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source: src/main.cc @ 48a91e2

ADTast-experimentalenumpthread-emulationqualifiedEnum

Last change on this file since 48a91e2 was 33b7d49, checked in by Andrew Beach <ajbeach@…>, 2 years ago
Added another check to checkInvariants for code locations. I also went through and made sure you can put it every after every new AST pass not followed by a forceFillCodeLocations.
Property mode set to `100644`
File size: 31.5 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
[4f6dda0]	12	// Last Modified On : Fri Mar 11 10:39:00 2022
	13	// Update Count : 671
[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
[9490621]	78	#include "Validate/ForallPointerDecay.hpp" // for decayForallPointers
[2cf3b87]	79	#include "Validate/CompoundLiteral.hpp" // for handleCompoundLiterals
[ce36b55]	80	#include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
	81	#include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
[a5f0529]	82	#include "Virtual/ExpandCasts.h" // for expandCasts
[51b7345]	83
[3e96559]	84	static void NewPass( const char * const name ) {
	85	Stats::Heap::newPass( name );
[1cb7fab2]	86	using namespace Stats::Counters;
[b8665e3]	87	{
[3e96559]	88	static auto group = build<CounterGroup>( "Pass Visitor" );
	89	auto pass = build<CounterGroup>( name, group );
[b8665e3]	90	pass_visitor_stats.depth = 0;
[3e96559]	91	pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
	92	pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]	93	}
	94	{
[3e96559]	95	static auto group = build<CounterGroup>( "Syntax Node" );
	96	auto pass = build<CounterGroup>( name, group );
	97	BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]	98	}
[675716e]	99	}
	100
[3e96559]	101	#define PASS( name, pass ) \
[ecaeac6e]	102	if ( errorp ) { cerr << name << endl; } \
[675716e]	103	NewPass(name); \
[4f97937]	104	Stats::Time::StartBlock(name); \
	105	pass; \
	106	Stats::Time::StopBlock();
[0da3e2c]	107
[8b7ee09]	108	LinkageSpec::Spec linkage = LinkageSpec::Cforall;
[0da3e2c]	109	TypedefTable typedefTable;
[cbaee0d]	110	DeclarationNode * parseTree = nullptr; // program parse tree
[81419b5]	111
[ef22ad6]	112	static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]	113
[bffcd66]	114	static string PreludeDirector = "";
[4dcaed2]	115
[77d601f]	116	static void parse_cmdline( int argc, char * argv[] );
[8b7ee09]	117	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit = false );
[e6955b1]	118	static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]	119	static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]	120
[0afffee]	121	static void backtrace( int start ) { // skip first N stack frames
[74330e7]	122	enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]	123	void * array[Frames];
[74330e7]	124	size_t size = ::backtrace( array, Frames );
[0afffee]	125	char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
	126
	127	*index( messages[0], '(' ) = '\0'; // find executable name
	128	cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]	129
[b542bfb]	130	// skip last 2 stack frames after main
[74330e7]	131	for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]	132	char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]	133
	134	for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]	135	if ( *p == '(' ) {
[46f6134]	136	mangled_name = p;
[0afffee]	137	} else if ( *p == '+' ) {
[e6955b1]	138	offset_begin = p;
[0afffee]	139	} else if ( *p == ')' ) {
[e6955b1]	140	offset_end = p;
	141	break;
	142	} // if
	143	} // for
	144
	145	// if line contains symbol, attempt to demangle
[b542bfb]	146	int frameNo = i - start;
[e6955b1]	147	if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]	148	*mangled_name++ = '\0'; // delimit strings
[e6955b1]	149	*offset_begin++ = '\0';
	150	*offset_end++ = '\0';
	151
[0afffee]	152	int status;
[e6955b1]	153	char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]	154	// bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]	155	if ( status == 0 ) { // demangling successful ?
