source: src/main.cc@ 1b0184b

Last change on this file since 1b0184b was cf3da24, checked in by Andrew Beach <ajbeach@…>, 2 years ago

Fixed up some whitespace. Pretty minor stuff mostly.
  • Property mode set to 100644
File size: 29.0 KB
RevLine 
[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
[372b6d3]11// Last Modified By : Peter A. Buhr
[12f671e]12// Last Modified On : Thu Sep 28 22:28:45 2023
13// Update Count : 687
[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
[9ea38de]31#include "AST/Convert.hpp"
[bccd70a]32#include "AST/Pass.hpp" // for pass_visitor_stats
33#include "AST/TranslationUnit.hpp" // for TranslationUnit
[52f9804]34#include "AST/Util.hpp" // for checkInvariants
[7f38b67a]35#include "CompilationState.h"
[bf2438c]36#include "../config.h" // for CFA_LIBDIR
37#include "CodeGen/FixMain.h" // for FixMain
38#include "CodeGen/FixNames.h" // for fixNames
39#include "CodeGen/Generate.h" // for generate
[aff7e86]40#include "CodeGen/LinkOnce.h" // for translateLinkOnce
[bf2438c]41#include "CodeTools/TrackLoc.h" // for fillLocations
[f57faf6f]42#include "Common/CodeLocationTools.hpp" // for forceFillCodeLocations
[55cbff8]43#include "Common/DeclStats.hpp" // for printDeclStats
44#include "Common/ResolvProtoDump.hpp" // for dumpAsResolverProto
[09366b8]45#include "Common/Stats.h" // for Stats
[bf2438c]46#include "Common/utility.h" // for deleteAll, filter, printAll
[3dd8f42]47#include "Concurrency/Actors.hpp" // for implementActors
[eb779d5]48#include "Concurrency/Corun.hpp" // for implementCorun
[2cf3b87]49#include "Concurrency/Keywords.h" // for implementMutex, implement...
[9f5ecf5]50#include "Concurrency/Waitfor.h" // for generateWaitfor
[c86b08d]51#include "Concurrency/Waituntil.hpp" // for generateWaitUntil
[0c730d9]52#include "ControlStruct/ExceptDecl.h" // for translateExcept
[09366b8]53#include "ControlStruct/ExceptTranslate.h" // for translateThrows, translat...
[b8ab91a]54#include "ControlStruct/FixLabels.hpp" // for fixLabels
[a488783]55#include "ControlStruct/HoistControlDecls.hpp" // hoistControlDecls
[bf2438c]56#include "GenPoly/Box.h" // for box
57#include "GenPoly/InstantiateGeneric.h" // for instantiateGeneric
58#include "GenPoly/Lvalue.h" // for convertLvalue
59#include "GenPoly/Specialize.h" // for convertSpecializations
60#include "InitTweak/FixInit.h" // for fix
61#include "InitTweak/GenInit.h" // for genInit
62#include "MakeLibCfa.h" // for makeLibCfa
[cbd1ba8]63#include "Parser/RunParser.hpp" // for buildList, dumpParseTree,...
[1622af5]64#include "ResolvExpr/CandidatePrinter.hpp" // for printCandidates
[d3652df]65#include "ResolvExpr/EraseWith.hpp" // for eraseWith
[bf2438c]66#include "ResolvExpr/Resolver.h" // for resolve
[bffcd66]67#include "SynTree/LinkageSpec.h" // for Spec, Cforall, Intrinsic
[bf2438c]68#include "SynTree/Declaration.h" // for Declaration
69#include "Tuples/Tuples.h" // for expandMemberTuples, expan...
[a488783]70#include "Validate/Autogen.hpp" // for autogenerateRoutines
[298fe57]71#include "Validate/CompoundLiteral.hpp" // for handleCompoundLiterals
72#include "Validate/EliminateTypedef.hpp" // for eliminateTypedef
[1931bb01]73#include "Validate/EnumAndPointerDecay.hpp" // for decayEnumsAndPointers
[ce36b55]74#include "Validate/FindSpecialDecls.h" // for findGlobalDecls
[298fe57]75#include "Validate/FixQualifiedTypes.hpp" // for fixQualifiedTypes
[1931bb01]76#include "Validate/FixReturnTypes.hpp" // for fixReturnTypes
[9490621]77#include "Validate/ForallPointerDecay.hpp" // for decayForallPointers
[298fe57]78#include "Validate/GenericParameter.hpp" // for fillGenericParameters, tr...
