Mercurial > hg > graal-compiler
view src/share/vm/ci/ciSymbolKlass.hpp @ 900:9987d9d5eb0e
6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
Summary: developed a reexecute logic for the interpreter to reexecute the bytecode when deopt happens
Reviewed-by: kvn, never, jrose, twisti
author | cfang |
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date | Fri, 31 Jul 2009 17:12:33 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 1999-2001 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. * */ // ciSymbolKlass // // This class represents a klassOop in the HotSpot virtual machine // whose Klass part in a symbolKlass. Although, in the VM // Klass hierarchy, symbolKlass is a direct subclass of typeArrayKlass, // we do not model this relationship in the ciObject hierarchy -- the // subclassing is used to share implementation and is not of note // to compiler writers. class ciSymbolKlass : public ciKlass { CI_PACKAGE_ACCESS protected: ciSymbolKlass(KlassHandle h_k) : ciKlass(h_k, ciSymbol::make("unique_symbolKlass")) { assert(get_Klass()->oop_is_symbol(), "wrong type"); } symbolKlass* get_symbolKlass() { return (symbolKlass*)get_Klass(); } const char* type_string() { return "ciSymbolKlass"; } public: // What kind of ciObject is this? bool is_symbol_klass() { return true; } // Return the distinguished ciSymbolKlass instance. static ciSymbolKlass* make(); };