[b542bfb]	156	cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]	157	<< real_name << "+" << offset_begin << offset_end << endl;
	158	} else { // otherwise, output mangled name
[b542bfb]	159	cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]	160	<< mangled_name << "(/unknown/)+" << offset_begin << offset_end << endl;
[e6955b1]	161	} // if
[0afffee]	162
[e6955b1]	163	free( real_name );
	164	} else { // otherwise, print the whole line
[b542bfb]	165	cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]	166	} // if
	167	} // for
[b542bfb]	168
[e6955b1]	169	free( messages );
[b542bfb]	170	} // backtrace
	171
[bffcd66]	172	#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
	173
[1f68d5d]	174	static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]	175	act.sa_flags = flags;
	176
	177	if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]	178	cerr << "cfa-cpp compilation error problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]	179	_exit( EXIT_FAILURE );
	180	} // if
[1f68d5d]	181	}
	182
	183	static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
	184	struct sigaction act;
	185	act.sa_sigaction = (void ()(int, siginfo_t , void *))handler;
	186	_Signal(act, sig, flags);
	187	} // Signal
	188
	189	static void Signal( int sig, void (* handler)(int), int flags ) {
	190	struct sigaction act;
	191	act.sa_handler = handler;
	192	_Signal(act, sig, flags);
[bffcd66]	193	} // Signal
	194
	195	static void sigSegvBusHandler( SIGPARMS ) {
	196	if ( sfp->si_addr == nullptr ) {
	197	cerr << "Null pointer (nullptr) dereference." << endl;
	198	} else {
	199	cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
	200	<< "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;
	201	} // if
[b542bfb]	202	backtrace( 2 ); // skip first 2 stack frames
[3e96559]	203	abort(); // cause core dump for debugging
[e6955b1]	204	} // sigSegvBusHandler
[0da3e2c]	205
[74330e7]	206	static void sigFpeHandler( SIGPARMS ) {
	207	const char * msg;
	208
	209	switch ( sfp->si_code ) {
	210	case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
	211	case FPE_FLTOVF: msg = "overflow"; break;
	212	case FPE_FLTUND: msg = "underflow"; break;
	213	case FPE_FLTRES: msg = "inexact result"; break;
	214	case FPE_FLTINV: msg = "invalid operation"; break;
	215	default: msg = "unknown";
	216	} // choose
	217	cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
	218	<< "Possible cause is constant-expression evaluation invalid." << endl;
	219	backtrace( 2 ); // skip first 2 stack frames
	220	abort(); // cause core dump for debugging
	221	} // sigFpeHandler
	222
[bffcd66]	223	static void sigAbortHandler( SIGPARMS ) {
[b542bfb]	224	backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]	225	Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]	226	raise( SIGABRT ); // reraise SIGABRT
[b542bfb]	227	} // sigAbortHandler
	228
[cbaee0d]	229	int main( int argc, char * argv[] ) {
[3b8e52c]	230	FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]	231	ostream * output = & cout;
[e6955b1]	232	list< Declaration * > translationUnit;
	233
[bffcd66]	234	Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
	235	Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]	236	Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]	237	Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]	238
[bffcd66]	239	// cout << "main" << endl;
[44bca7f]	240	// for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]	241	// cout << '\t' << argv[i] << endl;
[44bca7f]	242	// } // for
	243
[e0bd0f9]	244	parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]	245	CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]	246
[ef22ad6]	247	if ( waiting_for_gdb ) {
[bffcd66]	248	cerr << "Waiting for gdb" << endl;
	249	cerr << "run :" << endl;
	250	cerr << " gdb attach " << getpid() << endl;
[dee1f89]	251	raise(SIGSTOP);
[ef22ad6]	252	} // if
[dee1f89]	253
[b87a5ed]	254	try {
[81419b5]	255	// choose to read the program from a file or stdin
[3b8e52c]	256	if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]	257	input = fopen( argv[ optind ], "r" );
[e0bd0f9]	258	assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]	259	optind += 1;
[3b8e52c]	260	} else { // no input file name
[b87a5ed]	261	input = stdin;
	262	} // if
	263
[79eaeb7]	264	Stats::Time::StartGlobal();
[3c0d4cd]	265	NewPass("Parse");
	266	Stats::Time::StartBlock("Parse");
[675716e]	267
[159c62e]	268	// read in the builtins, extras, and the prelude
[de62360d]	269	if ( ! nopreludep ) { // include gcc builtins
[faf8857]	270	// -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]	271
[37fe352]	272	assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]	273
[807ce84]	274	// Read to gcc builtins, if not generating the cfa library
[37fe352]	275	FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]	276	assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