79#include "Validate/HoistStruct.hpp" // for hoistStruct
[1931bb01]80#include "Validate/HoistTypeDecls.hpp" // for hoistTypeDecls
[ce36b55]81#include "Validate/InitializerLength.hpp" // for setLengthFromInitializer
82#include "Validate/LabelAddressFixer.hpp" // for fixLabelAddresses
[72e76fd]83#include "Validate/LinkReferenceToTypes.hpp" // for linkReferenceToTypes
[1931bb01]84#include "Validate/ReplaceTypedef.hpp" // for replaceTypedef
[4ec9513]85#include "Validate/ReturnCheck.hpp" // for checkReturnStatements
[1931bb01]86#include "Validate/VerifyCtorDtorAssign.hpp" // for verifyCtorDtorAssign
[a5f0529]87#include "Virtual/ExpandCasts.h" // for expandCasts
[3830c84]88#include "Virtual/VirtualDtor.hpp" // for implementVirtDtors
[51b73452]89
[2c38b15]90using namespace std;
91
[3e96559]92static void NewPass( const char * const name ) {
93 Stats::Heap::newPass( name );
[1cb7fab2]94 using namespace Stats::Counters;
[b8665e3]95 {
[3e96559]96 static auto group = build<CounterGroup>( "Pass Visitor" );
97 auto pass = build<CounterGroup>( name, group );
[b8665e3]98 pass_visitor_stats.depth = 0;
[3e96559]99 pass_visitor_stats.avg = build<AverageCounter<double>>( "Average Depth", pass );
100 pass_visitor_stats.max = build<MaxCounter<double>>( "Max Depth", pass );
[b8665e3]101 }
102 {
[3e96559]103 static auto group = build<CounterGroup>( "Syntax Node" );
104 auto pass = build<CounterGroup>( name, group );
105 BaseSyntaxNode::new_nodes = build<SimpleCounter>( "Allocs", pass );
[b8665e3]106 }
[675716e]107}
108
[52f9804]109// Helpers for checkInvariant:
110void checkInvariants( std::list< Declaration * > & ) {}
111using ast::checkInvariants;
112
113#define PASS( name, pass, unit, ... ) \
[ecaeac6e]114 if ( errorp ) { cerr << name << endl; } \
[675716e]115 NewPass(name); \
[4f97937]116 Stats::Time::StartBlock(name); \
[52f9804]117 pass(unit,##__VA_ARGS__); \
118 Stats::Time::StopBlock(); \
119 if ( invariant ) { \
120 checkInvariants(unit); \
121 }
122
123#define DUMP( cond, unit ) \
124 if ( cond ) { \
125 dump(unit); \
126 return EXIT_SUCCESS; \
127 }
[0da3e2c]128
[ef22ad6]129static bool waiting_for_gdb = false; // flag to set cfa-cpp to wait for gdb on start
[dee1f89]130
[bffcd66]131static string PreludeDirector = "";
[4dcaed2]132
[77d601f]133static void parse_cmdline( int argc, char * argv[] );
[e6955b1]134static void dump( list< Declaration * > & translationUnit, ostream & out = cout );
[e499381]135static void dump( ast::TranslationUnit && transUnit, ostream & out = cout );
[e6955b1]136
[0afffee]137static void backtrace( int start ) { // skip first N stack frames
[74330e7]138 enum { Frames = 50, }; // maximum number of stack frames
[e6955b1]139 void * array[Frames];
[74330e7]140 size_t size = ::backtrace( array, Frames );
[0afffee]141 char ** messages = ::backtrace_symbols( array, size ); // does not demangle names
142
143 *index( messages[0], '(' ) = '\0'; // find executable name
144 cerr << "Stack back trace for: " << messages[0] << endl;
[e6955b1]145
[b542bfb]146 // skip last 2 stack frames after main
[74330e7]147 for ( unsigned int i = start; i < size - 2 && messages != nullptr; i += 1 ) {
[e6955b1]148 char * mangled_name = nullptr, * offset_begin = nullptr, * offset_end = nullptr;
[7006ba5]149
150 for ( char * p = messages[i]; *p; p += 1 ) { // find parantheses and +offset
[0afffee]151 if ( *p == '(' ) {
[46f6134]152 mangled_name = p;
[0afffee]153 } else if ( *p == '+' ) {
[e6955b1]154 offset_begin = p;
[0afffee]155 } else if ( *p == ')' ) {
[e6955b1]156 offset_end = p;
157 break;
158 } // if
159 } // for
160
161 // if line contains symbol, attempt to demangle
[b542bfb]162 int frameNo = i - start;
[e6955b1]163 if ( mangled_name && offset_begin && offset_end && mangled_name < offset_begin ) {
[0afffee]164 *mangled_name++ = '\0'; // delimit strings
[e6955b1]165 *offset_begin++ = '\0';
166 *offset_end++ = '\0';
167
[0afffee]168 int status;
[e6955b1]169 char * real_name = __cxxabiv1::__cxa_demangle( mangled_name, 0, 0, &status );
[0afffee]170 // bug in __cxa_demangle for single-character lower-case non-mangled names
[e6955b1]171 if ( status == 0 ) { // demangling successful ?
