cfg == null) {
- cfg = new ControlFlowGraph(bc);
- bc.setCompilerData(cfg);
- }
- // Compile the code 1 basic block at a time
- final CompilerBytecodeParser parser = new CompilerBytecodeParser(
- bc, cfg, bcv);
- bcv.startMethod(method);
- for (BasicBlock bb : cfg) {
- bcv.startBasicBlock(bb);
- parser.parse(bb.getStartPC(), bb.getEndPC(), false);
- bcv.endBasicBlock();
- }
- bcv.endMethod();
-
- //remove the compiler data to save memory, will be regenerated if
needed
- bc.setCompilerData(null);
+ } catch (RuntimeException x) {
+ System.err.println("ERROR in compilation of " +
method.getFullName());
+ throw x;
+ } catch (Error x) {
+ System.err.println("ERROR in compilation of " +
method.getFullName());
+ throw x;
}
return cm;
@@ -286,8 +297,8 @@
* @param isBootstrap
* @return The compiled method
*/
- protected abstract CompiledMethod doCompileAbstract(VmMethod method,
- NativeStream os, int
level, boolean isBootstrap);
+ protected abstract CompiledMethod doCompileAbstract(VmMethod method,
NativeStream os, int level,
+ boolean isBootstrap);
/**
* Create the visitor that converts bytecodes into native code.
@@ -299,10 +310,17 @@
* @param isBootstrap
* @return The new bytecode visitor.
*/
- protected abstract CompilerBytecodeVisitor createBytecodeVisitor(
- VmMethod method, CompiledMethod cm, NativeStream os, int level,
- boolean isBootstrap);
+ protected abstract CompilerBytecodeVisitor createBytecodeVisitor(VmMethod
method, CompiledMethod cm,
+
NativeStream os, int level, boolean isBootstrap);
+ protected CompilerBytecodeVisitor getBytecodeVisitor(VmMethod method,
CompiledMethod cm, NativeStream os,
+ int level, boolean
isBootstrap) {
+ return createBytecodeVisitor(method, cm, os, level, isBootstrap);
+ }
+
+ protected void releaseBytecodeVisitor(CompilerBytecodeVisitor visitor) {
+
+ }
/**
* Initialize this compiler
*
Modified:
trunk/core/src/core/org/jnode/vm/x86/compiler/l1a/X86Level1ACompiler.java
===================================================================
--- trunk/core/src/core/org/jnode/vm/x86/compiler/l1a/X86Level1ACompiler.java
2010-03-28 19:12:41 UTC (rev 5740)
+++ trunk/core/src/core/org/jnode/vm/x86/compiler/l1a/X86Level1ACompiler.java
2010-03-28 19:26:38 UTC (rev 5741)
@@ -20,8 +20,6 @@
package org.jnode.vm.x86.compiler.l1a;
-import java.util.ArrayList;
-import java.util.List;
import org.jnode.assembler.NativeStream;
import org.jnode.assembler.ObjectResolver;
import org.jnode.assembler.x86.X86BinaryAssembler;
@@ -96,8 +94,6 @@
private final ThreadLocal<X86BytecodeVisitor> byteCodeVisitorHolder = new
ThreadLocal<X86BytecodeVisitor>();
- private final ThreadLocal<List<X86BytecodeVisitor>>
byteCodeVisitorListHolder =
- new ThreadLocal<List<X86BytecodeVisitor>>();
/**
* Create the visitor that converts bytecodes into native code.
*
@@ -115,37 +111,14 @@
final EntryPoints entryPoints = getEntryPoints();
X86BytecodeVisitor byteCodeVisitor = byteCodeVisitorHolder.get();
if (byteCodeVisitor == null) {
- byteCodeVisitor = new X86BytecodeVisitor(os, cm, isBootstrap,
entryPoints,
- getMagicHelper(), getTypeSizeInfo());
- byteCodeVisitorHolder.set(byteCodeVisitor);
+ byteCodeVisitor = new X86BytecodeVisitor(os, cm, isBootstrap,
entryPoints, getMagicHelper(),
+ getTypeSizeInfo());
} else {
- if (byteCodeVisitor.isWorking()) {
- //slow path
- List<X86BytecodeVisitor> vlist =
byteCodeVisitorListHolder.get();
- if (vlist == null) {
- vlist = new ArrayList<X86BytecodeVisitor>();
- byteCodeVisitorListHolder.set(vlist);
- }
- byteCodeVisitor = null;
- for (X86BytecodeVisitor bv : vlist) {
- if (!bv.isWorking()) {
- byteCodeVisitor = bv;
- break;
- }
- }
- if (byteCodeVisitor == null) {
- byteCodeVisitor = new X86BytecodeVisitor(os, cm,
isBootstrap, entryPoints,
- getMagicHelper(), getTypeSizeInfo());
- vlist.add(byteCodeVisitor);
- } else {
- byteCodeVisitor.reset(os, cm, isBootstrap, entryPoints,
getMagicHelper(), getTypeSizeInfo());
- }
- } else {
- byteCodeVisitor.reset(os, cm, isBootstrap, entryPoints,
getMagicHelper(), getTypeSizeInfo());
- }
+ byteCodeVisitorHolder.remove();
+ byteCodeVisitor.reset(os, cm, isBootstrap, entryPoints,
getMagicHelper(), getTypeSizeInfo());
}
cbv = byteCodeVisitor;
- if (inlineMethods /*&& ((X86Assembler)os).isCode32()*/) {
+ if (inlineMethods) {
final VmClassLoader loader =
method.getDeclaringClass().getLoader();
return new OptimizingBytecodeVisitor(entryPoints, cbv, loader);
} else {
@@ -153,7 +126,18 @@
}
}
- private final MagicHelper getMagicHelper() {
+ @Override
+ protected synchronized void releaseBytecodeVisitor(CompilerBytecodeVisitor
visitor) {
+ X86BytecodeVisitor bv;
+ if (inlineMethods) {
+ bv = (X86BytecodeVisitor) ((OptimizingBytecodeVisitor)
visitor).getDelegate();
+ } else {
+ bv = (X86BytecodeVisitor) visitor;
+ }
+ byteCodeVisitorHolder.set(bv);
+ }
+
+ private MagicHelper getMagicHelper() {
final MagicHelper helper = magicHelperHolder.get();
if (helper != null) {
return helper;
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