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source: src/main.cc @ b13fc10

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 b13fc10 was e39241b, checked in by Rob Schluntz <rschlunt@…>, 8 years ago
allow codegen as an alternative to AST dump after any pass with the -z option
Property mode set to `100644`
File size: 15.1 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"
[64adb03]	34	#include "Concurrency/Keywords.h"
[51b7345]	35	#include "CodeGen/Generate.h"
	36	#include "CodeGen/FixNames.h"
[13de47bc]	37	#include "CodeGen/FixMain.h"
[41a7137]	38	#include "CodeTools/DeclStats.h"
[51b7345]	39	#include "ControlStruct/Mutate.h"
	40	#include "SymTab/Validate.h"
	41	#include "ResolvExpr/AlternativePrinter.h"
	42	#include "ResolvExpr/Resolver.h"
	43	#include "MakeLibCfa.h"
[a0fdbd5]	44	#include "InitTweak/GenInit.h"
[71f4e4f]	45	#include "InitTweak/FixInit.h"
[d3b7937]	46	#include "Common/UnimplementedError.h"
[51b7345]	47	#include "../config.h"
[6eb8948]	48	#include "Tuples/Tuples.h"
[51b7345]	49
	50	using namespace std;
	51
[e6955b1]	52	#define OPTPRINT(x) if ( errorp ) cerr << x << endl;
[81419b5]	53
[0da3e2c]	54
[8b7ee09]	55	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	56	TypedefTable typedefTable;
[cbaee0d]	57	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	58
[926af74]	59	extern int yydebug; // set for -g flag (Grammar)
[b87a5ed]	60	bool
	61	astp = false,
[de62360d]	62	bresolvep = false,
[fea7ca7]	63	bboxp = false,
[ca1c11f]	64	ctorinitp = false,
[41a7137]	65	declstatsp = false,
[b87a5ed]	66	exprp = false,
	67	expraltp = false,
	68	libcfap = false,
[de62360d]	69	nopreludep = false,
[1ab4ce2]	70	noprotop = false,
[3fe34ae]	71	nomainp = false,
[de62360d]	72	parsep = false,
[b87a5ed]	73	resolvep = false, // used in AlternativeFinder
	74	symtabp = false,
[d3b7937]	75	treep = false,
[626dbc10]	76	tuplep = false,
[b87a5ed]	77	validp = false,
[de62360d]	78	errorp = false,
[35b1bf4]	79	codegenp = false,
	80	prettycodegenp = false;
[b87a5ed]	81
[926af74]	82	static void parse_cmdline( int argc, char argv[], const char & filename );
[8b7ee09]	83	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	84	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
	85
[0afffee]	86	static void backtrace( int start ) { // skip first N stack frames
[e6955b1]	87	enum { Frames = 50 };
	88	void * array[Frames];
[0afffee]	89	int size = ::backtrace( array, Frames );
	90	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	91
	92	*index( messages[0], '(' ) = '\0'; // find executable name
	93	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	94
[b542bfb]	95	// skip last 2 stack frames after main
	96	for ( int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	97	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
	98	for ( char p = messages[i]; p; ++p ) { // find parantheses and +offset
[0afffee]	99	if ( *p == '(' ) {
[46f6134]	100	mangled_name = p;
[0afffee]	101	} else if ( *p == '+' ) {
[e6955b1]	102	offset_begin = p;
[0afffee]	103	} else if ( *p == ')' ) {
[e6955b1]	104	offset_end = p;
	105	break;
	106	} // if
	107	} // for
	108
	109	// if line contains symbol, attempt to demangle
[b542bfb]	110	int frameNo = i - start;
[e6955b1]	111	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	112	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	113	*offset_begin++ = '\0';
	114	*offset_end++ = '\0';
	115
[0afffee]	116	int status;
[e6955b1]	117	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	118	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	119	if ( status == 0 ) { // demangling successful ?