[b542bfb]172 cerr << "(" << frameNo << ") " << messages[i] << " : "
[e6955b1]173 << real_name << "+" << offset_begin << offset_end << endl;
174 } else { // otherwise, output mangled name
[b542bfb]175 cerr << "(" << frameNo << ") " << messages[i] << " : "
[0afffee]176 << mangled_name << "(/*unknown*/)+" << offset_begin << offset_end << endl;
[e6955b1]177 } // if
[0afffee]178
[e6955b1]179 free( real_name );
180 } else { // otherwise, print the whole line
[b542bfb]181 cerr << "(" << frameNo << ") " << messages[i] << endl;
[e6955b1]182 } // if
183 } // for
[b542bfb]184
[e6955b1]185 free( messages );
[b542bfb]186} // backtrace
187
[bffcd66]188#define SIGPARMS int sig __attribute__(( unused )), siginfo_t * sfp __attribute__(( unused )), ucontext_t * cxt __attribute__(( unused ))
189
[1f68d5d]190static void _Signal(struct sigaction & act, int sig, int flags ) {
[bffcd66]191 act.sa_flags = flags;
192
193 if ( sigaction( sig, &act, nullptr ) == -1 ) {
[77d601f]194 cerr << "*cfa-cpp compilation error* problem installing signal handler, error(" << errno << ") " << strerror( errno ) << endl;
[bffcd66]195 _exit( EXIT_FAILURE );
196 } // if
[1f68d5d]197}
198
199static void Signal( int sig, void (* handler)(SIGPARMS), int flags ) {
200 struct sigaction act;
201 act.sa_sigaction = (void (*)(int, siginfo_t *, void *))handler;
202 _Signal(act, sig, flags);
203} // Signal
204
205static void Signal( int sig, void (* handler)(int), int flags ) {
206 struct sigaction act;
207 act.sa_handler = handler;
208 _Signal(act, sig, flags);
[bffcd66]209} // Signal
210
211static void sigSegvBusHandler( SIGPARMS ) {
212 if ( sfp->si_addr == nullptr ) {
213 cerr << "Null pointer (nullptr) dereference." << endl;
214 } else {
215 cerr << (sig == SIGSEGV ? "Segment fault" : "Bus error") << " at memory location " << sfp->si_addr << "." << endl
216 << "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;
217 } // if
[b542bfb]218 backtrace( 2 ); // skip first 2 stack frames
[3e96559]219 abort(); // cause core dump for debugging
[e6955b1]220} // sigSegvBusHandler
[0da3e2c]221
[74330e7]222static void sigFpeHandler( SIGPARMS ) {
223 const char * msg;
224
225 switch ( sfp->si_code ) {
226 case FPE_INTDIV: case FPE_FLTDIV: msg = "divide by zero"; break;
227 case FPE_FLTOVF: msg = "overflow"; break;
228 case FPE_FLTUND: msg = "underflow"; break;
229 case FPE_FLTRES: msg = "inexact result"; break;
230 case FPE_FLTINV: msg = "invalid operation"; break;
231 default: msg = "unknown";
232 } // choose
233 cerr << "Computation error " << msg << " at location " << sfp->si_addr << endl
234 << "Possible cause is constant-expression evaluation invalid." << endl;
235 backtrace( 2 ); // skip first 2 stack frames
236 abort(); // cause core dump for debugging
237} // sigFpeHandler
238
[bffcd66]239static void sigAbortHandler( SIGPARMS ) {
[b542bfb]240 backtrace( 6 ); // skip first 6 stack frames
[1f68d5d]241 Signal( SIGABRT, SIG_DFL, SA_SIGINFO ); // reset default signal handler
[9be45a2]242 raise( SIGABRT ); // reraise SIGABRT
[b542bfb]243} // sigAbortHandler
244
[cbaee0d]245int main( int argc, char * argv[] ) {
[3b8e52c]246 FILE * input; // use FILE rather than istream because yyin is FILE
[d08beee]247 ostream * output = & cout;
[e6955b1]248 list< Declaration * > translationUnit;
[64b3cda]249 ast::TranslationUnit transUnit;
[e6955b1]250
[bffcd66]251 Signal( SIGSEGV, sigSegvBusHandler, SA_SIGINFO );
252 Signal( SIGBUS, sigSegvBusHandler, SA_SIGINFO );
[74330e7]253 Signal( SIGFPE, sigFpeHandler, SA_SIGINFO );
[bffcd66]254 Signal( SIGABRT, sigAbortHandler, SA_SIGINFO );
[b87a5ed]255
[bffcd66]256 // cout << "main" << endl;
[44bca7f]257 // for ( int i = 0; i < argc; i += 1 ) {
[bffcd66]258 // cout << '\t' << argv[i] << endl;
[44bca7f]259 // } // for
260
[e0bd0f9]261 parse_cmdline( argc, argv ); // process command-line arguments
[13de47bc]262 CodeGen::FixMain::setReplaceMain( !nomainp );
[b87a5ed]263
[ef22ad6]264 if ( waiting_for_gdb ) {
[bffcd66]265 cerr << "Waiting for gdb" << endl;
266 cerr << "run :" << endl;
267 cerr << " gdb attach " << getpid() << endl;
[dee1f89]268 raise(SIGSTOP);
[ef22ad6]269 } // if
[dee1f89]270
[b87a5ed]271 try {
[81419b5]272 // choose to read the program from a file or stdin
[3b8e52c]273 if ( optind < argc ) { // any commands after the flags ? => input file name
[b87a5ed]274 input = fopen( argv[ optind ], "r" );
[e0bd0f9]275 assertf( input, "cannot open %s because %s\n", argv[ optind ], strerror( errno ) );
[b87a5ed]276 optind += 1;
[3b8e52c]277 } else { // no input file name
[b87a5ed]278 input = stdin;
279 } // if
280
[79eaeb7]281 Stats::Time::StartGlobal();
[3c0d4cd]282 NewPass("Parse");
283 Stats::Time::StartBlock("Parse");
[675716e]284
[159c62e]285 // read in the builtins, extras, and the prelude
[de62360d]286 if ( ! nopreludep ) { // include gcc builtins
[faf8857]287 // -l is for initial build ONLY and builtins.cf is not in the lib directory so access it here.
