Mercurial > hg > truffle
view src/share/vm/c1x/c1x_Compiler.cpp @ 2491:0654ee04b214
Merge with OpenJDK.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 22 Apr 2011 15:30:53 +0200 |
parents | 34354e2e40a3 |
children | 4e5515d09314 |
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/* * 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 "precompiled.hpp" #include "c1x/c1x_Compiler.hpp" #include "c1x/c1x_JavaAccess.hpp" #include "c1x/c1x_VMExits.hpp" #include "c1x/c1x_VMEntries.hpp" #include "c1x/c1x_VmIds.hpp" #include "c1/c1_Runtime1.hpp" C1XCompiler* C1XCompiler::_instance = NULL; C1XCompiler::C1XCompiler() { _initialized = false; assert(_instance == NULL, "only one instance allowed"); _instance = this; } // Initialization void C1XCompiler::initialize() { if (_initialized) return; CompilerThread* THREAD = CompilerThread::current(); _initialized = true; TRACE_C1X_1("C1XCompiler::initialize"); VmIds::initializeObjects(); initialize_buffer_blob(); Runtime1::initialize(THREAD->get_buffer_blob()); JNIEnv *env = ((JavaThread *) Thread::current())->jni_environment(); jclass klass = env->FindClass("com/sun/hotspot/c1x/VMEntriesNative"); if (klass == NULL) { fatal("c1x VMEntries class not found"); } env->RegisterNatives(klass, VMEntries_methods, VMEntries_methods_count()); { VM_ENTRY_MARK; check_pending_exception("Could not register natives"); } c1x_compute_offsets(); { VM_ENTRY_MARK; HandleMark hm; VMExits::setDefaultOptions(); for (int i = 0; i < Arguments::num_c1x_args(); ++i) { const char* arg = Arguments::c1x_args_array()[i]; Handle option = java_lang_String::create_from_str(arg, THREAD); jboolean result = VMExits::setOption(option); if (!result) fatal("Invalid option for C1X!"); } VMExits::initializeCompiler(); } } void C1XCompiler::initialize_buffer_blob() { CompilerThread* THREAD = CompilerThread::current(); if (THREAD->get_buffer_blob() == NULL) { // setup CodeBuffer. Preallocate a BufferBlob of size // NMethodSizeLimit plus some extra space for constants. int code_buffer_size = Compilation::desired_max_code_buffer_size() + Compilation::desired_max_constant_size(); BufferBlob* blob = BufferBlob::create("C1X temporary CodeBuffer", code_buffer_size); guarantee(blob != NULL, "must create code buffer"); THREAD->set_buffer_blob(blob); } } // Compilation entry point for methods void C1XCompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) { initialize(); VM_ENTRY_MARK; ResourceMark rm; HandleMark hm; initialize_buffer_blob(); VmIds::initializeObjects(); CompilerThread::current()->set_compiling(true); methodOop method = (methodOop) target->get_oop(); VMExits::compileMethod(VmIds::add<methodOop>(method), VmIds::toString<Handle>(method->name(), THREAD), entry_bci); CompilerThread::current()->set_compiling(false); VmIds::cleanupLocalObjects(); } // Print compilation timers and statistics void C1XCompiler::print_timers() { TRACE_C1X_1("C1XCompiler::print_timers"); } oop C1XCompiler::get_RiType(ciType *type, KlassHandle accessor, TRAPS) { if (type->is_loaded()) { if (type->is_primitive_type()) { return VMExits::createRiTypePrimitive((int) type->basic_type(), THREAD); } KlassHandle klass = (klassOop) type->get_oop(); Handle name = VmIds::toString<Handle>(klass->name(), THREAD); return createHotSpotTypeResolved(klass, name, CHECK_NULL); } else { Symbol* name = ((ciKlass *) type)->name()->get_symbol(); return VMExits::createRiTypeUnresolved(VmIds::toString<Handle>(name, THREAD), THREAD); } } oop C1XCompiler::get_RiField(ciField *field, ciInstanceKlass* accessor_klass, KlassHandle accessor, Bytecodes::Code byteCode, TRAPS) { bool will_link = field->will_link_from_vm(accessor_klass, byteCode); int offset = (field->holder()->is_loaded() && will_link) ? field->offset() : -1; Handle field_name = VmIds::toString<Handle>(field->name()->get_symbol(), CHECK_0); Handle field_holder = get_RiType(field->holder(), accessor, CHECK_0); Handle field_type = get_RiType(field->type(), accessor, CHECK_0); // TODO: implement caching return VMExits::createRiField(field_holder, field_name, field_type, offset, THREAD); } oop C1XCompiler::createHotSpotTypeResolved(KlassHandle klass, Handle name, TRAPS) { if (klass->c1x_mirror() != NULL) { return klass->c1x_mirror(); } instanceKlass::cast(HotSpotTypeResolved::klass())->initialize(CHECK_NULL); Handle obj = instanceKlass::cast(HotSpotTypeResolved::klass())->allocate_instance(CHECK_NULL); assert(obj() != NULL, "must succeed in allocating instance"); HotSpotTypeResolved::set_compiler(obj, VMExits::compilerInstance()()); if (klass->oop_is_instance()) { instanceKlass* ik = (instanceKlass*)klass()->klass_part(); Handle full_name = java_lang_String::create_from_str(ik->signature_name(), CHECK_NULL); HotSpotType::set_name(obj, full_name()); } else { HotSpotType::set_name(obj, name()); } HotSpotTypeResolved::set_javaMirror(obj, klass->java_mirror()); HotSpotTypeResolved::set_simpleName(obj, name()); HotSpotTypeResolved::set_accessFlags(obj, klass->access_flags().as_int()); HotSpotTypeResolved::set_isInterface(obj, klass->is_interface()); HotSpotTypeResolved::set_isInstanceClass(obj, klass->oop_is_instance()); if (klass->oop_is_javaArray()) { HotSpotTypeResolved::set_isArrayClass(obj, true); HotSpotTypeResolved::set_componentType(obj, NULL); } else { HotSpotTypeResolved::set_isArrayClass(obj, false); HotSpotTypeResolved::set_componentType(obj, NULL); HotSpotTypeResolved::set_isInitialized(obj, instanceKlass::cast(klass())->is_initialized()); HotSpotTypeResolved::set_instanceSize(obj, instanceKlass::cast(klass())->size_helper() * HeapWordSize); HotSpotTypeResolved::set_hasFinalizer(obj, klass->has_finalizer()); } // TODO replace these with correct values HotSpotTypeResolved::set_hasSubclass(obj, false); HotSpotTypeResolved::set_hasFinalizableSubclass(obj, false); klass->set_c1x_mirror(obj()); return obj(); } BasicType C1XCompiler::kindToBasicType(jchar ch) { switch(ch) { case 'z': return T_BOOLEAN; case 'b': return T_BYTE; case 's': return T_SHORT; case 'c': return T_CHAR; case 'i': return T_INT; case 'f': return T_FLOAT; case 'l': return T_LONG; case 'd': return T_DOUBLE; case 'a': return T_OBJECT; case 'r': return T_ADDRESS; case '-': return T_ILLEGAL; default: fatal(err_msg("unexpected CiKind: %c", ch)); break; } return T_ILLEGAL; }