	277	parse( gcc_builtins, LinkageSpec::Compiler );
[81419b5]	278
[159c62e]	279	// read the extra prelude in, if not generating the cfa library
[37fe352]	280	FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]	281	assertf( extras, "cannot open extras.cf\n" );
[f0994a1]	282	parse( extras, LinkageSpec::BuiltinC );
[159c62e]	283
[81419b5]	284	if ( ! libcfap ) {
[faf8857]	285	// read the prelude in, if not generating the cfa library
[e523b07]	286	FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
	287	assertf( prelude, "cannot open prelude.cfa\n" );
[35304009]	288	parse( prelude, LinkageSpec::Intrinsic );
[fa4805f]	289
	290	// Read to cfa builtins, if not generating the cfa library
[37fe352]	291	FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]	292	assertf( builtins, "cannot open builtins.cf\n" );
[54d714e]	293	parse( builtins, LinkageSpec::BuiltinCFA );
[b87a5ed]	294	} // if
	295	} // if
[81419b5]	296
[926af74]	297	parse( input, libcfap ? LinkageSpec::Intrinsic : LinkageSpec::Cforall, yydebug );
[71f4e4f]	298
[b87a5ed]	299	if ( parsep ) {
[e6955b1]	300	parseTree->printList( cout );
[0da3e2c]	301	delete parseTree;
[3e96559]	302	return EXIT_SUCCESS;
[b87a5ed]	303	} // if
	304
[0da3e2c]	305	buildList( parseTree, translationUnit );
	306	delete parseTree;
[cbaee0d]	307	parseTree = nullptr;
[b87a5ed]	308
	309	if ( astp ) {
[1ab4ce2]	310	dump( translationUnit );
[3e96559]	311	return EXIT_SUCCESS;
[b87a5ed]	312	} // if
	313
[036dd5f]	314	// Temporary: fill locations after parsing so that every node has a location, for early error messages.
	315	// Eventually we should pass the locations from the parser to every node, but this quick and dirty solution
	316	// works okay for now.
	317	CodeTools::fillLocations( translationUnit );
[3c0d4cd]	318	Stats::Time::StopBlock();
[036dd5f]	319
[0c730d9]	320	PASS( "Translate Exception Declarations", ControlStruct::translateExcept( translationUnit ) );
[00da199]	321	if ( exdeclp ) {
	322	dump( translationUnit );
	323	return EXIT_SUCCESS;
	324	} // if
[0c730d9]	325
[839ccbb]	326	// add the assignment statement after the initialization of a type parameter
[5dcb881]	327	PASS( "Validate-A", SymTab::validate_A( translationUnit ) );
	328	PASS( "Validate-B", SymTab::validate_B( translationUnit ) );
	329	PASS( "Validate-C", SymTab::validate_C( translationUnit ) );
[b87a5ed]	330
[76b378d]	331	CodeTools::fillLocations( translationUnit );
	332
[4a8f150]	333	if( useNewAST ) {
[a488783]	334	CodeTools::fillLocations( translationUnit );
	335
[3746f777]	336	if (Stats::Counters::enabled) {
	337	ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
	338	ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
	339	}
[9ea38de]	340	auto transUnit = convert( move( translationUnit ) );
[9f5a19fa]	341
[68fe946e]	342	forceFillCodeLocations( transUnit );
	343
[4f6dda0]	344	PASS( "Implement Concurrent Keywords", Concurrency::implementKeywords( transUnit ) );
	345
[9490621]	346	// Must be after implement concurrent keywords; because uniqueIds
	347	// must be set on declaration before resolution.
	348	// Must happen before autogen routines are added.
	349	PASS( "Forall Pointer Decay", Validate::decayForallPointers( transUnit ) );
	350
[a488783]	351	// Must happen before autogen routines are added.
	352	PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls( transUnit ) );
	353
	354	// Must be after enum and pointer decay.
	355	// Must be before compound literals.
	356	PASS( "Generate Autogen Routines", Validate::autogenerateRoutines( transUnit ) );
	357
[2cf3b87]	358	PASS( "Implement Mutex", Concurrency::implementMutex( transUnit ) );
	359	PASS( "Implement Thread Start", Concurrency::implementThreadStarter( transUnit ) );
	360	PASS( "Compound Literal", Validate::handleCompoundLiterals( transUnit ) );
[ce36b55]	361	PASS( "Set Length From Initializer", Validate::setLengthFromInitializer( transUnit ) );
	362	PASS( "Find Global Decls", Validate::findGlobalDecls( transUnit ) );
	363	PASS( "Fix Label Address", Validate::fixLabelAddresses( transUnit ) );
	364
[1622af5]	365	if ( symtabp ) {
	366	return EXIT_SUCCESS;
	367	} // if
	368
	369	if ( expraltp ) {
	370	ResolvExpr::printCandidates( transUnit );
	371	return EXIT_SUCCESS;
	372	} // if
	373
	374	if ( validp ) {
	375	dump( move( transUnit ) );
	376	return EXIT_SUCCESS;
	377	} // if
	378
[5ee153d]	379	PASS( "Translate Throws", ControlStruct::translateThrows( transUnit ) );
[b8ab91a]	380	PASS( "Fix Labels", ControlStruct::fixLabels( transUnit ) );
[0c577f7]	381	PASS( "Fix Names", CodeGen::fixNames( transUnit ) );
[a36eb2d]	382	PASS( "Gen Init", InitTweak::genInit( transUnit ) );
[9f5a19fa]	383	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( transUnit ) );
[68fe946e]	384
[da6396f]	385	if ( libcfap ) {
	386	// Generate the bodies of cfa library functions.