[807ce84]288
[37fe352]289 assertf( !PreludeDirector.empty(), "Can't find prelude without option --prelude-dir must be used." );
[4dcaed2]290
[807ce84]291 // Read to gcc builtins, if not generating the cfa library
[37fe352]292 FILE * gcc_builtins = fopen( (PreludeDirector + "/gcc-builtins.cf").c_str(), "r" );
[6ce3ae9]293 assertf( gcc_builtins, "cannot open gcc-builtins.cf\n" );
[f2f595d7]294 parse( gcc_builtins, ast::Linkage::Compiler );
[81419b5]295
[159c62e]296 // read the extra prelude in, if not generating the cfa library
[37fe352]297 FILE * extras = fopen( (PreludeDirector + "/extras.cf").c_str(), "r" );
[3b8e52c]298 assertf( extras, "cannot open extras.cf\n" );
[f2f595d7]299 parse( extras, ast::Linkage::BuiltinC );
[159c62e]300
[81419b5]301 if ( ! libcfap ) {
[faf8857]302 // read the prelude in, if not generating the cfa library
[e523b07]303 FILE * prelude = fopen( (PreludeDirector + "/prelude.cfa").c_str(), "r" );
304 assertf( prelude, "cannot open prelude.cfa\n" );
[f2f595d7]305 parse( prelude, ast::Linkage::Intrinsic );
[fa4805f]306
307 // Read to cfa builtins, if not generating the cfa library
[37fe352]308 FILE * builtins = fopen( (PreludeDirector + "/builtins.cf").c_str(), "r" );
[fa4805f]309 assertf( builtins, "cannot open builtins.cf\n" );
[f2f595d7]310 parse( builtins, ast::Linkage::BuiltinCFA );
[b87a5ed]311 } // if
312 } // if
[81419b5]313
[f2f595d7]314 parse( input, libcfap ? ast::Linkage::Intrinsic : ast::Linkage::Cforall, yydebug );
[71f4e4f]315
[64b3cda]316 transUnit = buildUnit();
[b87a5ed]317
[52f9804]318 DUMP( astp, std::move( transUnit ) );
[b87a5ed]319
[3c0d4cd]320 Stats::Time::StopBlock();
[036dd5f]321
[09366b8]322 if (Stats::Counters::enabled) {
323 ast::pass_visitor_stats.avg = Stats::Counters::build<Stats::Counters::AverageCounter<double>>("Average Depth - New");
324 ast::pass_visitor_stats.max = Stats::Counters::build<Stats::Counters::MaxCounter<double>>("Max depth - New");
325 }
[b507dcd]326
[52f9804]327 PASS( "Hoist Type Decls", Validate::hoistTypeDecls, transUnit );
328
329 PASS( "Translate Exception Declarations", ControlStruct::translateExcept, transUnit );
330 DUMP( exdeclp, std::move( transUnit ) );
331 PASS( "Verify Ctor, Dtor & Assign", Validate::verifyCtorDtorAssign, transUnit );
332 PASS( "Replace Typedefs", Validate::replaceTypedef, transUnit );
333 PASS( "Fix Return Types", Validate::fixReturnTypes, transUnit );
334 PASS( "Enum and Pointer Decay", Validate::decayEnumsAndPointers, transUnit );
335
336 PASS( "Link Reference To Types", Validate::linkReferenceToTypes, transUnit );
337
[14c0f7b]338 PASS( "Forall Pointer Decay", Validate::decayForallPointers, transUnit );
[52f9804]339 PASS( "Fix Qualified Types", Validate::fixQualifiedTypes, transUnit );
340 PASS( "Eliminate Typedef", Validate::eliminateTypedef, transUnit );
[2c38b15]341 PASS( "Hoist Struct", Validate::hoistStruct, transUnit );
[52f9804]342 PASS( "Validate Generic Parameters", Validate::fillGenericParameters, transUnit );
343 PASS( "Translate Dimensions", Validate::translateDimensionParameters, transUnit );
344 PASS( "Check Function Returns", Validate::checkReturnStatements, transUnit );
345 PASS( "Fix Return Statements", InitTweak::fixReturnStatements, transUnit );
346 PASS( "Implement Concurrent Keywords", Concurrency::implementKeywords, transUnit );
[14c0f7b]347 PASS( "Fix Unique Ids", Validate::fixUniqueIds, transUnit );
[cf3da24]348 PASS( "Implement Corun", Concurrency::implementCorun, transUnit );
[52f9804]349 PASS( "Hoist Control Declarations", ControlStruct::hoistControlDecls, transUnit );
350
