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source: src/main.cc @ 4cb1a24

ADTast-experimentalpthread-emulationqualifiedEnum

Last change on this file since 4cb1a24 was 298fe57, checked in by Andrew Beach <ajbeach@…>, 2 years ago
Translated 3/4 of validate_B. Link Reference To Types has been removed and will be translated after we know how much support we need for forall function pointers.
Property mode set to `100644`
File size: 32.9 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
[298fe57]	12	// Last Modified On : Fri Apr 29 9:52:00 2022
	13	// Update Count : 673
[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
[298fe57]	77	#include "Validate/CompoundLiteral.hpp" // for handleCompoundLiterals
	78	#include "Validate/EliminateTypedef.hpp" // for eliminateTypedef
[ce36b55]	79	#include "Validate/FindSpecialDecls.h" // for findGlobalDecls
[298fe57]	80	#include "Validate/FixQualifiedTypes.hpp" // for fixQualifiedTypes
[9490621]	81	#include "Validate/ForallPointerDecay.hpp" // for decayForallPointers
[298fe57]	82	#include "Validate/GenericParameter.hpp" // for fillGenericParameters, tr...
	83	#include "Validate/HoistStruct.hpp" // for hoistStruct
[ce36b55]	84	#include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
	85	#include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
[298fe57]	86	#include "Validate/LinkReferenceToTypes.hpp"// for linkReferenceToTypes
[4ec9513]	87	#include "Validate/ReturnCheck.hpp" // for checkReturnStatements
[a5f0529]	88	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	89
[3e96559]	90	static void NewPass( const char * const name ) {
	91	Stats::Heap::newPass( name );
[1cb7fab2]	92	using namespace Stats::Counters;
[b8665e3]	93	{
[3e96559]	94	static auto group = build<CounterGroup>( "Pass Visitor" );
	95	auto pass = build<CounterGroup>( name, group );
[b8665e3]	96	pass_visitor_stats.depth = 0;
[3e96559]	97	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
	98	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]	99	}
	100	{
[3e96559]	101	static auto group = build<CounterGroup>( "Syntax Node" );
	102	auto pass = build<CounterGroup>( name, group );
	103	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]	104	}
[675716e]	105	}
	106
[3e96559]	107	#define PASS( name, pass ) \
[ecaeac6e]	108	if ( errorp ) { cerr << name << endl; } \
[675716e]	109	NewPass(name); \
[4f97937]	110	Stats::Time::StartBlock(name); \
	111	pass; \
	112	Stats::Time::StopBlock();
[0da3e2c]	113
[8b7ee09]	114	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	115	TypedefTable typedefTable;
[cbaee0d]	116	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	117
[ef22ad6]	118	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]	119
[bffcd66]	120	static string PreludeDirector = "";
[4dcaed2]	121
[77d601f]	122	static void parse_cmdline( int argc, char * argv[] );
[8b7ee09]	123	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	124	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]	125	static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]	126
[0afffee]	127	static void backtrace( int start ) { // skip first N stack frames
[74330e7]	128	enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]	129	void * array[Frames];
[74330e7]	130	size_t size = ::backtrace( array, Frames );
[0afffee]	131	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	132
	133	*index( messages[0], '(' ) = '\0'; // find executable name
	134	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	135
[b542bfb]	136	// skip last 2 stack frames after main
[74330e7]	137	for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	138	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]	139
	140	for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]	141	if ( *p == '(' ) {
[46f6134]	142	mangled_name = p;
[0afffee]	143	} else if ( *p == '+' ) {
[e6955b1]	144	offset_begin = p;
[0afffee]	145	} else if ( *p == ')' ) {
[e6955b1]	146	offset_end = p;
	147	break;
	148	} // if
	149	} // for
	150
	151	// if line contains symbol, attempt to demangle
[b542bfb]	152	int frameNo = i - start;
[e6955b1]	153	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	154	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	155	*offset_begin++ = '\0';
	156	*offset_end++ = '\0';
	157
[0afffee]	158	int status;
[e6955b1]	159	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	160	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	161	if ( status == 0 ) { // demangling successful ?