[b542bfb]	120	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	121	<< real_name << "+" << offset_begin << offset_end << endl;
	122	} else { // otherwise, output mangled name
[b542bfb]	123	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	124	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	125	} // if
[0afffee]	126
[e6955b1]	127	free( real_name );
	128	} else { // otherwise, print the whole line
[b542bfb]	129	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	130	} // if
	131	} // for
[b542bfb]	132
[e6955b1]	133	free( messages );
[b542bfb]	134	} // backtrace
	135
	136	void sigSegvBusHandler( int sig_num ) {
	137	cerr << "CFA runtime error program cfa-cpp terminated with "
	138	<< (sig_num == SIGSEGV ? "segment fault" : "bus error")
[0afffee]	139	<< "." << endl;
[b542bfb]	140	backtrace( 2 ); // skip first 2 stack frames
[e6955b1]	141	exit( EXIT_FAILURE );
	142	} // sigSegvBusHandler
[0da3e2c]	143
[b542bfb]	144	void sigAbortHandler( int sig_num ) {
	145	backtrace( 6 ); // skip first 6 stack frames
	146	signal( SIGABRT, SIG_DFL); // reset default signal handler
	147	raise( SIGABRT ); // reraise SIGABRT
	148	} // sigAbortHandler
	149
	150
[cbaee0d]	151	int main( int argc, char * argv[] ) {
[3b8e52c]	152	FILE * input; // use FILE rather than istream because yyin is FILE
[e6955b1]	153	ostream *output = & cout;
[926af74]	154	const char *filename = nullptr;
[e6955b1]	155	list< Declaration * > translationUnit;
	156
	157	signal( SIGSEGV, sigSegvBusHandler );
	158	signal( SIGBUS, sigSegvBusHandler );
[b542bfb]	159	signal( SIGABRT, sigAbortHandler );
[b87a5ed]	160
[0da3e2c]	161	parse_cmdline( argc, argv, filename ); // process command-line arguments
[13de47bc]	162	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	163
	164	try {
[81419b5]	165	// choose to read the program from a file or stdin
[3b8e52c]	166	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	167	input = fopen( argv[ optind ], "r" );
[3b8e52c]	168	assertf( input, "cannot open %s\n", argv[ optind ] );
[d029162e]	169	// if running cfa-cpp directly, might forget to pass -F option (and really shouldn't have to)
[926af74]	170	if ( filename == nullptr ) filename = argv[ optind ];
[37024fd]	171	// prelude filename comes in differently
	172	if ( libcfap ) filename = "prelude.cf";
[b87a5ed]	173	optind += 1;
[3b8e52c]	174	} else { // no input file name
[b87a5ed]	175	input = stdin;
[2a7e29b]	176	// if running cfa-cpp directly, might forget to pass -F option. Since this takes from stdin, pass
	177	// a fake name along
[926af74]	178	if ( filename == nullptr ) filename = "stdin";
[b87a5ed]	179	} // if
	180
[159c62e]	181	// read in the builtins, extras, and the prelude
[de62360d]	182	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	183	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[375a068]	184	FILE * builtins = fopen( libcfap \| treep ? "../prelude/builtins.cf" : CFA_LIBDIR "/builtins.cf", "r" );
[3b8e52c]	185	assertf( builtins, "cannot open builtins.cf\n" );
[81419b5]	186	parse( builtins, LinkageSpec::Compiler );
	187
[159c62e]	188	// read the extra prelude in, if not generating the cfa library
[375a068]	189	FILE * extras = fopen( libcfap \| treep ? "../prelude/extras.cf" : CFA_LIBDIR "/extras.cf", "r" );