	387	LibCfa::makeLibCfa( transUnit );
	388	} // if
[68fe946e]	389
	390	if ( declstatsp ) {
	391	printDeclStats( transUnit );
	392	return EXIT_SUCCESS;
	393	} // if
	394
	395	if ( bresolvep ) {
	396	dump( move( transUnit ) );
	397	return EXIT_SUCCESS;
	398	} // if
	399
	400	if ( resolvprotop ) {
[55cbff8]	401	dumpAsResolverProto( transUnit );
[68fe946e]	402	return EXIT_SUCCESS;
	403	} // if
	404
[9ea38de]	405	PASS( "Resolve", ResolvExpr::resolve( transUnit ) );
[490fb92e]	406	if ( exprp ) {
[e499381]	407	dump( move( transUnit ) );
[490fb92e]	408	return EXIT_SUCCESS;
	409	} // if
	410
[f57faf6f]	411	forceFillCodeLocations( transUnit );
[4a8f150]	412
[490fb92e]	413	PASS( "Fix Init", InitTweak::fix(transUnit, buildingLibrary()));
[da6396f]	414
[01d433e]	415	// fix ObjectDecl - replaces ConstructorInit nodes
	416	if ( ctorinitp ) {
	417	dump( move( transUnit ) );
	418	return EXIT_SUCCESS;
	419	} // if
	420
	421	// Currently not working due to unresolved issues with UniqueExpr
	422	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]	423
	424	PASS( "Translate Tries" , ControlStruct::translateTries( transUnit ) );
	425
[9ea38de]	426	translationUnit = convert( move( transUnit ) );
[a77257be]	427	} else {
[a488783]	428	PASS( "Validate-D", SymTab::validate_D( translationUnit ) );
[2cf3b87]	429	PASS( "Validate-E", SymTab::validate_E( translationUnit ) );
[ce36b55]	430	PASS( "Validate-F", SymTab::validate_F( translationUnit ) );
	431
[1622af5]	432	if ( symtabp ) {
	433	deleteAll( translationUnit );
	434	return EXIT_SUCCESS;
	435	} // if
	436
	437	if ( expraltp ) {
	438	PassVisitor<ResolvExpr::AlternativePrinter> printer( cout );
	439	acceptAll( translationUnit, printer );
	440	return EXIT_SUCCESS;
	441	} // if
	442
	443	if ( validp ) {
	444	dump( translationUnit );
	445	return EXIT_SUCCESS;
	446	} // if
	447
[5ee153d]	448	PASS( "Translate Throws", ControlStruct::translateThrows( translationUnit ) );
[b8ab91a]	449	PASS( "Fix Labels", ControlStruct::fixLabels( translationUnit ) );
[0c577f7]	450	PASS( "Fix Names", CodeGen::fixNames( translationUnit ) );
[a36eb2d]	451	PASS( "Gen Init", InitTweak::genInit( translationUnit ) );
[9f5a19fa]	452	PASS( "Expand Member Tuples" , Tuples::expandMemberTuples( translationUnit ) );
	453
[da6396f]	454	if ( libcfap ) {
	455	// Generate the bodies of cfa library functions.
