1 //===- LLVMCConfigurationEmitter.cpp - Generate LLVMC config ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open
6 // Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This tablegen backend is responsible for emitting LLVMC configuration code.
12 //===----------------------------------------------------------------------===//
14 #include "LLVMCConfigurationEmitter.h"
17 #include "llvm/ADT/IntrusiveRefCntPtr.h"
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/ADT/StringExtras.h"
20 #include "llvm/ADT/StringMap.h"
21 #include "llvm/ADT/StringSet.h"
32 //===----------------------------------------------------------------------===//
35 typedef std::vector<Record*> RecordVector;
36 typedef std::vector<std::string> StrVector;
38 //===----------------------------------------------------------------------===//
42 static const unsigned TabWidth = 4;
43 static const unsigned Indent1 = TabWidth*1;
44 static const unsigned Indent2 = TabWidth*2;
45 static const unsigned Indent3 = TabWidth*3;
47 // Default help string.
48 static const char * const DefaultHelpString = "NO HELP MESSAGE PROVIDED";
50 // Name for the "sink" option.
51 static const char * const SinkOptionName = "AutoGeneratedSinkOption";
55 //===----------------------------------------------------------------------===//
58 /// Id - An 'identity' function object.
61 void operator()(const T0&) const {
63 template<typename T0, typename T1>
64 void operator()(const T0&, const T1&) const {
66 template<typename T0, typename T1, typename T2>
67 void operator()(const T0&, const T1&, const T2&) const {
71 int InitPtrToInt(const Init* ptr) {
72 const IntInit& val = dynamic_cast<const IntInit&>(*ptr);
73 return val.getValue();
76 const std::string& InitPtrToString(const Init* ptr) {
77 const StringInit& val = dynamic_cast<const StringInit&>(*ptr);
78 return val.getValue();
81 const ListInit& InitPtrToList(const Init* ptr) {
82 const ListInit& val = dynamic_cast<const ListInit&>(*ptr);
86 const DagInit& InitPtrToDag(const Init* ptr) {
87 const DagInit& val = dynamic_cast<const DagInit&>(*ptr);
91 const std::string GetOperatorName(const DagInit* D) {
92 return D->getOperator()->getAsString();
95 const std::string GetOperatorName(const DagInit& D) {
96 return GetOperatorName(&D);
99 // checkNumberOfArguments - Ensure that the number of args in d is
100 // greater than or equal to min_arguments, otherwise throw an exception.
101 void checkNumberOfArguments (const DagInit* d, unsigned minArgs) {
102 if (!d || d->getNumArgs() < minArgs)
103 throw GetOperatorName(d) + ": too few arguments!";
105 void checkNumberOfArguments (const DagInit& d, unsigned minArgs) {
106 checkNumberOfArguments(&d, minArgs);
109 // isDagEmpty - is this DAG marked with an empty marker?
110 bool isDagEmpty (const DagInit* d) {
111 return GetOperatorName(d) == "empty_dag_marker";
114 // EscapeVariableName - Escape commas and other symbols not allowed
115 // in the C++ variable names. Makes it possible to use options named
116 // like "Wa," (useful for prefix options).
117 std::string EscapeVariableName(const std::string& Var) {
119 for (unsigned i = 0; i != Var.size(); ++i) {
120 char cur_char = Var[i];
121 if (cur_char == ',') {
124 else if (cur_char == '+') {
127 else if (cur_char == '-') {
131 ret.push_back(cur_char);
137 /// oneOf - Does the input string contain this character?
138 bool oneOf(const char* lst, char c) {
146 template <class I, class S>
147 void checkedIncrement(I& P, I E, S ErrorString) {
153 // apply is needed because C++'s syntax doesn't let us construct a function
154 // object and call it in the same statement.
155 template<typename F, typename T0>
156 void apply(F Fun, T0& Arg0) {
160 template<typename F, typename T0, typename T1>
161 void apply(F Fun, T0& Arg0, T1& Arg1) {
162 return Fun(Arg0, Arg1);
165 //===----------------------------------------------------------------------===//
166 /// Back-end specific code
169 /// OptionType - One of six different option types. See the
170 /// documentation for detailed description of differences.
171 namespace OptionType {
173 enum OptionType { Alias, Switch, Parameter, ParameterList,
176 bool IsAlias(OptionType t) {
180 bool IsList (OptionType t) {
181 return (t == ParameterList || t == PrefixList);
184 bool IsSwitch (OptionType t) {
185 return (t == Switch);
188 bool IsParameter (OptionType t) {
189 return (t == Parameter || t == Prefix);
194 OptionType::OptionType stringToOptionType(const std::string& T) {
195 if (T == "alias_option")
196 return OptionType::Alias;
197 else if (T == "switch_option")
198 return OptionType::Switch;
199 else if (T == "parameter_option")
200 return OptionType::Parameter;
201 else if (T == "parameter_list_option")
202 return OptionType::ParameterList;
203 else if (T == "prefix_option")
204 return OptionType::Prefix;
205 else if (T == "prefix_list_option")
206 return OptionType::PrefixList;
208 throw "Unknown option type: " + T + '!';
211 namespace OptionDescriptionFlags {
212 enum OptionDescriptionFlags { Required = 0x1, Hidden = 0x2,
213 ReallyHidden = 0x4, Extern = 0x8,
214 OneOrMore = 0x10, ZeroOrOne = 0x20 };
217 /// OptionDescription - Represents data contained in a single
218 /// OptionList entry.
219 struct OptionDescription {
220 OptionType::OptionType Type;
227 OptionDescription(OptionType::OptionType t = OptionType::Switch,
228 const std::string& n = "",
229 const std::string& h = DefaultHelpString)
230 : Type(t), Name(n), Flags(0x0), Help(h), MultiVal(1), InitVal(0)
233 /// GenTypeDeclaration - Returns the C++ variable type of this
235 const char* GenTypeDeclaration() const;
237 /// GenVariableName - Returns the variable name used in the
238 /// generated C++ code.
239 std::string GenVariableName() const;
241 /// Merge - Merge two option descriptions.
242 void Merge (const OptionDescription& other);
244 // Misc convenient getters/setters.
246 bool isAlias() const;
248 bool isMultiVal() const;
250 bool isExtern() const;
253 bool isRequired() const;
256 bool isOneOrMore() const;
259 bool isZeroOrOne() const;
262 bool isHidden() const;
265 bool isReallyHidden() const;
266 void setReallyHidden();
268 bool isSwitch() const
269 { return OptionType::IsSwitch(this->Type); }
271 bool isParameter() const
272 { return OptionType::IsParameter(this->Type); }
275 { return OptionType::IsList(this->Type); }
279 void OptionDescription::Merge (const OptionDescription& other)
281 if (other.Type != Type)
282 throw "Conflicting definitions for the option " + Name + "!";
284 if (Help == other.Help || Help == DefaultHelpString)
286 else if (other.Help != DefaultHelpString) {
287 llvm::errs() << "Warning: several different help strings"
288 " defined for option " + Name + "\n";
291 Flags |= other.Flags;
294 bool OptionDescription::isAlias() const {
295 return OptionType::IsAlias(this->Type);
298 bool OptionDescription::isMultiVal() const {
302 bool OptionDescription::isExtern() const {
303 return Flags & OptionDescriptionFlags::Extern;
305 void OptionDescription::setExtern() {
306 Flags |= OptionDescriptionFlags::Extern;
309 bool OptionDescription::isRequired() const {
310 return Flags & OptionDescriptionFlags::Required;
312 void OptionDescription::setRequired() {
313 Flags |= OptionDescriptionFlags::Required;
316 bool OptionDescription::isOneOrMore() const {
317 return Flags & OptionDescriptionFlags::OneOrMore;
319 void OptionDescription::setOneOrMore() {
320 Flags |= OptionDescriptionFlags::OneOrMore;
323 bool OptionDescription::isZeroOrOne() const {
324 return Flags & OptionDescriptionFlags::ZeroOrOne;
326 void OptionDescription::setZeroOrOne() {
327 Flags |= OptionDescriptionFlags::ZeroOrOne;
330 bool OptionDescription::isHidden() const {
331 return Flags & OptionDescriptionFlags::Hidden;
333 void OptionDescription::setHidden() {
334 Flags |= OptionDescriptionFlags::Hidden;
337 bool OptionDescription::isReallyHidden() const {
338 return Flags & OptionDescriptionFlags::ReallyHidden;
340 void OptionDescription::setReallyHidden() {
341 Flags |= OptionDescriptionFlags::ReallyHidden;
344 const char* OptionDescription::GenTypeDeclaration() const {
346 case OptionType::Alias:
348 case OptionType::PrefixList:
349 case OptionType::ParameterList:
350 return "cl::list<std::string>";
351 case OptionType::Switch:
352 return "cl::opt<bool>";
353 case OptionType::Parameter:
354 case OptionType::Prefix:
356 return "cl::opt<std::string>";
360 std::string OptionDescription::GenVariableName() const {
361 const std::string& EscapedName = EscapeVariableName(Name);
363 case OptionType::Alias:
364 return "AutoGeneratedAlias_" + EscapedName;
365 case OptionType::PrefixList:
366 case OptionType::ParameterList:
367 return "AutoGeneratedList_" + EscapedName;
368 case OptionType::Switch:
369 return "AutoGeneratedSwitch_" + EscapedName;
370 case OptionType::Prefix:
371 case OptionType::Parameter:
373 return "AutoGeneratedParameter_" + EscapedName;
377 /// OptionDescriptions - An OptionDescription array plus some helper
379 class OptionDescriptions {
380 typedef StringMap<OptionDescription> container_type;
382 /// Descriptions - A list of OptionDescriptions.
383 container_type Descriptions;
386 /// FindOption - exception-throwing wrapper for find().
387 const OptionDescription& FindOption(const std::string& OptName) const;
389 // Wrappers for FindOption that throw an exception in case the option has a
391 const OptionDescription& FindSwitch(const std::string& OptName) const;
392 const OptionDescription& FindParameter(const std::string& OptName) const;
393 const OptionDescription& FindList(const std::string& OptName) const;
394 const OptionDescription&
395 FindListOrParameter(const std::string& OptName) const;
397 /// insertDescription - Insert new OptionDescription into
398 /// OptionDescriptions list
399 void InsertDescription (const OptionDescription& o);
401 // Support for STL-style iteration
402 typedef container_type::const_iterator const_iterator;
403 const_iterator begin() const { return Descriptions.begin(); }
404 const_iterator end() const { return Descriptions.end(); }
407 const OptionDescription&
408 OptionDescriptions::FindOption(const std::string& OptName) const {
409 const_iterator I = Descriptions.find(OptName);
410 if (I != Descriptions.end())
413 throw OptName + ": no such option!";
416 const OptionDescription&
417 OptionDescriptions::FindSwitch(const std::string& OptName) const {
418 const OptionDescription& OptDesc = this->FindOption(OptName);
419 if (!OptDesc.isSwitch())
420 throw OptName + ": incorrect option type - should be a switch!";
424 const OptionDescription&
425 OptionDescriptions::FindList(const std::string& OptName) const {
426 const OptionDescription& OptDesc = this->FindOption(OptName);
427 if (!OptDesc.isList())
428 throw OptName + ": incorrect option type - should be a list!";
432 const OptionDescription&
433 OptionDescriptions::FindParameter(const std::string& OptName) const {
434 const OptionDescription& OptDesc = this->FindOption(OptName);
435 if (!OptDesc.isParameter())
436 throw OptName + ": incorrect option type - should be a parameter!";
440 const OptionDescription&
441 OptionDescriptions::FindListOrParameter(const std::string& OptName) const {
442 const OptionDescription& OptDesc = this->FindOption(OptName);
443 if (!OptDesc.isList() && !OptDesc.isParameter())
445 + ": incorrect option type - should be a list or parameter!";
449 void OptionDescriptions::InsertDescription (const OptionDescription& o) {
450 container_type::iterator I = Descriptions.find(o.Name);
451 if (I != Descriptions.end()) {
452 OptionDescription& D = I->second;
456 Descriptions[o.Name] = o;
460 /// HandlerTable - A base class for function objects implemented as
461 /// 'tables of handlers'.