[b542bfb]	162	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	163	<< real_name << "+" << offset_begin << offset_end << endl;
	164	} else { // otherwise, output mangled name
[b542bfb]	165	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	166	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	167	} // if
[0afffee]	168
[e6955b1]	169	free( real_name );
	170	} else { // otherwise, print the whole line
[b542bfb]	171	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	172	} // if
	173	} // for
[b542bfb]	174
[e6955b1]	175	free( messages );
[b542bfb]	176	} // backtrace
	177
[bffcd66]	178	#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
	179
[1f68d5d]	180	static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]	181	act.sa_flags = flags;
	182
	183	if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]	184	cerr << "cfa-cpp compilation error problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]	185	_exit( EXIT_FAILURE );
	186	} // if
[1f68d5d]	187	}
	188
	189	static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
	190	struct sigaction act;
	191	act.sa_sigaction = (void ()(int, siginfo_t , void *))handler;
	192	_Signal(act, sig, flags);
	193	} // Signal
	194
	195	static void Signal( int sig, void (* handler)(int), int flags ) {
	196	struct sigaction act;
	197	act.sa_handler = handler;
	198	_Signal(act, sig, flags);
[bffcd66]	199	} // Signal
	200
	201	static void sigSegvBusHandler( SIGPARMS ) {
	202	if ( sfp->si_addr == nullptr ) {
	203	cerr << "Null pointer (nullptr) dereference." << endl;
	204	} else {
	205	cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
	206	<< "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;
	207	} // if
[b542bfb]	208	backtrace( 2 ); // skip first 2 stack frames
[3e96559]	209	abort(); // cause core dump for debugging
[e6955b1]	210	} // sigSegvBusHandler
[0da3e2c]	211
[74330e7]	212	static void sigFpeHandler( SIGPARMS ) {
	213	const char * msg;
	214
	215	switch ( sfp->si_code ) {
	216	case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
	217	case FPE_FLTOVF: msg = "overflow"; break;
	218	case FPE_FLTUND: msg = "underflow"; break;
	219	case FPE_FLTRES: msg = "inexact result"; break;
	220	case FPE_FLTINV: msg = "invalid operation"; break;
	221	default: msg = "unknown";
	222	} // choose
	223	cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
	224	<< "Possible cause is constant-expression evaluation invalid." << endl;
	225	backtrace( 2 ); // skip first 2 stack frames
	226	abort(); // cause core dump for debugging
	227	} // sigFpeHandler
	228
[bffcd66]	229	static void sigAbortHandler( SIGPARMS ) {
[b542bfb]	230	backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]	231	Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]	232	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	233	} // sigAbortHandler
	234
[cbaee0d]	235	int main( int argc, char * argv[] ) {
[3b8e52c]	236	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	237	ostream * output = & cout;
[e6955b1]	238	list< Declaration * > translationUnit;
	239
[bffcd66]	240	Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
	241	Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]	242	Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]	243	Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]	244
[bffcd66]	245	// cout << "main" << endl;
[44bca7f]	246	// for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]	247	// cout << '\t' << argv[i] << endl;
[44bca7f]	248	// } // for
	249
[e0bd0f9]	250	parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]	251	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	252
[ef22ad6]	253	if ( waiting_for_gdb ) {
[bffcd66]	254	cerr << "Waiting for gdb" << endl;
	255	cerr << "run :" << endl;
	256	cerr << " gdb attach " << getpid() << endl;
[dee1f89]	257	raise(SIGSTOP);
[ef22ad6]	258	} // if
[dee1f89]	259
[b87a5ed]	260	try {
[81419b5]	261	// choose to read the program from a file or stdin
[3b8e52c]	262	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	263	input = fopen( argv[ optind ], "r" );
[e0bd0f9]	264	assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]	265	optind += 1;
[3b8e52c]	266	} else { // no input file name
[b87a5ed]	267	input = stdin;
	268	} // if
	269
[79eaeb7]	270	Stats::Time::StartGlobal();
[3c0d4cd]	271	NewPass("Parse");