	456	LibCfa::makeLibCfa( translationUnit );
	457	} // if
[68fe946e]	458
	459	if ( declstatsp ) {
	460	CodeTools::printDeclStats( translationUnit );
	461	deleteAll( translationUnit );
	462	return EXIT_SUCCESS;
	463	} // if
	464
	465	if ( bresolvep ) {
	466	dump( translationUnit );
	467	return EXIT_SUCCESS;
	468	} // if
	469
	470	CodeTools::fillLocations( translationUnit );
	471
	472	if ( resolvprotop ) {
	473	CodeTools::dumpAsResolvProto( translationUnit );
	474	return EXIT_SUCCESS;
	475	} // if
	476
[a77257be]	477	PASS( "Resolve", ResolvExpr::resolve( translationUnit ) );
[490fb92e]	478	if ( exprp ) {
	479	dump( translationUnit );
	480	return EXIT_SUCCESS;
	481	}
[4615ac8]	482
[490fb92e]	483	PASS( "Fix Init", InitTweak::fix( translationUnit, buildingLibrary() ) );
[81419b5]	484
[01d433e]	485	// fix ObjectDecl - replaces ConstructorInit nodes
	486	if ( ctorinitp ) {
	487	dump ( translationUnit );
	488	return EXIT_SUCCESS;
	489	} // if
[71f4e4f]	490
[01d433e]	491	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]	492
	493	PASS( "Translate Tries" , ControlStruct::translateTries( translationUnit ) );
[01d433e]	494	}
[626dbc10]	495
[675716e]	496	PASS( "Gen Waitfor" , Concurrency::generateWaitFor( translationUnit ) );
[307a732]	497
[675716e]	498	PASS( "Convert Specializations", GenPoly::convertSpecializations( translationUnit ) ); // needs to happen before tuple types are expanded
[9f5ecf5]	499
[675716e]	500	PASS( "Expand Tuples", Tuples::expandTuples( translationUnit ) ); // xxx - is this the right place for this?
[626dbc10]	501
	502	if ( tuplep ) {
	503	dump( translationUnit );
[3e96559]	504	return EXIT_SUCCESS;
	505	} // if
[141b786]	506
[675716e]	507	PASS( "Virtual Expand Casts", Virtual::expandCasts( translationUnit ) ); // Must come after translateEHM
[a5f0529]	508
[675716e]	509	PASS( "Instantiate Generics", GenPoly::instantiateGeneric( translationUnit ) );
[53d3ab4b]	510	if ( genericsp ) {
	511	dump( translationUnit );
[3e96559]	512	return EXIT_SUCCESS;
	513	} // if
[b4f8808]	514
[675716e]	515	PASS( "Convert L-Value", GenPoly::convertLvalue( translationUnit ) );
[53d3ab4b]	516
[fea7ca7]	517	if ( bboxp ) {
	518	dump( translationUnit );
[3e96559]	519	return EXIT_SUCCESS;
[926af74]	520	} // if
[675716e]	521	PASS( "Box", GenPoly::box( translationUnit ) );
[81419b5]	522
[aff7e86]	523	PASS( "Link-Once", CodeGen::translateLinkOnce( translationUnit ) );
	524
	525	// Code has been lowered to C, now we can start generation.
	526
[8905f56]	527	if ( bcodegenp ) {
	528	dump( translationUnit );
[3e96559]	529	return EXIT_SUCCESS;
	530	} // if
[8905f56]	531
[13de47bc]	532	if ( optind < argc ) { // any commands after the flags and input file ? => output file name
	533	output = new ofstream( argv[ optind ] );
	534	} // if
[0270824]	535
[7b15d7a]	536	CodeTools::fillLocations( translationUnit );
[62ce290]	537	PASS( "Code Gen", CodeGen::generate( translationUnit, *output, ! genproto, prettycodegenp, true, linemarks ) );
[0270824]	538
[8e48fca4]	539	CodeGen::FixMain::fix( translationUnit, *output,
	540	(PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]	541	if ( output != &cout ) {
[b87a5ed]	542	delete output;
	543	} // if
[77d601f]	544	} catch ( SemanticErrorException & e ) {
[b87a5ed]	545	if ( errorp ) {
[e6955b1]	546	cerr << "---AST at error:---" << endl;
	547	dump( translationUnit, cerr );
	548	cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]	549	} // if
[d55d7a6]	550	e.print();
[e6955b1]	551	if ( output != &cout ) {
[b87a5ed]	552	delete output;
	553	} // if
[3e96559]	554	return EXIT_FAILURE;
[77d601f]	555	} catch ( UnimplementedError & e ) {
[e6955b1]	556	cout << "Sorry, " << e.get_what() << " is not currently implemented" << endl;
	557	if ( output != &cout ) {
[b87a5ed]	558	delete output;
	559	} // if
[3e96559]	560	return EXIT_FAILURE;
[77d601f]	561	} catch ( CompilerError & e ) {
[e6955b1]	562	cerr << "Compiler Error: " << e.get_what() << endl;