351 PASS( "Generate Autogen Routines", Validate::autogenerateRoutines, transUnit );
352
353 PASS( "Implement Actors", Concurrency::implementActors, transUnit );
354 PASS( "Implement Virtual Destructors", Virtual::implementVirtDtors, transUnit );
355 PASS( "Implement Mutex", Concurrency::implementMutex, transUnit );
356 PASS( "Implement Thread Start", Concurrency::implementThreadStarter, transUnit );
357 PASS( "Compound Literal", Validate::handleCompoundLiterals, transUnit );
358 PASS( "Set Length From Initializer", Validate::setLengthFromInitializer, transUnit );
359 PASS( "Find Global Decls", Validate::findGlobalDecls, transUnit );
360 PASS( "Fix Label Address", Validate::fixLabelAddresses, transUnit );
[09366b8]361
362 if ( symtabp ) {
363 return EXIT_SUCCESS;
364 } // if
[ccbc65c]365
[09366b8]366 if ( expraltp ) {
367 ResolvExpr::printCandidates( transUnit );
368 return EXIT_SUCCESS;
369 } // if
[3606fe4]370
[52f9804]371 DUMP( validp, std::move( transUnit ) );
[6a896b0]372
[52f9804]373 PASS( "Translate Throws", ControlStruct::translateThrows, transUnit );
374 PASS( "Fix Labels", ControlStruct::fixLabels, transUnit );
[14c0f7b]375 PASS( "Implement Waituntil", Concurrency::generateWaitUntil, transUnit );
[52f9804]376 PASS( "Fix Names", CodeGen::fixNames, transUnit );
377 PASS( "Gen Init", InitTweak::genInit, transUnit );
378 PASS( "Expand Member Tuples" , Tuples::expandMemberTuples, transUnit );
[ce36b55]379
[09366b8]380 if ( libcfap ) {
381 // Generate the bodies of cfa library functions.
382 LibCfa::makeLibCfa( transUnit );
383 } // if
[1622af5]384
[09366b8]385 if ( declstatsp ) {
386 printDeclStats( transUnit );
387 return EXIT_SUCCESS;
388 } // if
[1622af5]389
[52f9804]390 DUMP( bresolvep, std::move( transUnit ) );
[1622af5]391
[09366b8]392 if ( resolvprotop ) {
393 dumpAsResolverProto( transUnit );
394 return EXIT_SUCCESS;
395 } // if
[9f5a19fa]396
[52f9804]397 PASS( "Resolve", ResolvExpr::resolve, transUnit );
398 DUMP( exprp, std::move( transUnit ) );
[68fe946e]399
[52f9804]400 PASS( "Fix Init", InitTweak::fix, transUnit, buildingLibrary() );
[d3652df]401 PASS( "Erase With", ResolvExpr::eraseWith, transUnit );
[68fe946e]402
[09366b8]403 // fix ObjectDecl - replaces ConstructorInit nodes
[52f9804]404 DUMP( ctorinitp, std::move( transUnit ) );
[68fe946e]405
[09366b8]406 // Currently not working due to unresolved issues with UniqueExpr
[52f9804]407 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
[68fe946e]408
[52f9804]409 PASS( "Translate Tries", ControlStruct::translateTries, transUnit );
410 PASS( "Gen Waitfor", Concurrency::generateWaitFor, transUnit );
[4615ac8]411
[09366b8]412 // Needs to happen before tuple types are expanded.
[52f9804]413 PASS( "Convert Specializations", GenPoly::convertSpecializations, transUnit );
[81419b5]414
[52f9804]415 PASS( "Expand Tuples", Tuples::expandTuples, transUnit );
416 DUMP( tuplep, std::move( transUnit ) );
[626dbc10]417
[09366b8]418 // Must come after Translate Tries.
[52f9804]419 PASS( "Virtual Expand Casts", Virtual::expandCasts, transUnit );
[141b786]420
[52f9804]421 PASS( "Instantiate Generics", GenPoly::instantiateGeneric, transUnit );
422 DUMP( genericsp, std::move( transUnit ) );
[b4f8808]423
[52f9804]424 PASS( "Convert L-Value", GenPoly::convertLvalue, transUnit );
[1ee0a4da]425 DUMP( bboxp, std::move( transUnit ) );
426 PASS( "Box", GenPoly::box, transUnit );
[3cbe320]427 PASS( "Link-Once", CodeGen::translateLinkOnce, transUnit );
[7fffb1b]428
429 translationUnit = convert( std::move( transUnit ) );
[53d3ab4b]430
[aff7e86]431 // Code has been lowered to C, now we can start generation.
