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source: src/main.cc @ 3eb1653

ADTast-experimentalenumpthread-emulationqualifiedEnum

Last change on this file since 3eb1653 was b56ad5e, checked in by Fangren Yu <f37yu@…>, 2 years ago
Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc
Property mode set to `100644`
File size: 31.3 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	//
[3e96559]	9	// Author : Peter Buhr and Rob Schluntz
[b87a5ed]	10	// Created On : Fri May 15 23:12:02 2015
[68fe946e]	11	// Last Modified By : Andrew Beach
[a488783]	12	// Last Modified On : Wed Jan 26 14:09:00 2022
	13	// Update Count : 670
[b87a5ed]	14	//
	15
[bf2438c]	16	#include <cxxabi.h> // for __cxa_demangle
	17	#include <execinfo.h> // for backtrace, backtrace_symbols
	18	#include <getopt.h> // for no_argument, optind, geto...
[08fc48f]	19	#include <cassert> // for assertf
[bf2438c]	20	#include <cstdio> // for fopen, FILE, fclose, stdin
	21	#include <cstdlib> // for exit, free, abort, EXIT_F...
[bffcd66]	22	#include <csignal> // for signal, SIGABRT, SIGSEGV
[bf2438c]	23	#include <cstring> // for index
[be9288a]	24	#include <fstream> // for ofstream
[bf2438c]	25	#include <iostream> // for operator<<, basic_ostream
[62ce290]	26	#include <iomanip>
[bf2438c]	27	#include <iterator> // for back_inserter
	28	#include <list> // for list
[08fc48f]	29	#include <string> // for char_traits, operator<<
[e6955b1]	30
[bffcd66]	31	using namespace std;
	32
[9ea38de]	33	#include "AST/Convert.hpp"
[7f38b67a]	34	#include "CompilationState.h"
[bf2438c]	35	#include "../config.h" // for CFA_LIBDIR
	36	#include "CodeGen/FixMain.h" // for FixMain
	37	#include "CodeGen/FixNames.h" // for fixNames
	38	#include "CodeGen/Generate.h" // for generate
[aff7e86]	39	#include "CodeGen/LinkOnce.h" // for translateLinkOnce
[bf2438c]	40	#include "CodeTools/DeclStats.h" // for printDeclStats
[3b3491b]	41	#include "CodeTools/ResolvProtoDump.h" // for dumpAsResolvProto
[bf2438c]	42	#include "CodeTools/TrackLoc.h" // for fillLocations
[f57faf6f]	43	#include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
[bf2438c]	44	#include "Common/CompilerError.h" // for CompilerError
[55cbff8]	45	#include "Common/DeclStats.hpp" // for printDeclStats
	46	#include "Common/ResolvProtoDump.hpp" // for dumpAsResolverProto
[7abee38]	47	#include "Common/Stats.h"
[cbbd5b48]	48	#include "Common/PassVisitor.h"
[bf2438c]	49	#include "Common/SemanticError.h" // for SemanticError
	50	#include "Common/UnimplementedError.h" // for UnimplementedError
	51	#include "Common/utility.h" // for deleteAll, filter, printAll
[2cf3b87]	52	#include "Concurrency/Keywords.h" // for implementMutex, implement...