[c850687]	563	cerr << "(please report bugs to [REDACTED])" << endl;
[e6955b1]	564	if ( output != &cout ) {
[b87a5ed]	565	delete output;
	566	} // if
[3e96559]	567	return EXIT_FAILURE;
[77d601f]	568	} catch ( std::bad_alloc & ) {
	569	cerr << "cfa-cpp compilation error std::bad_alloc" << endl;
	570	backtrace( 1 );
	571	abort();
[3e96559]	572	} catch ( ... ) {
[bffcd66]	573	exception_ptr eptr = current_exception();
[4990812]	574	try {
	575	if (eptr) {
[bffcd66]	576	rethrow_exception(eptr);
[3e96559]	577	} else {
[77d601f]	578	cerr << "cfa-cpp compilation error exception uncaught and unknown" << endl;
[3e96559]	579	} // if
[77d601f]	580	} catch( const exception & e ) {
	581	cerr << "cfa-cpp compilation error uncaught exception \"" << e.what() << "\"\n";
[3e96559]	582	} // try
	583	return EXIT_FAILURE;
	584	} // try
[b87a5ed]	585
[39786813]	586	deleteAll( translationUnit );
[1cb7fab2]	587	Stats::print();
[3e96559]	588	return EXIT_SUCCESS;
[d9a0e76]	589	} // main
[51b7345]	590
[0da3e2c]	591
[3e9de01]	592	static const char optstring[] = ":c:ghlLmNnpdOAP:S:twW:D:";
[3e96559]	593
[62ce290]	594	enum { PreludeDir = 128 };
[3e96559]	595	static struct option long_opts[] = {
[1a69a90]	596	{ "colors", required_argument, nullptr, 'c' },
	597	{ "gdb", no_argument, nullptr, 'g' },
[3e96559]	598	{ "help", no_argument, nullptr, 'h' },
	599	{ "libcfa", no_argument, nullptr, 'l' },
[62ce290]	600	{ "linemarks", no_argument, nullptr, 'L' },
[3e96559]	601	{ "no-main", no_argument, 0, 'm' },
[62ce290]	602	{ "no-linemarks", no_argument, nullptr, 'N' },
	603	{ "no-prelude", no_argument, nullptr, 'n' },
[3e96559]	604	{ "prototypes", no_argument, nullptr, 'p' },
[7215000]	605	{ "deterministic-out", no_argument, nullptr, 'd' },
[a77257be]	606	{ "old-ast", no_argument, nullptr, 'O'},
	607	{ "new-ast", no_argument, nullptr, 'A'},
[62ce290]	608	{ "print", required_argument, nullptr, 'P' },
	609	{ "prelude-dir", required_argument, nullptr, PreludeDir },
	610	{ "statistics", required_argument, nullptr, 'S' },
[3e96559]	611	{ "tree", no_argument, nullptr, 't' },
	612	{ "", no_argument, nullptr, 0 }, // -w
	613	{ "", no_argument, nullptr, 0 }, // -W
	614	{ "", no_argument, nullptr, 0 }, // -D
	615	{ nullptr, 0, nullptr, 0 }
	616	}; // long_opts
	617
	618	static const char * description[] = {
[aa88cb9a]	619	"diagnostic color: never, always, auto", // -c
[3e9de01]	620	"wait for gdb to attach", // -g
[aa88cb9a]	621	"print translator help message", // -h
[3e9de01]	622	"generate libcfa.c", // -l
	623	"generate line marks", // -L
	624	"do not replace main", // -m
	625	"do not generate line marks", // -N
	626	"do not read prelude", // -n
[aa88cb9a]	627	"do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]	628	"only print deterministic output", // -d
	629	"Use the old-ast", // -O
	630	"Use the new-ast", // -A
	631	"print", // -P
[62ce290]	632	"<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]	633	"<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]	634	"building cfa standard lib", // -t
	635	"", // -w
	636	"", // -W
	637	"", // -D
[3e96559]	638	}; // description
	639
[0c0f548]	640	static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]	641
	642	static struct Printopts {
	643	const char * name;
	644	int & flag;
	645	int val;
	646	const char * descript;
	647	} printopts[] = {
[0e464f6]	648	{ "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
	649	{ "asterr", errorp, true, "print AST on error" },
[62ce290]	650	{ "declstats", declstatsp, true, "code property statistics" },
	651	{ "parse", yydebug, true, "yacc (parsing) debug information" },
	652	{ "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
	653	{ "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]	654	{ "rsteps", resolvep, true, "print resolver steps" },
	655	{ "tree", parsep, true, "print parse tree" },
	656	// code dumps
	657	{ "ast", astp, true, "print AST after parsing" },
[00da199]	658	{ "exdecl", exdeclp, true, "print AST after translating exception decls" },