462 template <typename Handler>
465 // Implementation details.
467 /// HandlerMap - A map from property names to property handlers
468 typedef StringMap<Handler> HandlerMap;
470 static HandlerMap Handlers_;
471 static bool staticMembersInitialized_;
475 Handler GetHandler (const std::string& HandlerName) const {
476 typename HandlerMap::iterator method = Handlers_.find(HandlerName);
478 if (method != Handlers_.end()) {
479 Handler h = method->second;
483 throw "No handler found for property " + HandlerName + "!";
487 void AddHandler(const char* Property, Handler H) {
488 Handlers_[Property] = H;
493 template <class FunctionObject>
494 void InvokeDagInitHandler(FunctionObject* Obj, Init* i) {
495 typedef void (FunctionObject::*Handler) (const DagInit*);
497 const DagInit& property = InitPtrToDag(i);
498 const std::string& property_name = GetOperatorName(property);
499 Handler h = Obj->GetHandler(property_name);
501 ((Obj)->*(h))(&property);
504 template <typename H>
505 typename HandlerTable<H>::HandlerMap HandlerTable<H>::Handlers_;
507 template <typename H>
508 bool HandlerTable<H>::staticMembersInitialized_ = false;
511 /// CollectOptionProperties - Function object for iterating over an
512 /// option property list.
513 class CollectOptionProperties;
514 typedef void (CollectOptionProperties::* CollectOptionPropertiesHandler)
517 class CollectOptionProperties
518 : public HandlerTable<CollectOptionPropertiesHandler>
522 /// optDescs_ - OptionDescriptions table. This is where the
523 /// information is stored.
524 OptionDescription& optDesc_;
528 explicit CollectOptionProperties(OptionDescription& OD)
531 if (!staticMembersInitialized_) {
532 AddHandler("extern", &CollectOptionProperties::onExtern);
533 AddHandler("help", &CollectOptionProperties::onHelp);
534 AddHandler("hidden", &CollectOptionProperties::onHidden);
535 AddHandler("init", &CollectOptionProperties::onInit);
536 AddHandler("multi_val", &CollectOptionProperties::onMultiVal);
537 AddHandler("one_or_more", &CollectOptionProperties::onOneOrMore);
538 AddHandler("really_hidden", &CollectOptionProperties::onReallyHidden);
539 AddHandler("required", &CollectOptionProperties::onRequired);
540 AddHandler("zero_or_one", &CollectOptionProperties::onZeroOrOne);
542 staticMembersInitialized_ = true;
546 /// operator() - Just forwards to the corresponding property
548 void operator() (Init* i) {
549 InvokeDagInitHandler(this, i);
554 /// Option property handlers --
555 /// Methods that handle option properties such as (help) or (hidden).
557 void onExtern (const DagInit* d) {
558 checkNumberOfArguments(d, 0);
559 optDesc_.setExtern();
562 void onHelp (const DagInit* d) {
563 checkNumberOfArguments(d, 1);
564 optDesc_.Help = InitPtrToString(d->getArg(0));
567 void onHidden (const DagInit* d) {
568 checkNumberOfArguments(d, 0);
569 optDesc_.setHidden();
572 void onReallyHidden (const DagInit* d) {
573 checkNumberOfArguments(d, 0);
574 optDesc_.setReallyHidden();
577 void onRequired (const DagInit* d) {
578 checkNumberOfArguments(d, 0);
579 if (optDesc_.isOneOrMore())
580 throw std::string("An option can't have both (required) "
581 "and (one_or_more) properties!");
582 optDesc_.setRequired();
585 void onInit (const DagInit* d) {
586 checkNumberOfArguments(d, 1);
587 Init* i = d->getArg(0);
588 const std::string& str = i->getAsString();
590 bool correct = optDesc_.isParameter() && dynamic_cast<StringInit*>(i);
591 correct |= (optDesc_.isSwitch() && (str == "true" || str == "false"));
594 throw std::string("Incorrect usage of the 'init' option property!");
596 optDesc_.InitVal = i;
599 void onOneOrMore (const DagInit* d) {
600 checkNumberOfArguments(d, 0);
601 if (optDesc_.isRequired() || optDesc_.isZeroOrOne())
602 throw std::string("Only one of (required), (zero_or_one) or "
603 "(one_or_more) properties is allowed!");
604 if (!OptionType::IsList(optDesc_.Type))
605 llvm::errs() << "Warning: specifying the 'one_or_more' property "
606 "on a non-list option will have no effect.\n";
607 optDesc_.setOneOrMore();
610 void onZeroOrOne (const DagInit* d) {
611 checkNumberOfArguments(d, 0);
612 if (optDesc_.isRequired() || optDesc_.isOneOrMore())
613 throw std::string("Only one of (required), (zero_or_one) or "
614 "(one_or_more) properties is allowed!");
615 if (!OptionType::IsList(optDesc_.Type))
616 llvm::errs() << "Warning: specifying the 'zero_or_one' property"
617 "on a non-list option will have no effect.\n";
618 optDesc_.setZeroOrOne();
621 void onMultiVal (const DagInit* d) {
622 checkNumberOfArguments(d, 1);
623 int val = InitPtrToInt(d->getArg(0));
625 throw std::string("Error in the 'multi_val' property: "
626 "the value must be greater than 1!");
627 if (!OptionType::IsList(optDesc_.Type))
628 throw std::string("The multi_val property is valid only "
630 optDesc_.MultiVal = val;
635 /// AddOption - A function object that is applied to every option
636 /// description. Used by CollectOptionDescriptions.
639 OptionDescriptions& OptDescs_;
642 explicit AddOption(OptionDescriptions& OD) : OptDescs_(OD)
645 void operator()(const Init* i) {
646 const DagInit& d = InitPtrToDag(i);
647 checkNumberOfArguments(&d, 1);
649 const OptionType::OptionType Type =
650 stringToOptionType(GetOperatorName(d));
651 const std::string& Name = InitPtrToString(d.getArg(0));
653 OptionDescription OD(Type, Name);
656 checkNumberOfArguments(&d, 2);
659 // Aliases store the aliased option name in the 'Help' field.
660 OD.Help = InitPtrToString(d.getArg(1));
662 else if (!OD.isExtern()) {
663 processOptionProperties(&d, OD);
665 OptDescs_.InsertDescription(OD);
669 /// processOptionProperties - Go through the list of option
670 /// properties and call a corresponding handler for each.
671 static void processOptionProperties (const DagInit* d, OptionDescription& o) {
672 checkNumberOfArguments(d, 2);
673 DagInit::const_arg_iterator B = d->arg_begin();
674 // Skip the first argument: it's always the option name.
676 std::for_each(B, d->arg_end(), CollectOptionProperties(o));
681 /// CollectOptionDescriptions - Collects option properties from all
683 void CollectOptionDescriptions (RecordVector::const_iterator B,
684 RecordVector::const_iterator E,
685 OptionDescriptions& OptDescs)
687 // For every OptionList:
689 RecordVector::value_type T = *B;
690 // Throws an exception if the value does not exist.
691 ListInit* PropList = T->getValueAsListInit("options");
693 // For every option description in this list:
694 // collect the information and
695 std::for_each(PropList->begin(), PropList->end(), AddOption(OptDescs));
699 // Tool information record
701 namespace ToolFlags {
702 enum ToolFlags { Join = 0x1, Sink = 0x2 };
705 struct ToolDescription : public RefCountedBase<ToolDescription> {
709 StrVector InLanguage;
710 std::string OutLanguage;
711 std::string OutputSuffix;
714 // Various boolean properties
715 void setSink() { Flags |= ToolFlags::Sink; }
716 bool isSink() const { return Flags & ToolFlags::Sink; }
717 void setJoin() { Flags |= ToolFlags::Join; }
718 bool isJoin() const { return Flags & ToolFlags::Join; }
720 // Default ctor here is needed because StringMap can only store
721 // DefaultConstructible objects
722 ToolDescription() : CmdLine(0), Actions(0), Flags(0) {}
723 ToolDescription (const std::string& n)
724 : Name(n), CmdLine(0), Actions(0), Flags(0)
728 /// ToolDescriptions - A list of Tool information records.
729 typedef std::vector<IntrusiveRefCntPtr<ToolDescription> > ToolDescriptions;
732 /// CollectToolProperties - Function object for iterating over a list of
733 /// tool property records.
735 class CollectToolProperties;
736 typedef void (CollectToolProperties::* CollectToolPropertiesHandler)
739 class CollectToolProperties : public HandlerTable<CollectToolPropertiesHandler>
743 /// toolDesc_ - Properties of the current Tool. This is where the
744 /// information is stored.
745 ToolDescription& toolDesc_;
749 explicit CollectToolProperties (ToolDescription& d)
752 if (!staticMembersInitialized_) {
754 AddHandler("actions", &CollectToolProperties::onActions);
755 AddHandler("cmd_line", &CollectToolProperties::onCmdLine);
756 AddHandler("in_language", &CollectToolProperties::onInLanguage);
757 AddHandler("join", &CollectToolProperties::onJoin);
758 AddHandler("out_language", &CollectToolProperties::onOutLanguage);
759 AddHandler("output_suffix", &CollectToolProperties::onOutputSuffix);
760 AddHandler("sink", &CollectToolProperties::onSink);
762 staticMembersInitialized_ = true;
766 void operator() (Init* i) {
767 InvokeDagInitHandler(this, i);
772 /// Property handlers --
773 /// Functions that extract information about tool properties from
774 /// DAG representation.
776 void onActions (const DagInit* d) {
777 checkNumberOfArguments(d, 1);
778 Init* Case = d->getArg(0);
779 if (typeid(*Case) != typeid(DagInit) ||
780 GetOperatorName(static_cast<DagInit*>(Case)) != "case")
782 std::string("The argument to (actions) should be a 'case' construct!");
783 toolDesc_.Actions = Case;
786 void onCmdLine (const DagInit* d) {
787 checkNumberOfArguments(d, 1);
788 toolDesc_.CmdLine = d->getArg(0);
791 void onInLanguage (const DagInit* d) {
792 checkNumberOfArguments(d, 1);
793 Init* arg = d->getArg(0);
795 // Find out the argument's type.
796 if (typeid(*arg) == typeid(StringInit)) {
798 toolDesc_.InLanguage.push_back(InitPtrToString(arg));
802 const ListInit& lst = InitPtrToList(arg);
803 StrVector& out = toolDesc_.InLanguage;
805 // Copy strings to the output vector.
806 for (ListInit::const_iterator B = lst.begin(), E = lst.end();
808 out.push_back(InitPtrToString(*B));
811 // Remove duplicates.