	272	Stats::Time::StartBlock("Parse");
[675716e]	273
[159c62e]	274	// read in the builtins, extras, and the prelude
[de62360d]	275	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	276	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	277
[37fe352]	278	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]	279
[807ce84]	280	// Read to gcc builtins, if not generating the cfa library
[37fe352]	281	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]	282	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	283	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	284
[159c62e]	285	// read the extra prelude in, if not generating the cfa library
[37fe352]	286	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]	287	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	288	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	289
[81419b5]	290	if ( ! libcfap ) {
[faf8857]	291	// read the prelude in, if not generating the cfa library
[e523b07]	292	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
	293	assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]	294	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	295
	296	// Read to cfa builtins, if not generating the cfa library
[37fe352]	297	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]	298	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	299	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	300	} // if
	301	} // if
[81419b5]	302
[926af74]	303	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	304
[b87a5ed]	305	if ( parsep ) {
[e6955b1]	306	parseTree->printList( cout );
[0da3e2c]	307	delete parseTree;
[3e96559]	308	return EXIT_SUCCESS;
[b87a5ed]	309	} // if
	310
[0da3e2c]	311	buildList( parseTree, translationUnit );
	312	delete parseTree;
[cbaee0d]	313	parseTree = nullptr;
[b87a5ed]	314
	315	if ( astp ) {
[1ab4ce2]	316	dump( translationUnit );
[3e96559]	317	return EXIT_SUCCESS;
[b87a5ed]	318	} // if
	319
[036dd5f]	320	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
	321	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
	322	// works okay for now.
	323	CodeTools::fillLocations( translationUnit );
[3c0d4cd]	324	Stats::Time::StopBlock();
[036dd5f]	325
[0c730d9]	326	PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
[00da199]	327	if ( exdeclp ) {
	328	dump( translationUnit );
	329	return EXIT_SUCCESS;
	330	} // if
[0c730d9]	331
[839ccbb]	332	// add the assignment statement after the initialization of a type parameter
[5dcb881]	333	PASS( "Validate-A", SymTab::validate_A( translationUnit ) );
[298fe57]	334
	335	// Must happen before auto-gen, because it uses the sized flag.
	336	PASS( "Link Reference To Types", SymTab::linkReferenceToTypes( translationUnit ) );
[b87a5ed]	337
[76b378d]	338	CodeTools::fillLocations( translationUnit );
	339
[4a8f150]	340	if( useNewAST ) {
[a488783]	341	CodeTools::fillLocations( translationUnit );
	342
[3746f777]	343	if (Stats::Counters::enabled) {
	344	ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
	345	ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
	346	}
[9ea38de]	347	auto transUnit = convert( move( translationUnit ) );
[9f5a19fa]	348
[68fe946e]	349	forceFillCodeLocations( transUnit );
	350
[298fe57]	351	// Must happen after Link References To Types,
	352	// because aggregate members are accessed.
	353	PASS( "Fix Qualified Types", Validate::fixQualifiedTypes( transUnit ) );
	354
	355	PASS( "Hoist Struct", Validate::hoistStruct( transUnit ) );
	356	PASS( "Eliminate Typedef", Validate::eliminateTypedef( transUnit ) );
	357
[4ec9513]	358	// Check as early as possible. Can't happen before
	359	// LinkReferenceToType, observed failing when attempted
	360	// before eliminateTypedef
	361	PASS( "Validate Generic Parameters", Validate::fillGenericParameters( transUnit ) );
	362
	363	PASS( "Translate Dimensions", Validate::translateDimensionParameters( transUnit ) );
	364	PASS( "Check Function Returns", Validate::checkReturnStatements( transUnit ) );
	365
	366	// Must happen before Autogen.
	367	PASS( "Fix Return Statements", InitTweak::fixReturnStatements( transUnit ) );
	368
[4f6dda0]	369	PASS( "Implement Concurrent Keywords", Concurrency::implementKeywords( transUnit ) );
	370
[9490621]	371	// Must be after implement concurrent keywords; because uniqueIds
	372	// must be set on declaration before resolution.
