Mercurial > hg > truffle
view src/share/vm/graal/graalCompiler.cpp @ 7115:1c76a458616e
simplified TLAB allocation (don't use + and -)
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Fri, 30 Nov 2012 12:08:38 +0100 |
parents | eec7173947a1 |
children | 1baf7f1e3f23 |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #include "precompiled.hpp" #include "memory/oopFactory.hpp" #include "runtime/javaCalls.hpp" #include "graal/graalCompiler.hpp" #include "graal/graalJavaAccess.hpp" #include "graal/graalVMToCompiler.hpp" #include "graal/graalCompilerToVM.hpp" #include "graal/graalVmIds.hpp" #include "graal/graalEnv.hpp" #include "c1/c1_Runtime1.hpp" #include "runtime/arguments.hpp" #include "runtime/compilationPolicy.hpp" GraalCompiler* GraalCompiler::_instance = NULL; GraalCompiler::GraalCompiler() { _initialized = false; assert(_instance == NULL, "only one instance allowed"); _instance = this; } // Initialization void GraalCompiler::initialize() { ThreadToNativeFromVM trans(JavaThread::current()); JavaThread* THREAD = JavaThread::current(); TRACE_graal_1("GraalCompiler::initialize"); unsigned long heap_end = (long) Universe::heap()->reserved_region().end(); unsigned long allocation_end = heap_end + 16l * 1024 * 1024 * 1024; guarantee(heap_end < allocation_end, "heap end too close to end of address space (might lead to erroneous TLAB allocations)"); NOT_LP64(error("check TLAB allocation code for address space conflicts")); _deopted_leaf_graph_count = 0; initialize_buffer_blob(); Runtime1::initialize(THREAD->get_buffer_blob()); JNIEnv *env = ((JavaThread *) Thread::current())->jni_environment(); jclass klass = env->FindClass("com/oracle/graal/hotspot/bridge/CompilerToVMImpl"); if (klass == NULL) { tty->print_cr("graal CompilerToVMImpl class not found"); vm_abort(false); } env->RegisterNatives(klass, CompilerToVM_methods, CompilerToVM_methods_count()); ResourceMark rm; HandleMark hm; { VM_ENTRY_MARK; check_pending_exception("Could not register natives"); } graal_compute_offsets(); { VM_ENTRY_MARK; HandleMark hm; VMToCompiler::setDefaultOptions(); for (int i = 0; i < Arguments::num_graal_args(); ++i) { const char* arg = Arguments::graal_args_array()[i]; Handle option = java_lang_String::create_from_str(arg, THREAD); jboolean result = VMToCompiler::setOption(option); if (!result) { tty->print_cr("Invalid option for graal: -G:%s", arg); vm_abort(false); } } if (UseCompiler) { VMToCompiler::startCompiler(); _initialized = true; if (BootstrapGraal) { VMToCompiler::bootstrap(); } } } } void GraalCompiler::deopt_leaf_graph(jlong leaf_graph_id) { assert(leaf_graph_id != -1, "unexpected leaf graph id"); if (_deopted_leaf_graph_count < LEAF_GRAPH_ARRAY_SIZE) { MutexLockerEx y(GraalDeoptLeafGraphIds_lock, Mutex::_no_safepoint_check_flag); if (_deopted_leaf_graph_count < LEAF_GRAPH_ARRAY_SIZE) { _deopted_leaf_graphs[_deopted_leaf_graph_count++] = leaf_graph_id; } } } oop GraalCompiler::dump_deopted_leaf_graphs(TRAPS) { if (_deopted_leaf_graph_count == 0) { return NULL; } jlong* elements; int length; { MutexLockerEx y(GraalDeoptLeafGraphIds_lock, Mutex::_no_safepoint_check_flag); if (_deopted_leaf_graph_count == 0) { return NULL; } if (_deopted_leaf_graph_count == LEAF_GRAPH_ARRAY_SIZE) { length = 0; } else { length = _deopted_leaf_graph_count; } elements = new jlong[length]; for (int i = 0; i < length; i++) { elements[i] = _deopted_leaf_graphs[i]; } _deopted_leaf_graph_count = 0; } typeArrayOop array = oopFactory::new_longArray(length, CHECK_NULL); for (int i = 0; i < length; i++) { array->long_at_put(i, elements[i]); } delete elements; return array; } void GraalCompiler::initialize_buffer_blob() { JavaThread* THREAD = JavaThread::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("graal temporary CodeBuffer", code_buffer_size); guarantee(blob != NULL, "must create code buffer"); THREAD->set_buffer_blob(blob); } } void GraalCompiler::compile_method(methodHandle method, int entry_bci, jboolean blocking) { EXCEPTION_CONTEXT if (!_initialized) { method->clear_queued_for_compilation(); method->invocation_counter()->reset(); method->backedge_counter()->reset(); return; } assert(_initialized, "must already be initialized"); ResourceMark rm; assert(JavaThread::current()->env() == NULL, "ciEnv should be null"); JavaThread::current()->set_compiling(true); Handle holder = GraalCompiler::createHotSpotResolvedObjectType(method, CHECK); jboolean success = VMToCompiler::compileMethod(method(), holder, entry_bci, blocking, method->graal_priority()); JavaThread::current()->set_compiling(false); if (success != JNI_TRUE) { method->clear_queued_for_compilation(); CompilationPolicy::policy()->delay_compilation(method()); } } // Compilation entry point for methods void GraalCompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) { ShouldNotReachHere(); } void GraalCompiler::exit() { if (_initialized) { VMToCompiler::shutdownCompiler(); } } // Print