[3b8e52c]	190	assertf( extras, "cannot open extras.cf\n" );
[159c62e]	191	parse( extras, LinkageSpec::C );
	192
[81419b5]	193	if ( ! libcfap ) {
[faf8857]	194	// read the prelude in, if not generating the cfa library
[375a068]	195	FILE * prelude = fopen( treep ? "../prelude/prelude.cf" : CFA_LIBDIR "/prelude.cf", "r" );
[3b8e52c]	196	assertf( prelude, "cannot open prelude.cf\n" );
[35304009]	197	parse( prelude, LinkageSpec::Intrinsic );
[b87a5ed]	198	} // if
	199	} // if
[81419b5]	200
[926af74]	201	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	202
[b87a5ed]	203	if ( parsep ) {
[e6955b1]	204	parseTree->printList( cout );
[0da3e2c]	205	delete parseTree;
[b87a5ed]	206	return 0;
	207	} // if
	208
[0da3e2c]	209	buildList( parseTree, translationUnit );
	210	delete parseTree;
[cbaee0d]	211	parseTree = nullptr;
[b87a5ed]	212
	213	if ( astp ) {
[1ab4ce2]	214	dump( translationUnit );
[b87a5ed]	215	return 0;
	216	} // if
	217
[bcda04c]	218	// OPTPRINT( "Concurrency" )
	219	// Concurrency::applyKeywords( translationUnit );
	220
[839ccbb]	221	// add the assignment statement after the initialization of a type parameter
[81419b5]	222	OPTPRINT( "validate" )
	223	SymTab::validate( translationUnit, symtabp );
	224	if ( symtabp ) {
[46f6134]	225	deleteAll( translationUnit );
[b87a5ed]	226	return 0;
	227	} // if
	228
[81419b5]	229	if ( expraltp ) {
[e6955b1]	230	ResolvExpr::AlternativePrinter printer( cout );
[81419b5]	231	acceptAll( translationUnit, printer );
[b87a5ed]	232	return 0;
	233	} // if
	234
	235	if ( validp ) {
[1ab4ce2]	236	dump( translationUnit );
[b87a5ed]	237	return 0;
	238	} // if
	239
[81419b5]	240	OPTPRINT( "mutate" )
	241	ControlStruct::mutate( translationUnit );
[71f4e4f]	242	OPTPRINT( "fixNames" )
[81419b5]	243	CodeGen::fixNames( translationUnit );
[ef42b143]	244	OPTPRINT( "genInit" )
[a0fdbd5]	245	InitTweak::genInit( translationUnit );
[bf32bb8]	246	OPTPRINT( "expandMemberTuples" );
	247	Tuples::expandMemberTuples( translationUnit );
[81419b5]	248	if ( libcfap ) {
	249	// generate the bodies of cfa library functions
	250	LibCfa::makeLibCfa( translationUnit );
[b87a5ed]	251	} // if
	252
[fa2de95]	253	if ( declstatsp ) {
	254	CodeTools::printDeclStats( translationUnit );
	255	deleteAll( translationUnit );
	256	return 0;
	257	}
	258
[de62360d]	259	if ( bresolvep ) {
[1ab4ce2]	260	dump( translationUnit );
[de62360d]	261	return 0;
	262	} // if
	263
[81419b5]	264	OPTPRINT( "resolve" )
[b87a5ed]	265	ResolvExpr::resolve( translationUnit );
[81419b5]	266	if ( exprp ) {
[1ab4ce2]	267	dump( translationUnit );
[ca1c11f]	268	return 0;
[926af74]	269	} // if
[81419b5]	270
[71f4e4f]	271	// fix ObjectDecl - replaces ConstructorInit nodes
[6cf27a07]	272	OPTPRINT( "fixInit" )
	273	InitTweak::fix( translationUnit, filename, libcfap \|\| treep );
[ca1c11f]	274	if ( ctorinitp ) {
	275	dump ( translationUnit );
	276	return 0;
[926af74]	277	} // if
[71f4e4f]	278
[141b786]	279	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
	280	Tuples::expandUniqueExpr( translationUnit );
[626dbc10]	281
	282	OPTPRINT( "convertSpecializations" ) // needs to happen before tuple types are expanded
	283	GenPoly::convertSpecializations( translationUnit );
	284
[d9fa60a]	285	OPTPRINT( "expandTuples" ); // xxx - is this the right place for this?
