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source: src/main.cc @ 066d77a

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 066d77a was f0121d7, checked in by Rob Schluntz <rschlunt@…>, 8 years ago
refactor genCtorInit, generate ConstructorInit? for UniqueExpr?
Property mode set to `100644`
File size: 13.4 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
[b542bfb]	12	// Last Modified On : Mon Aug 29 17:34:39 2016
	13	// Update Count : 426
[b87a5ed]	14	//
	15
[51b7345]	16	#include <iostream>
	17	#include <fstream>
[e6955b1]	18	#include <signal.h> // signal
	19	#include <getopt.h> // getopt
	20	#include <execinfo.h> // backtrace, backtrace_symbols_fd
	21	#include <cxxabi.h> // __cxa_demangle
	22
	23	using namespace std;
	24
[0da3e2c]	25	#include "Parser/lex.h"
	26	#include "Parser/parser.h"
	27	#include "Parser/TypedefTable.h"
[51b7345]	28	#include "GenPoly/Lvalue.h"
	29	#include "GenPoly/Specialize.h"
	30	#include "GenPoly/Box.h"
	31	#include "GenPoly/CopyParams.h"
[ea5daeb]	32	#include "GenPoly/InstantiateGeneric.h"
[51b7345]	33	#include "CodeGen/Generate.h"
	34	#include "CodeGen/FixNames.h"
	35	#include "ControlStruct/Mutate.h"
	36	#include "SymTab/Validate.h"
	37	#include "ResolvExpr/AlternativePrinter.h"
	38	#include "ResolvExpr/Resolver.h"
	39	#include "MakeLibCfa.h"
[a0fdbd5]	40	#include "InitTweak/GenInit.h"
[71f4e4f]	41	#include "InitTweak/FixInit.h"
[d3b7937]	42	#include "Common/UnimplementedError.h"
[51b7345]	43	#include "../config.h"
[6eb8948]	44	#include "Tuples/Tuples.h"
[51b7345]	45
	46	using namespace std;
	47
[e6955b1]	48	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
[81419b5]	49
[0da3e2c]	50
[8b7ee09]	51	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	52	TypedefTable typedefTable;
[cbaee0d]	53	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	54
[926af74]	55	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	56	bool
	57	astp = false,
[de62360d]	58	bresolvep = false,
[fea7ca7]	59	bboxp = false,
[ca1c11f]	60	ctorinitp = false,
[b87a5ed]	61	exprp = false,
	62	expraltp = false,
	63	libcfap = false,
[de62360d]	64	nopreludep = false,
[1ab4ce2]	65	noprotop = false,
[de62360d]	66	parsep = false,
[b87a5ed]	67	resolvep = false, // used in AlternativeFinder
	68	symtabp = false,
[d3b7937]	69	treep = false,
[b87a5ed]	70	validp = false,
[de62360d]	71	errorp = false,
	72	codegenp = false;
[b87a5ed]	73
[926af74]	74	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	75	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	76	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	77
[b542bfb]	78	void backtrace( int start ) { // skip first N stack frames
[e6955b1]	79	enum { Frames = 50 };
	80	void * array[Frames];
	81	int size = backtrace( array, Frames );
[46f6134]	82	char ** messages = backtrace_symbols( array, size );
[e6955b1]	83
[b542bfb]	84	// skip last 2 stack frames after main
	85	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	86	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	87	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
	88	if (*p == '(') {
[46f6134]	89	mangled_name = p;
[e6955b1]	90	} else if (*p == '+') {
	91	offset_begin = p;
	92	} else if (*p == ')') {
	93	offset_end = p;
	94	break;
	95	} // if
	96	} // for
	97
	98	// if line contains symbol, attempt to demangle
[b542bfb]	99	int frameNo = i - start;
[e6955b1]	100	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
	101	*mangled_name++ = '\0';
	102	*offset_begin++ = '\0';
	103	*offset_end++ = '\0';
	104
[b542bfb]	105	int status, frameNo = i - start;
[e6955b1]	106	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
	107	if ( status == 0 ) { // demangling successful ?