812 std::sort(out.begin(), out.end());
813 StrVector::iterator newE = std::unique(out.begin(), out.end());
814 out.erase(newE, out.end());
818 void onJoin (const DagInit* d) {
819 checkNumberOfArguments(d, 0);
823 void onOutLanguage (const DagInit* d) {
824 checkNumberOfArguments(d, 1);
825 toolDesc_.OutLanguage = InitPtrToString(d->getArg(0));
828 void onOutputSuffix (const DagInit* d) {
829 checkNumberOfArguments(d, 1);
830 toolDesc_.OutputSuffix = InitPtrToString(d->getArg(0));
833 void onSink (const DagInit* d) {
834 checkNumberOfArguments(d, 0);
840 /// CollectToolDescriptions - Gather information about tool properties
841 /// from the parsed TableGen data (basically a wrapper for the
842 /// CollectToolProperties function object).
843 void CollectToolDescriptions (RecordVector::const_iterator B,
844 RecordVector::const_iterator E,
845 ToolDescriptions& ToolDescs)
847 // Iterate over a properties list of every Tool definition
849 const Record* T = *B;
850 // Throws an exception if the value does not exist.
851 ListInit* PropList = T->getValueAsListInit("properties");
853 IntrusiveRefCntPtr<ToolDescription>
854 ToolDesc(new ToolDescription(T->getName()));
856 std::for_each(PropList->begin(), PropList->end(),
857 CollectToolProperties(*ToolDesc));
858 ToolDescs.push_back(ToolDesc);
862 /// FillInEdgeVector - Merge all compilation graph definitions into
863 /// one single edge list.
864 void FillInEdgeVector(RecordVector::const_iterator B,
865 RecordVector::const_iterator E, RecordVector& Out) {
866 for (; B != E; ++B) {
867 const ListInit* edges = (*B)->getValueAsListInit("edges");
869 for (unsigned i = 0; i < edges->size(); ++i)
870 Out.push_back(edges->getElementAsRecord(i));
874 /// CalculatePriority - Calculate the priority of this plugin.
875 int CalculatePriority(RecordVector::const_iterator B,
876 RecordVector::const_iterator E) {
880 priority = static_cast<int>((*B)->getValueAsInt("priority"));
883 throw std::string("More than one 'PluginPriority' instance found: "
884 "most probably an error!");
890 /// NotInGraph - Helper function object for FilterNotInGraph.
893 const llvm::StringSet<>& ToolsInGraph_;
896 NotInGraph(const llvm::StringSet<>& ToolsInGraph)
897 : ToolsInGraph_(ToolsInGraph)
900 bool operator()(const IntrusiveRefCntPtr<ToolDescription>& x) {
901 return (ToolsInGraph_.count(x->Name) == 0);
905 /// FilterNotInGraph - Filter out from ToolDescs all Tools not
906 /// mentioned in the compilation graph definition.
907 void FilterNotInGraph (const RecordVector& EdgeVector,
908 ToolDescriptions& ToolDescs) {
910 // List all tools mentioned in the graph.
911 llvm::StringSet<> ToolsInGraph;
913 for (RecordVector::const_iterator B = EdgeVector.begin(),
914 E = EdgeVector.end(); B != E; ++B) {
916 const Record* Edge = *B;
917 const std::string& NodeA = Edge->getValueAsString("a");
918 const std::string& NodeB = Edge->getValueAsString("b");
921 ToolsInGraph.insert(NodeA);
922 ToolsInGraph.insert(NodeB);
925 // Filter ToolPropertiesList.
926 ToolDescriptions::iterator new_end =
927 std::remove_if(ToolDescs.begin(), ToolDescs.end(),
928 NotInGraph(ToolsInGraph));
929 ToolDescs.erase(new_end, ToolDescs.end());
932 /// FillInToolToLang - Fills in two tables that map tool names to
933 /// (input, output) languages. Helper function used by TypecheckGraph().
934 void FillInToolToLang (const ToolDescriptions& ToolDescs,
935 StringMap<StringSet<> >& ToolToInLang,
936 StringMap<std::string>& ToolToOutLang) {
937 for (ToolDescriptions::const_iterator B = ToolDescs.begin(),
938 E = ToolDescs.end(); B != E; ++B) {
939 const ToolDescription& D = *(*B);
940 for (StrVector::const_iterator B = D.InLanguage.begin(),
941 E = D.InLanguage.end(); B != E; ++B)
942 ToolToInLang[D.Name].insert(*B);
943 ToolToOutLang[D.Name] = D.OutLanguage;
947 /// TypecheckGraph - Check that names for output and input languages
948 /// on all edges do match. This doesn't do much when the information
949 /// about the whole graph is not available (i.e. when compiling most
951 void TypecheckGraph (const RecordVector& EdgeVector,
952 const ToolDescriptions& ToolDescs) {
953 StringMap<StringSet<> > ToolToInLang;
954 StringMap<std::string> ToolToOutLang;
956 FillInToolToLang(ToolDescs, ToolToInLang, ToolToOutLang);
957 StringMap<std::string>::iterator IAE = ToolToOutLang.end();
958 StringMap<StringSet<> >::iterator IBE = ToolToInLang.end();
960 for (RecordVector::const_iterator B = EdgeVector.begin(),
961 E = EdgeVector.end(); B != E; ++B) {
962 const Record* Edge = *B;
963 const std::string& NodeA = Edge->getValueAsString("a");
964 const std::string& NodeB = Edge->getValueAsString("b");
965 StringMap<std::string>::iterator IA = ToolToOutLang.find(NodeA);
966 StringMap<StringSet<> >::iterator IB = ToolToInLang.find(NodeB);
968 if (NodeA != "root") {
969 if (IA != IAE && IB != IBE && IB->second.count(IA->second) == 0)
970 throw "Edge " + NodeA + "->" + NodeB
971 + ": output->input language mismatch";
975 throw std::string("Edges back to the root are not allowed!");
979 /// WalkCase - Walks the 'case' expression DAG and invokes
980 /// TestCallback on every test, and StatementCallback on every
981 /// statement. Handles 'case' nesting, but not the 'and' and 'or'
982 /// combinators (that is, they are passed directly to TestCallback).
983 /// TestCallback must have type 'void TestCallback(const DagInit*, unsigned
984 /// IndentLevel, bool FirstTest)'.
985 /// StatementCallback must have type 'void StatementCallback(const Init*,
986 /// unsigned IndentLevel)'.
987 template <typename F1, typename F2>
988 void WalkCase(const Init* Case, F1 TestCallback, F2 StatementCallback,
989 unsigned IndentLevel = 0)
991 const DagInit& d = InitPtrToDag(Case);
994 if (GetOperatorName(d) != "case")
995 throw std::string("WalkCase should be invoked only on 'case' expressions!");
997 if (d.getNumArgs() < 2)
998 throw "There should be at least one clause in the 'case' expression:\n"
1003 const unsigned numArgs = d.getNumArgs();
1005 for (DagInit::const_arg_iterator B = d.arg_begin(), E = d.arg_end();
1012 const DagInit& Test = InitPtrToDag(arg);
1014 if (GetOperatorName(Test) == "default" && (i+1 != numArgs))
1015 throw std::string("The 'default' clause should be the last in the"
1016 "'case' construct!");
1018 throw "Case construct handler: no corresponding action "
1019 "found for the test " + Test.getAsString() + '!';
1021 TestCallback(&Test, IndentLevel, (i == 1));
1025 if (dynamic_cast<DagInit*>(arg)
1026 && GetOperatorName(static_cast<DagInit*>(arg)) == "case") {
1028 WalkCase(arg, TestCallback, StatementCallback, IndentLevel + Indent1);
1031 // Handle statement.
1032 StatementCallback(arg, IndentLevel);
1040 /// ExtractOptionNames - A helper function object used by
1041 /// CheckForSuperfluousOptions() to walk the 'case' DAG.
1042 class ExtractOptionNames {
1043 llvm::StringSet<>& OptionNames_;
1045 void processDag(const Init* Statement) {
1046 const DagInit& Stmt = InitPtrToDag(Statement);
1047 const std::string& ActionName = GetOperatorName(Stmt);
1048 if (ActionName == "forward" || ActionName == "forward_as" ||
1049 ActionName == "forward_value" ||
1050 ActionName == "forward_transformed_value" ||
1051 ActionName == "unpack_values" || ActionName == "switch_on" ||
1052 ActionName == "parameter_equals" || ActionName == "element_in_list" ||
1053 ActionName == "not_empty" || ActionName == "empty") {
1054 checkNumberOfArguments(&Stmt, 1);
1055 const std::string& Name = InitPtrToString(Stmt.getArg(0));
1056 OptionNames_.insert(Name);
1058 else if (ActionName == "and" || ActionName == "or") {
1059 for (unsigned i = 0, NumArgs = Stmt.getNumArgs(); i < NumArgs; ++i) {
1060 this->processDag(Stmt.getArg(i));
1066 ExtractOptionNames(llvm::StringSet<>& OptionNames) : OptionNames_(OptionNames)
1069 void operator()(const Init* Statement) {
1070 if (typeid(*Statement) == typeid(ListInit)) {
1071 const ListInit& DagList = *static_cast<const ListInit*>(Statement);
1072 for (ListInit::const_iterator B = DagList.begin(), E = DagList.end();
1074 this->processDag(*B);
1077 this->processDag(Statement);
1081 void operator()(const DagInit* Test, unsigned, bool) {
1082 this->operator()(Test);
1084 void operator()(const Init* Statement, unsigned) {
1085 this->operator()(Statement);
1089 /// CheckForSuperfluousOptions - Check that there are no side
1090 /// effect-free options (specified only in the OptionList). Otherwise,
1091 /// output a warning.
1092 void CheckForSuperfluousOptions (const RecordVector& Edges,
1093 const ToolDescriptions& ToolDescs,
1094 const OptionDescriptions& OptDescs) {
1095 llvm::StringSet<> nonSuperfluousOptions;
1097 // Add all options mentioned in the ToolDesc.Actions to the set of
1098 // non-superfluous options.
1099 for (ToolDescriptions::const_iterator B = ToolDescs.begin(),
1100 E = ToolDescs.end(); B != E; ++B) {
1101 const ToolDescription& TD = *(*B);
1102 ExtractOptionNames Callback(nonSuperfluousOptions);
1104 WalkCase(TD.Actions, Callback, Callback);
1107 // Add all options mentioned in the 'case' clauses of the
1108 // OptionalEdges of the compilation graph to the set of
1109 // non-superfluous options.
1110 for (RecordVector::const_iterator B = Edges.begin(), E = Edges.end();
1112 const Record* Edge = *B;
1113 DagInit* Weight = Edge->getValueAsDag("weight");
1115 if (!isDagEmpty(Weight))
1116 WalkCase(Weight, ExtractOptionNames(nonSuperfluousOptions), Id());
1119 // Check that all options in OptDescs belong to the set of
1120 // non-superfluous options.
1121 for (OptionDescriptions::const_iterator B = OptDescs.begin(),
1122 E = OptDescs.end(); B != E; ++B) {
1123 const OptionDescription& Val = B->second;
1124 if (!nonSuperfluousOptions.count(Val.Name)
1125 && Val.Type != OptionType::Alias)
1126 llvm::errs() << "Warning: option '-" << Val.Name << "' has no effect! "
1127 "Probable cause: this option is specified only in the OptionList.\n";
1131 /// EmitCaseTest0Args - Helper function used by EmitCaseConstructHandler().
1132 bool EmitCaseTest0Args(const std::string& TestName, raw_ostream& O) {
1133 if (TestName == "single_input_file") {
1134 O << "InputFilenames.size() == 1";
1137 else if (TestName == "multiple_input_files") {
1138 O << "InputFilenames.size() > 1";
1145 /// EmitListTest - Helper function used by EmitCaseTest1ArgList().
