source: src/Common/DeclStats.cpp@ e874605

ADT ast-experimental
Last change on this file since e874605 was 68fe946e, checked in by Andrew Beach <ajbeach@…>, 4 years ago

Updated DeclStats for the new ast. Also fixed a bug in the old implementation (apparently it hasn't been used since gcc-builtins were added).
  • Property mode set to 100644
File size: 21.4 KB
Line 
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// DeclStats.cpp -- Print statistics about a translation unit's declarations.
8//
9// Author : Andrew Beach
10// Created On : Fri Oct 1 14:26:00 2021
11// Last Modified By : Andrew Beach
12// Last Modified On : Wed Oct 8 11:24:00 2021
13// Update Count : 0
14//
15
16#include "DeclStats.hpp"
17
18#include "AST/LinkageSpec.hpp"
19#include "AST/Pass.hpp"
20#include "AST/Print.hpp"
21#include "Common/VectorMap.h"
22
23#include <iostream>
24#include <map>
25#include <unordered_map>
26#include <unordered_set>
27
28// Everything but printDeclStats at the bottom is hidden.
29namespace {
30
31template<typename T>
32void sum( T & l, const T & r ) { l += r; }
33
34void sum( VectorMap<unsigned> & l, const VectorMap<unsigned> & r ) {
35 l.reserve( r.size() );
36 for ( unsigned i = 0 ; i < r.size() ; ++i ) {
37 l[i] += r[i];
38 }
39}
40
41template<typename KeyT>
42void sum( std::map<KeyT, unsigned> & l, const std::map<KeyT, unsigned> & r ) {
43 for ( const auto & entry : r ) {
44 l[ entry.first ] += entry.second;
45 }
46}
47
48template<typename KeyT>
49void sum( std::unordered_map<KeyT, unsigned> & l,
50 const std::unordered_map<KeyT, unsigned> & r ) {
51 for ( const auto & entry : r ) {
52 l[ entry.first ] += entry.second;
53 }
54}
55
56/// Stores statistics on a single group of arguments or return values.
57struct ArgPackStats {
58 /// Count of decls with each number of elements.
59 VectorMap<unsigned> n;
60 /// Count of decls with each number of basic type elements.
61 VectorMap<unsigned> n_basic;
62 /// Count of decls with each number of generic type elements.
63 VectorMap<unsigned> n_generic;
64 /// Count of decls with each number of polymorphic elements.
65 VectorMap<unsigned> n_poly;
66 /// Count of decls with each number of non-generic compound types.
67 VectorMap<unsigned> n_compound;
68 /// Count of decls with each percentage of basic type elements.
69 std::map<unsigned, unsigned> p_basic;
70 /// Count of decls with each percentage of generic type elements.
71 std::map<unsigned, unsigned> p_generic;
72 /// Count of decls with each percentage of polymorphic elements.
73 std::map<unsigned, unsigned> p_poly;
74 /// Count of decls with each percentage of non-generic compound type elements.
75 std::map<unsigned, unsigned> p_compound;
76 /// Count of decls with each number of distinct types in the pack.
77 VectorMap<unsigned> n_types;
78 /// Count of decls with each percentage of new types in lists.
79 /// Types used in the parameter list that recur in the return list are not considered to be new.
80 std::map<unsigned, unsigned> p_new;
81
82 ArgPackStats& operator+=( const ArgPackStats& other ) {
83 sum(n, other.n);
84 sum(n_basic, other.n_basic);
85 sum(n_generic, other.n_generic);
86 sum(n_poly, other.n_poly);
87 sum(n_compound, other.n_compound);
88 sum(p_basic, other.p_basic);
89 sum(p_generic, other.p_generic);
90 sum(p_poly, other.p_poly);
91 sum(p_compound, other.p_compound);
92 sum(n_types, other.n_types);
93 sum(p_new, other.p_new);
94
95 return *this;
96 }
97};
98
99/// Collected statistics on a group of declarations.
100struct Stats {
101 /// Total number of declarations in these statistics.
102 unsigned n_decls;
103 /// Count of declarations with each number of assertion parameters.
104 VectorMap<unsigned> n_type_params;
105 /// Count of generic types with each number of type parameters.
106 VectorMap<unsigned> n_generic_params;
107 /// Count of maximum nesting depth of types.
108 VectorMap<unsigned> n_generic_nesting;
109 /// Count of declarations with each name.