[9f5ecf5]	53	#include "Concurrency/Waitfor.h" // for generateWaitfor
[0c730d9]	54	#include "ControlStruct/ExceptDecl.h" // for translateExcept
[bf2438c]	55	#include "ControlStruct/ExceptTranslate.h" // for translateEHM
[b8ab91a]	56	#include "ControlStruct/FixLabels.hpp" // for fixLabels
[a488783]	57	#include "ControlStruct/HoistControlDecls.hpp" // hoistControlDecls
[bf2438c]	58	#include "ControlStruct/Mutate.h" // for mutate
	59	#include "GenPoly/Box.h" // for box
	60	#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
	61	#include "GenPoly/Lvalue.h" // for convertLvalue
	62	#include "GenPoly/Specialize.h" // for convertSpecializations
	63	#include "InitTweak/FixInit.h" // for fix
	64	#include "InitTweak/GenInit.h" // for genInit
	65	#include "MakeLibCfa.h" // for makeLibCfa
	66	#include "Parser/ParseNode.h" // for DeclarationNode, buildList
	67	#include "Parser/TypedefTable.h" // for TypedefTable
	68	#include "ResolvExpr/AlternativePrinter.h" // for AlternativePrinter
[1622af5]	69	#include "ResolvExpr/CandidatePrinter.hpp" // for printCandidates
[bf2438c]	70	#include "ResolvExpr/Resolver.h" // for resolve
	71	#include "SymTab/Validate.h" // for validate
[bffcd66]	72	#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]	73	#include "SynTree/Declaration.h" // for Declaration
	74	#include "SynTree/Visitor.h" // for acceptAll
	75	#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a488783]	76	#include "Validate/Autogen.hpp" // for autogenerateRoutines
[ce36b55]	77	#include "Validate/FindSpecialDecls.h" // for findGlobalDecls
[2cf3b87]	78	#include "Validate/CompoundLiteral.hpp" // for handleCompoundLiterals
[ce36b55]	79	#include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
	80	#include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
[a5f0529]	81	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	82
[3e96559]	83	static void NewPass( const char * const name ) {
	84	Stats::Heap::newPass( name );
[1cb7fab2]	85	using namespace Stats::Counters;
[b8665e3]	86	{
[3e96559]	87	static auto group = build<CounterGroup>( "Pass Visitor" );
	88	auto pass = build<CounterGroup>( name, group );
[b8665e3]	89	pass_visitor_stats.depth = 0;
[3e96559]	90	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
	91	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]	92	}
	93	{
[3e96559]	94	static auto group = build<CounterGroup>( "Syntax Node" );
	95	auto pass = build<CounterGroup>( name, group );
	96	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]	97	}
[675716e]	98	}
	99
[3e96559]	100	#define PASS( name, pass ) \
[ecaeac6e]	101	if ( errorp ) { cerr << name << endl; } \
[675716e]	102	NewPass(name); \
[4f97937]	103	Stats::Time::StartBlock(name); \
	104	pass; \
	105	Stats::Time::StopBlock();
[0da3e2c]	106
[8b7ee09]	107	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	108	TypedefTable typedefTable;
[cbaee0d]	109	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	110
[ef22ad6]	111	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]	112
[bffcd66]	113	static string PreludeDirector = "";
[4dcaed2]	114
[77d601f]	115	static void parse_cmdline( int argc, char * argv[] );
[8b7ee09]	116	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	117	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]	118	static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]	119
[0afffee]	120	static void backtrace( int start ) { // skip first N stack frames
[74330e7]	121	enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]	122	void * array[Frames];
[74330e7]	123	size_t size = ::backtrace( array, Frames );
[0afffee]	124	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	125
	126	*index( messages[0], '(' ) = '\0'; // find executable name
	127	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	128
[b542bfb]	129	// skip last 2 stack frames after main
[74330e7]	130	for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	131	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]	132
	133	for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]	134	if ( *p == '(' ) {
[46f6134]	135	mangled_name = p;
[0afffee]	136	} else if ( *p == '+' ) {
[e6955b1]	137	offset_begin = p;
[0afffee]	138	} else if ( *p == ')' ) {
[e6955b1]	139	offset_end = p;
	140	break;
	141	} // if
	142	} // for
	143
	144	// if line contains symbol, attempt to demangle
[b542bfb]	145	int frameNo = i - start;
[e6955b1]	146	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	147	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	148	*offset_begin++ = '\0';
	149	*offset_end++ = '\0';
	150
[0afffee]	151	int status;
[e6955b1]	152	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	153	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	154	if ( status == 0 ) { // demangling successful ?
