Mercurial > hg > truffle
view src/cpu/sparc/vm/interpreterGenerator_sparc.hpp @ 1389:5dbd9300cf9c
6943926: G1: Integer overflow during heap region verification
Summary: The expression that calculates the live bytes for a heap region can overflow for a suitably large humongous region/object. Cache the object size in a suitably sized local variable so that the expression is converted to a wider type.
Reviewed-by: tonyp, jmasa, iveresov, apetrusenko
author | johnc |
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date | Thu, 15 Apr 2010 15:52:55 -0700 |
parents | e5b0439ef4ae |
children | c18cbe5936b8 |
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/* * Copyright 1997-2009 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. * */ friend class AbstractInterpreterGenerator; private: address generate_normal_entry(bool synchronized); address generate_native_entry(bool synchronized); address generate_abstract_entry(void); address generate_method_handle_entry(void); address generate_math_entry(AbstractInterpreter::MethodKind kind); address generate_empty_entry(void); address generate_accessor_entry(void); void lock_method(void); void save_native_result(void); void restore_native_result(void); void generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue); void generate_counter_overflow(Label& Lcontinue);