	373	// Must happen before autogen routines are added.
	374	PASS( "Forall Pointer Decay", Validate::decayForallPointers( transUnit ) );
	375
[a488783]	376	// Must happen before autogen routines are added.
	377	PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls( transUnit ) );
	378
	379	// Must be after enum and pointer decay.
	380	// Must be before compound literals.
	381	PASS( "Generate Autogen Routines", Validate::autogenerateRoutines( transUnit ) );
	382
[2cf3b87]	383	PASS( "Implement Mutex", Concurrency::implementMutex( transUnit ) );
	384	PASS( "Implement Thread Start", Concurrency::implementThreadStarter( transUnit ) );
	385	PASS( "Compound Literal", Validate::handleCompoundLiterals( transUnit ) );
[ce36b55]	386	PASS( "Set Length From Initializer", Validate::setLengthFromInitializer( transUnit ) );
	387	PASS( "Find Global Decls", Validate::findGlobalDecls( transUnit ) );
	388	PASS( "Fix Label Address", Validate::fixLabelAddresses( transUnit ) );
	389
[1622af5]	390	if ( symtabp ) {
	391	return EXIT_SUCCESS;
	392	} // if
	393
	394	if ( expraltp ) {
	395	ResolvExpr::printCandidates( transUnit );
	396	return EXIT_SUCCESS;
	397	} // if
	398
	399	if ( validp ) {
	400	dump( move( transUnit ) );
	401	return EXIT_SUCCESS;
	402	} // if
	403
[5ee153d]	404	PASS( "Translate Throws", ControlStruct::translateThrows( transUnit ) );
[b8ab91a]	405	PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
[0c577f7]	406	PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
[a36eb2d]	407	PASS( "Gen Init", InitTweak::genInit( transUnit ) );
[9f5a19fa]	408	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
[68fe946e]	409
[da6396f]	410	if ( libcfap ) {
	411	// Generate the bodies of cfa library functions.
	412	LibCfa::makeLibCfa( transUnit );
	413	} // if
[68fe946e]	414
	415	if ( declstatsp ) {
	416	printDeclStats( transUnit );
	417	return EXIT_SUCCESS;
	418	} // if
	419
	420	if ( bresolvep ) {
	421	dump( move( transUnit ) );
	422	return EXIT_SUCCESS;
	423	} // if
	424
	425	if ( resolvprotop ) {
[55cbff8]	426	dumpAsResolverProto( transUnit );
[68fe946e]	427	return EXIT_SUCCESS;
	428	} // if
	429
[9ea38de]	430	PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]	431	if ( exprp ) {
[e499381]	432	dump( move( transUnit ) );
[490fb92e]	433	return EXIT_SUCCESS;
	434	} // if
	435
[f57faf6f]	436	forceFillCodeLocations( transUnit );
[4a8f150]	437
[490fb92e]	438	PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[da6396f]	439
[01d433e]	440	// fix ObjectDecl - replaces ConstructorInit nodes
	441	if ( ctorinitp ) {
	442	dump( move( transUnit ) );
	443	return EXIT_SUCCESS;
	444	} // if
	445
	446	// Currently not working due to unresolved issues with UniqueExpr
	447	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]	448
	449	PASS( "Translate Tries" , ControlStruct::translateTries( transUnit ) );
	450
[9ea38de]	451	translationUnit = convert( move( transUnit ) );
[a77257be]	452	} else {
[298fe57]	453	PASS( "Validate-B", SymTab::validate_B( translationUnit ) );
[4ec9513]	454	PASS( "Validate-C", SymTab::validate_C( translationUnit ) );
[a488783]	455	PASS( "Validate-D", SymTab::validate_D( translationUnit ) );
[2cf3b87]	456	PASS( "Validate-E", SymTab::validate_E( translationUnit ) );
[ce36b55]	457	PASS( "Validate-F", SymTab::validate_F( translationUnit ) );
	458
[1622af5]	459	if ( symtabp ) {
	460	deleteAll( translationUnit );
	461	return EXIT_SUCCESS;
	462	} // if
	463
	464	if ( expraltp ) {
	465	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
	466	acceptAll( translationUnit, printer );
	467	return EXIT_SUCCESS;
	468	} // if
	469
	470	if ( validp ) {
	471	dump( translationUnit );
	472	return EXIT_SUCCESS;
	473	} // if
	474
[5ee153d]	475	PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[b8ab91a]	476	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
[0c577f7]	477	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
[a36eb2d]	478	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
[9f5a19fa]	479	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
	480
[da6396f]	481	if ( libcfap ) {
	482	// Generate the bodies of cfa library functions.