[0e464f6]	659	{ "symevt", symtabp, true, "print AST after symbol table events" },
	660	{ "altexpr", expraltp, true, "print alternatives for expressions" },
	661	{ "astdecl", validp, true, "print AST after declaration validation pass" },
	662	{ "resolver", bresolvep, true, "print AST before resolver step" },
	663	{ "astexpr", exprp, true, "print AST after expression analysis" },
	664	{ "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
	665	{ "tuple", tuplep, true, "print AST after tuple expansion" },
	666	{ "astgen", genericsp, true, "print AST after instantiate generics" },
	667	{ "box", bboxp, true, "print AST before box step" },
	668	{ "codegen", bcodegenp, true, "print AST before code generation" },
[62ce290]	669	};
	670	enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
	671
[77d601f]	672	static void usage( char * argv[] ) {
[e0bd0f9]	673	cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]	674	int i = 0, j = 1; // j skips starting colon
	675	for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
	676	if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]	677	if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
	678	cout << " -" << optstring[j] << ",";
	679	} else { // no flag
	680	j -= 1; // compensate
	681	cout << " ";
	682	} // if
	683	cout << " --" << left << setw(12) << long_opts[i].name << " ";
	684	if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
	685	cout << "one of: " << endl;
	686	for ( int i = 0; i < printoptsSize; i += 1 ) {
	687	cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
	688	} // for
	689	} else {
	690	cout << description[i] << endl;
	691	} // if
[3e96559]	692	} // if
[62ce290]	693	if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]	694	} // for
	695	if ( long_opts[i].name != 0 \|\| optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
	696	exit( EXIT_FAILURE );
	697	} // usage
	698
[e0bd0f9]	699	static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]	700	opterr = 0; // (global) prevent getopt from printing error messages
	701
[c5e5109]	702	bool Wsuppress = false, Werror = false;
[0da3e2c]	703	int c;
[3e96559]	704	while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]	705	switch ( c ) {
[1a69a90]	706	case 'c': // diagnostic colors
	707	if ( strcmp( optarg, "always" ) == 0 ) {
	708	ErrorHelpers::colors = ErrorHelpers::Colors::Always;
	709	} else if ( strcmp( optarg, "never" ) == 0 ) {
	710	ErrorHelpers::colors = ErrorHelpers::Colors::Never;
	711	} else if ( strcmp( optarg, "auto" ) == 0 ) {
	712	ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
	713	} // if
	714	break;
[3e96559]	715	case 'h': // help message
	716	usage( argv ); // no return
[53d3ab4b]	717	break;
[3e96559]	718	case 'l': // generate libcfa.c
[0da3e2c]	719	libcfap = true;
	720	break;
[62ce290]	721	case 'L': // generate line marks
[6de43b6]	722	linemarks = true;
[c850687]	723	break;
[3e96559]	724	case 'm': // do not replace main
	725	nomainp = true;
[0da3e2c]	726	break;
[62ce290]	727	case 'N': // do not generate line marks
[6de43b6]	728	linemarks = false;
[c59bde6]	729	break;
[62ce290]	730	case 'n': // do not read prelude
[3e96559]	731	nopreludep = true;
[0da3e2c]	732	break;
[62ce290]	733	case 'p': // generate prototypes for prelude functions
	734	genproto = true;
[0da3e2c]	735	break;
[7215000]	736	case 'd': // don't print non-deterministic output
[a77257be]	737	deterministic_output = true;
	738	break;
	739	case 'O': // don't print non-deterministic output
	740	useNewAST = false;
	741	break;
	742	case 'A': // don't print non-deterministic output
	743	useNewAST = true;
[7215000]	744	break;
[62ce290]	745	case 'P': // print options
	746	for ( int i = 0;; i += 1 ) {
	747	if ( i == printoptsSize ) {
	748	cout << "Unknown --print option " << optarg << endl;
	749	goto Default;
	750	} // if
	751	if ( strcmp( optarg, printopts[i].name ) == 0 ) {
	752	printopts[i].flag = printopts[i].val;
	753	break;
	754	} // if