110 std::unordered_map<std::string, unsigned> by_name;
111 /// Count of uses of each basic type.
112 std::unordered_map<std::string, unsigned> basic_type_names;
113 /// Count of uses of each generic type name (includes "*", "[]", "(*)", "[,]").
114 std::unordered_map<std::string, unsigned> generic_type_names;
115 /// Count of uses of each non-generic aggregate type.
116 std::unordered_map<std::string, unsigned> compound_type_names;
117 /// Count of decls using each basic type.
118 std::unordered_map<std::string, unsigned> basic_type_decls;
119 /// Count of decls using each generic type (includes "*", "[]", "(*)", "[,]").
120 std::unordered_map<std::string, unsigned> generic_type_decls;
121 /// Count of decls using each compound type.
122 std::unordered_map<std::string, unsigned> compound_type_decls;
123 /// Stats for the parameter lists.
124 ArgPackStats params;
125 /// Stats for the return lists.
126 ArgPackStats returns;
127
128 /// Count of declarations with each number of assertions.
129 std::map<unsigned, unsigned> n_assns;
130 /// Stats for the assertions' parameters.
131 ArgPackStats assn_params;
132 /// Stats for the assertions' return types.
133 ArgPackStats assn_returns;
134
135 Stats& operator+=( const Stats& other ) {
136 sum( n_decls, other.n_decls );
137 sum( n_type_params, other.n_type_params );
138 sum( n_generic_params, other.n_generic_params );
139 sum( n_generic_nesting, other.n_generic_nesting );
140 sum( by_name, other.by_name );
141 sum( basic_type_names, other.basic_type_names );
142 sum( generic_type_names, other.generic_type_names );
143 sum( compound_type_names, other.compound_type_names );
144 sum( basic_type_decls, other.basic_type_decls );
145 sum( generic_type_decls, other.generic_type_decls );
146 sum( compound_type_decls, other.compound_type_decls );
147 sum( params, other.params );
148 sum( returns, other.returns );
149 sum( n_assns, other.n_assns );
150 sum( assn_params, other.assn_params );
151 sum( assn_returns, other.assn_returns );
152
153 return *this;
154 }
155
156};
157
158void update_max( unsigned & max, unsigned value ) {
159 if ( max < value ) max = value;
160}
161
162// Where all unnamed specs are counted as one named spec group.
163constexpr unsigned num_named_specs = 8;
164
165unsigned linkage_index( ast::Linkage::Spec spec ) {
166 switch ( spec.val ) {
167 case ast::Linkage::Intrinsic.val: return 0;
168 case ast::Linkage::C.val: return 1;
169 case ast::Linkage::Cforall.val: return 2;
170 case ast::Linkage::AutoGen.val: return 3;
171 case ast::Linkage::Compiler.val: return 4;
172 case ast::Linkage::BuiltinCFA.val: return 5;
173 case ast::Linkage::BuiltinC.val: return 6;
174 default: return 7;
175 }
176}
177
178struct DeclStats : public ast::WithShortCircuiting {
179 /// Stores separate stats per linkage.
180 Stats by_linkage[num_named_specs];
181 /// Stores manglenames already seen to avoid double-counting.
182 std::unordered_set<std::string> seen_names;
183 /// Overall stats.
184 Stats total;
185 /// Count of expressions with (depth, fanout)
186 std::map<std::pair<unsigned, unsigned>, unsigned> exprs_by_fanout_at_depth;
187
188 /// Count that we have seen a named type.
189 void countType(
190 const std::string & name, unsigned & n,
191 std::unordered_map<std::string, unsigned> & names,
192 std::unordered_map<std::string, unsigned> & decls,
193 std::unordered_set<std::string> & elSeen ) {
194 ++n;
195 ++names[ name ];
196 if ( elSeen.insert( name ).second ) {
197 ++decls[ name ];
198 }
199 }
200
201 /// Perform type analysis on a subtype.
202 void analyzeSubtype( const ast::Type * type, Stats & stats,
203 std::unordered_set<std::string> & elSeen, unsigned & n_poly,
204 bool & seen_poly, unsigned & max_depth, unsigned depth ) {
205 // This kind of gets in the way of grouping arguments.
206 unsigned ignored = 0;
207 analyzeType(
208 type, stats, elSeen, ignored, ignored, n_poly, ignored,
209 seen_poly, max_depth, depth + 1 );
210 }
211
212 /// Perform type analysis on each subtype.