	483	LibCfa::makeLibCfa( translationUnit );
	484	} // if
[68fe946e]	485
	486	if ( declstatsp ) {
	487	CodeTools::printDeclStats( translationUnit );
	488	deleteAll( translationUnit );
	489	return EXIT_SUCCESS;
	490	} // if
	491
	492	if ( bresolvep ) {
	493	dump( translationUnit );
	494	return EXIT_SUCCESS;
	495	} // if
	496
	497	CodeTools::fillLocations( translationUnit );
	498
	499	if ( resolvprotop ) {
	500	CodeTools::dumpAsResolvProto( translationUnit );
	501	return EXIT_SUCCESS;
	502	} // if
	503
[a77257be]	504	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]	505	if ( exprp ) {
	506	dump( translationUnit );
	507	return EXIT_SUCCESS;
	508	}
[4615ac8]	509
[490fb92e]	510	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
[81419b5]	511
[01d433e]	512	// fix ObjectDecl - replaces ConstructorInit nodes
	513	if ( ctorinitp ) {
	514	dump ( translationUnit );
	515	return EXIT_SUCCESS;
	516	} // if
[71f4e4f]	517
[01d433e]	518	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]	519
	520	PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[01d433e]	521	}
[626dbc10]	522
[675716e]	523	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]	524
[675716e]	525	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]	526
[675716e]	527	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]	528
	529	if ( tuplep ) {
	530	dump( translationUnit );
[3e96559]	531	return EXIT_SUCCESS;
	532	} // if
[141b786]	533
[675716e]	534	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]	535
[675716e]	536	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]	537	if ( genericsp ) {
	538	dump( translationUnit );
[3e96559]	539	return EXIT_SUCCESS;
	540	} // if
[b4f8808]	541
[675716e]	542	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]	543
[fea7ca7]	544	if ( bboxp ) {
	545	dump( translationUnit );
[3e96559]	546	return EXIT_SUCCESS;
[926af74]	547	} // if
[675716e]	548	PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]	549
[aff7e86]	550	PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
	551
	552	// Code has been lowered to C, now we can start generation.
	553
[8905f56]	554	if ( bcodegenp ) {
	555	dump( translationUnit );
[3e96559]	556	return EXIT_SUCCESS;
	557	} // if
[8905f56]	558
[13de47bc]	559	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	560	output = new ofstream( argv[ optind ] );
	561	} // if
[0270824]	562
[7b15d7a]	563	CodeTools::fillLocations( translationUnit );
[62ce290]	564	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]	565
[8e48fca4]	566	CodeGen::FixMain::fix( translationUnit, *output,
	567	(PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]	568	if ( output != &cout ) {
[b87a5ed]	569	delete output;
	570	} // if
[77d601f]	571	} catch ( SemanticErrorException & e ) {
[b87a5ed]	572	if ( errorp ) {
[e6955b1]	573	cerr << "---AST at error:---" << endl;
	574	dump( translationUnit, cerr );
	575	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	576	} // if
[d55d7a6]	577	e.print();
[e6955b1]	578	if ( output != &cout ) {
[b87a5ed]	579	delete output;
	580	} // if
[3e96559]	581	return EXIT_FAILURE;
[77d601f]	582	} catch ( UnimplementedError & e ) {
[e6955b1]	583	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	584	if ( output != &cout ) {
[b87a5ed]	585	delete output;
	586	} // if
[3e96559]	587	return EXIT_FAILURE;
[77d601f]	588	} catch ( CompilerError & e ) {
[e6955b1]	589	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	590	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	591	if ( output != &cout ) {
[b87a5ed]	592	delete output;
	593	} // if
[3e96559]	594	return EXIT_FAILURE;
[77d601f]	595	} catch ( std::bad_alloc & ) {
	596	cerr << "cfa-cpp compilation error std::bad_alloc" << endl;
	597	backtrace( 1 );
	598	abort();
[3e96559]	599	} catch ( ... ) {