1146 template <typename F>
1147 void EmitListTest(const ListInit& L, const char* LogicOp,
1148 F Callback, raw_ostream& O)
1150 // This is a lot like EmitLogicalOperationTest, but works on ListInits instead
1152 bool isFirst = true;
1153 for (ListInit::const_iterator B = L.begin(), E = L.end(); B != E; ++B) {
1158 Callback(InitPtrToString(*B), O);
1162 // Callbacks for use with EmitListTest.
1164 class EmitSwitchOn {
1165 const OptionDescriptions& OptDescs_;
1167 EmitSwitchOn(const OptionDescriptions& OptDescs) : OptDescs_(OptDescs)
1170 void operator()(const std::string& OptName, raw_ostream& O) const {
1171 const OptionDescription& OptDesc = OptDescs_.FindSwitch(OptName);
1172 O << OptDesc.GenVariableName();
1176 class EmitEmptyTest {
1178 const OptionDescriptions& OptDescs_;
1180 EmitEmptyTest(bool EmitNegate, const OptionDescriptions& OptDescs)
1181 : EmitNegate_(EmitNegate), OptDescs_(OptDescs)
1184 void operator()(const std::string& OptName, raw_ostream& O) const {
1185 const char* Neg = (EmitNegate_ ? "!" : "");
1186 if (OptName == "o") {
1187 O << Neg << "OutputFilename.empty()";
1189 else if (OptName == "save-temps") {
1190 O << Neg << "(SaveTemps == SaveTempsEnum::Unset)";
1193 const OptionDescription& OptDesc = OptDescs_.FindListOrParameter(OptName);
1194 O << Neg << OptDesc.GenVariableName() << ".empty()";
1200 /// EmitCaseTest1ArgList - Helper function used by EmitCaseTest1Arg();
1201 bool EmitCaseTest1ArgList(const std::string& TestName,
1203 const OptionDescriptions& OptDescs,
1205 const ListInit& L = *static_cast<ListInit*>(d.getArg(0));
1207 if (TestName == "any_switch_on") {
1208 EmitListTest(L, "||", EmitSwitchOn(OptDescs), O);
1211 else if (TestName == "switch_on") {
1212 EmitListTest(L, "&&", EmitSwitchOn(OptDescs), O);
1215 else if (TestName == "any_not_empty") {
1216 EmitListTest(L, "||", EmitEmptyTest(true, OptDescs), O);
1219 else if (TestName == "any_empty") {
1220 EmitListTest(L, "||", EmitEmptyTest(false, OptDescs), O);
1223 else if (TestName == "not_empty") {
1224 EmitListTest(L, "&&", EmitEmptyTest(true, OptDescs), O);
1227 else if (TestName == "empty") {
1228 EmitListTest(L, "&&", EmitEmptyTest(false, OptDescs), O);
1235 /// EmitCaseTest1ArgStr - Helper function used by EmitCaseTest1Arg();
1236 bool EmitCaseTest1ArgStr(const std::string& TestName,
1238 const OptionDescriptions& OptDescs,
1240 const std::string& OptName = InitPtrToString(d.getArg(0));
1242 if (TestName == "switch_on") {
1243 apply(EmitSwitchOn(OptDescs), OptName, O);
1246 else if (TestName == "input_languages_contain") {
1247 O << "InLangs.count(\"" << OptName << "\") != 0";
1250 else if (TestName == "in_language") {
1251 // This works only for single-argument Tool::GenerateAction. Join
1252 // tools can process several files in different languages simultaneously.
1254 // TODO: make this work with Edge::Weight (if possible).
1255 O << "LangMap.GetLanguage(inFile) == \"" << OptName << '\"';
1258 else if (TestName == "not_empty" || TestName == "empty") {
1259 bool EmitNegate = (TestName == "not_empty");
1260 apply(EmitEmptyTest(EmitNegate, OptDescs), OptName, O);
1267 /// EmitCaseTest1Arg - Helper function used by EmitCaseConstructHandler();
1268 bool EmitCaseTest1Arg(const std::string& TestName,
1270 const OptionDescriptions& OptDescs,
1272 checkNumberOfArguments(&d, 1);
1273 if (typeid(*d.getArg(0)) == typeid(ListInit))
1274 return EmitCaseTest1ArgList(TestName, d, OptDescs, O);
1276 return EmitCaseTest1ArgStr(TestName, d, OptDescs, O);
1279 /// EmitCaseTest2Args - Helper function used by EmitCaseConstructHandler().
1280 bool EmitCaseTest2Args(const std::string& TestName,
1282 unsigned IndentLevel,
1283 const OptionDescriptions& OptDescs,
1285 checkNumberOfArguments(&d, 2);
1286 const std::string& OptName = InitPtrToString(d.getArg(0));
1287 const std::string& OptArg = InitPtrToString(d.getArg(1));
1289 if (TestName == "parameter_equals") {
1290 const OptionDescription& OptDesc = OptDescs.FindParameter(OptName);
1291 O << OptDesc.GenVariableName() << " == \"" << OptArg << "\"";
1294 else if (TestName == "element_in_list") {
1295 const OptionDescription& OptDesc = OptDescs.FindList(OptName);
1296 const std::string& VarName = OptDesc.GenVariableName();
1297 O << "std::find(" << VarName << ".begin(),\n";
1298 O.indent(IndentLevel + Indent1)
1299 << VarName << ".end(), \""
1300 << OptArg << "\") != " << VarName << ".end()";
1307 // Forward declaration.
1308 // EmitLogicalOperationTest and EmitCaseTest are mutually recursive.
1309 void EmitCaseTest(const DagInit& d, unsigned IndentLevel,
1310 const OptionDescriptions& OptDescs,
1313 /// EmitLogicalOperationTest - Helper function used by
1314 /// EmitCaseConstructHandler.
1315 void EmitLogicalOperationTest(const DagInit& d, const char* LogicOp,
1316 unsigned IndentLevel,
1317 const OptionDescriptions& OptDescs,
1320 for (unsigned j = 0, NumArgs = d.getNumArgs(); j < NumArgs; ++j) {
1321 const DagInit& InnerTest = InitPtrToDag(d.getArg(j));
1322 EmitCaseTest(InnerTest, IndentLevel, OptDescs, O);
1323 if (j != NumArgs - 1) {
1325 O.indent(IndentLevel + Indent1) << ' ' << LogicOp << " (";
1333 void EmitLogicalNot(const DagInit& d, unsigned IndentLevel,
1334 const OptionDescriptions& OptDescs, raw_ostream& O)
1336 checkNumberOfArguments(&d, 1);
1337 const DagInit& InnerTest = InitPtrToDag(d.getArg(0));
1339 EmitCaseTest(InnerTest, IndentLevel, OptDescs, O);
1343 /// EmitCaseTest - Helper function used by EmitCaseConstructHandler.
1344 void EmitCaseTest(const DagInit& d, unsigned IndentLevel,
1345 const OptionDescriptions& OptDescs,
1347 const std::string& TestName = GetOperatorName(d);
1349 if (TestName == "and")
1350 EmitLogicalOperationTest(d, "&&", IndentLevel, OptDescs, O);
1351 else if (TestName == "or")
1352 EmitLogicalOperationTest(d, "||", IndentLevel, OptDescs, O);
1353 else if (TestName == "not")
1354 EmitLogicalNot(d, IndentLevel, OptDescs, O);
1355 else if (EmitCaseTest0Args(TestName, O))
1357 else if (EmitCaseTest1Arg(TestName, d, OptDescs, O))
1359 else if (EmitCaseTest2Args(TestName, d, IndentLevel, OptDescs, O))
1362 throw TestName + ": unknown edge property!";
1366 /// EmitCaseTestCallback - Callback used by EmitCaseConstructHandler.
1367 class EmitCaseTestCallback {
1369 const OptionDescriptions& OptDescs_;
1373 EmitCaseTestCallback(bool EmitElseIf,
1374 const OptionDescriptions& OptDescs, raw_ostream& O)
1375 : EmitElseIf_(EmitElseIf), OptDescs_(OptDescs), O_(O)
1378 void operator()(const DagInit* Test, unsigned IndentLevel, bool FirstTest)
1380 if (GetOperatorName(Test) == "default") {
1381 O_.indent(IndentLevel) << "else {\n";
1384 O_.indent(IndentLevel)
1385 << ((!FirstTest && EmitElseIf_) ? "else if (" : "if (");
1386 EmitCaseTest(*Test, IndentLevel, OptDescs_, O_);
1392 /// EmitCaseStatementCallback - Callback used by EmitCaseConstructHandler.
1393 template <typename F>
1394 class EmitCaseStatementCallback {
1399 EmitCaseStatementCallback(F Callback, raw_ostream& O)
1400 : Callback_(Callback), O_(O)
1403 void operator() (const Init* Statement, unsigned IndentLevel) {
1405 // Ignore nested 'case' DAG.
1406 if (!(dynamic_cast<const DagInit*>(Statement) &&
1407 GetOperatorName(static_cast<const DagInit*>(Statement)) == "case")) {
1408 if (typeid(*Statement) == typeid(ListInit)) {
1409 const ListInit& DagList = *static_cast<const ListInit*>(Statement);
1410 for (ListInit::const_iterator B = DagList.begin(), E = DagList.end();
1412 Callback_(*B, (IndentLevel + Indent1), O_);
1415 Callback_(Statement, (IndentLevel + Indent1), O_);
1418 O_.indent(IndentLevel) << "}\n";
1423 /// EmitCaseConstructHandler - Emit code that handles the 'case'
1424 /// construct. Takes a function object that should emit code for every case
1425 /// clause. Implemented on top of WalkCase.
1426 /// Callback's type is void F(Init* Statement, unsigned IndentLevel,
1427 /// raw_ostream& O).
1428 /// EmitElseIf parameter controls the type of condition that is emitted ('if
1429 /// (..) {..} else if (..) {} .. else {..}' vs. 'if (..) {..} if(..) {..}
1431 template <typename F>
1432 void EmitCaseConstructHandler(const Init* Case, unsigned IndentLevel,
1433 F Callback, bool EmitElseIf,
1434 const OptionDescriptions& OptDescs,
1436 WalkCase(Case, EmitCaseTestCallback(EmitElseIf, OptDescs, O),
1437 EmitCaseStatementCallback<F>(Callback, O), IndentLevel);
1440 /// TokenizeCmdline - converts from "$CALL(HookName, 'Arg1', 'Arg2')/path" to
1441 /// ["$CALL(", "HookName", "Arg1", "Arg2", ")/path"] .
1442 /// Helper function used by EmitCmdLineVecFill and.
1443 void TokenizeCmdline(const std::string& CmdLine, StrVector& Out) {
1444 const char* Delimiters = " \t\n\v\f\r";
1446 { Normal, SpecialCommand, InsideSpecialCommand, InsideQuotationMarks }
1449 if (CmdLine.empty())
1453 std::string::size_type B = CmdLine.find_first_not_of(Delimiters),
1456 for (; B != E; ++B) {
1457 char cur_ch = CmdLine[B];
1461 if (cur_ch == '$') {
1462 cur_st = SpecialCommand;
1465 if (oneOf(Delimiters, cur_ch)) {
1467 B = CmdLine.find_first_not_of(Delimiters, B);
1468 if (B == std::string::npos) {
1479 case SpecialCommand:
1480 if (oneOf(Delimiters, cur_ch)) {
1485 if (cur_ch == '(') {
1487 cur_st = InsideSpecialCommand;
1492 case InsideSpecialCommand:
1493 if (oneOf(Delimiters, cur_ch)) {
1496 if (cur_ch == '\'') {
1497 cur_st = InsideQuotationMarks;
1501 if (cur_ch == ')') {
1505 if (cur_ch == ',') {
1511 case InsideQuotationMarks:
1512 if (cur_ch == '\'') {
1513 cur_st = InsideSpecialCommand;
1519 Out.back().push_back(cur_ch);
1523 /// SubstituteSpecialCommands - Perform string substitution for $CALL
1524 /// and $ENV. Helper function used by EmitCmdLineVecFill().
