Mercurial > hg > graal-jvmci-8
view src/share/vm/c1x/c1x_VmIds.cpp @ 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 | b61a43cd1255 |
children | 72cfb36c6bb2 |
line wrap: on
line source
/* * Copyright 2000-2010 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ # include "incls/_precompiled.incl" # include "incls/_c1x_VmIds.cpp.incl" // VmIds implementation GrowableArray<address>* VmIds::_stubs = NULL; GrowableArray<jobject>* VmIds::_localHandles = NULL; void VmIds::initializeObjects() { if (_stubs == NULL) { assert(_localHandles == NULL, "inconsistent state"); _stubs = new (ResourceObj::C_HEAP) GrowableArray<address> (64, true); _localHandles = new (ResourceObj::C_HEAP) GrowableArray<jobject> (64, true); } assert(_localHandles->length() == 0, "invalid state"); } void VmIds::cleanupLocalObjects() { for (int i = 0; i < _localHandles->length(); i++) { JNIHandles::destroy_global(_localHandles->at(i)); } _localHandles->clear(); } jlong VmIds::addStub(address stub) { assert(!_stubs->contains(stub), "duplicate stub"); return _stubs->append(stub) | STUB; } jlong VmIds::add(Handle obj, CompilerObjectType type) { assert(!obj.is_null(), "cannot add NULL handle"); int idx = -1; for (int i = 0; i < _localHandles->length(); i++) if (JNIHandles::resolve_non_null(_localHandles->at(i)) == obj()) { idx = i; break; } if (idx == -1) { if (JavaThread::current()->thread_state() == _thread_in_vm) { idx = _localHandles->append(JNIHandles::make_global(obj)); } else { VM_ENTRY_MARK; idx = _localHandles->append(JNIHandles::make_global(obj)); } } return idx | type; } address VmIds::getStub(jlong id) { assert((id & TYPE_MASK) == STUB, "wrong id type, STUB expected"); assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _stubs->length(), "STUB index out of bounds"); return _stubs->at(id & ~TYPE_MASK); } oop VmIds::getObject(jlong id) { assert((id & TYPE_MASK) != STUB, "wrong id type"); assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _localHandles->length(), "index out of bounds"); return JNIHandles::resolve_non_null(_localHandles->at(id & ~TYPE_MASK)); }