	286	Tuples::expandTuples( translationUnit );
[626dbc10]	287	if ( tuplep ) {
	288	dump( translationUnit );
	289	return 0;
	290	}
[141b786]	291
[ea5daeb]	292	OPTPRINT("instantiateGenerics")
	293	GenPoly::instantiateGeneric( translationUnit );
[81419b5]	294	OPTPRINT( "copyParams" );
[b87a5ed]	295	GenPoly::copyParams( translationUnit );
[81419b5]	296	OPTPRINT( "convertLvalue" )
[b87a5ed]	297	GenPoly::convertLvalue( translationUnit );
[fea7ca7]	298
	299	if ( bboxp ) {
	300	dump( translationUnit );
	301	return 0;
[926af74]	302	} // if
[81419b5]	303	OPTPRINT( "box" )
[b87a5ed]	304	GenPoly::box( translationUnit );
[81419b5]	305
[13de47bc]	306	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	307	output = new ofstream( argv[ optind ] );
	308	} // if
[0270824]	309
[e39241b]	310	CodeGen::generate( translationUnit, *output, ! noprotop, prettycodegenp, true );
[0270824]	311
[13de47bc]	312	CodeGen::FixMain::fix( *output, treep ? "../prelude/bootloader.c" : CFA_LIBDIR "/bootloader.c" );
[0270824]	313
[e6955b1]	314	if ( output != &cout ) {
[b87a5ed]	315	delete output;
	316	} // if
	317	} catch ( SemanticError &e ) {
	318	if ( errorp ) {
[e6955b1]	319	cerr << "---AST at error:---" << endl;
	320	dump( translationUnit, cerr );
	321	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	322	} // if
[e6955b1]	323	e.print( cerr );
	324	if ( output != &cout ) {
[b87a5ed]	325	delete output;
	326	} // if
	327	return 1;
	328	} catch ( UnimplementedError &e ) {
[e6955b1]	329	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	330	if ( output != &cout ) {
[b87a5ed]	331	delete output;
	332	} // if
	333	return 1;
	334	} catch ( CompilerError &e ) {
[e6955b1]	335	cerr << "Compiler Error: " << e.get_what() << endl;
	336	cerr << "(please report bugs to " << endl;
	337	if ( output != &cout ) {
[b87a5ed]	338	delete output;
	339	} // if
	340	return 1;
	341	} // try
	342
[39786813]	343	deleteAll( translationUnit );
[b87a5ed]	344	return 0;
[d9a0e76]	345	} // main
[51b7345]	346
[cbaee0d]	347	void parse_cmdline( int argc, char * argv[], const char *& filename ) {
[41a7137]	348	enum { Ast, Bbox, Bresolver, CtorInitFix, DeclStats, Expr, ExprAlt, Grammar, LibCFA, Nopreamble, Parse, Prototypes, Resolver, Symbol, Tree, TupleExpansion, Validate, };
[0da3e2c]	349
	350	static struct option long_opts[] = {
	351	{ "ast", no_argument, 0, Ast },
	352	{ "before-box", no_argument, 0, Bbox },
	353	{ "before-resolver", no_argument, 0, Bresolver },
	354	{ "ctorinitfix", no_argument, 0, CtorInitFix },
[41a7137]	355	{ "decl-stats", no_argument, 0, DeclStats },
[0da3e2c]	356	{ "expr", no_argument, 0, Expr },
	357	{ "expralt", no_argument, 0, ExprAlt },
	358	{ "grammar", no_argument, 0, Grammar },
	359	{ "libcfa", no_argument, 0, LibCFA },
	360	{ "no-preamble", no_argument, 0, Nopreamble },
	361	{ "parse", no_argument, 0, Parse },
	362	{ "no-prototypes", no_argument, 0, Prototypes },
	363	{ "resolver", no_argument, 0, Resolver },
	364	{ "symbol", no_argument, 0, Symbol },
	365	{ "tree", no_argument, 0, Tree },
[626dbc10]	366	{ "tuple-expansion", no_argument, 0, TupleExpansion },
[0da3e2c]	367	{ "validate", no_argument, 0, Validate },
	368	{ 0, 0, 0, 0 }
	369	}; // long_opts
	370	int long_index;
	371
	372	opterr = 0; // (global) prevent getopt from printing error messages
	373
	374	int c;
[35b1bf4]	375	while ( (c = getopt_long( argc, argv, "abBcdefglmnpqrstTvyzZD:F:", long_opts, &long_index )) != -1 ) {
[0da3e2c]	376	switch ( c ) {
	377	case Ast:
	378	case 'a': // dump AST
	379	astp = true;
	380	break;
	381	case Bresolver:
	382	case 'b': // print before resolver steps
	383	bresolvep = true;
	384	break;
[626dbc10]	385	case 'B': // print before box steps
[0da3e2c]	386	bboxp = true;
