source: src/ResolvExpr/Cost.h@ 45c43e5

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since 45c43e5 was ddf8a29, checked in by Rob Schluntz <rschlunt@…>, 8 years ago

Refactor computeConversionCost, apply conversions to ConditionalExpr arguments, re-add Werror to libcfa build
  • Property mode set to 100644
File size: 4.3 KB
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1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// Cost.h --
8//
9// Author : Richard C. Bilson
10// Created On : Sun May 17 09:39:50 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Sat Jul 22 09:35:55 2017
13// Update Count : 5
14//
15
16#pragma once
17
18#include <iostream>
19
20namespace ResolvExpr {
21 class Cost {
22 private:
23 Cost( int unsafeCost, int polyCost, int safeCost, int referenceCost );
24
25 public:
26 Cost & incUnsafe( int inc = 1 );
27 Cost & incPoly( int inc = 1 );
28 Cost & incSafe( int inc = 1 );
29 Cost & incReference( int inc = 1 );
30
31 int get_unsafeCost() const { return unsafeCost; }
32 int get_polyCost() const { return polyCost; }
33 int get_safeCost() const { return safeCost; }
34 int get_referenceCost() const { return referenceCost; }
35
36 Cost operator+( const Cost &other ) const;
37 Cost operator-( const Cost &other ) const;
38 Cost &operator+=( const Cost &other );
39 bool operator<( const Cost &other ) const;
40 bool operator==( const Cost &other ) const;
41 bool operator!=( const Cost &other ) const;
42 friend std::ostream &operator<<( std::ostream &os, const Cost &cost );
43
44 static const Cost zero;
45 static const Cost infinity;
46
47 static const Cost unsafe;
48 static const Cost poly;
49 static const Cost safe;
50 static const Cost reference;
51 private:
52 int compare( const Cost &other ) const;
53
54 int unsafeCost;
55 int polyCost;
56 int safeCost;
57 int referenceCost;
58 };
59
60 inline Cost::Cost( int unsafeCost, int polyCost, int safeCost, int referenceCost ) : unsafeCost( unsafeCost ), polyCost( polyCost ), safeCost( safeCost ), referenceCost( referenceCost ) {}
61
62 inline Cost & Cost::incUnsafe( int inc ) {
63 if ( *this == infinity ) return *this;
64 unsafeCost += inc;
65 return *this;
66 }
67
68 inline Cost & Cost::incPoly( int inc ) {
69 if ( *this == infinity ) return *this;
70 polyCost += inc;
71 return *this;
72 }
73
74 inline Cost & Cost::incSafe( int inc ) {
75 if ( *this == infinity ) return *this;
76 safeCost += inc;
77 return *this;
78 }
79
80 inline Cost & Cost::incReference( int inc ) {
81 if ( *this == infinity ) return *this;
82 referenceCost += inc;
83 return *this;
84 }
85
86 inline Cost Cost::operator+( const Cost &other ) const {
87 if ( *this == infinity || other == infinity ) return infinity;
88 return Cost( unsafeCost + other.unsafeCost, polyCost + other.polyCost, safeCost + other.safeCost, referenceCost + other.referenceCost );
89 }
90
91 inline Cost Cost::operator-( const Cost &other ) const {
92 if ( *this == infinity || other == infinity ) return infinity;
93 return Cost( unsafeCost - other.unsafeCost, polyCost - other.polyCost, safeCost - other.safeCost, referenceCost - other.referenceCost );
94 }
95
96 inline Cost &Cost::operator+=( const Cost &other ) {
97 if ( *this == infinity ) return *this;
98 if ( other == infinity ) {
99 *this = infinity;
100 return *this;
101 }
102 unsafeCost += other.unsafeCost;
103 polyCost += other.polyCost;
104 safeCost += other.safeCost;
105 referenceCost += other.referenceCost;
106 return *this;
107 }
108
109 inline bool Cost::operator<( const Cost &other ) const {
110 if ( *this == infinity ) return false;
111 if ( other == infinity ) return true;
112
113 if ( unsafeCost > other.unsafeCost ) {
114 return false;
115 } else if ( unsafeCost < other.unsafeCost ) {
116 return true;
117 } else if ( polyCost > other.polyCost ) {
118 return false;
119 } else if ( polyCost < other.polyCost ) {
120 return true;
121 } else if ( safeCost > other.safeCost ) {
122 return false;
123 } else if ( safeCost < other.safeCost ) {
124 return true;
125 } else if ( referenceCost > other.referenceCost ) {
126 return false;
127 } else if ( referenceCost < other.referenceCost ) {
128 return true;
129 } else {
130 return false;
131 } // if
132 }
133
134 inline bool Cost::operator==( const Cost &other ) const {
135 return unsafeCost == other.unsafeCost
136 && polyCost == other.polyCost
137 && safeCost == other.safeCost
138 && referenceCost == other.referenceCost;
139 }
140
141 inline bool Cost::operator!=( const Cost &other ) const {
142 return !( *this == other );
143 }
144
145 inline std::ostream &operator<<( std::ostream &os, const Cost &cost ) {
146 os << "( " << cost.unsafeCost << ", " << cost.polyCost << ", " << cost.safeCost << ", " << cost.referenceCost << " )";
147 return os;
148 }
149} // namespace ResolvExpr
150
151// Local Variables: //
152// tab-width: 4 //
153// mode: c++ //
154// compile-command: "make install" //
155// End: //
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