[b542bfb]	108	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	109	<< real_name << "+" << offset_begin << offset_end << endl;
	110
	111	} else { // otherwise, output mangled name
[b542bfb]	112	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	113	<< mangled_name << "+" << offset_begin << offset_end << endl;
	114	} // if
	115	free( real_name );
	116	} else { // otherwise, print the whole line
[b542bfb]	117	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	118	} // if
	119	} // for
[b542bfb]	120
[e6955b1]	121	free( messages );
[b542bfb]	122	} // backtrace
	123
	124	void sigSegvBusHandler( int sig_num ) {
	125	cerr << "CFA runtime error program cfa-cpp terminated with "
	126	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
	127	<< " backtrace:" << endl;
	128	backtrace( 2 ); // skip first 2 stack frames
[e6955b1]	129	exit( EXIT_FAILURE );
	130	} // sigSegvBusHandler
[0da3e2c]	131
[b542bfb]	132	void sigAbortHandler( int sig_num ) {
	133	backtrace( 6 ); // skip first 6 stack frames
	134	signal( SIGABRT, SIG_DFL); // reset default signal handler
	135	raise( SIGABRT ); // reraise SIGABRT
	136	} // sigAbortHandler
	137
	138
[cbaee0d]	139	int main( int argc, char * argv[] ) {
[3b8e52c]	140	FILE * input; // use FILE rather than istream because yyin is FILE
[e6955b1]	141	ostream *output = & cout;
[926af74]	142	const char *filename = nullptr;
[e6955b1]	143	list< Declaration * > translationUnit;
	144
	145	signal( SIGSEGV, sigSegvBusHandler );
	146	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	147	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	148
[0da3e2c]	149	parse_cmdline( argc, argv, filename ); // process command-line arguments
[b87a5ed]	150
	151	try {
[81419b5]	152	// choose to read the program from a file or stdin
[3b8e52c]	153	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	154	input = fopen( argv[ optind ], "r" );
[3b8e52c]	155	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162]	156	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	157	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	158	// prelude filename comes in differently
	159	if ( libcfap ) filename = "prelude.cf";
[b87a5ed]	160	optind += 1;
[3b8e52c]	161	} else { // no input file name
[b87a5ed]	162	input = stdin;
[2a7e29b]	163	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	164	// a fake name along
[926af74]	165	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	166	} // if
	167
[3b8e52c]	168	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
[b87a5ed]	169	output = new ofstream( argv[ optind ] );
	170	} // if
[71f4e4f]	171
[159c62e]	172	// read in the builtins, extras, and the prelude
[de62360d]	173	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	174	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[d3b7937]	175	FILE * builtins = fopen( libcfap \| treep ? "builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
[3b8e52c]	176	assertf( builtins, "cannot open builtins.cf\n" );
[81419b5]	177	parse( builtins, LinkageSpec::Compiler );
	178
[159c62e]	179	// read the extra prelude in, if not generating the cfa library
	180	FILE * extras = fopen( libcfap \| treep ? "extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	181	assertf( extras, "cannot open extras.cf\n" );
[159c62e]	182	parse( extras, LinkageSpec::C );
	183
[81419b5]	184	if ( ! libcfap ) {
[faf8857]	185	// read the prelude in, if not generating the cfa library
[d3b7937]	186	FILE * prelude = fopen( treep ? "prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	187	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	188	parse( prelude, LinkageSpec::Intrinsic );
[b87a5ed]	189	} // if
	190	} // if
[81419b5]	191
[926af74]	192	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	193
[b87a5ed]	194	if ( parsep ) {
[e6955b1]	195	parseTree->printList( cout );
[0da3e2c]	196	delete parseTree;
[b87a5ed]	197	return 0;
	198	} // if
	199
[0da3e2c]	200	buildList( parseTree, translationUnit );
	201	delete parseTree;
[cbaee0d]	202	parseTree = nullptr;
[b87a5ed]	203
	204	if ( astp ) {
[1ab4ce2]	205	dump( translationUnit );