compilation timers and statistics void GraalCompiler::print_timers() { TRACE_graal_1("GraalCompiler::print_timers"); } Handle GraalCompiler::get_JavaType(Symbol* klass_name, TRAPS) { return VMToCompiler::createUnresolvedJavaType(VmIds::toString<Handle>(klass_name, THREAD), THREAD); } Handle GraalCompiler::get_JavaTypeFromSignature(Symbol* signature, KlassHandle loading_klass, TRAPS) { BasicType field_type = FieldType::basic_type(signature); // If the field is a pointer type, get the klass of the // field. if (field_type == T_OBJECT || field_type == T_ARRAY) { KlassHandle handle = GraalEnv::get_klass_by_name(loading_klass, signature, false); if (handle.is_null()) { return get_JavaType(signature, CHECK_NULL); } else { return get_JavaType(handle, CHECK_NULL); } } else { return VMToCompiler::createPrimitiveJavaType(field_type, CHECK_NULL); } } Handle GraalCompiler::get_JavaType(constantPoolHandle cp, int index, KlassHandle loading_klass, TRAPS) { bool is_accessible = false; KlassHandle klass = GraalEnv::get_klass_by_index(cp, index, is_accessible, loading_klass); oop catch_class = NULL; if (klass.is_null()) { Symbol* klass_name = NULL; { // We have to lock the cpool to keep the oop from being resolved // while we are accessing it. But we must release the lock before // calling up into Java. MonitorLockerEx ml(cp->lock()); constantTag tag = cp->tag_at(index); if (tag.is_klass()) { // The klass has been inserted into the constant pool // very recently. return GraalCompiler::get_JavaType(cp->resolved_klass_at(index), CHECK_NULL); } else if (tag.is_symbol()) { klass_name = cp->symbol_at(index); } else { assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag"); klass_name = cp->unresolved_klass_at(index); } } return GraalCompiler::get_JavaType(klass_name, CHECK_NULL); } else { return GraalCompiler::get_JavaType(klass, CHECK_NULL); } } Handle GraalCompiler::get_JavaTypeFromClass(Handle java_class, TRAPS) { oop graal_mirror = java_lang_Class::graal_mirror(java_class()); if (graal_mirror != NULL) { return graal_mirror; } if (java_lang_Class::is_primitive(java_class())) { BasicType basicType = java_lang_Class::primitive_type(java_class()); return VMToCompiler::createPrimitiveJavaType((int) basicType, THREAD); } else { KlassHandle klass = java_lang_Class::as_Klass(java_class()); Handle name = java_lang_String::create_from_symbol(klass->name(), CHECK_NULL); return GraalCompiler::createHotSpotResolvedObjectType(klass, name, CHECK_NULL); } } Handle GraalCompiler::get_JavaType(KlassHandle klass, TRAPS) { Handle name = VmIds::toString<Handle>(klass->name(), THREAD); return createHotSpotResolvedObjectType(klass, name, CHECK_NULL); } Handle GraalCompiler::get_JavaField(int offset, int flags, Symbol* field_name, Handle field_holder, Handle field_type, TRAPS) { Handle name = VmIds::toString<Handle>(field_name, CHECK_NULL); return VMToCompiler::createJavaField(field_holder, name, field_type, offset, flags, false, CHECK_NULL); } Handle GraalCompiler::createHotSpotResolvedObjectType(methodHandle method, TRAPS) { KlassHandle klass = method->method_holder(); oop java_class = klass->java_mirror(); oop graal_mirror = java_lang_Class::graal_mirror(java_class); if (graal_mirror != NULL) { assert(graal_mirror->is_a(HotSpotResolvedObjectType::klass()), "unexpected class..."); return graal_mirror; } Handle name = java_lang_String::create_from_symbol(klass->name(), CHECK_NULL); return GraalCompiler::createHotSpotResolvedObjectType(klass, name, CHECK_NULL); } Handle GraalCompiler::createHotSpotResolvedObjectType(KlassHandle klass, Handle name, TRAPS) { oop java_class = klass->java_mirror(); oop graal_mirror = java_lang_Class::graal_mirror(java_class); if (graal_mirror != NULL) { assert(graal_mirror->is_a(HotSpotResolvedObjectType::klass()), "unexpected class..."); return graal_mirror; } Handle simpleName = name; if (klass->oop_is_instance()) { ResourceMark rm; InstanceKlass* ik = (InstanceKlass*) klass(); name = java_lang_String::create_from_str(ik->signature_name(), CHECK_NULL); } // TODO replace this with the correct value bool hasFinalizableSubclass = false; int sizeOrSpecies; if (klass->is_interface()) { sizeOrSpecies = (int) 0x80000000; // see HotSpotResolvedObjectType.INTERFACE_SPECIES_VALUE } else if (klass->oop_is_array()) { sizeOrSpecies = (int) 0x7fffffff; // see HotSpotResolvedObjectType.ARRAY_SPECIES_VALUE } else { sizeOrSpecies = InstanceKlass::cast(klass())->size_helper() * HeapWordSize; if (!InstanceKlass::cast(klass())->can_be_fastpath_allocated()) { sizeOrSpecies = -sizeOrSpecies; } } return VMToCompiler::createResolvedJavaType(klass(), name, simpleName, java_class, hasFinalizableSubclass, sizeOrSpecies, CHECK_NULL); } BasicType GraalCompiler::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 'j': 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 Kind: %c", ch)); break; } return T_ILLEGAL; }