Mercurial > hg > truffle
view c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotMethodResolved.java @ 1433:efba53f86c4f
various fixes and enhancements
* correct refmap->oopmap conversion (register numbering, stack slot numbering)
* fixes for inlining (correct scoping in exception handler lookup, NPE in scope conversion)
* support for "jump to runtime stub" (patching code needs to be aware of jmp instruction)
* provide more information about methods (to allow inlining: has_balanced_monitors, etc.)
* fixes to signature type lookup
* isSubTypeOf: correct handling of array classes
* RiType: componentType/arrayOf
* prologue: inline cache check, icmiss stub
* klass state check (resolved but not initialized) in newinstance
* card table write barriers
* c1x classes are optional (to allow running c1 without them)
* correct for stored frame pointer in calling conventions (methods with arguments on stack)
* getType(Class<?>) for some basic types, used for optimizations and folding
* RiMethod/RiType: throw exception instead of silent failure on unsupported operations
* RiType: resolved/unresolved array type support
* refactoring: new on-demand template generation mechanism
* optimizations: template specialization for no_null_check, given length, etc.
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Thu, 16 Sep 2010 19:42:20 -0700 |
parents | abc670a709dc |
children | 20a3896518ac |
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/* * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. * * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product that is * described in this document. In particular, and without limitation, these intellectual property rights may include one * or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents or pending patent * applications in the U.S. and in other countries. * * U.S. Government Rights - Commercial software. Government users are subject to the Sun Microsystems, Inc. standard * license agreement and applicable provisions of the FAR and its supplements. * * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or registered * trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and * are trademarks or registered trademarks of SPARC International, Inc. in the U.S. and other countries. * * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company, Ltd. */ package com.sun.hotspot.c1x; import java.lang.reflect.*; import com.sun.cri.ri.*; /** * Implementation of RiMethod for resolved HotSpot methods. * * @author Thomas Wuerthinger, Lukas Stadler */ public class HotSpotMethodResolved implements HotSpotMethod { private final long vmId; private final String name; // cached values private byte[] code; private int accessFlags = -1; private int maxLocals = -1; private int maxStackSize = -1; private RiExceptionHandler[] exceptionHandlers; private RiSignature signature; private RiType holder; private Boolean hasBalancedMonitors; public HotSpotMethodResolved(long vmId, String name) { this.vmId = vmId; this.name = name; } @Override public int accessFlags() { if (accessFlags == -1) { accessFlags = Compiler.getVMEntries().RiMethod_accessFlags(vmId); } return accessFlags; } @Override public boolean canBeStaticallyBound() { return isLeafMethod() || Modifier.isStatic(accessFlags()); } @Override public byte[] code() { if (code == null) { code = Compiler.getVMEntries().RiMethod_code(vmId); } return code; } @Override public RiExceptionHandler[] exceptionHandlers() { if (exceptionHandlers == null) { exceptionHandlers = Compiler.getVMEntries().RiMethod_exceptionHandlers(vmId); } return exceptionHandlers; } @Override public boolean hasBalancedMonitors() { if (hasBalancedMonitors == null) { hasBalancedMonitors = Compiler.getVMEntries().RiMethod_hasBalancedMonitors(vmId); } return hasBalancedMonitors; } @Override public RiType holder() { if (holder == null) { holder = Compiler.getVMEntries().RiMethod_holder(vmId); } return holder; } @Override public boolean isClassInitializer() { return "<clinit>".equals(name); } @Override public boolean isConstructor() { return "<init>".equals(name); } @Override public boolean isLeafMethod() { return Modifier.isFinal(accessFlags()) || Modifier.isPrivate(accessFlags()); } @Override public boolean isOverridden() { throw new UnsupportedOperationException("isOverridden"); } @Override public boolean isResolved() { return true; } @Override public String jniSymbol() { throw new UnsupportedOperationException("jniSymbol"); } @Override public Object liveness(int bci) { return null; } @Override public int maxLocals() { if (maxLocals == -1) { maxLocals = Compiler.getVMEntries().RiMethod_maxLocals(vmId); } return maxLocals; } @Override public int maxStackSize() { if (maxStackSize == -1) { maxStackSize = Compiler.getVMEntries().RiMethod_maxStackSize(vmId); } return maxStackSize; } @Override public RiMethodProfile methodData() { return null; } @Override public String name() { return name; } @Override public RiSignature signature() { if (signature == null) { signature = new HotSpotSignature(Compiler.getVMEntries().RiMethod_signature(vmId)); } return signature; } @Override public String toString() { return "HotSpotMethod<" + name + ">"; } }