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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-10-02 11:35:25 -07:00
parent 3f9edad676
commit e9eab22e5c
1186 changed files with 381859 additions and 0 deletions
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lib/fingerprints.h Normal file
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/*++
Copyright (c) 2006 Microsoft Corporation
Module Name:
fingerprints.h
Abstract:
<abstract>
Author:
Leonardo de Moura (leonardo) 2007-02-24.
Revision History:
--*/
#ifndef _FINGERPRINTS_H_
#define _FINGERPRINTS_H_
#include"smt_enode.h"
namespace smt {
class fingerprint {
protected:
void * m_data;
unsigned m_data_hash;
unsigned m_num_args;
enode * * m_args;
friend class fingerprint_set;
fingerprint() {}
public:
fingerprint(region & r, void * d, unsigned d_hash, unsigned n, enode * const * args);
void * get_data() const { return m_data; }
unsigned get_data_hash() const { return m_data_hash; }
unsigned get_num_args() const { return m_num_args; }
enode * const * get_args() const { return m_args; }
enode * get_arg(unsigned idx) const { SASSERT(idx < m_num_args); return m_args[idx]; }
};
class fingerprint_set {
struct fingerprint_khasher {
unsigned operator()(fingerprint const * f) const { return f->get_data_hash(); }
};
struct fingerprint_chasher {
unsigned operator()(fingerprint const * f, unsigned idx) const { return f->get_arg(idx)->hash(); }
};
struct fingerprint_hash_proc {
unsigned operator()(fingerprint const * f) const {
return get_composite_hash<fingerprint *, fingerprint_khasher, fingerprint_chasher>(const_cast<fingerprint*>(f), f->get_num_args());
}
};
struct fingerprint_eq_proc { bool operator()(fingerprint const * f1, fingerprint const * f2) const; };
typedef ptr_hashtable<fingerprint, fingerprint_hash_proc, fingerprint_eq_proc> set;
region & m_region;
set m_set;
ptr_vector<fingerprint> m_fingerprints;
unsigned_vector m_scopes;
ptr_vector<enode> m_tmp;
fingerprint m_dummy;
fingerprint * mk_dummy(void * data, unsigned data_hash, unsigned num_args, enode * const * args);
public:
fingerprint_set(region & r):m_region(r) {}
fingerprint * insert(void * data, unsigned data_hash, unsigned num_args, enode * const * args);
unsigned size() const { return m_fingerprints.size(); }
bool contains(void * data, unsigned data_hash, unsigned num_args, enode * const * args);
void reset();
void push_scope();
void pop_scope(unsigned num_scopes);
void display(std::ostream & out) const;
#ifdef Z3DEBUG
bool slow_contains(void const * data, unsigned data_hash, unsigned num_args, enode * const * args) const;
#endif
};
};
#endif /* _FINGERPRINTS_H_ */