[b542bfb]	155	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	156	<< real_name << "+" << offset_begin << offset_end << endl;
	157	} else { // otherwise, output mangled name
[b542bfb]	158	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	159	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	160	} // if
[0afffee]	161
[e6955b1]	162	free( real_name );
	163	} else { // otherwise, print the whole line
[b542bfb]	164	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	165	} // if
	166	} // for
[b542bfb]	167
[e6955b1]	168	free( messages );
[b542bfb]	169	} // backtrace
	170
[bffcd66]	171	#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
	172
[1f68d5d]	173	static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]	174	act.sa_flags = flags;
	175
	176	if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]	177	cerr << "cfa-cpp compilation error problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]	178	_exit( EXIT_FAILURE );
	179	} // if
[1f68d5d]	180	}
	181
	182	static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
	183	struct sigaction act;
	184	act.sa_sigaction = (void ()(int, siginfo_t , void *))handler;
	185	_Signal(act, sig, flags);
	186	} // Signal
	187
	188	static void Signal( int sig, void (* handler)(int), int flags ) {
	189	struct sigaction act;
	190	act.sa_handler = handler;
	191	_Signal(act, sig, flags);
[bffcd66]	192	} // Signal
	193
	194	static void sigSegvBusHandler( SIGPARMS ) {
	195	if ( sfp->si_addr == nullptr ) {
	196	cerr << "Null pointer (nullptr) dereference." << endl;
	197	} else {
	198	cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
	199	<< "Possible cause is reading outside the address space or writing to a protected area within the address space with an invalid pointer or subscript." << endl;
	200	} // if
[b542bfb]	201	backtrace( 2 ); // skip first 2 stack frames
[3e96559]	202	abort(); // cause core dump for debugging
[e6955b1]	203	} // sigSegvBusHandler
[0da3e2c]	204
[74330e7]	205	static void sigFpeHandler( SIGPARMS ) {
	206	const char * msg;
	207
	208	switch ( sfp->si_code ) {
	209	case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
	210	case FPE_FLTOVF: msg = "overflow"; break;
	211	case FPE_FLTUND: msg = "underflow"; break;
	212	case FPE_FLTRES: msg = "inexact result"; break;
	213	case FPE_FLTINV: msg = "invalid operation"; break;
	214	default: msg = "unknown";
	215	} // choose
	216	cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
	217	<< "Possible cause is constant-expression evaluation invalid." << endl;
	218	backtrace( 2 ); // skip first 2 stack frames
	219	abort(); // cause core dump for debugging
	220	} // sigFpeHandler
	221
[bffcd66]	222	static void sigAbortHandler( SIGPARMS ) {
[b542bfb]	223	backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]	224	Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]	225	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	226	} // sigAbortHandler
	227
[cbaee0d]	228	int main( int argc, char * argv[] ) {
[3b8e52c]	229	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	230	ostream * output = & cout;
[e6955b1]	231	list< Declaration * > translationUnit;
	232
[bffcd66]	233	Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
	234	Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]	235	Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]	236	Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]	237
[bffcd66]	238	// cout << "main" << endl;
[44bca7f]	239	// for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]	240	// cout << '\t' << argv[i] << endl;
[44bca7f]	241	// } // for
	242
[e0bd0f9]	243	parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]	244	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	245
[ef22ad6]	246	if ( waiting_for_gdb ) {
[bffcd66]	247	cerr << "Waiting for gdb" << endl;
	248	cerr << "run :" << endl;
	249	cerr << " gdb attach " << getpid() << endl;
[dee1f89]	250	raise(SIGSTOP);
[ef22ad6]	251	} // if
[dee1f89]	252
[b87a5ed]	253	try {
[81419b5]	254	// choose to read the program from a file or stdin
[3b8e52c]	255	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	256	input = fopen( argv[ optind ], "r" );
[e0bd0f9]	257	assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]	258	optind += 1;
[3b8e52c]	259	} else { // no input file name
[b87a5ed]	260	input = stdin;
	261	} // if
	262
[79eaeb7]	263	Stats::Time::StartGlobal();
[3c0d4cd]	264	NewPass("Parse");
	265	Stats::Time::StartBlock("Parse");
[675716e]	266
[159c62e]	267	// read in the builtins, extras, and the prelude
[de62360d]	268	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	269	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	270
[37fe352]	271	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]	272
[807ce84]	273	// Read to gcc builtins, if not generating the cfa library
[37fe352]	274	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]	275	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	276	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	277
[159c62e]	278	// read the extra prelude in, if not generating the cfa library
[37fe352]	279	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]	280	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	281	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	282
[81419b5]	283	if ( ! libcfap ) {
[faf8857]	284	// read the prelude in, if not generating the cfa library
[e523b07]	285	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
	286	assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]	287	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	288
	289	// Read to cfa builtins, if not generating the cfa library
[37fe352]	290	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]	291	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	292	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	293	} // if
	294	} // if
[81419b5]	295
[926af74]	296	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	297
[b87a5ed]	298	if ( parsep ) {
[e6955b1]	299	parseTree->printList( cout );
[0da3e2c]	300	delete parseTree;
[3e96559]	301	return EXIT_SUCCESS;
[b87a5ed]	302	} // if
	303
[0da3e2c]	304	buildList( parseTree, translationUnit );
	305	delete parseTree;
[cbaee0d]	306	parseTree = nullptr;
[b87a5ed]	307
	308	if ( astp ) {
[1ab4ce2]	309	dump( translationUnit );
[3e96559]	310	return EXIT_SUCCESS;
[b87a5ed]	311	} // if
	312
[036dd5f]	313	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
	314	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
	315	// works okay for now.