213 void analyzeSubtypes(
214 const std::vector<ast::ptr<ast::Type>> & types, Stats & stats,
215 std::unordered_set<std::string> & elSeen, unsigned & n_poly,
216 bool & seen_poly, unsigned & max_depth, unsigned depth ) {
217 for ( const auto & type : types ) {
218 analyzeSubtype( type, stats, elSeen, n_poly, seen_poly, max_depth, depth );
219 }
220 }
221
222 /// Perform sub-type analysis on each subtype in an argument pack.
223 void analyzeSubPack(
224 const std::vector<ast::ptr<ast::Type>> & types, Stats & stats,
225 std::unordered_set<std::string> & elSeen, unsigned & n_poly,
226 bool & seen_poly, unsigned & max_depth, unsigned depth,
227 unsigned & n_subs ) {
228 // ... and count voids?
229 for ( const auto & type : types ) {
230 if ( type.as<ast::VoidType>() ) {
231 ++n_subs;
232 }
233 // Could this be in `else`?
234 analyzeSubtype( type, stats, elSeen, n_poly, seen_poly, max_depth, depth );
235 }
236 }
237
238 /// Analyze and gather stats from a single type.
239 void analyzeType( const ast::ptr<ast::Type> & type, Stats & stats,
240 std::unordered_set<std::string> & elSeen,
241 unsigned & n_basic, unsigned & n_generic, unsigned & n_poly,
242 unsigned & n_agg, bool & seen_poly,
243 unsigned & max_depth, unsigned depth ) {
244 // Almost a visit, except it is only types.
245 if ( const ast::BasicType * t = type.as<ast::BasicType>() ) {
246 const std::string name = ast::BasicType::typeNames[ t->kind ];
247 countType( name, n_basic, stats.basic_type_names, stats.basic_type_decls, elSeen );
248 update_max( max_depth, depth );
249 } else if ( auto t = type.as<ast::PointerType>() ) {
250 static const std::string name = "*";
251 countType( name, n_generic, stats.generic_type_names, stats.generic_type_decls, elSeen );
252 analyzeSubtype( t->base, stats, elSeen, n_poly, seen_poly, max_depth, depth );
253 ++stats.n_generic_params.at( 1 );
254 } else if ( auto t = type.as<ast::ArrayType>() ) {
255 static const std::string name = "[]";
256 countType( name, n_generic, stats.generic_type_names, stats.generic_type_decls, elSeen );
257 analyzeSubtype( t->base, stats, elSeen, n_poly, seen_poly, max_depth, depth );
258 ++stats.n_generic_params.at( 1 );
259 } else if ( auto t = type.as<ast::ReferenceType>() ) {
260 static const std::string name = "&";
261 countType( name, n_generic, stats.generic_type_names, stats.generic_type_decls, elSeen );
262 analyzeSubtype( t->base, stats, elSeen, n_poly, seen_poly, max_depth, depth );
263 ++stats.n_generic_params.at( 1 );
264 } else if ( auto t = type.as<ast::FunctionType>() ) {
265 static const std::string name = "(*)";
266 countType( name, n_generic, stats.generic_type_names, stats.generic_type_decls, elSeen );
267 unsigned n_subs = 0;
268 analyzeSubPack( t->returns, stats, elSeen, n_poly, seen_poly, max_depth, depth, n_subs );
269 analyzeSubPack( t->params, stats, elSeen, n_poly, seen_poly, max_depth, depth, n_subs );
270 ++stats.n_generic_params.at( n_subs );
271 } else if ( auto t = type.as<ast::TypeInstType>() ) {
272 if ( !seen_poly ) {
273 ++n_poly;
274 seen_poly = true;
275 }
276 countType( t->name, n_agg, stats.compound_type_names,
277 stats.compound_type_decls, elSeen );
278 update_max( max_depth, depth );
279 } else if ( auto t = type.as<ast::BaseInstType>() ) {
280 auto & params = t->params;
281 if ( params.empty() ) {
282 countType( t->name, n_agg, stats.compound_type_names,
283 stats.compound_type_decls, elSeen );
284 update_max( max_depth, depth );
285 } else {
286 countType( t->name, n_generic, stats.generic_type_names,
287 stats.generic_type_decls, elSeen );
288 ++stats.n_generic_params.at( params.size() );
289 }
290 } else if ( auto t = type.as<ast::TupleType>() ) {
291 static const std::string name = "[,]";
292 countType( name, n_generic, stats.generic_type_names, stats.generic_type_decls, elSeen);
293 analyzeSubtypes( t->types, stats, elSeen, n_poly, seen_poly, max_depth, depth );
294 ++stats.n_generic_params.at( t->size() );
295 } else if ( type.as<ast::VarArgsType>() ) {
296 static const std::string name = "...";
297 countType( name, n_agg, stats.compound_type_names, stats.compound_type_decls, elSeen );
298 update_max( max_depth, depth );
299 } else if ( type.as<ast::ZeroType>() ) {
300 static const std::string name = "0";
301 countType( name, n_basic, stats.basic_type_names, stats.basic_type_decls, elSeen );
302 update_max( max_depth, depth );
303 } else if ( type.as<ast::OneType>() ) {
304 static const std::string name = "1";
305 countType( name, n_basic, stats.basic_type_names, stats.basic_type_decls, elSeen );
306 update_max( max_depth, depth );
307 }
308 }
309
310 /// Update an ArgPackStats based on the list of types it repersents.