[b87a5ed]	206	return 0;
	207	} // if
	208
[839ccbb]	209	// add the assignment statement after the initialization of a type parameter
[81419b5]	210	OPTPRINT( "validate" )
	211	SymTab::validate( translationUnit, symtabp );
	212	if ( symtabp ) {
[46f6134]	213	deleteAll( translationUnit );
[b87a5ed]	214	return 0;
	215	} // if
	216
[81419b5]	217	if ( expraltp ) {
[e6955b1]	218	ResolvExpr::AlternativePrinter printer( cout );
[81419b5]	219	acceptAll( translationUnit, printer );
[b87a5ed]	220	return 0;
	221	} // if
	222
	223	if ( validp ) {
[1ab4ce2]	224	dump( translationUnit );
[b87a5ed]	225	return 0;
	226	} // if
	227
[81419b5]	228	OPTPRINT( "mutate" )
	229	ControlStruct::mutate( translationUnit );
[71f4e4f]	230	OPTPRINT( "fixNames" )
[81419b5]	231	CodeGen::fixNames( translationUnit );
[f1e012b]	232	OPTPRINT( "tweakInit" )
[a0fdbd5]	233	InitTweak::genInit( translationUnit );
[bf32bb8]	234	OPTPRINT( "expandMemberTuples" );
	235	Tuples::expandMemberTuples( translationUnit );
[81419b5]	236	if ( libcfap ) {
	237	// generate the bodies of cfa library functions
	238	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	239	} // if
	240
[de62360d]	241	if ( bresolvep ) {
[1ab4ce2]	242	dump( translationUnit );
[de62360d]	243	return 0;
	244	} // if
	245
[81419b5]	246	OPTPRINT( "resolve" )
[b87a5ed]	247	ResolvExpr::resolve( translationUnit );
[81419b5]	248	if ( exprp ) {
[1ab4ce2]	249	dump( translationUnit );
[ca1c11f]	250	return 0;
[926af74]	251	} // if
[81419b5]	252
[f0121d7]	253	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
[aefcc3b]	254	Tuples::expandUniqueExpr( translationUnit );
	255
[71f4e4f]	256	// fix ObjectDecl - replaces ConstructorInit nodes
[6cf27a07]	257	OPTPRINT( "fixInit" )
	258	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
[ca1c11f]	259	if ( ctorinitp ) {
	260	dump ( translationUnit );
	261	return 0;
[926af74]	262	} // if
[71f4e4f]	263
[ea5daeb]	264	OPTPRINT("instantiateGenerics")
	265	GenPoly::instantiateGeneric( translationUnit );
[81419b5]	266	OPTPRINT( "copyParams" );
[b87a5ed]	267	GenPoly::copyParams( translationUnit );
[81419b5]	268	OPTPRINT( "convertSpecializations" )
[698664b3]	269	GenPoly::convertSpecializations( translationUnit );
[81419b5]	270	OPTPRINT( "convertLvalue" )
[b87a5ed]	271	GenPoly::convertLvalue( translationUnit );
[fea7ca7]	272
	273	if ( bboxp ) {
	274	dump( translationUnit );
	275	return 0;
[926af74]	276	} // if
[81419b5]	277	OPTPRINT( "box" )
[b87a5ed]	278	GenPoly::box( translationUnit );
[1132b62]	279	OPTPRINT( "expandTuples" ); // xxx - is this the right place for this?
	280	Tuples::expandTuples( translationUnit );
[81419b5]	281
[2871210]	282	// print tree right before code generation
[81419b5]	283	if ( codegenp ) {
[1ab4ce2]	284	dump( translationUnit );
[81419b5]	285	return 0;
	286	} // if
[b87a5ed]	287
[1ab4ce2]	288	CodeGen::generate( translationUnit, *output, ! noprotop );
[b87a5ed]	289
[e6955b1]	290	if ( output != &cout ) {
[b87a5ed]	291	delete output;
	292	} // if
	293	} catch ( SemanticError &e ) {
	294	if ( errorp ) {
[e6955b1]	295	cerr << "---AST at error:---" << endl;
	296	dump( translationUnit, cerr );
	297	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	298	} // if
[e6955b1]	299	e.print( cerr );
	300	if ( output != &cout ) {
[b87a5ed]	301	delete output;
	302	} // if
	303	return 1;
	304	} catch ( UnimplementedError &e ) {
[e6955b1]	305	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	306	if ( output != &cout ) {
[b87a5ed]	307	delete output;
	308	} // if
	309	return 1;
	310	} catch ( CompilerError &e ) {
[e6955b1]	311	cerr << "Compiler Error: " << e.get_what() << endl;
	312	cerr << "(please report bugs to " << endl;
	313	if ( output != &cout ) {
[b87a5ed]	314	delete output;
	315	} // if
	316	return 1;
	317	} // try
	318
[39786813]	319	deleteAll( translationUnit );
[b87a5ed]	320	return 0;
[d9a0e76]	321	} // main
[51b7345]	322
[cbaee0d]	323	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[0da3e2c]	324	enum { Ast, Bbox, Bresolver, CtorInitFix, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, Validate, };
	325
	326	static struct option long_opts[] = {