	316	CodeTools::fillLocations( translationUnit );
[3c0d4cd]	317	Stats::Time::StopBlock();
[036dd5f]	318
[0c730d9]	319	PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
[00da199]	320	if ( exdeclp ) {
	321	dump( translationUnit );
	322	return EXIT_SUCCESS;
	323	} // if
[0c730d9]	324
[839ccbb]	325	// add the assignment statement after the initialization of a type parameter
[5dcb881]	326	PASS( "Validate-A", SymTab::validate_A( translationUnit ) );
	327	PASS( "Validate-B", SymTab::validate_B( translationUnit ) );
	328	PASS( "Validate-C", SymTab::validate_C( translationUnit ) );
[b87a5ed]	329
[76b378d]	330	CodeTools::fillLocations( translationUnit );
	331
[4a8f150]	332	if( useNewAST ) {
[a488783]	333	PASS( "Apply Concurrent Keywords", Concurrency::applyKeywords( translationUnit ) );
	334	PASS( "Forall Pointer Decay", SymTab::decayForallPointers( translationUnit ) );
	335	CodeTools::fillLocations( translationUnit );
	336
[3746f777]	337	if (Stats::Counters::enabled) {
	338	ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
	339	ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
	340	}
[9ea38de]	341	auto transUnit = convert( move( translationUnit ) );
[9f5a19fa]	342
[68fe946e]	343	forceFillCodeLocations( transUnit );
	344
[a488783]	345	// Must happen before autogen routines are added.
	346	PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls( transUnit ) );
	347
	348	// Must be after enum and pointer decay.
	349	// Must be before compound literals.
	350	PASS( "Generate Autogen Routines", Validate::autogenerateRoutines( transUnit ) );
	351
[2cf3b87]	352	PASS( "Implement Mutex", Concurrency::implementMutex( transUnit ) );
	353	PASS( "Implement Thread Start", Concurrency::implementThreadStarter( transUnit ) );
	354	PASS( "Compound Literal", Validate::handleCompoundLiterals( transUnit ) );
[ce36b55]	355	PASS( "Set Length From Initializer", Validate::setLengthFromInitializer( transUnit ) );
	356	PASS( "Find Global Decls", Validate::findGlobalDecls( transUnit ) );
	357	PASS( "Fix Label Address", Validate::fixLabelAddresses( transUnit ) );
	358
[1622af5]	359	if ( symtabp ) {
	360	return EXIT_SUCCESS;
	361	} // if
	362
	363	if ( expraltp ) {
	364	ResolvExpr::printCandidates( transUnit );
	365	return EXIT_SUCCESS;
	366	} // if
	367
	368	if ( validp ) {
	369	dump( move( transUnit ) );
	370	return EXIT_SUCCESS;
	371	} // if
	372
[5ee153d]	373	PASS( "Translate Throws", ControlStruct::translateThrows( transUnit ) );
[b8ab91a]	374	PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
[0c577f7]	375	PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
[a36eb2d]	376	PASS( "Gen Init", InitTweak::genInit( transUnit ) );
[9f5a19fa]	377	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
[68fe946e]	378
[da6396f]	379	if ( libcfap ) {
	380	// Generate the bodies of cfa library functions.