432
[52f9804]433 DUMP( bcodegenp, translationUnit );
[8905f56]434
[13de47bc]435 if ( optind < argc ) { // any commands after the flags and input file ? => output file name
436 output = new ofstream( argv[ optind ] );
437 } // if
[0270824]438
[7b15d7a]439 CodeTools::fillLocations( translationUnit );
[52f9804]440 PASS( "Code Gen", CodeGen::generate, translationUnit, *output, ! genproto, prettycodegenp, true, linemarks );
[0270824]441
[8e48fca4]442 CodeGen::FixMain::fix( translationUnit, *output,
443 (PreludeDirector + "/bootloader.c").c_str() );
[e6955b1]444 if ( output != &cout ) {
[b87a5ed]445 delete output;
446 } // if
[77d601f]447 } catch ( SemanticErrorException & e ) {
[b87a5ed]448 if ( errorp ) {
[e6955b1]449 cerr << "---AST at error:---" << endl;
[64b3cda]450 // We check which section the errors came from without looking at
451 // transUnit because std::move means it could look like anything.
452 if ( !translationUnit.empty() ) {
453 dump( translationUnit, cerr );
454 } else {
455 dump( std::move( transUnit ), cerr );
456 }
[e6955b1]457 cerr << endl << "---End of AST, begin error message:---\n" << endl;
[926af74]458 } // if
[d55d7a6]459 e.print();
[e6955b1]460 if ( output != &cout ) {
[b87a5ed]461 delete output;
462 } // if
[3e96559]463 return EXIT_FAILURE;
[77d601f]464 } catch ( std::bad_alloc & ) {
465 cerr << "*cfa-cpp compilation error* std::bad_alloc" << endl;
466 backtrace( 1 );
467 abort();
[3e96559]468 } catch ( ... ) {
[bffcd66]469 exception_ptr eptr = current_exception();
[4990812]470 try {
471 if (eptr) {
[bffcd66]472 rethrow_exception(eptr);
[3e96559]473 } else {
[77d601f]474 cerr << "*cfa-cpp compilation error* exception uncaught and unknown" << endl;
[3e96559]475 } // if
[77d601f]476 } catch( const exception & e ) {
477 cerr << "*cfa-cpp compilation error* uncaught exception \"" << e.what() << "\"\n";
[3e96559]478 } // try
479 return EXIT_FAILURE;
480 } // try
[b87a5ed]481
[39786813]482 deleteAll( translationUnit );
[1cb7fab2]483 Stats::print();
[3e96559]484 return EXIT_SUCCESS;
[d9a0e76]485} // main
[51b73452]486
[0da3e2c]487
[372b6d3]488static const char optstring[] = ":c:ghilLmNnpdP:S:twW:D:";
[3e96559]489
[62ce290]490enum { PreludeDir = 128 };
[3e96559]491static struct option long_opts[] = {
[1a69a90]492 { "colors", required_argument, nullptr, 'c' },
493 { "gdb", no_argument, nullptr, 'g' },
[3e96559]494 { "help", no_argument, nullptr, 'h' },
[372b6d3]495 { "invariant", no_argument, nullptr, 'i' },
[3e96559]496 { "libcfa", no_argument, nullptr, 'l' },
[62ce290]497 { "linemarks", no_argument, nullptr, 'L' },
[372b6d3]498 { "no-main", no_argument, nullptr, 'm' },
[62ce290]499 { "no-linemarks", no_argument, nullptr, 'N' },
500 { "no-prelude", no_argument, nullptr, 'n' },
[3e96559]501 { "prototypes", no_argument, nullptr, 'p' },
[7215000]502 { "deterministic-out", no_argument, nullptr, 'd' },
[62ce290]503 { "print", required_argument, nullptr, 'P' },
504 { "prelude-dir", required_argument, nullptr, PreludeDir },
505 { "statistics", required_argument, nullptr, 'S' },
[3e96559]506 { "tree", no_argument, nullptr, 't' },
507 { "", no_argument, nullptr, 0 }, // -w
508 { "", no_argument, nullptr, 0 }, // -W
509 { "", no_argument, nullptr, 0 }, // -D
510 { nullptr, 0, nullptr, 0 }
511}; // long_opts
512
513static const char * description[] = {
[aa88cb9a]514 "diagnostic color: never, always, auto", // -c
[3e9de01]515 "wait for gdb to attach", // -g
[aa88cb9a]516 "print translator help message", // -h
[372b6d3]517 "invariant checking during AST passes", // -i
[3e9de01]518 "generate libcfa.c", // -l
519 "generate line marks", // -L
520 "do not replace main", // -m
521 "do not generate line marks", // -N
522 "do not read prelude", // -n
[aa88cb9a]523 "do not generate prelude prototypes => prelude not printed", // -p
[3e9de01]524 "only print deterministic output", // -d
525 "print", // -P
[62ce290]526 "<directory> prelude directory for debug/nodebug", // no flag
[aa88cb9a]527 "<option-list> enable profiling information: counters, heap, time, all, none", // -S
[3e9de01]528 "building cfa standard lib", // -t
529 "", // -w
530 "", // -W
531 "", // -D
[3e96559]532}; // description
533