1525 StrVector::const_iterator SubstituteSpecialCommands
1526 (StrVector::const_iterator Pos, StrVector::const_iterator End, raw_ostream& O)
1529 const std::string& cmd = *Pos;
1531 if (cmd == "$CALL") {
1532 checkedIncrement(Pos, End, "Syntax error in $CALL invocation!");
1533 const std::string& CmdName = *Pos;
1536 throw std::string("$CALL invocation: empty argument list!");
1539 O << CmdName << "(";
1542 bool firstIteration = true;
1544 checkedIncrement(Pos, End, "Syntax error in $CALL invocation!");
1545 const std::string& Arg = *Pos;
1546 assert(Arg.size() != 0);
1552 firstIteration = false;
1556 O << '"' << Arg << '"';
1562 else if (cmd == "$ENV") {
1563 checkedIncrement(Pos, End, "Syntax error in $ENV invocation!");
1564 const std::string& EnvName = *Pos;
1567 throw "$ENV invocation: empty argument list!";
1569 O << "checkCString(std::getenv(\"";
1573 checkedIncrement(Pos, End, "Syntax error in $ENV invocation!");
1576 throw "Unknown special command: " + cmd;
1579 const std::string& Leftover = *Pos;
1580 assert(Leftover.at(0) == ')');
1581 if (Leftover.size() != 1)
1582 O << " + std::string(\"" << (Leftover.c_str() + 1) << "\")";
1587 /// EmitCmdLineVecFill - Emit code that fills in the command line
1588 /// vector. Helper function used by EmitGenerateActionMethod().
1589 void EmitCmdLineVecFill(const Init* CmdLine, const std::string& ToolName,
1590 bool IsJoin, unsigned IndentLevel,
1593 TokenizeCmdline(InitPtrToString(CmdLine), StrVec);
1596 throw "Tool '" + ToolName + "' has empty command line!";
1598 StrVector::const_iterator I = StrVec.begin(), E = StrVec.end();
1600 // If there is a hook invocation on the place of the first command, skip it.
1601 assert(!StrVec[0].empty());
1602 if (StrVec[0][0] == '$') {
1603 while (I != E && (*I)[0] != ')' )
1606 // Skip the ')' symbol.
1613 bool hasINFILE = false;
1615 for (; I != E; ++I) {
1616 const std::string& cmd = *I;
1617 assert(!cmd.empty());
1618 O.indent(IndentLevel);
1619 if (cmd.at(0) == '$') {
1620 if (cmd == "$INFILE") {
1623 O << "for (PathVector::const_iterator B = inFiles.begin()"
1624 << ", E = inFiles.end();\n";
1625 O.indent(IndentLevel) << "B != E; ++B)\n";
1626 O.indent(IndentLevel + Indent1) << "vec.push_back(B->str());\n";
1629 O << "vec.push_back(inFile.str());\n";
1632 else if (cmd == "$OUTFILE") {
1633 O << "vec.push_back(\"\");\n";
1634 O.indent(IndentLevel) << "out_file_index = vec.size()-1;\n";
1637 O << "vec.push_back(";
1638 I = SubstituteSpecialCommands(I, E, O);
1643 O << "vec.push_back(\"" << cmd << "\");\n";
1647 throw "Tool '" + ToolName + "' doesn't take any input!";
1649 O.indent(IndentLevel) << "cmd = ";
1650 if (StrVec[0][0] == '$')
1651 SubstituteSpecialCommands(StrVec.begin(), StrVec.end(), O);
1653 O << '"' << StrVec[0] << '"';
1657 /// EmitCmdLineVecFillCallback - A function object wrapper around
1658 /// EmitCmdLineVecFill(). Used by EmitGenerateActionMethod() as an
1659 /// argument to EmitCaseConstructHandler().
1660 class EmitCmdLineVecFillCallback {
1662 const std::string& ToolName;
1664 EmitCmdLineVecFillCallback(bool J, const std::string& TN)
1665 : IsJoin(J), ToolName(TN) {}
1667 void operator()(const Init* Statement, unsigned IndentLevel,
1668 raw_ostream& O) const
1670 EmitCmdLineVecFill(Statement, ToolName, IsJoin, IndentLevel, O);
1674 /// EmitForwardOptionPropertyHandlingCode - Helper function used to
1675 /// implement EmitActionHandler. Emits code for
1676 /// handling the (forward) and (forward_as) option properties.
1677 void EmitForwardOptionPropertyHandlingCode (const OptionDescription& D,
1678 unsigned IndentLevel,
1679 const std::string& NewName,
1681 const std::string& Name = NewName.empty()
1684 unsigned IndentLevel1 = IndentLevel + Indent1;
1687 case OptionType::Switch:
1688 O.indent(IndentLevel) << "vec.push_back(\"" << Name << "\");\n";
1690 case OptionType::Parameter:
1691 O.indent(IndentLevel) << "vec.push_back(\"" << Name << "\");\n";
1692 O.indent(IndentLevel) << "vec.push_back(" << D.GenVariableName() << ");\n";
1694 case OptionType::Prefix:
1695 O.indent(IndentLevel) << "vec.push_back(\"" << Name << "\" + "
1696 << D.GenVariableName() << ");\n";
1698 case OptionType::PrefixList:
1699 O.indent(IndentLevel)
1700 << "for (" << D.GenTypeDeclaration()
1701 << "::iterator B = " << D.GenVariableName() << ".begin(),\n";
1702 O.indent(IndentLevel)
1703 << "E = " << D.GenVariableName() << ".end(); B != E;) {\n";
1704 O.indent(IndentLevel1) << "vec.push_back(\"" << Name << "\" + " << "*B);\n";
1705 O.indent(IndentLevel1) << "++B;\n";
1707 for (int i = 1, j = D.MultiVal; i < j; ++i) {
1708 O.indent(IndentLevel1) << "vec.push_back(*B);\n";
1709 O.indent(IndentLevel1) << "++B;\n";
1712 O.indent(IndentLevel) << "}\n";
1714 case OptionType::ParameterList:
1715 O.indent(IndentLevel)
1716 << "for (" << D.GenTypeDeclaration() << "::iterator B = "
1717 << D.GenVariableName() << ".begin(),\n";
1718 O.indent(IndentLevel) << "E = " << D.GenVariableName()
1719 << ".end() ; B != E;) {\n";
1720 O.indent(IndentLevel1) << "vec.push_back(\"" << Name << "\");\n";
1722 for (int i = 0, j = D.MultiVal; i < j; ++i) {
1723 O.indent(IndentLevel1) << "vec.push_back(*B);\n";
1724 O.indent(IndentLevel1) << "++B;\n";
1727 O.indent(IndentLevel) << "}\n";
1729 case OptionType::Alias:
1731 throw std::string("Aliases are not allowed in tool option descriptions!");
1735 /// ActionHandlingCallbackBase - Base class of EmitActionHandlersCallback and
1736 /// EmitPreprocessOptionsCallback.
1737 struct ActionHandlingCallbackBase {
1739 void onErrorDag(const DagInit& d,
1740 unsigned IndentLevel, raw_ostream& O) const
1742 O.indent(IndentLevel)
1743 << "throw std::runtime_error(\"" <<
1744 (d.getNumArgs() >= 1 ? InitPtrToString(d.getArg(0))
1749 void onWarningDag(const DagInit& d,
1750 unsigned IndentLevel, raw_ostream& O) const
1752 checkNumberOfArguments(&d, 1);
1753 O.indent(IndentLevel) << "llvm::errs() << \""
1754 << InitPtrToString(d.getArg(0)) << "\";\n";
1759 /// EmitActionHandlersCallback - Emit code that handles actions. Used by
1760 /// EmitGenerateActionMethod() as an argument to EmitCaseConstructHandler().
1761 class EmitActionHandlersCallback;
1762 typedef void (EmitActionHandlersCallback::* EmitActionHandlersCallbackHandler)
1763 (const DagInit&, unsigned, raw_ostream&) const;
1765 class EmitActionHandlersCallback
1766 : public ActionHandlingCallbackBase,
1767 public HandlerTable<EmitActionHandlersCallbackHandler>
1769 const OptionDescriptions& OptDescs;
1770 typedef EmitActionHandlersCallbackHandler Handler;
1772 void onAppendCmd (const DagInit& Dag,
1773 unsigned IndentLevel, raw_ostream& O) const
1775 checkNumberOfArguments(&Dag, 1);
1776 const std::string& Cmd = InitPtrToString(Dag.getArg(0));
1778 llvm::SplitString(Cmd, Out);
1780 for (StrVector::const_iterator B = Out.begin(), E = Out.end();
1782 O.indent(IndentLevel) << "vec.push_back(\"" << *B << "\");\n";
1785 void onForward (const DagInit& Dag,
1786 unsigned IndentLevel, raw_ostream& O) const
1788 checkNumberOfArguments(&Dag, 1);
1789 const std::string& Name = InitPtrToString(Dag.getArg(0));
1790 EmitForwardOptionPropertyHandlingCode(OptDescs.FindOption(Name),
1791 IndentLevel, "", O);
1794 void onForwardAs (const DagInit& Dag,
1795 unsigned IndentLevel, raw_ostream& O) const
1797 checkNumberOfArguments(&Dag, 2);
1798 const std::string& Name = InitPtrToString(Dag.getArg(0));
1799 const std::string& NewName = InitPtrToString(Dag.getArg(1));
1800 EmitForwardOptionPropertyHandlingCode(OptDescs.FindOption(Name),
1801 IndentLevel, NewName, O);
1804 void onForwardValue (const DagInit& Dag,
1805 unsigned IndentLevel, raw_ostream& O) const
1807 checkNumberOfArguments(&Dag, 1);
1808 const std::string& Name = InitPtrToString(Dag.getArg(0));
1809 const OptionDescription& D = OptDescs.FindOption(Name);
1811 if (D.isParameter()) {
1812 O.indent(IndentLevel) << "vec.push_back("
1813 << D.GenVariableName() << ");\n";
1815 else if (D.isList()) {
1816 O.indent(IndentLevel) << "std::copy(" << D.GenVariableName()
1817 << ".begin(), " << D.GenVariableName()
1818 << ".end(), std::back_inserter(vec));\n";
1821 throw "'forward_value' used with a switch or an alias!";
1825 void onForwardTransformedValue (const DagInit& Dag,
1826 unsigned IndentLevel, raw_ostream& O) const
1828 checkNumberOfArguments(&Dag, 2);
1829 const std::string& Name = InitPtrToString(Dag.getArg(0));
1830 const std::string& Hook = InitPtrToString(Dag.getArg(1));
1831 const OptionDescription& D = OptDescs.FindOption(Name);
1833 if (D.isParameter() || D.isList()) {
1834 O.indent(IndentLevel) << "vec.push_back(" << "hooks::"
1835 << Hook << "(" << D.GenVariableName() << "));\n";
1838 throw "'forward_transformed_value' used with a switch or an alias!";
1843 void onOutputSuffix (const DagInit& Dag,
1844 unsigned IndentLevel, raw_ostream& O) const
1846 checkNumberOfArguments(&Dag, 1);
1847 const std::string& OutSuf = InitPtrToString(Dag.getArg(0));
1848 O.indent(IndentLevel) << "output_suffix = \"" << OutSuf << "\";\n";
1851 void onStopCompilation (const DagInit& Dag,
1852 unsigned IndentLevel, raw_ostream& O) const
1854 O.indent(IndentLevel) << "stop_compilation = true;\n";
1858 void onUnpackValues (const DagInit& Dag,
1859 unsigned IndentLevel, raw_ostream& O) const
1861 checkNumberOfArguments(&Dag, 1);
1862 const std::string& Name = InitPtrToString(Dag.getArg(0));
1863 const OptionDescription& D = OptDescs.FindOption(Name);
1866 throw "Can't use unpack_values with multi-valued options!";
1869 O.indent(IndentLevel)
1870 << "for (" << D.GenTypeDeclaration()
1871 << "::iterator B = " << D.GenVariableName() << ".begin(),\n";
1872 O.indent(IndentLevel)
1873 << "E = " << D.GenVariableName() << ".end(); B != E; ++B)\n";
1874 O.indent(IndentLevel + Indent1)
1875 << "llvm::SplitString(*B, vec, \",\");\n";
1877 else if (D.isParameter()){
1878 O.indent(IndentLevel) << "llvm::SplitString("
1879 << D.GenVariableName() << ", vec, \",\");\n";
1882 throw "Option '" + D.Name +
1883 "': switches can't have the 'unpack_values' property!";
1889 explicit EmitActionHandlersCallback(const OptionDescriptions& OD)
1892 if (!staticMembersInitialized_) {
1893 AddHandler("error", &EmitActionHandlersCallback::onErrorDag);
1894 AddHandler("warning", &EmitActionHandlersCallback::onWarningDag);
1895 AddHandler("append_cmd", &EmitActionHandlersCallback::onAppendCmd);
1896 AddHandler("forward", &EmitActionHandlersCallback::onForward);
1897 AddHandler("forward_as", &EmitActionHandlersCallback::onForwardAs);
1898 AddHandler("forward_value", &EmitActionHandlersCallback::onForwardValue);
1899 AddHandler("forward_transformed_value",
1900 &EmitActionHandlersCallback::onForwardTransformedValue);
1901 AddHandler("output_suffix", &EmitActionHandlersCallback::onOutputSuffix);
1902 AddHandler("stop_compilation",
1903 &EmitActionHandlersCallback::onStopCompilation);
1904 AddHandler("unpack_values",
1905 &EmitActionHandlersCallback::onUnpackValues);
1907 staticMembersInitialized_ = true;
1911 void operator()(const Init* Statement,
1912 unsigned IndentLevel, raw_ostream& O) const
1914 const DagInit& Dag = InitPtrToDag(Statement);
1915 const std::string& ActionName = GetOperatorName(Dag);
1916 Handler h = GetHandler(ActionName);
1918 ((this)->*(h))(Dag, IndentLevel, O);
1922 bool IsOutFileIndexCheckRequiredStr (const Init* CmdLine) {
1924 TokenizeCmdline(InitPtrToString(CmdLine), StrVec);
1926 for (StrVector::const_iterator I = StrVec.begin(), E = StrVec.end();
1928 if (*I == "$OUTFILE")
1935 class IsOutFileIndexCheckRequiredStrCallback {
1939 IsOutFileIndexCheckRequiredStrCallback(bool* ret) : ret_(ret)
1942 void operator()(const Init* CmdLine) {
1943 // Ignore nested 'case' DAG.
