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source: src/main.cc @ 7a560c1

ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc

Last change on this file since 7a560c1 was fa2de95, checked in by Aaron Moss <a3moss@…>, 7 years ago
Initial functional version of DeclStats?
Property mode set to `100644`
File size: 14.7 KB

Rev	Line
[b87a5ed]	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	//
[71f4e4f]	7	// main.cc --
[b87a5ed]	8	//
[843054c2]	9	// Author : Richard C. Bilson
[b87a5ed]	10	// Created On : Fri May 15 23:12:02 2015
[dd51906]	11	// Last Modified By : Peter A. Buhr
[375a068]	12	// Last Modified On : Wed Dec 14 14:35:54 2016
	13	// Update Count : 436
[b87a5ed]	14	//
	15
[51b7345]	16	#include <iostream>
	17	#include <fstream>
[e6955b1]	18	#include <signal.h> // signal
	19	#include <getopt.h> // getopt
[0afffee]	20	#include <execinfo.h> // backtrace, backtrace_symbols
[e6955b1]	21	#include <cxxabi.h> // __cxa_demangle
[0afffee]	22	#include <cstring> // index
[e6955b1]	23
	24	using namespace std;
	25
[0da3e2c]	26	#include "Parser/lex.h"
	27	#include "Parser/parser.h"
	28	#include "Parser/TypedefTable.h"
[51b7345]	29	#include "GenPoly/Lvalue.h"
	30	#include "GenPoly/Specialize.h"
	31	#include "GenPoly/Box.h"
	32	#include "GenPoly/CopyParams.h"
[ea5daeb]	33	#include "GenPoly/InstantiateGeneric.h"
[51b7345]	34	#include "CodeGen/Generate.h"
	35	#include "CodeGen/FixNames.h"
[13de47bc]	36	#include "CodeGen/FixMain.h"
[41a7137]	37	#include "CodeTools/DeclStats.h"
[51b7345]	38	#include "ControlStruct/Mutate.h"
	39	#include "SymTab/Validate.h"
	40	#include "ResolvExpr/AlternativePrinter.h"
	41	#include "ResolvExpr/Resolver.h"
	42	#include "MakeLibCfa.h"
[a0fdbd5]	43	#include "InitTweak/GenInit.h"
[71f4e4f]	44	#include "InitTweak/FixInit.h"
[d3b7937]	45	#include "Common/UnimplementedError.h"
[51b7345]	46	#include "../config.h"
[6eb8948]	47	#include "Tuples/Tuples.h"
[51b7345]	48
	49	using namespace std;
	50
[e6955b1]	51	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
[81419b5]	52
[0da3e2c]	53
[8b7ee09]	54	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	55	TypedefTable typedefTable;
[cbaee0d]	56	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	57
[926af74]	58	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	59	bool
	60	astp = false,
[de62360d]	61	bresolvep = false,
[fea7ca7]	62	bboxp = false,
[ca1c11f]	63	ctorinitp = false,
[41a7137]	64	declstatsp = false,
[b87a5ed]	65	exprp = false,
	66	expraltp = false,
	67	libcfap = false,
[de62360d]	68	nopreludep = false,
[1ab4ce2]	69	noprotop = false,
[3fe34ae]	70	nomainp = false,
[de62360d]	71	parsep = false,
[b87a5ed]	72	resolvep = false, // used in AlternativeFinder
	73	symtabp = false,
[d3b7937]	74	treep = false,
[626dbc10]	75	tuplep = false,
[b87a5ed]	76	validp = false,
[de62360d]	77	errorp = false,
	78	codegenp = false;
[b87a5ed]	79
[926af74]	80	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	81	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	82	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	83
[0afffee]	84	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	85	enum { Frames = 50 };
	86	void * array[Frames];
[0afffee]	87	int size = ::backtrace( array, Frames );
	88	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	89
	90	*index( messages[0], '(' ) = '\0'; // find executable name
	91	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	92
[b542bfb]	93	// skip last 2 stack frames after main
	94	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	95	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	96	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	97	if ( *p == '(' ) {
[46f6134]	98	mangled_name = p;
[0afffee]	99	} else if ( *p == '+' ) {
[e6955b1]	100	offset_begin = p;
[0afffee]	101	} else if ( *p == ')' ) {
[e6955b1]	102	offset_end = p;
	103	break;
	104	} // if
	105	} // for
	106
	107	// if line contains symbol, attempt to demangle
[b542bfb]	108	int frameNo = i - start;
[e6955b1]	109	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	110	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	111	*offset_begin++ = '\0';
	112	*offset_end++ = '\0';
	113
[0afffee]	114	int status;
[e6955b1]	115	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	116	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	117	if ( status == 0 ) { // demangling successful ?