	381	LibCfa::makeLibCfa( transUnit );
	382	} // if
[68fe946e]	383
	384	if ( declstatsp ) {
	385	printDeclStats( transUnit );
	386	return EXIT_SUCCESS;
	387	} // if
	388
	389	if ( bresolvep ) {
	390	dump( move( transUnit ) );
	391	return EXIT_SUCCESS;
	392	} // if
	393
	394	if ( resolvprotop ) {
[55cbff8]	395	dumpAsResolverProto( transUnit );
[68fe946e]	396	return EXIT_SUCCESS;
	397	} // if
	398
[9ea38de]	399	PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]	400	if ( exprp ) {
[e499381]	401	dump( move( transUnit ) );
[490fb92e]	402	return EXIT_SUCCESS;
	403	} // if
	404
[f57faf6f]	405	forceFillCodeLocations( transUnit );
[4a8f150]	406
[490fb92e]	407	PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[da6396f]	408
[01d433e]	409	// fix ObjectDecl - replaces ConstructorInit nodes
	410	if ( ctorinitp ) {
	411	dump( move( transUnit ) );
	412	return EXIT_SUCCESS;
	413	} // if
	414
	415	// Currently not working due to unresolved issues with UniqueExpr
	416	PASS( "Expand Unique Expr", Tuples::expandUniqueExpr( transUnit ) ); // 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
[5f3ba11]	417
	418	PASS( "Translate Tries" , ControlStruct::translateTries( transUnit ) );
	419
[9ea38de]	420	translationUnit = convert( move( transUnit ) );
[a77257be]	421	} else {
[a488783]	422	PASS( "Validate-D", SymTab::validate_D( translationUnit ) );
[2cf3b87]	423	PASS( "Validate-E", SymTab::validate_E( translationUnit ) );
[ce36b55]	424	PASS( "Validate-F", SymTab::validate_F( translationUnit ) );
	425
[1622af5]	426	if ( symtabp ) {
	427	deleteAll( translationUnit );
	428	return EXIT_SUCCESS;
	429	} // if
	430
	431	if ( expraltp ) {
	432	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
	433	acceptAll( translationUnit, printer );
	434	return EXIT_SUCCESS;
	435	} // if
	436
	437	if ( validp ) {
	438	dump( translationUnit );
	439	return EXIT_SUCCESS;
	440	} // if
	441
[5ee153d]	442	PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[b8ab91a]	443	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
[0c577f7]	444	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
[a36eb2d]	445	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
[9f5a19fa]	446	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
	447
[da6396f]	448	if ( libcfap ) {
	449	// Generate the bodies of cfa library functions.
	450	LibCfa::makeLibCfa( translationUnit );
	451	} // if
[68fe946e]	452
	453	if ( declstatsp ) {
	454	CodeTools::printDeclStats( translationUnit );
	455	deleteAll( translationUnit );
	456	return EXIT_SUCCESS;
	457	} // if
	458
	459	if ( bresolvep ) {
	460	dump( translationUnit );
	461	return EXIT_SUCCESS;
	462	} // if
	463
	464	CodeTools::fillLocations( translationUnit );
	465
	466	if ( resolvprotop ) {
	467	CodeTools::dumpAsResolvProto( translationUnit );
	468	return EXIT_SUCCESS;
	469	} // if
	470
[a77257be]	471	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]	472	if ( exprp ) {
	473	dump( translationUnit );
	474	return EXIT_SUCCESS;
	475	}
[4615ac8]	476
[490fb92e]	477	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
[81419b5]	478
[01d433e]	479	// fix ObjectDecl - replaces ConstructorInit nodes
	480	if ( ctorinitp ) {
	481	dump ( translationUnit );
	482	return EXIT_SUCCESS;
	483	} // if
[71f4e4f]	484
[01d433e]	485	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
[5f3ba11]	486
	487	PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[01d433e]	488	}
[626dbc10]	489
[5f3ba11]	490
[6edd210]	491
[675716e]	492	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]	493
[675716e]	494	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]	495
[675716e]	496	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]	497
	498	if ( tuplep ) {
	499	dump( translationUnit );
[3e96559]	500	return EXIT_SUCCESS;
	501	} // if
[141b786]	502
[675716e]	503	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]	504
[675716e]	505	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]	506	if ( genericsp ) {
	507	dump( translationUnit );
[3e96559]	508	return EXIT_SUCCESS;
	509	} // if
[b4f8808]	510
[675716e]	511	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]	512
[fea7ca7]	513	if ( bboxp ) {
	514	dump( translationUnit );
[3e96559]	515	return EXIT_SUCCESS;
[926af74]	516	} // if
[675716e]	517	PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]	518
[aff7e86]	519	PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
	520
	521	// Code has been lowered to C, now we can start generation.