	755	} // for
[0da3e2c]	756	break;
[62ce290]	757	case PreludeDir: // prelude directory for debug/nodebug, hidden
	758	PreludeDirector = optarg;
[3b3491b]	759	break;
[3e96559]	760	case 'S': // enable profiling information, argument comma separated list of names
	761	Stats::parse_params( optarg );
[ebcc940]	762	break;
[dee1f89]	763	case 't': // building cfa stdlib
[0da3e2c]	764	treep = true;
	765	break;
[dee1f89]	766	case 'g': // wait for gdb
	767	waiting_for_gdb = true;
	768	break;
[3e96559]	769	case 'w': // suppress all warnings, hidden
[c5e5109]	770	Wsuppress = true;
[44bca7f]	771	break;
[3e96559]	772	case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]	773	if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]	774	SemanticWarning_EnableAll();
[44bca7f]	775	} else if ( strcmp( optarg, "error" ) == 0 ) {
	776	Werror = true;
	777	} else {
	778	char * warning = optarg;
	779	Severity s;
	780	if ( strncmp( optarg, "no-", 3 ) == 0 ) {
	781	warning += 3;
	782	s = Severity::Suppress;
	783	} else {
	784	s = Severity::Warn;
	785	} // if
[68e9ace]	786	SemanticWarning_Set( warning, s );
[44bca7f]	787	} // if
	788	break;
[3e96559]	789	case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]	790	break;
[3e96559]	791	case '?': // unknown option
	792	if ( optopt ) { // short option ?
	793	cout << "Unknown option -" << (char)optopt << endl;
	794	} else {
	795	cout << "Unknown option " << argv[optind - 1] << endl;
	796	} // if
	797	goto Default;
	798	case ':': // missing option
[ae47a23]	799	if ( optopt ) { // short option ?
[3e96559]	800	cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]	801	} else {
[3e96559]	802	cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]	803	} // if
[3e96559]	804	goto Default;
	805	Default:
	806	default:
	807	usage( argv ); // no return
[0da3e2c]	808	} // switch
	809	} // while
[44bca7f]	810
	811	if ( Werror ) {
[68e9ace]	812	SemanticWarning_WarningAsError();
[44bca7f]	813	} // if
[c5e5109]	814	if ( Wsuppress ) {
	815	SemanticWarning_SuppressAll();
	816	} // if
[44bca7f]	817	// for ( const auto w : WarningFormats ) {
	818	// cout << w.name << ' ' << (int)w.severity << endl;
	819	// } // for
[0da3e2c]	820	} // parse_cmdline
	821
[8b7ee09]	822	static void parse( FILE * input, LinkageSpec::Spec linkage, bool shouldExit ) {
[0da3e2c]	823	extern int yyparse( void );
[cbaee0d]	824	extern FILE * yyin;
[0da3e2c]	825	extern int yylineno;
	826
[8b7ee09]	827	::linkage = linkage; // set globals
[0da3e2c]	828	yyin = input;
	829	yylineno = 1;
	830	int parseStatus = yyparse();
[81419b5]	831
	832	fclose( input );
[0da3e2c]	833	if ( shouldExit \|\| parseStatus != 0 ) {
	834	exit( parseStatus );
[81419b5]	835	} // if
[0da3e2c]	836	} // parse
[81419b5]	837
[1ab4ce2]	838	static bool notPrelude( Declaration * decl ) {
	839	return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]	840	} // notPrelude
[1ab4ce2]	841
[e6955b1]	842	static void dump( list< Declaration * > & translationUnit, ostream & out ) {
	843	list< Declaration * > decls;
[926af74]	844
[62ce290]	845	if ( genproto ) {
[e6955b1]	846	filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]	847	} else {
	848	decls = translationUnit;
[926af74]	849	} // if
[1ab4ce2]	850
[e39241b]	851	// depending on commandline options, either generate code or dump the AST
	852	if ( codegenp ) {
[62ce290]	853	CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]	854	} else {
	855	printAll( decls, out );
[3e96559]	856	} // if
[7f5566b]	857	deleteAll( translationUnit );
[0da3e2c]	858	} // dump
[1ab4ce2]	859
[e499381]	860	static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
	861	std::list< Declaration * > translationUnit = convert( move( transUnit ) );
	862	dump( translationUnit, out );
	863	}
	864
[51b7345]	865	// Local Variables: //
[b87a5ed]	866	// tab-width: 4 //
	867	// mode: c++ //
	868	// compile-command: "make install" //
[51b7345]	869	// End: //

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