[bffcd66]	600	exception_ptr eptr = current_exception();
[4990812]	601	try {
	602	if (eptr) {
[bffcd66]	603	rethrow_exception(eptr);
[3e96559]	604	} else {
[77d601f]	605	cerr << "cfa-cpp compilation error exception uncaught and unknown" << endl;
[3e96559]	606	} // if
[77d601f]	607	} catch( const exception & e ) {
	608	cerr << "cfa-cpp compilation error uncaught exception \"" << e.what() << "\"\n";
[3e96559]	609	} // try
	610	return EXIT_FAILURE;
	611	} // try
[b87a5ed]	612
[39786813]	613	deleteAll( translationUnit );
[1cb7fab2]	614	Stats::print();
[3e96559]	615	return EXIT_SUCCESS;
[d9a0e76]	616	} // main
[51b7345]	617
[0da3e2c]	618
[3e9de01]	619	static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]	620
[62ce290]	621	enum { PreludeDir = 128 };
[3e96559]	622	static struct option long_opts[] = {
[1a69a90]	623	{ "colors", required_argument, nullptr, 'c' },
	624	{ "gdb", no_argument, nullptr, 'g' },
[3e96559]	625	{ "help", no_argument, nullptr, 'h' },
	626	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	627	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	628	{ "no-main", no_argument, 0, 'm' },
[62ce290]	629	{ "no-linemarks", no_argument, nullptr, 'N' },
	630	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	631	{ "prototypes", no_argument, nullptr, 'p' },
[7215000]	632	{ "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]	633	{ "old-ast", no_argument, nullptr, 'O'},
	634	{ "new-ast", no_argument, nullptr, 'A'},
[62ce290]	635	{ "print", required_argument, nullptr, 'P' },
	636	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	637	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	638	{ "tree", no_argument, nullptr, 't' },
	639	{ "", no_argument, nullptr, 0 }, // -w
	640	{ "", no_argument, nullptr, 0 }, // -W
	641	{ "", no_argument, nullptr, 0 }, // -D
	642	{ nullptr, 0, nullptr, 0 }
	643	}; // long_opts
	644
	645	static const char * description[] = {
[aa88cb9a]	646	"diagnostic color: never, always, auto", // -c
[3e9de01]	647	"wait for gdb to attach", // -g
[aa88cb9a]	648	"print translator help message", // -h
[3e9de01]	649	"generate libcfa.c", // -l
	650	"generate line marks", // -L
	651	"do not replace main", // -m
	652	"do not generate line marks", // -N
	653	"do not read prelude", // -n
[aa88cb9a]	654	"do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]	655	"only print deterministic output", // -d
	656	"Use the old-ast", // -O
	657	"Use the new-ast", // -A
	658	"print", // -P
[62ce290]	659	"<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]	660	"<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]	661	"building cfa standard lib", // -t
	662	"", // -w
	663	"", // -W
	664	"", // -D
[3e96559]	665	}; // description
	666
[0c0f548]	667	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	668
	669	static struct Printopts {
	670	const char * name;
	671	int & flag;
	672	int val;
	673	const char * descript;
	674	} printopts[] = {
[0e464f6]	675	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
	676	{ "asterr", errorp, true, "print AST on error" },
[62ce290]	677	{ "declstats", declstatsp, true, "code property statistics" },
	678	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	679	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	680	{ "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]	681	{ "rsteps", resolvep, true, "print resolver steps" },
	682	{ "tree", parsep, true, "print parse tree" },
	683	// code dumps
	684	{ "ast", astp, true, "print AST after parsing" },
[00da199]	685	{ "exdecl", exdeclp, true, "print AST after translating exception decls" },
[0e464f6]	686	{ "symevt", symtabp, true, "print AST after symbol table events" },
	687	{ "altexpr", expraltp, true, "print alternatives for expressions" },