311 void analyzeArgPack(
312 const std::vector<ast::ptr<ast::Type>> & types,
313 Stats & stats,
314 ArgPackStats & packStats,
315 // What are these two used for?
316 std::unordered_set<std::string> & seen,
317 std::unordered_set<std::string> & elSeen ) {
318 std::unordered_set<std::string> type_names;
319 unsigned n = 0;
320 unsigned n_basic = 0;
321 unsigned n_generic = 0;
322 unsigned n_poly = 0;
323 unsigned n_compound = 0;
324 unsigned n_new = 0;
325
326 for ( auto & type : types ) {
327 n += type->size();
328
329 std::stringstream ss;
330 ast::print( ss, type );
331 type_names.insert( ss.str() );
332 if ( seen.insert( ss.str() ).second ) {
333 ++n_new;
334 }
335
336 bool seen_poly = false;
337 unsigned max_depth = 0;
338 analyzeType(
339 type, stats, elSeen, n_basic, n_generic, n_poly, n_compound,
340 seen_poly, max_depth, 0
341 );
342 ++stats.n_generic_nesting.at( max_depth );
343 }
344
345 ++packStats.n.at( n );
346 ++packStats.n_basic.at( n_basic );
347 ++packStats.n_generic.at( n_generic );
348 ++packStats.n_poly.at( n_poly );
349 ++packStats.n_compound.at( n_compound );
350 if ( n > 0 ) {
351 ++packStats.p_basic[ n_basic * 100 / n ];
352 ++packStats.p_generic[ n_generic * 100 / n ];
353 ++packStats.p_poly[ n_poly * 100 / n ];
354 ++packStats.p_compound[ n_compound * 100 / n ];
355 if ( n > 1 ) {
356 ++packStats.p_new[ (n_new - 1) * 100 / (n - 1) ];
357 }
358 }
359 ++packStats.n_types.at( types.size() );
360 }
361
362 /// Perform type analysis on a function type, storing information in the
363 /// given ArgPackStats.
364 void analyzeFunctionType( const ast::FunctionType * type, Stats& stats,
365 ArgPackStats Stats::* param_pack,
366 ArgPackStats Stats::* return_pack ) {
367 // I still don't know what these are for.
368 std::unordered_set<std::string> seen;
369 std::unordered_set<std::string> elSeen;
370 analyzeArgPack( type->params, stats, stats.*param_pack, seen, elSeen );
371 analyzeArgPack( type->returns, stats, stats.*return_pack, seen, elSeen );
372 }
373
374 /// If the assertion is a function, return the function type.