1944 if (typeid(*CmdLine) == typeid(DagInit))
1947 if (IsOutFileIndexCheckRequiredStr(CmdLine))
1951 void operator()(const DagInit* Test, unsigned, bool) {
1952 this->operator()(Test);
1954 void operator()(const Init* Statement, unsigned) {
1955 this->operator()(Statement);
1959 bool IsOutFileIndexCheckRequiredCase (Init* CmdLine) {
1961 WalkCase(CmdLine, Id(), IsOutFileIndexCheckRequiredStrCallback(&ret));
1965 /// IsOutFileIndexCheckRequired - Should we emit an "out_file_index != -1" check
1966 /// in EmitGenerateActionMethod() ?
1967 bool IsOutFileIndexCheckRequired (Init* CmdLine) {
1968 if (typeid(*CmdLine) == typeid(StringInit))
1969 return IsOutFileIndexCheckRequiredStr(CmdLine);
1971 return IsOutFileIndexCheckRequiredCase(CmdLine);
1974 void EmitGenerateActionMethodHeader(const ToolDescription& D,
1975 bool IsJoin, raw_ostream& O)
1978 O.indent(Indent1) << "Action GenerateAction(const PathVector& inFiles,\n";
1980 O.indent(Indent1) << "Action GenerateAction(const sys::Path& inFile,\n";
1982 O.indent(Indent2) << "bool HasChildren,\n";
1983 O.indent(Indent2) << "const llvm::sys::Path& TempDir,\n";
1984 O.indent(Indent2) << "const InputLanguagesSet& InLangs,\n";
1985 O.indent(Indent2) << "const LanguageMap& LangMap) const\n";
1986 O.indent(Indent1) << "{\n";
1987 O.indent(Indent2) << "std::string cmd;\n";
1988 O.indent(Indent2) << "std::vector<std::string> vec;\n";
1989 O.indent(Indent2) << "bool stop_compilation = !HasChildren;\n";
1990 O.indent(Indent2) << "const char* output_suffix = \""
1991 << D.OutputSuffix << "\";\n";
1994 // EmitGenerateActionMethod - Emit either a normal or a "join" version of the
1995 // Tool::GenerateAction() method.
1996 void EmitGenerateActionMethod (const ToolDescription& D,
1997 const OptionDescriptions& OptDescs,
1998 bool IsJoin, raw_ostream& O) {
2000 EmitGenerateActionMethodHeader(D, IsJoin, O);
2003 throw "Tool " + D.Name + " has no cmd_line property!";
2005 bool IndexCheckRequired = IsOutFileIndexCheckRequired(D.CmdLine);
2006 O.indent(Indent2) << "int out_file_index"
2007 << (IndexCheckRequired ? " = -1" : "")
2010 // Process the cmd_line property.
2011 if (typeid(*D.CmdLine) == typeid(StringInit))
2012 EmitCmdLineVecFill(D.CmdLine, D.Name, IsJoin, Indent2, O);
2014 EmitCaseConstructHandler(D.CmdLine, Indent2,
2015 EmitCmdLineVecFillCallback(IsJoin, D.Name),
2018 // For every understood option, emit handling code.
2020 EmitCaseConstructHandler(D.Actions, Indent2,
2021 EmitActionHandlersCallback(OptDescs),
2022 false, OptDescs, O);
2026 << "std::string out_file = OutFilename("
2027 << (IsJoin ? "sys::Path(),\n" : "inFile,\n");
2028 O.indent(Indent3) << "TempDir, stop_compilation, output_suffix).str();\n\n";
2030 if (IndexCheckRequired)
2031 O.indent(Indent2) << "if (out_file_index != -1)\n";
2032 O.indent(IndexCheckRequired ? Indent3 : Indent2)
2033 << "vec[out_file_index] = out_file;\n";
2035 // Handle the Sink property.
2037 O.indent(Indent2) << "if (!" << SinkOptionName << ".empty()) {\n";
2038 O.indent(Indent3) << "vec.insert(vec.end(), "
2039 << SinkOptionName << ".begin(), " << SinkOptionName
2041 O.indent(Indent2) << "}\n";
2044 O.indent(Indent2) << "return Action(cmd, vec, stop_compilation, out_file);\n";
2045 O.indent(Indent1) << "}\n\n";
2048 /// EmitGenerateActionMethods - Emit two GenerateAction() methods for
2049 /// a given Tool class.
2050 void EmitGenerateActionMethods (const ToolDescription& ToolDesc,
2051 const OptionDescriptions& OptDescs,
2053 if (!ToolDesc.isJoin()) {
2054 O.indent(Indent1) << "Action GenerateAction(const PathVector& inFiles,\n";
2055 O.indent(Indent2) << "bool HasChildren,\n";
2056 O.indent(Indent2) << "const llvm::sys::Path& TempDir,\n";
2057 O.indent(Indent2) << "const InputLanguagesSet& InLangs,\n";
2058 O.indent(Indent2) << "const LanguageMap& LangMap) const\n";
2059 O.indent(Indent1) << "{\n";
2060 O.indent(Indent2) << "throw std::runtime_error(\"" << ToolDesc.Name
2061 << " is not a Join tool!\");\n";
2062 O.indent(Indent1) << "}\n\n";
2065 EmitGenerateActionMethod(ToolDesc, OptDescs, true, O);
2068 EmitGenerateActionMethod(ToolDesc, OptDescs, false, O);
2071 /// EmitInOutLanguageMethods - Emit the [Input,Output]Language()
2072 /// methods for a given Tool class.
2073 void EmitInOutLanguageMethods (const ToolDescription& D, raw_ostream& O) {
2074 O.indent(Indent1) << "const char** InputLanguages() const {\n";
2075 O.indent(Indent2) << "return InputLanguages_;\n";
2076 O.indent(Indent1) << "}\n\n";
2078 if (D.OutLanguage.empty())
2079 throw "Tool " + D.Name + " has no 'out_language' property!";
2081 O.indent(Indent1) << "const char* OutputLanguage() const {\n";
2082 O.indent(Indent2) << "return \"" << D.OutLanguage << "\";\n";
2083 O.indent(Indent1) << "}\n\n";
2086 /// EmitNameMethod - Emit the Name() method for a given Tool class.
2087 void EmitNameMethod (const ToolDescription& D, raw_ostream& O) {
2088 O.indent(Indent1) << "const char* Name() const {\n";
2089 O.indent(Indent2) << "return \"" << D.Name << "\";\n";
2090 O.indent(Indent1) << "}\n\n";
2093 /// EmitIsJoinMethod - Emit the IsJoin() method for a given Tool
2095 void EmitIsJoinMethod (const ToolDescription& D, raw_ostream& O) {
2096 O.indent(Indent1) << "bool IsJoin() const {\n";
2098 O.indent(Indent2) << "return true;\n";
2100 O.indent(Indent2) << "return false;\n";
2101 O.indent(Indent1) << "}\n\n";
2104 /// EmitStaticMemberDefinitions - Emit static member definitions for a
2105 /// given Tool class.
2106 void EmitStaticMemberDefinitions(const ToolDescription& D, raw_ostream& O) {
2107 if (D.InLanguage.empty())
2108 throw "Tool " + D.Name + " has no 'in_language' property!";
2110 O << "const char* " << D.Name << "::InputLanguages_[] = {";
2111 for (StrVector::const_iterator B = D.InLanguage.begin(),
2112 E = D.InLanguage.end(); B != E; ++B)
2113 O << '\"' << *B << "\", ";
2117 /// EmitToolClassDefinition - Emit a Tool class definition.
2118 void EmitToolClassDefinition (const ToolDescription& D,
2119 const OptionDescriptions& OptDescs,
2121 if (D.Name == "root")
2125 O << "class " << D.Name << " : public ";
2131 O << "{\nprivate:\n";
2132 O.indent(Indent1) << "static const char* InputLanguages_[];\n\n";
2135 EmitNameMethod(D, O);
2136 EmitInOutLanguageMethods(D, O);
2137 EmitIsJoinMethod(D, O);
2138 EmitGenerateActionMethods(D, OptDescs, O);
2140 // Close class definition
2143 EmitStaticMemberDefinitions(D, O);
2147 /// EmitOptionDefinitions - Iterate over a list of option descriptions
2148 /// and emit registration code.
