Mercurial > hg > graal-compiler
view src/share/vm/compiler/abstractCompiler.cpp @ 7949:5daaddd917a1
8006040: NPG: on_stack processing wastes space in ConstantPool
Summary: Added on_stack bit to flags. Also MetadataMarkOnStack is used for more than JVMTI so had to be moved.
Reviewed-by: dholmes, stefank
author | coleenp |
---|---|
date | Wed, 23 Jan 2013 10:34:29 -0500 |
parents | 68c5a4e8881d |
children | 469216acdb28 |
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// // Copyright (c) 2007, 2010, 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 "compiler/abstractCompiler.hpp" #include "runtime/mutexLocker.hpp" void AbstractCompiler::initialize_runtimes(initializer f, volatile int* state) { if (*state != initialized) { // We are thread in native here... CompilerThread* thread = CompilerThread::current(); bool do_initialization = false; { ThreadInVMfromNative tv(thread); ResetNoHandleMark rnhm; MutexLocker only_one(CompileThread_lock, thread); if ( *state == uninitialized) { do_initialization = true; *state = initializing; } else { while (*state == initializing ) { CompileThread_lock->wait(); } } } if (do_initialization) { // We can not hold any locks here since JVMTI events may call agents // Compiler(s) run as native (*f)(); // To in_vm so we can use the lock ThreadInVMfromNative tv(thread); ResetNoHandleMark rnhm; MutexLocker only_one(CompileThread_lock, thread); assert(*state == initializing, "wrong state"); *state = initialized; CompileThread_lock->notify_all(); } } }