[b542bfb]	118	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	119	<< real_name << "+" << offset_begin << offset_end << endl;
	120	} else { // otherwise, output mangled name
[b542bfb]	121	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	122	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	123	} // if
[0afffee]	124
[e6955b1]	125	free( real_name );
	126	} else { // otherwise, print the whole line
[b542bfb]	127	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	128	} // if
	129	} // for
[b542bfb]	130
[e6955b1]	131	free( messages );
[b542bfb]	132	} // backtrace
	133
	134	void sigSegvBusHandler( int sig_num ) {
	135	cerr << "CFA runtime error program cfa-cpp terminated with "
	136	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	137	<< "." << endl;
[b542bfb]	138	backtrace( 2 ); // skip first 2 stack frames
[e6955b1]	139	exit( EXIT_FAILURE );
	140	} // sigSegvBusHandler
[0da3e2c]	141
[b542bfb]	142	void sigAbortHandler( int sig_num ) {
	143	backtrace( 6 ); // skip first 6 stack frames
	144	signal( SIGABRT, SIG_DFL); // reset default signal handler
	145	raise( SIGABRT ); // reraise SIGABRT
	146	} // sigAbortHandler
	147
	148
[cbaee0d]	149	int main( int argc, char * argv[] ) {
[3b8e52c]	150	FILE * input; // use FILE rather than istream because yyin is FILE
[e6955b1]	151	ostream *output = & cout;
[926af74]	152	const char *filename = nullptr;
[e6955b1]	153	list< Declaration * > translationUnit;
	154
	155	signal( SIGSEGV, sigSegvBusHandler );
	156	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	157	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	158
[0da3e2c]	159	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	160	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	161
	162	try {
[81419b5]	163	// choose to read the program from a file or stdin
[3b8e52c]	164	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	165	input = fopen( argv[ optind ], "r" );
[3b8e52c]	166	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162]	167	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	168	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	169	// prelude filename comes in differently
	170	if ( libcfap ) filename = "prelude.cf";
[b87a5ed]	171	optind += 1;
[3b8e52c]	172	} else { // no input file name
[b87a5ed]	173	input = stdin;
[2a7e29b]	174	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	175	// a fake name along
[926af74]	176	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	177	} // if
	178
[159c62e]	179	// read in the builtins, extras, and the prelude
[de62360d]	180	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	181	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[375a068]	182	FILE * builtins = fopen( libcfap \| treep ? "../prelude/builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
[3b8e52c]	183	assertf( builtins, "cannot open builtins.cf\n" );
[81419b5]	184	parse( builtins, LinkageSpec::Compiler );
	185
[159c62e]	186	// read the extra prelude in, if not generating the cfa library
[375a068]	187	FILE * extras = fopen( libcfap \| treep ? "../prelude/extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	188	assertf( extras, "cannot open extras.cf\n" );
[159c62e]	189	parse( extras, LinkageSpec::C );