2149 void EmitOptionDefinitions (const OptionDescriptions& descs,
2150 bool HasSink, bool HasExterns,
2153 std::vector<OptionDescription> Aliases;
2155 // Emit static cl::Option variables.
2156 for (OptionDescriptions::const_iterator B = descs.begin(),
2157 E = descs.end(); B!=E; ++B) {
2158 const OptionDescription& val = B->second;
2160 if (val.Type == OptionType::Alias) {
2161 Aliases.push_back(val);
2168 O << val.GenTypeDeclaration() << ' '
2169 << val.GenVariableName();
2171 if (val.isExtern()) {
2176 O << "(\"" << val.Name << "\"\n";
2178 if (val.Type == OptionType::Prefix || val.Type == OptionType::PrefixList)
2179 O << ", cl::Prefix";
2181 if (val.isRequired()) {
2182 if (val.isList() && !val.isMultiVal())
2183 O << ", cl::OneOrMore";
2185 O << ", cl::Required";
2187 else if (val.isOneOrMore() && val.isList()) {
2188 O << ", cl::OneOrMore";
2190 else if (val.isZeroOrOne() && val.isList()) {
2191 O << ", cl::ZeroOrOne";
2194 if (val.isReallyHidden()) {
2195 O << ", cl::ReallyHidden";
2197 else if (val.isHidden()) {
2198 O << ", cl::Hidden";
2201 if (val.MultiVal > 1)
2202 O << ", cl::multi_val(" << val.MultiVal << ')';
2205 const std::string& str = val.InitVal->getAsString();
2206 O << ", cl::init(" << str << ')';
2209 if (!val.Help.empty())
2210 O << ", cl::desc(\"" << val.Help << "\")";
2215 // Emit the aliases (they should go after all the 'proper' options).
2216 for (std::vector<OptionDescription>::const_iterator
2217 B = Aliases.begin(), E = Aliases.end(); B != E; ++B) {
2218 const OptionDescription& val = *B;
2220 O << val.GenTypeDeclaration() << ' '
2221 << val.GenVariableName()
2222 << "(\"" << val.Name << '\"';
2224 const OptionDescription& D = descs.FindOption(val.Help);
2225 O << ", cl::aliasopt(" << D.GenVariableName() << ")";
2227 O << ", cl::desc(\"" << "An alias for -" + val.Help << "\"));\n";
2230 // Emit the sink option.
2232 O << (HasExterns ? "extern cl" : "cl")
2233 << "::list<std::string> " << SinkOptionName
2234 << (HasExterns ? ";\n" : "(cl::Sink);\n");
2239 /// EmitPreprocessOptionsCallback - Helper function passed to
2240 /// EmitCaseConstructHandler() by EmitPreprocessOptions().
2241 class EmitPreprocessOptionsCallback : ActionHandlingCallbackBase {
2242 const OptionDescriptions& OptDescs_;
2244 void onUnsetOption(Init* i, unsigned IndentLevel, raw_ostream& O) {
2245 const std::string& OptName = InitPtrToString(i);
2246 const OptionDescription& OptDesc = OptDescs_.FindOption(OptName);
2248 if (OptDesc.isSwitch()) {
2249 O.indent(IndentLevel) << OptDesc.GenVariableName() << " = false;\n";
2251 else if (OptDesc.isParameter()) {
2252 O.indent(IndentLevel) << OptDesc.GenVariableName() << " = \"\";\n";
2254 else if (OptDesc.isList()) {
2255 O.indent(IndentLevel) << OptDesc.GenVariableName() << ".clear();\n";
2258 throw "Can't apply 'unset_option' to alias option '" + OptName + "'!";
2262 void processDag(const Init* I, unsigned IndentLevel, raw_ostream& O)
2264 const DagInit& d = InitPtrToDag(I);
2265 const std::string& OpName = GetOperatorName(d);
2267 if (OpName == "warning") {
2268 this->onWarningDag(d, IndentLevel, O);
2270 else if (OpName == "error") {
2271 this->onWarningDag(d, IndentLevel, O);
2273 else if (OpName == "unset_option") {
2274 checkNumberOfArguments(&d, 1);
2275 Init* I = d.getArg(0);
2276 if (typeid(*I) == typeid(ListInit)) {
2277 const ListInit& DagList = *static_cast<const ListInit*>(I);
2278 for (ListInit::const_iterator B = DagList.begin(), E = DagList.end();
2280 this->onUnsetOption(*B, IndentLevel, O);
2283 this->onUnsetOption(I, IndentLevel, O);
2287 throw "Unknown operator in the option preprocessor: '" + OpName + "'!"
2288 "\nOnly 'warning', 'error' and 'unset_option' are allowed.";
2294 void operator()(const Init* I, unsigned IndentLevel, raw_ostream& O) {
2295 this->processDag(I, IndentLevel, O);
2298 EmitPreprocessOptionsCallback(const OptionDescriptions& OptDescs)
2299 : OptDescs_(OptDescs)
2303 /// EmitPreprocessOptions - Emit the PreprocessOptionsLocal() function.
2304 void EmitPreprocessOptions (const RecordKeeper& Records,
2305 const OptionDescriptions& OptDecs, raw_ostream& O)
2307 O << "void PreprocessOptionsLocal() {\n";
2309 const RecordVector& OptionPreprocessors =
2310 Records.getAllDerivedDefinitions("OptionPreprocessor");
2312 for (RecordVector::const_iterator B = OptionPreprocessors.begin(),
2313 E = OptionPreprocessors.end(); B!=E; ++B) {
2314 DagInit* Case = (*B)->getValueAsDag("preprocessor");
2315 EmitCaseConstructHandler(Case, Indent1,
2316 EmitPreprocessOptionsCallback(OptDecs),
2323 /// EmitPopulateLanguageMap - Emit the PopulateLanguageMapLocal() function.
2324 void EmitPopulateLanguageMap (const RecordKeeper& Records, raw_ostream& O)
2326 O << "void PopulateLanguageMapLocal(LanguageMap& langMap) {\n";
2328 // Get the relevant field out of RecordKeeper
2329 const Record* LangMapRecord = Records.getDef("LanguageMap");
2331 // It is allowed for a plugin to have no language map.
2332 if (LangMapRecord) {
2334 ListInit* LangsToSuffixesList = LangMapRecord->getValueAsListInit("map");
2335 if (!LangsToSuffixesList)
2336 throw std::string("Error in the language map definition!");
2338 for (unsigned i = 0; i < LangsToSuffixesList->size(); ++i) {
2339 const Record* LangToSuffixes = LangsToSuffixesList->getElementAsRecord(i);
2341 const std::string& Lang = LangToSuffixes->getValueAsString("lang");
2342 const ListInit* Suffixes = LangToSuffixes->getValueAsListInit("suffixes");
2344 for (unsigned i = 0; i < Suffixes->size(); ++i)
2345 O.indent(Indent1) << "langMap[\""
2346 << InitPtrToString(Suffixes->getElement(i))
2347 << "\"] = \"" << Lang << "\";\n";
2354 /// IncDecWeight - Helper function passed to EmitCaseConstructHandler()
2355 /// by EmitEdgeClass().
2356 void IncDecWeight (const Init* i, unsigned IndentLevel,
2358 const DagInit& d = InitPtrToDag(i);
2359 const std::string& OpName = GetOperatorName(d);
2361 if (OpName == "inc_weight") {
2362 O.indent(IndentLevel) << "ret += ";
2364 else if (OpName == "dec_weight") {
2365 O.indent(IndentLevel) << "ret -= ";
2367 else if (OpName == "error") {
2368 checkNumberOfArguments(&d, 1);
2369 O.indent(IndentLevel) << "throw std::runtime_error(\""
2370 << InitPtrToString(d.getArg(0))
2375 throw "Unknown operator in edge properties list: '" + OpName + "'!"
2376 "\nOnly 'inc_weight', 'dec_weight' and 'error' are allowed.";
2379 if (d.getNumArgs() > 0)
2380 O << InitPtrToInt(d.getArg(0)) << ";\n";
2386 /// EmitEdgeClass - Emit a single Edge# class.
2387 void EmitEdgeClass (unsigned N, const std::string& Target,
2388 DagInit* Case, const OptionDescriptions& OptDescs,
2391 // Class constructor.
2392 O << "class Edge" << N << ": public Edge {\n"
2394 O.indent(Indent1) << "Edge" << N << "() : Edge(\"" << Target
2397 // Function Weight().
2399 << "unsigned Weight(const InputLanguagesSet& InLangs) const {\n";
2400 O.indent(Indent2) << "unsigned ret = 0;\n";
2402 // Handle the 'case' construct.
2403 EmitCaseConstructHandler(Case, Indent2, IncDecWeight, false, OptDescs, O);
2405 O.indent(Indent2) << "return ret;\n";
2406 O.indent(Indent1) << "};\n\n};\n\n";
2409 /// EmitEdgeClasses - Emit Edge* classes that represent graph edges.
2410 void EmitEdgeClasses (const RecordVector& EdgeVector,
2411 const OptionDescriptions& OptDescs,
2414 for (RecordVector::const_iterator B = EdgeVector.begin(),
2415 E = EdgeVector.end(); B != E; ++B) {
2416 const Record* Edge = *B;
2417 const std::string& NodeB = Edge->getValueAsString("b");
2418 DagInit* Weight = Edge->getValueAsDag("weight");
2420 if (!isDagEmpty(Weight))
2421 EmitEdgeClass(i, NodeB, Weight, OptDescs, O);
2426 /// EmitPopulateCompilationGraph - Emit the PopulateCompilationGraphLocal()
2428 void EmitPopulateCompilationGraph (const RecordVector& EdgeVector,
2429 const ToolDescriptions& ToolDescs,
2432 O << "void PopulateCompilationGraphLocal(CompilationGraph& G) {\n";
2434 for (ToolDescriptions::const_iterator B = ToolDescs.begin(),
2435 E = ToolDescs.end(); B != E; ++B)
2436 O.indent(Indent1) << "G.insertNode(new " << (*B)->Name << "());\n";
2443 for (RecordVector::const_iterator B = EdgeVector.begin(),
2444 E = EdgeVector.end(); B != E; ++B) {
2445 const Record* Edge = *B;
2446 const std::string& NodeA = Edge->getValueAsString("a");
2447 const std::string& NodeB = Edge->getValueAsString("b");
2448 DagInit* Weight = Edge->getValueAsDag("weight");
2450 O.indent(Indent1) << "G.insertEdge(\"" << NodeA << "\", ";
2452 if (isDagEmpty(Weight))
2453 O << "new SimpleEdge(\"" << NodeB << "\")";
2455 O << "new Edge" << i << "()";
2464 /// HookInfo - Information about the hook type and number of arguments.
2467 // A hook can either have a single parameter of type std::vector<std::string>,
2468 // or NumArgs parameters of type const char*.
2469 enum HookType { ListHook, ArgHook };
2474 HookInfo() : Type(ArgHook), NumArgs(1)
2477 HookInfo(HookType T) : Type(T), NumArgs(1)
2480 HookInfo(unsigned N) : Type(ArgHook), NumArgs(N)
2484 typedef llvm::StringMap<HookInfo> HookInfoMap;
2486 /// ExtractHookNames - Extract the hook names from all instances of
2487 /// $CALL(HookName) in the provided command line string/action. Helper
2488 /// function used by FillInHookNames().
