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source: src/main.cc @ e71272a

ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum

Last change on this file since e71272a was 3c0d4cd, checked in by tdelisle <tdelisle@…>, 6 years ago
Fixed/implemented % of parent printing in timing sections
Property mode set to `100644`
File size: 20.7 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	// main.cc --
8	//
9	// Author : Richard C. Bilson
10	// Created On : Fri May 15 23:12:02 2015
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Sat Feb 16 09:14:04 2019
13	// Update Count : 500
14	//
15
16	#include <cxxabi.h> // for __cxa_demangle
17	#include <execinfo.h> // for backtrace, backtrace_symbols
18	#include <getopt.h> // for no_argument, optind, geto...
19	#include <signal.h> // for signal, SIGABRT, SIGSEGV
20	#include <cassert> // for assertf
21	#include <cstdio> // for fopen, FILE, fclose, stdin
22	#include <cstdlib> // for exit, free, abort, EXIT_F...
23	#include <cstring> // for index
24	#include <fstream> // for ofstream
25	#include <iostream> // for operator<<, basic_ostream
26	#include <iterator> // for back_inserter
27	#include <list> // for list
28	#include <string> // for char_traits, operator<<
29
30	#include "CompilationState.h"
31	#include "../config.h" // for CFA_LIBDIR
32	#include "CodeGen/FixMain.h" // for FixMain
33	#include "CodeGen/FixNames.h" // for fixNames
34	#include "CodeGen/Generate.h" // for generate
35	#include "CodeTools/DeclStats.h" // for printDeclStats
36	#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
37	#include "CodeTools/TrackLoc.h" // for fillLocations
38	#include "Common/CompilerError.h" // for CompilerError
39	#include "Common/Stats.h"
40	#include "Common/PassVisitor.h"
41	#include "Common/SemanticError.h" // for SemanticError
42	#include "Common/UnimplementedError.h" // for UnimplementedError
43	#include "Common/utility.h" // for deleteAll, filter, printAll
44	#include "Concurrency/Waitfor.h" // for generateWaitfor
45	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
46	#include "ControlStruct/Mutate.h" // for mutate
47	#include "GenPoly/Box.h" // for box
48	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
49	#include "GenPoly/Lvalue.h" // for convertLvalue
50	#include "GenPoly/Specialize.h" // for convertSpecializations
51	#include "InitTweak/FixInit.h" // for fix
52	#include "InitTweak/GenInit.h" // for genInit
53	#include "MakeLibCfa.h" // for makeLibCfa
54	#include "Parser/LinkageSpec.h" // for Spec, Cforall, Intrinsic
55	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
56	#include "Parser/TypedefTable.h" // for TypedefTable
57	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
58	#include "ResolvExpr/Resolver.h" // for resolve
59	#include "SymTab/Validate.h" // for validate
60	#include "SynTree/Declaration.h" // for Declaration
61	#include "SynTree/Visitor.h" // for acceptAll
62	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
63	#include "Virtual/ExpandCasts.h" // for expandCasts
64
65	using namespace std;
66
67
68	void NewPass(const char * const name) {
69	Stats::Heap::newPass(name);
70	using namespace Stats::Counters;
71	static auto pass_visitor_group = build<CounterGroup>("Pass Visitor");
72	auto pass = build<CounterGroup>(name, pass_visitor_group);
73	pass_visitor_stats.depth = 0;
74	pass_visitor_stats.avg = build<AverageCounter<double>>("Average Depth", pass);
75	pass_visitor_stats.max = build<MaxCounter<double>>("Max Depth", pass);
76	}
77
78	#define PASS(name, pass) \
79	if ( errorp ) { cerr << name << endl; } \
80	NewPass(name); \
81	Stats::Time::StartBlock(name); \
82	pass; \
83	Stats::Time::StopBlock();
84
85	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
86	TypedefTable typedefTable;
87	DeclarationNode * parseTree = nullptr; // program parse tree
88
89	std::string PreludeDirector = "";
90
91	static void parse_cmdline( int argc, char argv[], const char & filename );
92	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
93	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
94
95	static void backtrace( int start ) { // skip first N stack frames
96	enum { Frames = 50 };
97	void * array[Frames];
98	int size = ::backtrace( array, Frames );
99	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
100
101	*index( messages[0], '(' ) = '\0'; // find executable name
102	cerr << "Stack back trace for: " << messages[0] << endl;
103
104	// skip last 2 stack frames after main
105	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
106	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
107	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
108	if ( *p == '(' ) {
109	mangled_name = p;
110	} else if ( *p == '+' ) {
111	offset_begin = p;
112	} else if ( *p == ')' ) {
113	offset_end = p;
114	break;
115	} // if
116	} // for
117
118	// if line contains symbol, attempt to demangle
119	int frameNo = i - start;
120	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
121	*mangled_name++ = '\0'; // delimit strings
122	*offset_begin++ = '\0';
123	*offset_end++ = '\0';
124
125	int status;
126	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
127	// bug in __cxa_demangle for single-character lower-case non-mangled names
128	if ( status == 0 ) { // demangling successful ?
