blob: ca747e6bc7cbce8ee3fdecbf6a1aad0584540e0e [file] [log] [blame]
/*
* 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 "oops/oop.inline.hpp"
#include "runtime/javaCalls.hpp"
#include "runtime/handles.hpp"
#include "jvmci/jvmciJavaClasses.hpp"
#include "jvmci/jvmciCompiler.hpp"
#include "jvmci/jvmciEnv.hpp"
#include "jvmci/jvmciRuntime.hpp"
#include "runtime/compilationPolicy.hpp"
#include "runtime/globals_extension.hpp"
JVMCICompiler* JVMCICompiler::_instance = NULL;
elapsedTimer JVMCICompiler::_codeInstallTimer;
JVMCICompiler::JVMCICompiler() : AbstractCompiler(jvmci) {
_bootstrapping = false;
_methodsCompiled = 0;
assert(_instance == NULL, "only one instance allowed");
_instance = this;
}
// Initialization
void JVMCICompiler::initialize() {
if (!UseCompiler || !EnableJVMCI || !UseJVMCICompiler || !should_perform_init()) {
return;
}
set_state(initialized);
// JVMCI is considered as application code so we need to
// stop the VM deferring compilation now.
CompilationPolicy::completed_vm_startup();
}
void JVMCICompiler::bootstrap() {
#ifndef PRODUCT
// We turn off CompileTheWorld so that compilation requests are not
// ignored during bootstrap or that JVMCI can be compiled by C1/C2.
FlagSetting ctwOff(CompileTheWorld, false);
#endif
JavaThread* THREAD = JavaThread::current();
_bootstrapping = true;
ResourceMark rm;
HandleMark hm;
if (PrintBootstrap) {
tty->print("Bootstrapping JVMCI");
}
jlong start = os::javaTimeMillis();
Array<Method*>* objectMethods = InstanceKlass::cast(SystemDictionary::Object_klass())->methods();
// Initialize compile queue with a selected set of methods.
int len = objectMethods->length();
for (int i = 0; i < len; i++) {
methodHandle mh = objectMethods->at(i);
if (!mh->is_native() && !mh->is_static() && !mh->is_initializer()) {
ResourceMark rm;
int hot_count = 10; // TODO: what's the appropriate value?
CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, "bootstrap", THREAD);
}
}
int qsize;
bool first_round = true;
int z = 0;
do {
// Loop until there is something in the queue.
do {
os::sleep(THREAD, 100, true);
qsize = CompileBroker::queue_size(CompLevel_full_optimization);
} while (first_round && qsize == 0);
first_round = false;
if (PrintBootstrap) {
while (z < (_methodsCompiled / 100)) {
++z;
tty->print_raw(".");
}
}
} while (qsize != 0);
if (PrintBootstrap) {
tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methodsCompiled);
}
_bootstrapping = false;
}
void JVMCICompiler::compile_method(methodHandle method, int entry_bci, JVMCIEnv* env) {
JVMCI_EXCEPTION_CONTEXT
bool is_osr = entry_bci != InvocationEntryBci;
if (_bootstrapping && is_osr) {
// no OSR compilations during bootstrap - the compiler is just too slow at this point,
// and we know that there are no endless loops
return;
}
JVMCIRuntime::initialize_well_known_classes(CHECK_ABORT);
HandleMark hm;
ResourceMark rm;
Handle receiver = JVMCIRuntime::get_HotSpotJVMCIRuntime(CHECK_ABORT);
JavaValue method_result(T_OBJECT);
{
JavaCallArguments args;
args.push_long((jlong) (address) method());
JavaCalls::call_static(&method_result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_ABORT);
}
JavaValue result(T_VOID);
JavaCallArguments args;
args.push_oop(receiver);
args.push_oop((oop)method_result.get_jobject());
args.push_int(entry_bci);
args.push_long((jlong) (address) env);
args.push_int(env->task()->compile_id());
JavaCalls::call_special(&result, receiver->klass(), vmSymbols::compileMethod_name(), vmSymbols::compileMethod_signature(), &args, CHECK_ABORT);
_methodsCompiled++;
}
// Compilation entry point for methods
void JVMCICompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
ShouldNotReachHere();
}
// Print compilation timers and statistics
void JVMCICompiler::print_timers() {
print_compilation_timers();
}
// Print compilation timers and statistics
void JVMCICompiler::print_compilation_timers() {
TRACE_jvmci_1("JVMCICompiler::print_timers");
tty->print_cr(" JVMCI code install time: %6.3f s", _codeInstallTimer.seconds());
}