	688	{ "astdecl", validp, true, "print AST after declaration validation pass" },
	689	{ "resolver", bresolvep, true, "print AST before resolver step" },
	690	{ "astexpr", exprp, true, "print AST after expression analysis" },
	691	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
	692	{ "tuple", tuplep, true, "print AST after tuple expansion" },
	693	{ "astgen", genericsp, true, "print AST after instantiate generics" },
	694	{ "box", bboxp, true, "print AST before box step" },
	695	{ "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]	696	};
	697	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	698
[77d601f]	699	static void usage( char * argv[] ) {
[e0bd0f9]	700	cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]	701	int i = 0, j = 1; // j skips starting colon
	702	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	703	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	704	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	705	cout << " -" << optstring[j] << ",";
	706	} else { // no flag
	707	j -= 1; // compensate
	708	cout << " ";
	709	} // if
	710	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	711	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	712	cout << "one of: " << endl;
	713	for ( int i = 0; i < printoptsSize; i += 1 ) {
	714	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	715	} // for
	716	} else {
	717	cout << description[i] << endl;
	718	} // if
[3e96559]	719	} // if
[62ce290]	720	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	721	} // for
	722	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	723	exit( EXIT_FAILURE );
	724	} // usage
	725
[e0bd0f9]	726	static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]	727	opterr = 0; // (global) prevent getopt from printing error messages
	728
[c5e5109]	729	bool Wsuppress = false, Werror = false;
[0da3e2c]	730	int c;
[3e96559]	731	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	732	switch ( c ) {
[1a69a90]	733	case 'c': // diagnostic colors
	734	if ( strcmp( optarg, "always" ) == 0 ) {
	735	ErrorHelpers::colors = ErrorHelpers::Colors::Always;
	736	} else if ( strcmp( optarg, "never" ) == 0 ) {
	737	ErrorHelpers::colors = ErrorHelpers::Colors::Never;
	738	} else if ( strcmp( optarg, "auto" ) == 0 ) {
	739	ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
	740	} // if
	741	break;
[3e96559]	742	case 'h': // help message
	743	usage( argv ); // no return
[53d3ab4b]	744	break;
[3e96559]	745	case 'l': // generate libcfa.c
[0da3e2c]	746	libcfap = true;
	747	break;
[62ce290]	748	case 'L': // generate line marks
[6de43b6]	749	linemarks = true;
[c850687]	750	break;
[3e96559]	751	case 'm': // do not replace main
	752	nomainp = true;
[0da3e2c]	753	break;
[62ce290]	754	case 'N': // do not generate line marks
[6de43b6]	755	linemarks = false;
[c59bde6]	756	break;
[62ce290]	757	case 'n': // do not read prelude
[3e96559]	758	nopreludep = true;
[0da3e2c]	759	break;
[62ce290]	760	case 'p': // generate prototypes for prelude functions
	761	genproto = true;
[0da3e2c]	762	break;
[7215000]	763	case 'd': // don't print non-deterministic output
[a77257be]	764	deterministic_output = true;
	765	break;
	766	case 'O': // don't print non-deterministic output
	767	useNewAST = false;
	768	break;
	769	case 'A': // don't print non-deterministic output
	770	useNewAST = true;
[7215000]	771	break;
[62ce290]	772	case 'P': // print options
	773	for ( int i = 0;; i += 1 ) {
	774	if ( i == printoptsSize ) {
	775	cout << "Unknown --print option " << optarg << endl;
	776	goto Default;
	777	} // if
	778	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	779	printopts[i].flag = printopts[i].val;
	780	break;
	781	} // if
	782	} // for
[0da3e2c]	783	break;
[62ce290]	784	case PreludeDir: // prelude directory for debug/nodebug, hidden