	190
[81419b5]	191	if ( ! libcfap ) {
[faf8857]	192	// read the prelude in, if not generating the cfa library
[375a068]	193	FILE * prelude = fopen( treep ? "../prelude/prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	194	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	195	parse( prelude, LinkageSpec::Intrinsic );
[b87a5ed]	196	} // if
	197	} // if
[81419b5]	198
[926af74]	199	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	200
[b87a5ed]	201	if ( parsep ) {
[e6955b1]	202	parseTree->printList( cout );
[0da3e2c]	203	delete parseTree;
[b87a5ed]	204	return 0;
	205	} // if
	206
[0da3e2c]	207	buildList( parseTree, translationUnit );
	208	delete parseTree;
[cbaee0d]	209	parseTree = nullptr;
[b87a5ed]	210
	211	if ( astp ) {
[1ab4ce2]	212	dump( translationUnit );
[b87a5ed]	213	return 0;
	214	} // if
	215
[839ccbb]	216	// add the assignment statement after the initialization of a type parameter
[81419b5]	217	OPTPRINT( "validate" )
	218	SymTab::validate( translationUnit, symtabp );
	219	if ( symtabp ) {
[46f6134]	220	deleteAll( translationUnit );
[b87a5ed]	221	return 0;
	222	} // if
	223
[81419b5]	224	if ( expraltp ) {
[e6955b1]	225	ResolvExpr::AlternativePrinter printer( cout );
[81419b5]	226	acceptAll( translationUnit, printer );
[b87a5ed]	227	return 0;
	228	} // if
	229
	230	if ( validp ) {
[1ab4ce2]	231	dump( translationUnit );
[b87a5ed]	232	return 0;
	233	} // if
	234
[81419b5]	235	OPTPRINT( "mutate" )
	236	ControlStruct::mutate( translationUnit );
[71f4e4f]	237	OPTPRINT( "fixNames" )
[81419b5]	238	CodeGen::fixNames( translationUnit );
[f1e012b]	239	OPTPRINT( "tweakInit" )
[a0fdbd5]	240	InitTweak::genInit( translationUnit );
[bf32bb8]	241	OPTPRINT( "expandMemberTuples" );
	242	Tuples::expandMemberTuples( translationUnit );
[81419b5]	243	if ( libcfap ) {
	244	// generate the bodies of cfa library functions
	245	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	246	} // if
	247
[fa2de95]	248	if ( declstatsp ) {
	249	CodeTools::printDeclStats( translationUnit );
	250	deleteAll( translationUnit );
	251	return 0;
	252	}
	253
[de62360d]	254	if ( bresolvep ) {
[1ab4ce2]	255	dump( translationUnit );
[de62360d]	256	return 0;
	257	} // if
	258
[81419b5]	259	OPTPRINT( "resolve" )
[b87a5ed]	260	ResolvExpr::resolve( translationUnit );
[81419b5]	261	if ( exprp ) {
[1ab4ce2]	262	dump( translationUnit );
[ca1c11f]	263	return 0;
[926af74]	264	} // if
[81419b5]	265
[71f4e4f]	266	// fix ObjectDecl - replaces ConstructorInit nodes
[6cf27a07]	267	OPTPRINT( "fixInit" )
	268	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
[ca1c11f]	269	if ( ctorinitp ) {
	270	dump ( translationUnit );
	271	return 0;
[926af74]	272	} // if
[71f4e4f]	273
[141b786]	274	OPTPRINT( "expandUniqueExpr" ); // xxx - is this the right place for this? want to expand ASAP so that subsequent 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
	275	Tuples::expandUniqueExpr( translationUnit );
[626dbc10]	276
	277	OPTPRINT( "convertSpecializations" ) // needs to happen before tuple types are expanded
	278	GenPoly::convertSpecializations( translationUnit );
	279
[d9fa60a]	280	OPTPRINT( "expandTuples" ); // xxx - is this the right place for this?