[0c0f548]534static_assert( sizeof( long_opts ) / sizeof( long_opts[0] ) - 1 == sizeof( description ) / sizeof( description[0] ), "Long opts and description must match" );
[62ce290]535
536static struct Printopts {
537 const char * name;
538 int & flag;
539 int val;
540 const char * descript;
541} printopts[] = {
[0e464f6]542 { "ascodegen", codegenp, true, "print AST as codegen rather than AST" },
543 { "asterr", errorp, true, "print AST on error" },
[12f671e]544 { "declstats", declstatsp, true, "print code property statistics" },
545 { "parse", yydebug, true, "print yacc (parsing) debug information" },
[62ce290]546 { "pretty", prettycodegenp, true, "prettyprint for ascodegen flag" },
547 { "rproto", resolvprotop, true, "resolver-proto instance" },
[0e464f6]548 { "rsteps", resolvep, true, "print resolver steps" },
[5f917740]549 // AST dumps
[0e464f6]550 { "ast", astp, true, "print AST after parsing" },
[5f917740]551 { "excpdecl", exdeclp, true, "print AST after translating exception decls" },
[0e464f6]552 { "symevt", symtabp, true, "print AST after symbol table events" },
[5f917740]553 { "expralt", expraltp, true, "print AST after expressions alternatives" },
554 { "valdecl", validp, true, "print AST after declaration validation pass" },
555 { "bresolver", bresolvep, true, "print AST before resolver step" },
556 { "expranly", exprp, true, "print AST after expression analysis" },
[0e464f6]557 { "ctordtor", ctorinitp, true, "print AST after ctor/dtor are replaced" },
558 { "tuple", tuplep, true, "print AST after tuple expansion" },
[5f917740]559 { "instgen", genericsp, true, "print AST after instantiate generics" },
560 { "bbox", bboxp, true, "print AST before box pass" },
561 { "bcodegen", bcodegenp, true, "print AST before code generation" },
[62ce290]562};
563enum { printoptsSize = sizeof( printopts ) / sizeof( printopts[0] ) };
564
[77d601f]565static void usage( char * argv[] ) {
[e0bd0f9]566 cout << "Usage: " << argv[0] << " [options] [input-file (default stdin)] [output-file (default stdout)], where options are:" << endl;
[3e96559]567 int i = 0, j = 1; // j skips starting colon
568 for ( ; long_opts[i].name != 0 && optstring[j] != '\0'; i += 1, j += 1 ) {
569 if ( long_opts[i].name[0] != '\0' ) { // hidden option, internal usage only
[62ce290]570 if ( strcmp( long_opts[i].name, "prelude-dir" ) != 0 ) { // flag
571 cout << " -" << optstring[j] << ",";
572 } else { // no flag
573 j -= 1; // compensate
574 cout << " ";
575 } // if
576 cout << " --" << left << setw(12) << long_opts[i].name << " ";
577 if ( strcmp( long_opts[i].name, "print" ) == 0 ) {
578 cout << "one of: " << endl;
579 for ( int i = 0; i < printoptsSize; i += 1 ) {
580 cout << setw(10) << " " << left << setw(10) << printopts[i].name << " " << printopts[i].descript << endl;
581 } // for
582 } else {
583 cout << description[i] << endl;
584 } // if
[3e96559]585 } // if
[62ce290]586 if ( optstring[j + 1] == ':' ) j += 1;
[3e96559]587 } // for
588 if ( long_opts[i].name != 0 || optstring[j] != '\0' ) assertf( false, "internal error, mismatch of option flags and names\n" );
589 exit( EXIT_FAILURE );
590} // usage
591
[e0bd0f9]592static void parse_cmdline( int argc, char * argv[] ) {
[0da3e2c]593 opterr = 0; // (global) prevent getopt from printing error messages
594
[c5e5109]595 bool Wsuppress = false, Werror = false;
[0da3e2c]596 int c;
[3e96559]597 while ( (c = getopt_long( argc, argv, optstring, long_opts, nullptr )) != -1 ) {
[0da3e2c]598 switch ( c ) {
[1a69a90]599 case 'c': // diagnostic colors
600 if ( strcmp( optarg, "always" ) == 0 ) {
601 ErrorHelpers::colors = ErrorHelpers::Colors::Always;
602 } else if ( strcmp( optarg, "never" ) == 0 ) {
603 ErrorHelpers::colors = ErrorHelpers::Colors::Never;
604 } else if ( strcmp( optarg, "auto" ) == 0 ) {
605 ErrorHelpers::colors = ErrorHelpers::Colors::Auto;
606 } // if
607 break;
[3e96559]608 case 'h': // help message
609 usage( argv ); // no return
[53d3ab4b]610 break;
[372b6d3]611 case 'i': // invariant checking
612 invariant = true;
613 break;
[3e96559]614 case 'l': // generate libcfa.c
[0da3e2c]615 libcfap = true;
616 break;
[62ce290]617 case 'L': // generate line marks
[6de43b6]618 linemarks = true;
[c850687]619 break;
[3e96559]620 case 'm': // do not replace main