	387	break;
	388	case CtorInitFix:
[e39241b]	389	case 'c': // print after constructors and destructors are replaced
[0da3e2c]	390	ctorinitp = true;
	391	break;
[41a7137]	392	case DeclStats:
	393	case 'd':
	394	declstatsp = true;
	395	break;
[0da3e2c]	396	case Expr:
	397	case 'e': // dump AST after expression analysis
	398	exprp = true;
	399	break;
	400	case ExprAlt:
	401	case 'f': // print alternatives for expressions
	402	expraltp = true;
	403	break;
	404	case Grammar:
	405	case 'g': // bison debugging info (grammar rules)
[926af74]	406	yydebug = true;
[0da3e2c]	407	break;
	408	case LibCFA:
	409	case 'l': // generate libcfa.c
	410	libcfap = true;
	411	break;
	412	case Nopreamble:
	413	case 'n': // do not read preamble
	414	nopreludep = true;
	415	break;
	416	case Prototypes:
	417	case 'p': // generate prototypes for preamble functions
	418	noprotop = true;
	419	break;
[3fe34ae]	420	case 'm': // don't replace the main
	421	nomainp = true;
	422	break;
[0da3e2c]	423	case Parse:
	424	case 'q': // dump parse tree
	425	parsep = true;
	426	break;
	427	case Resolver:
	428	case 'r': // print resolver steps
	429	resolvep = true;
	430	break;
	431	case Symbol:
	432	case 's': // print symbol table events
	433	symtabp = true;
	434	break;
	435	case Tree:
	436	case 't': // build in tree
	437	treep = true;
	438	break;
[626dbc10]	439	case TupleExpansion:
	440	case 'T': // print after tuple expansion
	441	tuplep = true;
	442	break;
[0da3e2c]	443	case 'v': // dump AST after decl validation pass
	444	validp = true;
	445	break;
[e39241b]	446	case 'y': // dump AST on error
[0da3e2c]	447	errorp = true;
	448	break;
[e39241b]	449	case 'z': // dump as codegen rather than AST
[0da3e2c]	450	codegenp = true;
[e39241b]	451	break;
	452	case 'Z': // prettyprint during codegen (i.e. print unmangled names, etc.)
[35b1bf4]	453	prettycodegenp = true;
[0da3e2c]	454	break;
	455	case 'D': // ignore -Dxxx
	456	break;
	457	case 'F': // source file-name without suffix
	458	filename = optarg;
	459	break;
	460	case '?':
[3b8e52c]	461	assertf( false, "Unknown option: '%c'\n", (char)optopt );
[0da3e2c]	462	default:
	463	abort();
	464	} // switch
	465	} // while
	466	} // parse_cmdline
	467
[8b7ee09]	468	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	469	extern int yyparse( void );
[cbaee0d]	470	extern FILE * yyin;
[0da3e2c]	471	extern int yylineno;
	472
[8b7ee09]	473	::linkage = linkage; // set globals
[0da3e2c]	474	yyin = input;
	475	yylineno = 1;
	476	typedefTable.enterScope();
	477	int parseStatus = yyparse();
[81419b5]	478
	479	fclose( input );
[0da3e2c]	480	if ( shouldExit \|\| parseStatus != 0 ) {
	481	exit( parseStatus );
[81419b5]	482	} // if
[0da3e2c]	483	} // parse
[81419b5]	484
[1ab4ce2]	485	static bool notPrelude( Declaration * decl ) {
	486	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	487	} // notPrelude
[1ab4ce2]	488
[e6955b1]	489	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	490	list< Declaration * > decls;
[926af74]	491
[1ab4ce2]	492	if ( noprotop ) {
[e6955b1]	493	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	494	} else {
	495	decls = translationUnit;
[926af74]	496	} // if
[1ab4ce2]	497
[e39241b]	498	// depending on commandline options, either generate code or dump the AST
	499	if ( codegenp ) {
	500	CodeGen::generate( decls, out, ! noprotop, prettycodegenp );
	501	} else {
	502	printAll( decls, out );
	503	}
[7f5566b]	504	deleteAll( translationUnit );
[0da3e2c]	505	} // dump
[1ab4ce2]	506
[51b7345]	507	// Local Variables: //
[b87a5ed]	508	// tab-width: 4 //
	509	// mode: c++ //
	510	// compile-command: "make install" //
[51b7345]	511	// End: //

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