129	cerr << "(" << frameNo << ") " << messages[i] << " : "
130	<< real_name << "+" << offset_begin << offset_end << endl;
131	} else { // otherwise, output mangled name
132	cerr << "(" << frameNo << ") " << messages[i] << " : "
133	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
134	} // if
135
136	free( real_name );
137	} else { // otherwise, print the whole line
138	cerr << "(" << frameNo << ") " << messages[i] << endl;
139	} // if
140	} // for
141
142	free( messages );
143	} // backtrace
144
145	void sigSegvBusHandler( int sig_num ) {
146	cerr << "CFA runtime error program cfa-cpp terminated with "
147	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
148	<< "." << endl;
149	backtrace( 2 ); // skip first 2 stack frames
150	//_exit( EXIT_FAILURE );
151	abort();
152	} // sigSegvBusHandler
153
154	void sigAbortHandler( __attribute__((unused)) int sig_num ) {
155	backtrace( 6 ); // skip first 6 stack frames
156	signal( SIGABRT, SIG_DFL); // reset default signal handler
157	raise( SIGABRT ); // reraise SIGABRT
158	} // sigAbortHandler
159
160
161	int main( int argc, char * argv[] ) {
162	FILE * input; // use FILE rather than istream because yyin is FILE
163	ostream * output = & cout;
164	const char * filename = nullptr;
165	list< Declaration * > translationUnit;
166
167	signal( SIGSEGV, sigSegvBusHandler );
168	signal( SIGBUS, sigSegvBusHandler );
169	signal( SIGABRT, sigAbortHandler );
170
171	// std::cout << "main" << std::endl;
172	// for ( int i = 0; i < argc; i += 1 ) {
173	// std::cout << '\t' << argv[i] << std::endl;
174	// } // for
175
176	parse_cmdline( argc, argv, filename ); // process command-line arguments
177	CodeGen::FixMain::setReplaceMain( !nomainp );
178
179	try {
180	// choose to read the program from a file or stdin
181	if ( optind < argc ) { // any commands after the flags ? => input file name
182	input = fopen( argv[ optind ], "r" );
183	assertf( input, "cannot open %s\n", argv[ optind ] );
184	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
185	if ( filename == nullptr ) filename = argv[ optind ];
186	// prelude filename comes in differently
187	if ( libcfap ) filename = "prelude.cfa";
188	optind += 1;
189	} else { // no input file name
190	input = stdin;
191	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
192	// a fake name along
193	if ( filename == nullptr ) filename = "stdin";
194	} // if
195
196	Stats::Time::StartGlobal();
197	NewPass("Parse");
198	Stats::Time::StartBlock("Parse");
199
200	// read in the builtins, extras, and the prelude
201	if ( ! nopreludep ) { // include gcc builtins
202	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
203
204	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
205
206	// Read to gcc builtins, if not generating the cfa library
207	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
208	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
209	parse( gcc_builtins, LinkageSpec::Compiler );
210
211	// read the extra prelude in, if not generating the cfa library
212	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
213	assertf( extras, "cannot open extras.cf\n" );
214	parse( extras, LinkageSpec::BuiltinC );
215
216	if ( ! libcfap ) {
217	// read the prelude in, if not generating the cfa library
218	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
219	assertf( prelude, "cannot open prelude.cfa\n" );
220	parse( prelude, LinkageSpec::Intrinsic );
221
222	// Read to cfa builtins, if not generating the cfa library
223	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
224	assertf( builtins, "cannot open builtins.cf\n" );
225	parse( builtins, LinkageSpec::BuiltinCFA );
226	} // if
227	} // if
228
229	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
230
231	if ( parsep ) {
232	parseTree->printList( cout );
233	delete parseTree;
234	return 0;
235	} // if
236
237	buildList( parseTree, translationUnit );
238	delete parseTree;
239	parseTree = nullptr;
240
241	if ( astp ) {
242	dump( translationUnit );
243	return 0;
244	} // if
245
246	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
247	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
248	// works okay for now.