375 static const ast::FunctionType * getAssertionFunctionType(
376 const ast::ptr<ast::DeclWithType> & assertion ) {
377 if ( auto * assertionObject = assertion.as<ast::ObjectDecl>() ) {
378 if ( auto * ptrTy = assertionObject->type.as<ast::PointerType>() ) {
379 return ptrTy->base.as<ast::FunctionType>();
380 } else {
381 return assertionObject->type.as<ast::FunctionType>();
382 }
383 } else if ( auto * assertionDecl = assertion.as<ast::FunctionDecl>() ) {
384 return assertionDecl->type;
385 }
386 return nullptr;
387 }
388
389 void analyzeFunctionDecl( const ast::FunctionDecl * decl ) {
390 Stats & stats = by_linkage[ linkage_index( decl->linkage ) ];
391
392 ++stats.n_decls;
393 const ast::FunctionType * type = decl->type.get();
394 const ast::FunctionType::ForallList & forall = type->forall;
395 ++stats.n_type_params.at( forall.size() );
396 unsigned num_assertions = 0;
397 for ( const ast::ptr<ast::TypeInstType> & instType : forall ) {
398 num_assertions += instType->base->assertions.size();
399 for ( const auto & assertion : instType->base->assertions ) {
400 if ( auto assertionType = getAssertionFunctionType( assertion ) ) {
401 analyzeFunctionType( assertionType, stats,
402 &Stats::assn_params, &Stats::assn_returns );
403 }
404 }
405 }
406 ++stats.n_assns[ num_assertions ];
407 ++stats.by_name[ decl->name ];
408 analyzeFunctionType( type, stats, &Stats::params, &Stats::returns );
409 }
410
411 void analyzeUntypedExpr( const ast::UntypedExpr * expr, unsigned depth ) {
412 unsigned fanout = expr->args.size();
413 ++exprs_by_fanout_at_depth[ std::make_pair( depth, fanout ) ];
414
415 for ( const ast::ptr<ast::Expr> & arg : expr->args ) {
416 if ( const auto * untyped = arg.as<ast::UntypedExpr>() ) {
417 analyzeUntypedExpr( untyped, depth + 1 );
418 }
419 }
420 }
421
422public:
423 void previsit( const ast::UntypedExpr * expr ) {
424 visit_children = false;
425 analyzeUntypedExpr( expr, 0 );
426 }
427
428 void previsit( const ast::FunctionDecl * decl ) {
429 const std::string & mangleName = decl->mangleName;
430 const std::string & indexName = mangleName.empty() ? decl->name : mangleName;
431 if ( seen_names.insert( indexName ).second ) {
432 analyzeFunctionDecl( decl );
433 }
434 }
435
436private:
437
438 // Trying to avoid duplication by templates.
439 // I couldn't do it in all cases.
440 template<typename T, typename U>
441 using getter = std::function<U(T const &)>;
442
443 /// Print a single role, for every linkage and the totals.
444 void printRow( const std::string & name, getter<Stats, unsigned> extract ) {
445 std::cout << "\"" << name << "\",";
446 for ( const Stats & stats : by_linkage ) {
447 std::cout << "," << extract( stats );
448 }
449 std::cout << "," << extract( total ) << std::endl;
450 }
451
452 /// Print every row in a group of maps.
453 template<typename Func>
454 void printAllMap( const std::string & name, Func && extract ) {
455 // Get all rows from the total stats.
456 for ( auto & entry : extract( total ) ) {
457 auto & key = entry.first;
458 std::cout << "\"" << name << "\"," << key;
459 for ( const auto & stats : by_linkage ) {
460 const auto & map = extract( stats );
461 auto it = map.find( key );
462 if ( map.end() == it ) {
463 std::cout << ",0";
464 } else {
465 std::cout << "," << it->second;
466 }
467 }
468 std::cout << "," << entry.second << std::endl;
469 }
470 }
471
472 /// Accumalate information, then print every row in the remaining maps.
473 template<typename Func>
474 void printAllSparseHisto( const std::string & name, Func && extract ) {
475 std::map<unsigned, unsigned> histos[num_named_specs];
476 std::map<unsigned, unsigned> histo_total;
477
478 // Collect all data into the histograms.
479 for ( const auto & entry : extract( total ) ) {
480 ++histo_total[ entry.second ];
481 }
482
483 for ( unsigned i = 0 ; i < num_named_specs ; ++i ) {
484 for ( const auto & entry : extract( by_linkage[i] ) ) {
485 ++histos[ i ][ entry.second ];
486 }
487 }
488
489 // Get all rows from the total stats.
