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author | Nathan Binkert <nate@binkert.org> | 2009-05-11 10:38:43 -0700 |
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committer | Nathan Binkert <nate@binkert.org> | 2009-05-11 10:38:43 -0700 |
commit | 2f30950143cc70bc42a3c8a4111d7cf8198ec881 (patch) | |
tree | 708f6c22edb3c6feb31dd82866c26623a5329580 /src/mem/ruby/common/OptBigSet.hh | |
parent | c70241810d4e4f523f173c1646b008dc40faad8e (diff) | |
download | gem5-2f30950143cc70bc42a3c8a4111d7cf8198ec881.tar.xz |
ruby: Import ruby and slicc from GEMS
We eventually plan to replace the m5 cache hierarchy with the GEMS
hierarchy, but for now we will make both live alongside eachother.
Diffstat (limited to 'src/mem/ruby/common/OptBigSet.hh')
-rw-r--r-- | src/mem/ruby/common/OptBigSet.hh | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/mem/ruby/common/OptBigSet.hh b/src/mem/ruby/common/OptBigSet.hh new file mode 100644 index 000000000..a57a07e13 --- /dev/null +++ b/src/mem/ruby/common/OptBigSet.hh @@ -0,0 +1,202 @@ + +/* + * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Set.h + * + * Description: + * + * $Id: BigSet.h 1.6 05/01/19 13:12:25-06:00 mikem@maya.cs.wisc.edu $ + * + */ + +// modified by Dan Gibson on 05/20/05 to accomidate FASTER +// >32 set lengths, using an array of ints w/ 32 bits/int + +// NOTE: Never include this file directly, this should only be +// included from Set.h + +#ifndef SET_H +#define SET_H + +#include "Global.hh" +#include "Vector.hh" +#include "NodeID.hh" +#include "RubyConfig.hh" + +// gibson 05/20/05 +// enum PresenceBit {NotPresent, Present}; + +class Set { +public: + // Constructors + // creates and empty set + Set(); + Set (int size); + + // used during the replay mechanism + // Set(const char *str); + + Set(const Set& obj); + Set& operator=(const Set& obj); + + // Destructor + ~Set(); + + // Public Methods + + inline void add(NodeID index) + { +#ifdef __32BITS__ + m_p_nArray[index>>5] |= (1 << (index & 0x01F)); +#else + m_p_nArray[index>>6] |= (((unsigned long) 1) << (index & 0x03F)); +#endif // __32BITS__ + } + + void addSet(const Set& set); + void addRandom(); + + inline void remove(NodeID index) + { +#ifdef __32BITS__ + m_p_nArray[index>>5] &= ~(0x00000001 << (index & 0x01F)); +#else + m_p_nArray[index>>6] &= ~(((unsigned long) 0x0000000000000001) << (index & 0x03F)); +#endif // __32BITS__ + } + + + void removeSet(const Set& set); + + inline void clear() { for(int i=0; i<m_nArrayLen; i++) m_p_nArray[i] = 0; } + + void broadcast(); + int count() const; + bool isEqual(const Set& set) const; + + Set OR(const Set& orSet) const; // return the logical OR of this set and orSet + Set AND(const Set& andSet) const; // return the logical AND of this set and andSet + + // Returns true if the intersection of the two sets is non-empty + inline bool intersectionIsNotEmpty(const Set& other_set) const + { + for(int i=0; i< m_nArrayLen; i++) { + if(m_p_nArray[i] & other_set.m_p_nArray[i]) { + return true; + } + } + return false; + } + + // Returns true if the intersection of the two sets is empty + inline bool intersectionIsEmpty(const Set& other_set) const + { + for(int i=0; i< m_nArrayLen; i++) { + if(m_p_nArray[i] & other_set.m_p_nArray[i]) { + return false; + } + } + return true; + } + + bool isSuperset(const Set& test) const; + bool isSubset(const Set& test) const { return test.isSuperset(*this); } + + inline bool isElement(NodeID element) const + { +#ifdef __32BITS__ + return ((m_p_nArray[element>>5] & (0x00000001 << (element & 0x01F)))!=0); +#else + return ((m_p_nArray[element>>6] & (((unsigned long) 0x0000000000000001) << (element & 0x03F)))!=0); +#endif // __32BITS__ + + } + + bool isBroadcast() const; + bool isEmpty() const; + + NodeID smallestElement() const; + + // int size() const; + void setSize (int size); + + // get element for a index + inline NodeID elementAt(int index) const + { + if(isElement(index)) return (NodeID) true; + else return 0; + } + + // gibson 05/20/05 + int getSize() const { return m_nSize; } + + // DEPRECATED METHODS + void addToSet(NodeID newElement) { add(newElement); } // Deprecated + void removeFromSet(NodeID newElement) { remove(newElement); } // Deprecated + void clearSet() { clear(); } // Deprecated + void setBroadcast() { broadcast(); } // Deprecated + bool presentInSet(NodeID element) const { return isElement(element); } // Deprecated + + void print(ostream& out) const; +private: + // Private Methods + + // Data Members (m_ prefix) + // gibson 05/20/05 + // Vector<uint8> m_bits; // This is an vector of uint8 to reduce the size of the set + + int m_nSize; // the number of bits in this set + int m_nArrayLen; // the number of 32-bit words that are held in the array + + // Changed 5/24/05 for static allocation of array + // note that "long" corresponds to 32 bits on a 32-bit machine, + // 64 bits if the -m64 parameter is passed to g++, which it is + // for an AMD opteron under our configuration + + long * m_p_nArray; // an word array to hold the bits in the set + long m_p_nArray_Static[NUMBER_WORDS_PER_SET]; +}; + +// Output operator declaration +ostream& operator<<(ostream& out, const Set& obj); + +// ******************* Definitions ******************* + +// Output operator definition +extern inline +ostream& operator<<(ostream& out, const Set& obj) +{ + obj.print(out); + out << flush; + return out; +} + +#endif //SET_H + |