249	CodeTools::fillLocations( translationUnit );
250	Stats::Time::StopBlock();
251
252	// add the assignment statement after the initialization of a type parameter
253	PASS( "Validate", SymTab::validate( translationUnit, symtabp ) );
254	if ( symtabp ) {
255	deleteAll( translationUnit );
256	return 0;
257	} // if
258
259	if ( expraltp ) {
260	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
261	acceptAll( translationUnit, printer );
262	return 0;
263	} // if
264
265	if ( validp ) {
266	dump( translationUnit );
267	return 0;
268	} // if
269
270	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
271	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
272	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
273	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
274	if ( libcfap ) {
275	// generate the bodies of cfa library functions
276	LibCfa::makeLibCfa( translationUnit );
277	} // if
278
279	if ( declstatsp ) {
280	CodeTools::printDeclStats( translationUnit );
281	deleteAll( translationUnit );
282	return 0;
283	}
284
285	if ( bresolvep ) {
286	dump( translationUnit );
287	return 0;
288	} // if
289
290	CodeTools::fillLocations( translationUnit );
291
292	if ( resolvprotop ) {
293	CodeTools::dumpAsResolvProto( translationUnit );
294	return 0;
295	}
296
297	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
298	if ( exprp ) {
299	dump( translationUnit );
300	return 0;
301	} // if
302
303	// fix ObjectDecl - replaces ConstructorInit nodes
304	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
305	if ( ctorinitp ) {
306	dump ( translationUnit );
307	return 0;
308	} // if
309
310	PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( translationUnit ) ); // xxx - is this the right place for this? want to expand ASAP so tha, sequent passes don't need to worry about double-visiting a unique expr - needs to go after InitTweak::fix so that copy constructed return declarations are reused
311
312	PASS( "Translate EHM" , ControlStruct::translateEHM( translationUnit ) );
313
314	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
315
316	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
317
318	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
319
320	if ( tuplep ) {
321	dump( translationUnit );
322	return 0;
323	}
324
325	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
326
327	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
328	if ( genericsp ) {
329	dump( translationUnit );
330	return 0;
331	}
332	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
333
334
335	if ( bboxp ) {
336	dump( translationUnit );
337	return 0;
338	} // if
339	PASS( "Box", GenPoly::box( translationUnit ) );
340
341	if ( bcodegenp ) {
342	dump( translationUnit );
343	return 0;
344	}
345
346	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
347	output = new ofstream( argv[ optind ] );
348	} // if
349
350	CodeTools::fillLocations( translationUnit );
351	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! noprotop, prettycodegenp, true, linemarks ) );
352
353	CodeGen::FixMain::fix( *output, (PreludeDirector + "/bootloader.c").c_str() );
354	if ( output != &cout ) {
355	delete output;
356	} // if
357	} catch ( SemanticErrorException &e ) {
358	if ( errorp ) {
359	cerr << "---AST at error:---" << endl;
360	dump( translationUnit, cerr );
361	cerr << endl << "---End of AST, begin error message:---\n" << endl;
362	} // if
363	e.print();
364	if ( output != &cout ) {
365	delete output;
366	} // if
367	return 1;
368	} catch ( UnimplementedError &e ) {
369	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
370	if ( output != &cout ) {