490 for ( const auto & entry : histo_total ) {
491 const unsigned & key = entry.first;
492 std::cout << "\"" << name << "\"," << key;
493 for ( unsigned i = 0 ; i < num_named_specs ; ++i ) {
494 auto it = histos[i].find( key );
495 if ( histos[i].end() == it ) {
496 std::cout << ",0";
497 } else {
498 std::cout << "," << it->second;
499 }
500 }
501 std::cout << "," << entry.second << std::endl;
502 }
503 }
504
505 void printAllPack( const std::string & name, ArgPackStats Stats::* field ) {
506 printAllMap("n_basic_" + name, [&field](const Stats& stats) { return (stats.*field).n_basic; });
507 printAllMap("n_generic_" + name, [&field](const Stats& stats) { return (stats.*field).n_generic; });
508 printAllMap("n_poly_" + name, [&field](const Stats& stats) { return (stats.*field).n_poly; });
509 printAllMap("n_compound_" + name, [&field](const Stats& stats) { return (stats.*field).n_compound; });
510 printAllMap("n_" + name, [&field](const Stats& stats) { return (stats.*field).n; });
511 printAllMap("%_basic_" + name, [&field](const Stats& stats) { return (stats.*field).p_basic; });
512 printAllMap("%_generic_" + name, [&field](const Stats& stats) { return (stats.*field).p_generic; });
513 printAllMap("%_poly_" + name, [&field](const Stats& stats) { return (stats.*field).p_poly; });
514 printAllMap("%_compound_" + name, [&field](const Stats& stats) { return (stats.*field).p_compound; });
515 printAllMap("n_distinct_types_" + name, [&field](const Stats& stats) { return (stats.*field).n_types; });
516 printAllMap("%_new_types_in_" + name, [&field](const Stats& stats) { return (stats.*field).p_new; });
517 }
518
519 static void printPairMap (
520 const std::string & name,
521 const std::map<std::pair<unsigned, unsigned>, unsigned> & map ) {
522 for ( const auto & entry : map ) {
523 const auto & key = entry.first;
524 std::cout << "\"" << name << "\"," << key.first << ','
525 << key.second << ',' << entry.second << std::endl;
526 }
527 }
528
529public:
530 void print() {
531 for ( auto & stats : by_linkage ) {
532 total += stats;
533 }
534
535 std::cout << ",,\"intrinsic\",\"Cforall\",\"C\",\"autogen\",\"compiler\",\"builtinCFA\",\"builtinC\",\"other\",\"TOTAL\"" << std::endl;
536
537 printAllMap("n_type_params", [](const Stats& stats) { return stats.n_type_params; });
538 printAllMap("n_generic_params", [](const Stats& stats) { return stats.n_generic_params; });
539 printAllMap("n_generic_nesting", [](const Stats& stats) { return stats.n_generic_nesting; });
540 printRow("n_decls", [](const Stats& stats) { return stats.n_decls; });
541 printRow("unique_names", [](const Stats& stats) { return stats.by_name.size(); });
542 printAllSparseHisto("overloads", [](const Stats& stats) { return stats.by_name; });
543 printRow("basic_type_names", [](const Stats& stats) { return stats.basic_type_names.size(); });
544 printAllSparseHisto("basic_type_uses", [](const Stats& stats) { return stats.basic_type_names; });
545 printAllSparseHisto("decls_using_basic_type", [](const Stats& stats) { return stats.basic_type_decls; });
546 printRow("generic_type_names", [](const Stats& stats) { return stats.generic_type_names.size(); });
547 printAllSparseHisto("generic_type_uses", [](const Stats& stats) { return stats.generic_type_names; });
548 printAllSparseHisto("decls_using_generic_type", [](const Stats& stats) { return stats.generic_type_decls; });
549 printRow("compound_type_names", [](const Stats& stats) { return stats.compound_type_names.size(); });
550 printAllSparseHisto("compound_type_uses", [](const Stats& stats) { return stats.compound_type_names; });
551 printAllSparseHisto("decls_using_compound_type", [](const Stats& stats) { return stats.compound_type_decls; });
552 printAllPack("params", &Stats::params);
553 printAllPack("returns", &Stats::returns);
554 printAllMap("n_assns", [](const Stats& stats) { return stats.n_assns; });
555 printAllPack("assn_params", &Stats::assn_params);
556 printAllPack("assn_returns", &Stats::assn_returns);
557 std::cout << std::endl;
558
559 printPairMap( "exprs by depth+fanout", exprs_by_fanout_at_depth );
560 }
561};
562
563} // namespace
564
565void printDeclStats( ast::TranslationUnit & translationUnit ) {
566 ast::Pass<DeclStats> stats;
567 accept_all( translationUnit, stats );
568 stats.core.print();
569}
570
571// Local Variables: //
572// tab-width: 4 //
573// mode: c++ //
574// compile-command: "make install" //
575// End: //
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