	281	Tuples::expandTuples( translationUnit );
[626dbc10]	282	if ( tuplep ) {
	283	dump( translationUnit );
	284	return 0;
	285	}
[141b786]	286
[ea5daeb]	287	OPTPRINT("instantiateGenerics")
	288	GenPoly::instantiateGeneric( translationUnit );
[81419b5]	289	OPTPRINT( "copyParams" );
[b87a5ed]	290	GenPoly::copyParams( translationUnit );
[81419b5]	291	OPTPRINT( "convertLvalue" )
[b87a5ed]	292	GenPoly::convertLvalue( translationUnit );
[fea7ca7]	293
	294	if ( bboxp ) {
	295	dump( translationUnit );
	296	return 0;
[926af74]	297	} // if
[81419b5]	298	OPTPRINT( "box" )
[b87a5ed]	299	GenPoly::box( translationUnit );
[81419b5]	300
[2871210]	301	// print tree right before code generation
[81419b5]	302	if ( codegenp ) {
[1ab4ce2]	303	dump( translationUnit );
[81419b5]	304	return 0;
	305	} // if
[b87a5ed]	306
[13de47bc]	307	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	308	output = new ofstream( argv[ optind ] );
	309	} // if
[0270824]	310
[13de47bc]	311	CodeGen::generate( translationUnit, *output, ! noprotop );
[0270824]	312
[13de47bc]	313	CodeGen::FixMain::fix( *output, treep ? "../prelude/bootloader.c" : CFA_LIBDIR "/bootloader.c" );
[0270824]	314
[e6955b1]	315	if ( output != &cout ) {
[b87a5ed]	316	delete output;
	317	} // if
	318	} catch ( SemanticError &e ) {
	319	if ( errorp ) {
[e6955b1]	320	cerr << "---AST at error:---" << endl;
	321	dump( translationUnit, cerr );
	322	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	323	} // if
[e6955b1]	324	e.print( cerr );
	325	if ( output != &cout ) {
[b87a5ed]	326	delete output;
	327	} // if
	328	return 1;
	329	} catch ( UnimplementedError &e ) {
[e6955b1]	330	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	331	if ( output != &cout ) {
[b87a5ed]	332	delete output;
	333	} // if
	334	return 1;
	335	} catch ( CompilerError &e ) {
[e6955b1]	336	cerr << "Compiler Error: " << e.get_what() << endl;
	337	cerr << "(please report bugs to " << endl;
	338	if ( output != &cout ) {
[b87a5ed]	339	delete output;
	340	} // if
	341	return 1;
	342	} // try
	343
[39786813]	344	deleteAll( translationUnit );
[b87a5ed]	345	return 0;
[d9a0e76]	346	} // main
[51b7345]	347
[cbaee0d]	348	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[41a7137]	349	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
[0da3e2c]	350
	351	static struct option long_opts[] = {
	352	{ "ast", no_argument, 0, Ast },
	353	{ "before-box", no_argument, 0, Bbox },
	354	{ "before-resolver", no_argument, 0, Bresolver },
	355	{ "ctorinitfix", no_argument, 0, CtorInitFix },
[41a7137]	356	{ "decl-stats", no_argument, 0, DeclStats },
[0da3e2c]	357	{ "expr", no_argument, 0, Expr },
	358	{ "expralt", no_argument, 0, ExprAlt },
	359	{ "grammar", no_argument, 0, Grammar },
	360	{ "libcfa", no_argument, 0, LibCFA },
	361	{ "no-preamble", no_argument, 0, Nopreamble },
	362	{ "parse", no_argument, 0, Parse },
	363	{ "no-prototypes", no_argument, 0, Prototypes },
	364	{ "resolver", no_argument, 0, Resolver },
	365	{ "symbol", no_argument, 0, Symbol },
	366	{ "tree", no_argument, 0, Tree },
[626dbc10]	367	{ "tuple-expansion", no_argument, 0, TupleExpansion },
[0da3e2c]	368	{ "validate", no_argument, 0, Validate },
	369	{ 0, 0, 0, 0 }
	370	}; // long_opts
	371	int long_index;
	372
	373	opterr = 0; // (global) prevent getopt from printing error messages
	374
	375	int c;
[41a7137]	376	while ( (c = getopt_long( argc, argv, "abBcdefglmnpqrstTvyzD:F:", long_opts, &long_index )) != -1 ) {