371	delete output;
372	} // if
373	return 1;
374	} catch ( CompilerError &e ) {
375	cerr << "Compiler Error: " << e.get_what() << endl;
376	cerr << "(please report bugs to [REDACTED])" << endl;
377	if ( output != &cout ) {
378	delete output;
379	} // if
380	return 1;
381	} catch(...) {
382	std::exception_ptr eptr = std::current_exception();
383	try {
384	if (eptr) {
385	std::rethrow_exception(eptr);
386	}
387	else {
388	std::cerr << "Exception Uncaught and Unkown" << std::endl;
389	}
390	} catch(const std::exception& e) {
391	std::cerr << "Uncaught Exception \"" << e.what() << "\"\n";
392	}
393	return 1;
394	}// try
395
396	deleteAll( translationUnit );
397	Stats::print();
398
399	return 0;
400	} // main
401
402	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
403	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Linemarks, Nolinemarks, Nopreamble, Parse, PreludeDir, Prototypes, Resolver, ResolvProto, Stats, Symbol, Tree, TupleExpansion, Validate};
404
405	static struct option long_opts[] = {
406	{ "ast", no_argument, 0, Ast },
407	{ "before-box", no_argument, 0, Bbox },
408	{ "before-resolver", no_argument, 0, Bresolver },
409	{ "ctorinitfix", no_argument, 0, CtorInitFix },
410	{ "decl-stats", no_argument, 0, DeclStats },
411	{ "expr", no_argument, 0, Expr },
412	{ "expralt", no_argument, 0, ExprAlt },
413	{ "grammar", no_argument, 0, Grammar },
414	{ "libcfa", no_argument, 0, LibCFA },
415	{ "line-marks", no_argument, 0, Linemarks },
416	{ "no-line-marks", no_argument, 0, Nolinemarks },
417	{ "no-preamble", no_argument, 0, Nopreamble },
418	{ "parse", no_argument, 0, Parse },
419	{ "prelude-dir", required_argument, 0, PreludeDir },
420	{ "no-prototypes", no_argument, 0, Prototypes },
421	{ "resolver", no_argument, 0, Resolver },
422	{ "resolv-proto", no_argument, 0, ResolvProto },
423	{ "stats", required_argument, 0, Stats },
424	{ "symbol", no_argument, 0, Symbol },
425	{ "tree", no_argument, 0, Tree },
426	{ "tuple-expansion", no_argument, 0, TupleExpansion },
427	{ "validate", no_argument, 0, Validate },
428	{ 0, 0, 0, 0 }
429	}; // long_opts
430	int long_index;
431
432	opterr = 0; // (global) prevent getopt from printing error messages
433
434	bool Wsuppress = false, Werror = false;
435	int c;
436	while ( (c = getopt_long( argc, argv, "abBcCdefgGlLmnNpqrRstTvwW:yzZD:F:", long_opts, &long_index )) != -1 ) {
437	switch ( c ) {
438	case Ast:
439	case 'a': // dump AST
440	astp = true;
441	break;
442	case Bresolver:
443	case 'b': // print before resolver steps
444	bresolvep = true;
445	break;
446	case 'B': // print before box steps
447	bboxp = true;
448	break;
449	case CtorInitFix:
450	case 'c': // print after constructors and destructors are replaced
451	ctorinitp = true;
452	break;
453	case 'C': // print before code generation
454	bcodegenp = true;
455	break;
456	case DeclStats:
457	case 'd':
458	declstatsp = true;
459	break;
460	case Expr:
461	case 'e': // dump AST after expression analysis
462	exprp = true;
463	break;
464	case ExprAlt:
465	case 'f': // print alternatives for expressions
466	expraltp = true;
467	break;
468	case Grammar:
469	case 'g': // bison debugging info (grammar rules)
470	yydebug = true;
471	break;
472	case 'G': // dump AST after instantiate generics
473	genericsp = true;
474	break;
475	case LibCFA:
476	case 'l': // generate libcfa.c
477	libcfap = true;
478	break;
479	case Linemarks:
480	case 'L': // print lines marks
481	linemarks = true;
482	break;
483	case Nopreamble:
484	case 'n': // do not read preamble
485	nopreludep = true;
486	break;
487	case Nolinemarks:
488	case 'N': // suppress line marks
489	linemarks = false;