	522
[8905f56]	523	if ( bcodegenp ) {
	524	dump( translationUnit );
[3e96559]	525	return EXIT_SUCCESS;
	526	} // if
[8905f56]	527
[13de47bc]	528	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	529	output = new ofstream( argv[ optind ] );
	530	} // if
[0270824]	531
[7b15d7a]	532	CodeTools::fillLocations( translationUnit );
[62ce290]	533	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]	534
[8e48fca4]	535	CodeGen::FixMain::fix( translationUnit, *output,
	536	(PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]	537	if ( output != &cout ) {
[b87a5ed]	538	delete output;
	539	} // if
[77d601f]	540	} catch ( SemanticErrorException & e ) {
[b87a5ed]	541	if ( errorp ) {
[e6955b1]	542	cerr << "---AST at error:---" << endl;
	543	dump( translationUnit, cerr );
	544	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	545	} // if
[d55d7a6]	546	e.print();
[e6955b1]	547	if ( output != &cout ) {
[b87a5ed]	548	delete output;
	549	} // if
[3e96559]	550	return EXIT_FAILURE;
[77d601f]	551	} catch ( UnimplementedError & e ) {
[e6955b1]	552	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	553	if ( output != &cout ) {
[b87a5ed]	554	delete output;
	555	} // if
[3e96559]	556	return EXIT_FAILURE;
[77d601f]	557	} catch ( CompilerError & e ) {
[e6955b1]	558	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	559	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	560	if ( output != &cout ) {
[b87a5ed]	561	delete output;
	562	} // if
[3e96559]	563	return EXIT_FAILURE;
[77d601f]	564	} catch ( std::bad_alloc & ) {
	565	cerr << "cfa-cpp compilation error std::bad_alloc" << endl;
	566	backtrace( 1 );
	567	abort();
[3e96559]	568	} catch ( ... ) {
[bffcd66]	569	exception_ptr eptr = current_exception();
[4990812]	570	try {
	571	if (eptr) {
[bffcd66]	572	rethrow_exception(eptr);
[3e96559]	573	} else {
[77d601f]	574	cerr << "cfa-cpp compilation error exception uncaught and unknown" << endl;
[3e96559]	575	} // if
[77d601f]	576	} catch( const exception & e ) {
	577	cerr << "cfa-cpp compilation error uncaught exception \"" << e.what() << "\"\n";
[3e96559]	578	} // try
	579	return EXIT_FAILURE;
	580	} // try
[b87a5ed]	581
[39786813]	582	deleteAll( translationUnit );
[1cb7fab2]	583	Stats::print();
[3e96559]	584	return EXIT_SUCCESS;
[d9a0e76]	585	} // main
[51b7345]	586
[0da3e2c]	587
[3e9de01]	588	static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]	589
[62ce290]	590	enum { PreludeDir = 128 };
[3e96559]	591	static struct option long_opts[] = {
[1a69a90]	592	{ "colors", required_argument, nullptr, 'c' },
	593	{ "gdb", no_argument, nullptr, 'g' },
[3e96559]	594	{ "help", no_argument, nullptr, 'h' },
	595	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	596	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	597	{ "no-main", no_argument, 0, 'm' },
[62ce290]	598	{ "no-linemarks", no_argument, nullptr, 'N' },
	599	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	600	{ "prototypes", no_argument, nullptr, 'p' },
[7215000]	601	{ "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]	602	{ "old-ast", no_argument, nullptr, 'O'},
	603	{ "new-ast", no_argument, nullptr, 'A'},
[62ce290]	604	{ "print", required_argument, nullptr, 'P' },
	605	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	606	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	607	{ "tree", no_argument, nullptr, 't' },
	608	{ "", no_argument, nullptr, 0 }, // -w
	609	{ "", no_argument, nullptr, 0 }, // -W
	610	{ "", no_argument, nullptr, 0 }, // -D
	611	{ nullptr, 0, nullptr, 0 }
	612	}; // long_opts
	613
	614	static const char * description[] = {
[aa88cb9a]	615	"diagnostic color: never, always, auto", // -c
[3e9de01]	616	"wait for gdb to attach", // -g
[aa88cb9a]	617	"print translator help message", // -h
[3e9de01]	618	"generate libcfa.c", // -l
	619	"generate line marks", // -L
	620	"do not replace main", // -m
	621	"do not generate line marks", // -N
	622	"do not read prelude", // -n
[aa88cb9a]	623	"do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]	624	"only print deterministic output", // -d
	625	"Use the old-ast", // -O
	626	"Use the new-ast", // -A
	627	"print", // -P
[62ce290]	628	"<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]	629	"<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]	630	"building cfa standard lib", // -t
	631	"", // -w