	785	PreludeDirector = optarg;
[3b3491b]	786	break;
[3e96559]	787	case 'S': // enable profiling information, argument comma separated list of names
	788	Stats::parse_params( optarg );
[ebcc940]	789	break;
[dee1f89]	790	case 't': // building cfa stdlib
[0da3e2c]	791	treep = true;
	792	break;
[dee1f89]	793	case 'g': // wait for gdb
	794	waiting_for_gdb = true;
	795	break;
[3e96559]	796	case 'w': // suppress all warnings, hidden
[c5e5109]	797	Wsuppress = true;
[44bca7f]	798	break;
[3e96559]	799	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	800	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	801	SemanticWarning_EnableAll();
[44bca7f]	802	} else if ( strcmp( optarg, "error" ) == 0 ) {
	803	Werror = true;
	804	} else {
	805	char * warning = optarg;
	806	Severity s;
	807	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	808	warning += 3;
	809	s = Severity::Suppress;
	810	} else {
	811	s = Severity::Warn;
	812	} // if
[68e9ace]	813	SemanticWarning_Set( warning, s );
[44bca7f]	814	} // if
	815	break;
[3e96559]	816	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	817	break;
[3e96559]	818	case '?': // unknown option
	819	if ( optopt ) { // short option ?
	820	cout << "Unknown option -" << (char)optopt << endl;
	821	} else {
	822	cout << "Unknown option " << argv[optind - 1] << endl;
	823	} // if
	824	goto Default;
	825	case ':': // missing option
[ae47a23]	826	if ( optopt ) { // short option ?
[3e96559]	827	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	828	} else {
[3e96559]	829	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	830	} // if
[3e96559]	831	goto Default;
	832	Default:
	833	default:
	834	usage( argv ); // no return
[0da3e2c]	835	} // switch
	836	} // while
[44bca7f]	837
	838	if ( Werror ) {
[68e9ace]	839	SemanticWarning_WarningAsError();
[44bca7f]	840	} // if
[c5e5109]	841	if ( Wsuppress ) {
	842	SemanticWarning_SuppressAll();
	843	} // if
[44bca7f]	844	// for ( const auto w : WarningFormats ) {
	845	// cout << w.name << ' ' << (int)w.severity << endl;
	846	// } // for
[0da3e2c]	847	} // parse_cmdline
	848
[8b7ee09]	849	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	850	extern int yyparse( void );
[cbaee0d]	851	extern FILE * yyin;
[0da3e2c]	852	extern int yylineno;
	853
[8b7ee09]	854	::linkage = linkage; // set globals
[0da3e2c]	855	yyin = input;
	856	yylineno = 1;
	857	int parseStatus = yyparse();
[81419b5]	858
	859	fclose( input );
[0da3e2c]	860	if ( shouldExit \|\| parseStatus != 0 ) {
	861	exit( parseStatus );
[81419b5]	862	} // if
[0da3e2c]	863	} // parse
[81419b5]	864
[1ab4ce2]	865	static bool notPrelude( Declaration * decl ) {
	866	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	867	} // notPrelude
[1ab4ce2]	868
[e6955b1]	869	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	870	list< Declaration * > decls;
[926af74]	871
[62ce290]	872	if ( genproto ) {
[e6955b1]	873	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	874	} else {
	875	decls = translationUnit;
[926af74]	876	} // if
[1ab4ce2]	877
[e39241b]	878	// depending on commandline options, either generate code or dump the AST
	879	if ( codegenp ) {
[62ce290]	880	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	881	} else {
	882	printAll( decls, out );
[3e96559]	883	} // if
[7f5566b]	884	deleteAll( translationUnit );
[0da3e2c]	885	} // dump
[1ab4ce2]	886
[e499381]	887	static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
	888	std::list< Declaration * > translationUnit = convert( move( transUnit ) );
	889	dump( translationUnit, out );
	890	}
	891
[51b7345]	892	// Local Variables: //
[b87a5ed]	893	// tab-width: 4 //
	894	// mode: c++ //
	895	// compile-command: "make install" //
[51b7345]	896	// End: //

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