490	break;
491	case Prototypes:
492	case 'p': // generate prototypes for preamble functions
493	noprotop = true;
494	break;
495	case PreludeDir:
496	PreludeDirector = optarg;
497	break;
498	case 'm': // don't replace the main
499	nomainp = true;
500	break;
501	case Parse:
502	case 'q': // dump parse tree
503	parsep = true;
504	break;
505	case Resolver:
506	case 'r': // print resolver steps
507	resolvep = true;
508	break;
509	case 'R': // dump resolv-proto instance
510	resolvprotop = true;
511	break;
512	case Stats:
513	Stats::parse_params(optarg);
514	break;
515	case Symbol:
516	case 's': // print symbol table events
517	symtabp = true;
518	break;
519	case Tree:
520	case 't': // build in tree
521	treep = true;
522	break;
523	case TupleExpansion:
524	case 'T': // print after tuple expansion
525	tuplep = true;
526	break;
527	case 'v': // dump AST after decl validation pass
528	validp = true;
529	break;
530	case 'w':
531	Wsuppress = true;
532	break;
533	case 'W':
534	if ( strcmp( optarg, "all" ) == 0 ) {
535	SemanticWarning_EnableAll();
536	} else if ( strcmp( optarg, "error" ) == 0 ) {
537	Werror = true;
538	} else {
539	char * warning = optarg;
540	Severity s;
541	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
542	warning += 3;
543	s = Severity::Suppress;
544	} else {
545	s = Severity::Warn;
546	} // if
547	SemanticWarning_Set( warning, s );
548	} // if
549	break;
550	case 'y': // dump AST on error
551	errorp = true;
552	break;
553	case 'z': // dump as codegen rather than AST
554	codegenp = true;
555	break;
556	case 'Z': // prettyprint during codegen (i.e. print unmangled names, etc.)
557	prettycodegenp = true;
558	break;
559	case 'D': // ignore -Dxxx
560	break;
561	case 'F': // source file-name without suffix
562	filename = optarg;
563	break;
564	case '?':
565	if ( optopt ) { // short option ?
566	assertf( false, "Unknown option: -%c\n", (char)optopt );
567	} else {
568	assertf( false, "Unknown option: %s\n", argv[optind - 1] );
569	} // if
570	#if defined(__GNUC__) && __GNUC__ >= 7
571	__attribute__((fallthrough));
572	#endif
573	default:
574	abort();
575	} // switch
576	} // while
577
578	if ( Werror ) {
579	SemanticWarning_WarningAsError();
580	} // if
581	if ( Wsuppress ) {
582	SemanticWarning_SuppressAll();
583	} // if
584	// for ( const auto w : WarningFormats ) {
585	// cout << w.name << ' ' << (int)w.severity << endl;
586	// } // for
587	} // parse_cmdline
588
589	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
590	extern int yyparse( void );
591	extern FILE * yyin;
592	extern int yylineno;
593
594	::linkage = linkage; // set globals
595	yyin = input;
596	yylineno = 1;
597	int parseStatus = yyparse();
598
599	fclose( input );
600	if ( shouldExit \|\| parseStatus != 0 ) {
601	exit( parseStatus );
602	} // if
603	} // parse
604
605	static bool notPrelude( Declaration * decl ) {
606	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
607	} // notPrelude
608
609	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
610	list< Declaration * > decls;
611
612	if ( noprotop ) {
613	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
614	} else {
615	decls = translationUnit;
616	} // if
617
618	// depending on commandline options, either generate code or dump the AST
619	if ( codegenp ) {
620	CodeGen::generate( decls, out, ! noprotop, prettycodegenp );
621	} else {
622	printAll( decls, out );
623	}
624	deleteAll( translationUnit );
625	} // dump
626
627	// Local Variables: //
628	// tab-width: 4 //
629	// mode: c++ //
630	// compile-command: "make install" //
631	// End: //

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