Mercurial > hg > graal-compiler
view src/share/vm/c1/c1_ValueSet.hpp @ 124:b130b98db9cf
6689060: Escape Analysis does not work with Compressed Oops
Summary: 64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops)
Reviewed-by: never, sgoldman
author | kvn |
---|---|
date | Wed, 23 Apr 2008 11:20:36 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001-2005 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. * */ // A ValueSet is a simple abstraction on top of a BitMap representing // a set of Instructions. Currently it assumes that the number of // instructions is fixed during its lifetime; should make it // automatically resizable. class ValueSet: public CompilationResourceObj { private: BitMap _map; public: ValueSet(); ValueSet* copy(); bool contains(Value x); void put (Value x); void remove (Value x); bool set_intersect(ValueSet* other); void set_union(ValueSet* other); void clear (); void set_from(ValueSet* other); bool equals (ValueSet* other); }; inline ValueSet::ValueSet() : _map(Instruction::number_of_instructions()) { _map.clear(); } inline ValueSet* ValueSet::copy() { ValueSet* res = new ValueSet(); res->_map.set_from(_map); return res; } inline bool ValueSet::contains(Value x) { return _map.at(x->id()); } inline void ValueSet::put(Value x) { _map.set_bit(x->id()); } inline void ValueSet::remove(Value x) { _map.clear_bit(x->id()); } inline bool ValueSet::set_intersect(ValueSet* other) { return _map.set_intersection_with_result(other->_map); } inline void ValueSet::set_union(ValueSet* other) { _map.set_union(other->_map); } inline void ValueSet::clear() { _map.clear(); } inline void ValueSet::set_from(ValueSet* other) { _map.set_from(other->_map); } inline bool ValueSet::equals(ValueSet* other) { return _map.is_same(other->_map); }