[0da3e2c]	377	switch ( c ) {
	378	case Ast:
	379	case 'a': // dump AST
	380	astp = true;
	381	break;
	382	case Bresolver:
	383	case 'b': // print before resolver steps
	384	bresolvep = true;
	385	break;
[626dbc10]	386	case 'B': // print before box steps
[0da3e2c]	387	bboxp = true;
	388	break;
	389	case CtorInitFix:
	390	case 'c':
	391	ctorinitp = true;
	392	break;
[41a7137]	393	case DeclStats:
	394	case 'd':
	395	declstatsp = true;
	396	break;
[0da3e2c]	397	case Expr:
	398	case 'e': // dump AST after expression analysis
	399	exprp = true;
	400	break;
	401	case ExprAlt:
	402	case 'f': // print alternatives for expressions
	403	expraltp = true;
	404	break;
	405	case Grammar:
	406	case 'g': // bison debugging info (grammar rules)
[926af74]	407	yydebug = true;
[0da3e2c]	408	break;
	409	case LibCFA:
	410	case 'l': // generate libcfa.c
	411	libcfap = true;
	412	break;
	413	case Nopreamble:
	414	case 'n': // do not read preamble
	415	nopreludep = true;
	416	break;
	417	case Prototypes:
	418	case 'p': // generate prototypes for preamble functions
	419	noprotop = true;
	420	break;
[3fe34ae]	421	case 'm': // don't replace the main
	422	nomainp = true;
	423	break;
[0da3e2c]	424	case Parse:
	425	case 'q': // dump parse tree
	426	parsep = true;
	427	break;
	428	case Resolver:
	429	case 'r': // print resolver steps
	430	resolvep = true;
	431	break;
	432	case Symbol:
	433	case 's': // print symbol table events
	434	symtabp = true;
	435	break;
	436	case Tree:
	437	case 't': // build in tree
	438	treep = true;
	439	break;
[626dbc10]	440	case TupleExpansion:
	441	case 'T': // print after tuple expansion
	442	tuplep = true;
	443	break;
[0da3e2c]	444	case 'v': // dump AST after decl validation pass
	445	validp = true;
	446	break;
	447	case 'y':
	448	errorp = true;
	449	break;
	450	case 'z':
	451	codegenp = true;
	452	break;
	453	case 'D': // ignore -Dxxx
	454	break;
	455	case 'F': // source file-name without suffix
	456	filename = optarg;
	457	break;
	458	case '?':
[3b8e52c]	459	assertf( false, "Unknown option: '%c'\n", (char)optopt );
[0da3e2c]	460	default:
	461	abort();
	462	} // switch
	463	} // while
	464	} // parse_cmdline
	465
[8b7ee09]	466	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	467	extern int yyparse( void );
[cbaee0d]	468	extern FILE * yyin;
[0da3e2c]	469	extern int yylineno;
	470
[8b7ee09]	471	::linkage = linkage; // set globals
[0da3e2c]	472	yyin = input;
	473	yylineno = 1;
	474	typedefTable.enterScope();
	475	int parseStatus = yyparse();
[81419b5]	476
	477	fclose( input );
[0da3e2c]	478	if ( shouldExit \|\| parseStatus != 0 ) {
	479	exit( parseStatus );
[81419b5]	480	} // if
[0da3e2c]	481	} // parse
[81419b5]	482
[1ab4ce2]	483	static bool notPrelude( Declaration * decl ) {
	484	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	485	} // notPrelude
[1ab4ce2]	486
[e6955b1]	487	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	488	list< Declaration * > decls;
[926af74]	489
[1ab4ce2]	490	if ( noprotop ) {
[e6955b1]	491	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	492	} else {
	493	decls = translationUnit;
[926af74]	494	} // if
[1ab4ce2]	495
[f77f12e2]	496	printAll( decls, out );
[7f5566b]	497	deleteAll( translationUnit );
[0da3e2c]	498	} // dump
[1ab4ce2]	499
[51b7345]	500	// Local Variables: //
[b87a5ed]	501	// tab-width: 4 //
	502	// mode: c++ //
	503	// compile-command: "make install" //
[51b7345]	504	// End: //

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