	327	{ "ast", no_argument, 0, Ast },
	328	{ "before-box", no_argument, 0, Bbox },
	329	{ "before-resolver", no_argument, 0, Bresolver },
	330	{ "ctorinitfix", no_argument, 0, CtorInitFix },
	331	{ "expr", no_argument, 0, Expr },
	332	{ "expralt", no_argument, 0, ExprAlt },
	333	{ "grammar", no_argument, 0, Grammar },
	334	{ "libcfa", no_argument, 0, LibCFA },
	335	{ "no-preamble", no_argument, 0, Nopreamble },
	336	{ "parse", no_argument, 0, Parse },
	337	{ "no-prototypes", no_argument, 0, Prototypes },
	338	{ "resolver", no_argument, 0, Resolver },
	339	{ "symbol", no_argument, 0, Symbol },
	340	{ "tree", no_argument, 0, Tree },
	341	{ "validate", no_argument, 0, Validate },
	342	{ 0, 0, 0, 0 }
	343	}; // long_opts
	344	int long_index;
	345
	346	opterr = 0; // (global) prevent getopt from printing error messages
	347
	348	int c;
	349	while ( (c = getopt_long( argc, argv, "abBcefglnpqrstvyzD:F:", long_opts, &long_index )) != -1 ) {
	350	switch ( c ) {
	351	case Ast:
	352	case 'a': // dump AST
	353	astp = true;
	354	break;
	355	case Bresolver:
	356	case 'b': // print before resolver steps
	357	bresolvep = true;
	358	break;
	359	case 'B': // print before resolver steps
	360	bboxp = true;
	361	break;
	362	case CtorInitFix:
	363	case 'c':
	364	ctorinitp = true;
	365	break;
	366	case Expr:
	367	case 'e': // dump AST after expression analysis
	368	exprp = true;
	369	break;
	370	case ExprAlt:
	371	case 'f': // print alternatives for expressions
	372	expraltp = true;
	373	break;
	374	case Grammar:
	375	case 'g': // bison debugging info (grammar rules)
[926af74]	376	yydebug = true;
[0da3e2c]	377	break;
	378	case LibCFA:
	379	case 'l': // generate libcfa.c
	380	libcfap = true;
	381	break;
	382	case Nopreamble:
	383	case 'n': // do not read preamble
	384	nopreludep = true;
	385	break;
	386	case Prototypes:
	387	case 'p': // generate prototypes for preamble functions
	388	noprotop = true;
	389	break;
	390	case Parse:
	391	case 'q': // dump parse tree
	392	parsep = true;
	393	break;
	394	case Resolver:
	395	case 'r': // print resolver steps
	396	resolvep = true;
	397	break;
	398	case Symbol:
	399	case 's': // print symbol table events
	400	symtabp = true;
	401	break;
	402	case Tree:
	403	case 't': // build in tree
	404	treep = true;
	405	break;
	406	case 'v': // dump AST after decl validation pass
	407	validp = true;
	408	break;
	409	case 'y':
	410	errorp = true;
	411	break;
	412	case 'z':
	413	codegenp = true;
	414	break;
	415	case 'D': // ignore -Dxxx
	416	break;
	417	case 'F': // source file-name without suffix
	418	filename = optarg;
	419	break;
	420	case '?':
[3b8e52c]	421	assertf( false, "Unknown option: '%c'\n", (char)optopt );
[0da3e2c]	422	default:
	423	abort();
	424	} // switch
	425	} // while
	426	} // parse_cmdline
	427
[8b7ee09]	428	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	429	extern int yyparse( void );
[cbaee0d]	430	extern FILE * yyin;
[0da3e2c]	431	extern int yylineno;
	432
[8b7ee09]	433	::linkage = linkage; // set globals
[0da3e2c]	434	yyin = input;
	435	yylineno = 1;
	436	typedefTable.enterScope();
	437	int parseStatus = yyparse();
[81419b5]	438
	439	fclose( input );
[0da3e2c]	440	if ( shouldExit \|\| parseStatus != 0 ) {
	441	exit( parseStatus );
[81419b5]	442	} // if
[0da3e2c]	443	} // parse
[81419b5]	444
[1ab4ce2]	445	static bool notPrelude( Declaration * decl ) {
	446	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	447	} // notPrelude
[1ab4ce2]	448
[e6955b1]	449	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	450	list< Declaration * > decls;
[926af74]	451
[1ab4ce2]	452	if ( noprotop ) {
[e6955b1]	453	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	454	} else {
	455	decls = translationUnit;
[926af74]	456	} // if
[1ab4ce2]	457
[f77f12e2]	458	printAll( decls, out );
[7f5566b]	459	deleteAll( translationUnit );
[0da3e2c]	460	} // dump
[1ab4ce2]	461
[51b7345]	462	// Local Variables: //
[b87a5ed]	463	// tab-width: 4 //
	464	// mode: c++ //
	465	// compile-command: "make install" //
[51b7345]	466	// End: //

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