621 nomainp = true;
[0da3e2c]622 break;
[62ce290]623 case 'N': // do not generate line marks
[6de43b6]624 linemarks = false;
[c59bde6]625 break;
[62ce290]626 case 'n': // do not read prelude
[3e96559]627 nopreludep = true;
[0da3e2c]628 break;
[62ce290]629 case 'p': // generate prototypes for prelude functions
630 genproto = true;
[0da3e2c]631 break;
[7215000]632 case 'd': // don't print non-deterministic output
[a77257be]633 deterministic_output = true;
634 break;
[62ce290]635 case 'P': // print options
636 for ( int i = 0;; i += 1 ) {
637 if ( i == printoptsSize ) {
638 cout << "Unknown --print option " << optarg << endl;
639 goto Default;
640 } // if
641 if ( strcmp( optarg, printopts[i].name ) == 0 ) {
642 printopts[i].flag = printopts[i].val;
643 break;
644 } // if
645 } // for
[0da3e2c]646 break;
[62ce290]647 case PreludeDir: // prelude directory for debug/nodebug, hidden
648 PreludeDirector = optarg;
[3b3491b6]649 break;
[3e96559]650 case 'S': // enable profiling information, argument comma separated list of names
651 Stats::parse_params( optarg );
[ebcc940]652 break;
[dee1f89]653 case 't': // building cfa stdlib
[0da3e2c]654 treep = true;
655 break;
[dee1f89]656 case 'g': // wait for gdb
657 waiting_for_gdb = true;
658 break;
[3e96559]659 case 'w': // suppress all warnings, hidden
[c5e5109]660 Wsuppress = true;
[44bca7f]661 break;
[3e96559]662 case 'W': // coordinate gcc -W with CFA, hidden
[44bca7f]663 if ( strcmp( optarg, "all" ) == 0 ) {
[68e9ace]664 SemanticWarning_EnableAll();
[44bca7f]665 } else if ( strcmp( optarg, "error" ) == 0 ) {
666 Werror = true;
667 } else {
668 char * warning = optarg;
669 Severity s;
670 if ( strncmp( optarg, "no-", 3 ) == 0 ) {
671 warning += 3;
672 s = Severity::Suppress;
673 } else {
674 s = Severity::Warn;
675 } // if
[68e9ace]676 SemanticWarning_Set( warning, s );
[44bca7f]677 } // if
678 break;
[3e96559]679 case 'D': // ignore -Dxxx, forwarded by cpp, hidden
[0da3e2c]680 break;
[3e96559]681 case '?': // unknown option
682 if ( optopt ) { // short option ?
683 cout << "Unknown option -" << (char)optopt << endl;
684 } else {
685 cout << "Unknown option " << argv[optind - 1] << endl;
686 } // if
687 goto Default;
688 case ':': // missing option
[ae47a23]689 if ( optopt ) { // short option ?
[3e96559]690 cout << "Missing option for -" << (char)optopt << endl;
[ae47a23]691 } else {
[3e96559]692 cout << "Missing option for " << argv[optind - 1] << endl;
[ae47a23]693 } // if
[3e96559]694 goto Default;
695 Default:
696 default:
697 usage( argv ); // no return
[0da3e2c]698 } // switch
699 } // while
[44bca7f]700
701 if ( Werror ) {
[68e9ace]702 SemanticWarning_WarningAsError();
[44bca7f]703 } // if
[c5e5109]704 if ( Wsuppress ) {
705 SemanticWarning_SuppressAll();
706 } // if
[44bca7f]707 // for ( const auto w : WarningFormats ) {
708 // cout << w.name << ' ' << (int)w.severity << endl;
709 // } // for
[0da3e2c]710} // parse_cmdline
711
[1ab4ce2]712static bool notPrelude( Declaration * decl ) {
713 return ! LinkageSpec::isBuiltin( decl->get_linkage() );
[0da3e2c]714} // notPrelude
[1ab4ce2]715
[e6955b1]716static void dump( list< Declaration * > & translationUnit, ostream & out ) {
717 list< Declaration * > decls;
[926af74]718
[62ce290]719 if ( genproto ) {
[e6955b1]720 filter( translationUnit.begin(), translationUnit.end(), back_inserter( decls ), notPrelude );
[1ab4ce2]721 } else {
722 decls = translationUnit;
[926af74]723 } // if
[1ab4ce2]724
[e39241b]725 // depending on commandline options, either generate code or dump the AST
726 if ( codegenp ) {
[62ce290]727 CodeGen::generate( decls, out, ! genproto, prettycodegenp );
[e39241b]728 } else {
729 printAll( decls, out );
[3e96559]730 } // if
[7f5566b]731 deleteAll( translationUnit );
[0da3e2c]732} // dump
[1ab4ce2]733
[e499381]734static void dump( ast::TranslationUnit && transUnit, ostream & out ) {
[09f34a84]735 std::list< Declaration * > translationUnit = convert( std::move( transUnit ) );
[e499381]736 dump( translationUnit, out );
737}
738
[51b73452]739// Local Variables: //
[b87a5ed]740// tab-width: 4 //
741// mode: c++ //
742// compile-command: "make install" //
[51b73452]743// End: //
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