2489 class ExtractHookNames {
2490 HookInfoMap& HookNames_;
2491 const OptionDescriptions& OptDescs_;
2493 ExtractHookNames(HookInfoMap& HookNames, const OptionDescriptions& OptDescs)
2494 : HookNames_(HookNames), OptDescs_(OptDescs)
2497 void onAction (const DagInit& Dag) {
2498 if (GetOperatorName(Dag) == "forward_transformed_value") {
2499 checkNumberOfArguments(Dag, 2);
2500 const std::string& OptName = InitPtrToString(Dag.getArg(0));
2501 const std::string& HookName = InitPtrToString(Dag.getArg(1));
2502 const OptionDescription& D = OptDescs_.FindOption(OptName);
2504 HookNames_[HookName] = HookInfo(D.isList() ? HookInfo::ListHook
2505 : HookInfo::ArgHook);
2509 void operator()(const Init* Arg) {
2511 // We're invoked on an action (either a dag or a dag list).
2512 if (typeid(*Arg) == typeid(DagInit)) {
2513 const DagInit& Dag = InitPtrToDag(Arg);
2514 this->onAction(Dag);
2517 else if (typeid(*Arg) == typeid(ListInit)) {
2518 const ListInit& List = InitPtrToList(Arg);
2519 for (ListInit::const_iterator B = List.begin(), E = List.end(); B != E;
2521 const DagInit& Dag = InitPtrToDag(*B);
2522 this->onAction(Dag);
2527 // We're invoked on a command line.
2529 TokenizeCmdline(InitPtrToString(Arg), cmds);
2530 for (StrVector::const_iterator B = cmds.begin(), E = cmds.end();
2532 const std::string& cmd = *B;
2534 if (cmd == "$CALL") {
2535 unsigned NumArgs = 0;
2536 checkedIncrement(B, E, "Syntax error in $CALL invocation!");
2537 const std::string& HookName = *B;
2540 if (HookName.at(0) == ')')
2541 throw "$CALL invoked with no arguments!";
2543 while (++B != E && B->at(0) != ')') {
2547 HookInfoMap::const_iterator H = HookNames_.find(HookName);
2549 if (H != HookNames_.end() && H->second.NumArgs != NumArgs &&
2550 H->second.Type != HookInfo::ArgHook)
2551 throw "Overloading of hooks is not allowed. Overloaded hook: "
2554 HookNames_[HookName] = HookInfo(NumArgs);
2560 void operator()(const DagInit* Test, unsigned, bool) {
2561 this->operator()(Test);
2563 void operator()(const Init* Statement, unsigned) {
2564 this->operator()(Statement);
2568 /// FillInHookNames - Actually extract the hook names from all command
2569 /// line strings. Helper function used by EmitHookDeclarations().
2570 void FillInHookNames(const ToolDescriptions& ToolDescs,
2571 const OptionDescriptions& OptDescs,
2572 HookInfoMap& HookNames)
2574 // For all tool descriptions:
2575 for (ToolDescriptions::const_iterator B = ToolDescs.begin(),
2576 E = ToolDescs.end(); B != E; ++B) {
2577 const ToolDescription& D = *(*B);
2579 // Look for 'forward_transformed_value' in 'actions'.
2581 WalkCase(D.Actions, Id(), ExtractHookNames(HookNames, OptDescs));
2583 // Look for hook invocations in 'cmd_line'.
2586 if (dynamic_cast<StringInit*>(D.CmdLine))
2587 // This is a string.
2588 ExtractHookNames(HookNames, OptDescs).operator()(D.CmdLine);
2590 // This is a 'case' construct.
2591 WalkCase(D.CmdLine, Id(), ExtractHookNames(HookNames, OptDescs));
2595 /// EmitHookDeclarations - Parse CmdLine fields of all the tool
2596 /// property records and emit hook function declaration for each
2597 /// instance of $CALL(HookName).
2598 void EmitHookDeclarations(const ToolDescriptions& ToolDescs,
2599 const OptionDescriptions& OptDescs, raw_ostream& O) {
2600 HookInfoMap HookNames;
2602 FillInHookNames(ToolDescs, OptDescs, HookNames);
2603 if (HookNames.empty())
2606 O << "namespace hooks {\n";
2607 for (HookInfoMap::const_iterator B = HookNames.begin(),
2608 E = HookNames.end(); B != E; ++B) {
2609 const char* HookName = B->first();
2610 const HookInfo& Info = B->second;
2612 O.indent(Indent1) << "std::string " << HookName << "(";
2614 if (Info.Type == HookInfo::ArgHook) {
2615 for (unsigned i = 0, j = Info.NumArgs; i < j; ++i) {
2616 O << "const char* Arg" << i << (i+1 == j ? "" : ", ");
2620 O << "const std::vector<std::string>& Arg";
2628 /// EmitRegisterPlugin - Emit code to register this plugin.
2629 void EmitRegisterPlugin(int Priority, raw_ostream& O) {
2630 O << "struct Plugin : public llvmc::BasePlugin {\n\n";
2631 O.indent(Indent1) << "int Priority() const { return "
2632 << Priority << "; }\n\n";
2633 O.indent(Indent1) << "void PreprocessOptions() const\n";
2634 O.indent(Indent1) << "{ PreprocessOptionsLocal(); }\n\n";
2635 O.indent(Indent1) << "void PopulateLanguageMap(LanguageMap& langMap) const\n";
2636 O.indent(Indent1) << "{ PopulateLanguageMapLocal(langMap); }\n\n";
2638 << "void PopulateCompilationGraph(CompilationGraph& graph) const\n";
2639 O.indent(Indent1) << "{ PopulateCompilationGraphLocal(graph); }\n"
2641 << "static llvmc::RegisterPlugin<Plugin> RP;\n\n";
2644 /// EmitIncludes - Emit necessary #include directives and some
2645 /// additional declarations.
2646 void EmitIncludes(raw_ostream& O) {
2647 O << "#include \"llvm/CompilerDriver/BuiltinOptions.h\"\n"
2648 << "#include \"llvm/CompilerDriver/CompilationGraph.h\"\n"
2649 << "#include \"llvm/CompilerDriver/ForceLinkageMacros.h\"\n"
2650 << "#include \"llvm/CompilerDriver/Plugin.h\"\n"
2651 << "#include \"llvm/CompilerDriver/Tool.h\"\n\n"
2653 << "#include \"llvm/ADT/StringExtras.h\"\n"
2654 << "#include \"llvm/Support/CommandLine.h\"\n"
2655 << "#include \"llvm/Support/raw_ostream.h\"\n\n"
2657 << "#include <algorithm>\n"
2658 << "#include <cstdlib>\n"
2659 << "#include <iterator>\n"
2660 << "#include <stdexcept>\n\n"
2662 << "using namespace llvm;\n"
2663 << "using namespace llvmc;\n\n"
2665 << "extern cl::opt<std::string> OutputFilename;\n\n"
2667 << "inline const char* checkCString(const char* s)\n"
2668 << "{ return s == NULL ? \"\" : s; }\n\n";
2672 /// PluginData - Holds all information about a plugin.
2674 OptionDescriptions OptDescs;
2677 ToolDescriptions ToolDescs;
2682 /// HasSink - Go through the list of tool descriptions and check if
2683 /// there are any with the 'sink' property set.
2684 bool HasSink(const ToolDescriptions& ToolDescs) {
2685 for (ToolDescriptions::const_iterator B = ToolDescs.begin(),
2686 E = ToolDescs.end(); B != E; ++B)
2693 /// HasExterns - Go through the list of option descriptions and check
2694 /// if there are any external options.
2695 bool HasExterns(const OptionDescriptions& OptDescs) {
2696 for (OptionDescriptions::const_iterator B = OptDescs.begin(),
2697 E = OptDescs.end(); B != E; ++B)
2698 if (B->second.isExtern())
2704 /// CollectPluginData - Collect tool and option properties,
2705 /// compilation graph edges and plugin priority from the parse tree.
2706 void CollectPluginData (const RecordKeeper& Records, PluginData& Data) {
2707 // Collect option properties.
2708 const RecordVector& OptionLists =
2709 Records.getAllDerivedDefinitions("OptionList");
2710 CollectOptionDescriptions(OptionLists.begin(), OptionLists.end(),
2713 // Collect tool properties.
2714 const RecordVector& Tools = Records.getAllDerivedDefinitions("Tool");
2715 CollectToolDescriptions(Tools.begin(), Tools.end(), Data.ToolDescs);
2716 Data.HasSink = HasSink(Data.ToolDescs);
2717 Data.HasExterns = HasExterns(Data.OptDescs);
2719 // Collect compilation graph edges.
2720 const RecordVector& CompilationGraphs =
2721 Records.getAllDerivedDefinitions("CompilationGraph");
2722 FillInEdgeVector(CompilationGraphs.begin(), CompilationGraphs.end(),
2725 // Calculate the priority of this plugin.
2726 const RecordVector& Priorities =
2727 Records.getAllDerivedDefinitions("PluginPriority");
2728 Data.Priority = CalculatePriority(Priorities.begin(), Priorities.end());
2731 /// CheckPluginData - Perform some sanity checks on the collected data.
2732 void CheckPluginData(PluginData& Data) {
2733 // Filter out all tools not mentioned in the compilation graph.
2734 FilterNotInGraph(Data.Edges, Data.ToolDescs);
2736 // Typecheck the compilation graph.
2737 TypecheckGraph(Data.Edges, Data.ToolDescs);
2739 // Check that there are no options without side effects (specified
2740 // only in the OptionList).
2741 CheckForSuperfluousOptions(Data.Edges, Data.ToolDescs, Data.OptDescs);
2745 void EmitPluginCode(const PluginData& Data, raw_ostream& O) {
2746 // Emit file header.
2749 // Emit global option registration code.
2750 EmitOptionDefinitions(Data.OptDescs, Data.HasSink, Data.HasExterns, O);
2752 // Emit hook declarations.
2753 EmitHookDeclarations(Data.ToolDescs, Data.OptDescs, O);
2755 O << "namespace {\n\n";
2757 // Emit PreprocessOptionsLocal() function.
2758 EmitPreprocessOptions(Records, Data.OptDescs, O);
2760 // Emit PopulateLanguageMapLocal() function
2761 // (language map maps from file extensions to language names).
2762 EmitPopulateLanguageMap(Records, O);
2764 // Emit Tool classes.
2765 for (ToolDescriptions::const_iterator B = Data.ToolDescs.begin(),
2766 E = Data.ToolDescs.end(); B!=E; ++B)
2767 EmitToolClassDefinition(*(*B), Data.OptDescs, O);
2769 // Emit Edge# classes.
2770 EmitEdgeClasses(Data.Edges, Data.OptDescs, O);
2772 // Emit PopulateCompilationGraphLocal() function.
2773 EmitPopulateCompilationGraph(Data.Edges, Data.ToolDescs, O);
2775 // Emit code for plugin registration.
2776 EmitRegisterPlugin(Data.Priority, O);
2778 O << "} // End anonymous namespace.\n\n";
2780 // Force linkage magic.
2781 O << "namespace llvmc {\n";
2782 O << "LLVMC_FORCE_LINKAGE_DECL(LLVMC_PLUGIN_NAME) {}\n";
2789 // End of anonymous namespace
2792 /// run - The back-end entry point.
2793 void LLVMCConfigurationEmitter::run (raw_ostream &O) {
2797 CollectPluginData(Records, Data);
2798 CheckPluginData(Data);
2800 EmitSourceFileHeader("LLVMC Configuration Library", O);
2801 EmitPluginCode(Data, O);
2803 } catch (std::exception& Error) {
2804 throw Error.what() + std::string(" - usually this means a syntax error.");