	632	"", // -W
	633	"", // -D
[3e96559]	634	}; // description
	635
[0c0f548]	636	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	637
	638	static struct Printopts {
	639	const char * name;
	640	int & flag;
	641	int val;
	642	const char * descript;
	643	} printopts[] = {
[0e464f6]	644	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
	645	{ "asterr", errorp, true, "print AST on error" },
[62ce290]	646	{ "declstats", declstatsp, true, "code property statistics" },
	647	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	648	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	649	{ "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]	650	{ "rsteps", resolvep, true, "print resolver steps" },
	651	{ "tree", parsep, true, "print parse tree" },
	652	// code dumps
	653	{ "ast", astp, true, "print AST after parsing" },
[00da199]	654	{ "exdecl", exdeclp, true, "print AST after translating exception decls" },
[0e464f6]	655	{ "symevt", symtabp, true, "print AST after symbol table events" },
	656	{ "altexpr", expraltp, true, "print alternatives for expressions" },
	657	{ "astdecl", validp, true, "print AST after declaration validation pass" },
	658	{ "resolver", bresolvep, true, "print AST before resolver step" },
	659	{ "astexpr", exprp, true, "print AST after expression analysis" },
	660	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
	661	{ "tuple", tuplep, true, "print AST after tuple expansion" },
	662	{ "astgen", genericsp, true, "print AST after instantiate generics" },
	663	{ "box", bboxp, true, "print AST before box step" },
	664	{ "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]	665	};
	666	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	667
[77d601f]	668	static void usage( char * argv[] ) {
[e0bd0f9]	669	cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]	670	int i = 0, j = 1; // j skips starting colon
	671	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	672	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	673	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	674	cout << " -" << optstring[j] << ",";
	675	} else { // no flag
	676	j -= 1; // compensate
	677	cout << " ";
	678	} // if
	679	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	680	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	681	cout << "one of: " << endl;
	682	for ( int i = 0; i < printoptsSize; i += 1 ) {
	683	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	684	} // for
	685	} else {
	686	cout << description[i] << endl;
	687	} // if
[3e96559]	688	} // if
[62ce290]	689	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	690	} // for
	691	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	692	exit( EXIT_FAILURE );
	693	} // usage
	694
[e0bd0f9]	695	static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]	696	opterr = 0; // (global) prevent getopt from printing error messages
	697
[c5e5109]	698	bool Wsuppress = false, Werror = false;
[0da3e2c]	699	int c;
[3e96559]	700	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	701	switch ( c ) {
[1a69a90]	702	case 'c': // diagnostic colors
	703	if ( strcmp( optarg, "always" ) == 0 ) {
	704	ErrorHelpers::colors = ErrorHelpers::Colors::Always;
	705	} else if ( strcmp( optarg, "never" ) == 0 ) {
	706	ErrorHelpers::colors = ErrorHelpers::Colors::Never;
	707	} else if ( strcmp( optarg, "auto" ) == 0 ) {
	708	ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
	709	} // if
	710	break;
[3e96559]	711	case 'h': // help message
	712	usage( argv ); // no return
[53d3ab4b]	713	break;
[3e96559]	714	case 'l': // generate libcfa.c
[0da3e2c]	715	libcfap = true;
	716	break;
[62ce290]	717	case 'L': // generate line marks
[6de43b6]	718	linemarks = true;
[c850687]	719	break;
[3e96559]	720	case 'm': // do not replace main
	721	nomainp = true;
[0da3e2c]	722	break;
[62ce290]	723	case 'N': // do not generate line marks
[6de43b6]	724	linemarks = false;
[c59bde6]	725	break;
[62ce290]	726	case 'n': // do not read prelude
[3e96559]	727	nopreludep = true;
[0da3e2c]	728	break;
[62ce290]	729	case 'p': // generate prototypes for prelude functions
	730	genproto = true;
[0da3e2c]	731	break;
[7215000]	732	case 'd': // don't print non-deterministic output
[a77257be]	733	deterministic_output = true;
	734	break;
	735	case 'O': // don't print non-deterministic output
	736	useNewAST = false;
	737	break;
	738	case 'A': // don't print non-deterministic output
	739	useNewAST = true;
[7215000]	740	break;
[62ce290]	741	case 'P': // print options
	742	for ( int i = 0;; i += 1 ) {
	743	if ( i == printoptsSize ) {
	744	cout << "Unknown --print option " << optarg << endl;
	745	goto Default;
	746	} // if
	747	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	748	printopts[i].flag = printopts[i].val;
	749	break;
	750	} // if
	751	} // for
[0da3e2c]	752	break;
[62ce290]	753	case PreludeDir: // prelude directory for debug/nodebug, hidden
	754	PreludeDirector = optarg;
[3b3491b]	755	break;
[3e96559]	756	case 'S': // enable profiling information, argument comma separated list of names
	757	Stats::parse_params( optarg );
[ebcc940]	758	break;
[dee1f89]	759	case 't': // building cfa stdlib
[0da3e2c]	760	treep = true;
	761	break;
[dee1f89]	762	case 'g': // wait for gdb
	763	waiting_for_gdb = true;
	764	break;
[3e96559]	765	case 'w': // suppress all warnings, hidden
[c5e5109]	766	Wsuppress = true;
[44bca7f]	767	break;
[3e96559]	768	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	769	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	770	SemanticWarning_EnableAll();
[44bca7f]	771	} else if ( strcmp( optarg, "error" ) == 0 ) {
	772	Werror = true;
	773	} else {
	774	char * warning = optarg;
	775	Severity s;
	776	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	777	warning += 3;
	778	s = Severity::Suppress;
	779	} else {
	780	s = Severity::Warn;
	781	} // if
[68e9ace]	782	SemanticWarning_Set( warning, s );
[44bca7f]	783	} // if
	784	break;
[3e96559]	785	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	786	break;
[3e96559]	787	case '?': // unknown option
	788	if ( optopt ) { // short option ?
	789	cout << "Unknown option -" << (char)optopt << endl;
	790	} else {
	791	cout << "Unknown option " << argv[optind - 1] << endl;
	792	} // if
	793	goto Default;
	794	case ':': // missing option
[ae47a23]	795	if ( optopt ) { // short option ?
[3e96559]	796	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	797	} else {
[3e96559]	798	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	799	} // if
[3e96559]	800	goto Default;
	801	Default:
	802	default:
	803	usage( argv ); // no return
[0da3e2c]	804	} // switch
	805	} // while
[44bca7f]	806
	807	if ( Werror ) {
[68e9ace]	808	SemanticWarning_WarningAsError();
[44bca7f]	809	} // if
[c5e5109]	810	if ( Wsuppress ) {
	811	SemanticWarning_SuppressAll();
	812	} // if
[44bca7f]	813	// for ( const auto w : WarningFormats ) {
	814	// cout << w.name << ' ' << (int)w.severity << endl;
	815	// } // for
[0da3e2c]	816	} // parse_cmdline
	817
[8b7ee09]	818	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	819	extern int yyparse( void );
[cbaee0d]	820	extern FILE * yyin;
[0da3e2c]	821	extern int yylineno;
	822
[8b7ee09]	823	::linkage = linkage; // set globals
[0da3e2c]	824	yyin = input;
	825	yylineno = 1;
	826	int parseStatus = yyparse();
[81419b5]	827
	828	fclose( input );
[0da3e2c]	829	if ( shouldExit \|\| parseStatus != 0 ) {
	830	exit( parseStatus );
[81419b5]	831	} // if
[0da3e2c]	832	} // parse
[81419b5]	833
[1ab4ce2]	834	static bool notPrelude( Declaration * decl ) {
	835	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	836	} // notPrelude
[1ab4ce2]	837
[e6955b1]	838	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	839	list< Declaration * > decls;
[926af74]	840
[62ce290]	841	if ( genproto ) {
[e6955b1]	842	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	843	} else {
	844	decls = translationUnit;
[926af74]	845	} // if
[1ab4ce2]	846
[e39241b]	847	// depending on commandline options, either generate code or dump the AST
	848	if ( codegenp ) {
[62ce290]	849	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	850	} else {
	851	printAll( decls, out );
[3e96559]	852	} // if
[7f5566b]	853	deleteAll( translationUnit );
[0da3e2c]	854	} // dump
[1ab4ce2]	855
[e499381]	856	static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
	857	std::list< Declaration * > translationUnit = convert( move( transUnit ) );
	858	dump( translationUnit, out );
	859	}
	860
[51b7345]	861	// Local Variables: //
[b87a5ed]	862	// tab-width: 4 //
	863	// mode: c++ //
	864	// compile-command: "make install" //
[51b7345]	865	// End: //

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