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"
22 #include "llvm/Support/Streams.h"
34 //===----------------------------------------------------------------------===//
37 typedef std::vector<Record*> RecordVector;
38 typedef std::vector<std::string> StrVector;
40 //===----------------------------------------------------------------------===//
43 // Indentation strings.
44 const char * Indent1 = " ";
45 const char * Indent2 = " ";
46 const char * Indent3 = " ";
47 const char * Indent4 = " ";
49 // Default help string.
50 const char * DefaultHelpString = "NO HELP MESSAGE PROVIDED";
52 // Name for the "sink" option.
53 const char * SinkOptionName = "AutoGeneratedSinkOption";
55 //===----------------------------------------------------------------------===//
58 int InitPtrToInt(const Init* ptr) {
59 const IntInit& val = dynamic_cast<const IntInit&>(*ptr);
60 return val.getValue();
63 const std::string& InitPtrToString(const Init* ptr) {
64 const StringInit& val = dynamic_cast<const StringInit&>(*ptr);
65 return val.getValue();
68 const ListInit& InitPtrToList(const Init* ptr) {
69 const ListInit& val = dynamic_cast<const ListInit&>(*ptr);
73 const DagInit& InitPtrToDag(const Init* ptr) {
74 const DagInit& val = dynamic_cast<const DagInit&>(*ptr);
78 // checkNumberOfArguments - Ensure that the number of args in d is
79 // less than or equal to min_arguments, otherwise throw an exception.
80 void checkNumberOfArguments (const DagInit* d, unsigned min_arguments) {
81 if (d->getNumArgs() < min_arguments)
82 throw "Property " + d->getOperator()->getAsString()
83 + " has too few arguments!";
86 // isDagEmpty - is this DAG marked with an empty marker?
87 bool isDagEmpty (const DagInit* d) {
88 return d->getOperator()->getAsString() == "empty";
91 //===----------------------------------------------------------------------===//
92 /// Back-end specific code
94 // A command-line option can have one of the following types:
96 // Alias - an alias for another option.
98 // Switch - a simple switch without arguments, e.g. -O2
100 // Parameter - an option that takes one(and only one) argument, e.g. -o file,
103 // ParameterList - same as Parameter, but more than one occurence
104 // of the option is allowed, e.g. -lm -lpthread
106 // Prefix - argument is everything after the prefix,
107 // e.g. -Wa,-foo,-bar, -DNAME=VALUE
109 // PrefixList - same as Prefix, but more than one option occurence is
112 namespace OptionType {
113 enum OptionType { Alias, Switch,
114 Parameter, ParameterList, Prefix, PrefixList};
117 bool IsListOptionType (OptionType::OptionType t) {
118 return (t == OptionType::ParameterList || t == OptionType::PrefixList);
121 // Code duplication here is necessary because one option can affect
122 // several tools and those tools may have different actions associated
123 // with this option. GlobalOptionDescriptions are used to generate
124 // the option registration code, while ToolOptionDescriptions are used
125 // to generate tool-specific code.
127 /// OptionDescription - Base class for option descriptions.
128 struct OptionDescription {
129 OptionType::OptionType Type;
132 OptionDescription(OptionType::OptionType t = OptionType::Switch,
133 const std::string& n = "")
137 const char* GenTypeDeclaration() const {
139 case OptionType::Alias:
141 case OptionType::PrefixList:
142 case OptionType::ParameterList:
143 return "cl::list<std::string>";
144 case OptionType::Switch:
145 return "cl::opt<bool>";
146 case OptionType::Parameter:
147 case OptionType::Prefix:
149 return "cl::opt<std::string>";
153 // Escape commas and other symbols not allowed in the C++ variable
154 // names. Makes it possible to use options with names like "Wa,"
155 // (useful for prefix options).
156 std::string EscapeVariableName(const std::string& Var) const {
158 for (unsigned i = 0; i != Var.size(); ++i) {
163 ret.push_back(Var[i]);
169 std::string GenVariableName() const {
170 const std::string& EscapedName = EscapeVariableName(Name);
172 case OptionType::Alias:
173 return "AutoGeneratedAlias" + EscapedName;
174 case OptionType::Switch:
175 return "AutoGeneratedSwitch" + EscapedName;
176 case OptionType::Prefix:
177 return "AutoGeneratedPrefix" + EscapedName;
178 case OptionType::PrefixList:
179 return "AutoGeneratedPrefixList" + EscapedName;
180 case OptionType::Parameter:
181 return "AutoGeneratedParameter" + EscapedName;
182 case OptionType::ParameterList:
184 return "AutoGeneratedParameterList" + EscapedName;
190 // Global option description.
192 namespace GlobalOptionDescriptionFlags {
193 enum GlobalOptionDescriptionFlags { Required = 0x1 };
196 struct GlobalOptionDescription : public OptionDescription {
200 // We need to provide a default constructor because
201 // StringMap can only store DefaultConstructible objects.
202 GlobalOptionDescription() : OptionDescription(), Flags(0)
205 GlobalOptionDescription (OptionType::OptionType t, const std::string& n,
206 const std::string& h = DefaultHelpString)
207 : OptionDescription(t, n), Help(h), Flags(0)
210 bool isRequired() const {
211 return Flags & GlobalOptionDescriptionFlags::Required;
214 Flags |= GlobalOptionDescriptionFlags::Required;
217 /// Merge - Merge two option descriptions.
218 void Merge (const GlobalOptionDescription& other)
220 if (other.Type != Type)
221 throw "Conflicting definitions for the option " + Name + "!";
223 if (Help == DefaultHelpString)
225 else if (other.Help != DefaultHelpString) {
226 llvm::cerr << "Warning: more than one help string defined for option "
230 Flags |= other.Flags;
234 /// GlobalOptionDescriptions - A GlobalOptionDescription array
235 /// together with some flags affecting generation of option
237 struct GlobalOptionDescriptions {
238 typedef StringMap<GlobalOptionDescription> container_type;
239 typedef container_type::const_iterator const_iterator;
241 /// Descriptions - A list of GlobalOptionDescriptions.
242 container_type Descriptions;
243 /// HasSink - Should the emitter generate a "cl::sink" option?
246 const GlobalOptionDescription& FindOption(const std::string& OptName) const {
247 const_iterator I = Descriptions.find(OptName);
248 if (I != Descriptions.end())
251 throw OptName + ": no such option!";
254 // Insert new GlobalOptionDescription into GlobalOptionDescriptions list
255 void insertDescription (const GlobalOptionDescription& o)
257 container_type::iterator I = Descriptions.find(o.Name);
258 if (I != Descriptions.end()) {
259 GlobalOptionDescription& D = I->second;
263 Descriptions[o.Name] = o;
267 // Support for STL-style iteration
268 const_iterator begin() const { return Descriptions.begin(); }
269 const_iterator end() const { return Descriptions.end(); }
273 // Tool-local option description.
275 // Properties without arguments are implemented as flags.
276 namespace ToolOptionDescriptionFlags {
277 enum ToolOptionDescriptionFlags { StopCompilation = 0x1,
278 Forward = 0x2, UnpackValues = 0x4};
280 namespace OptionPropertyType {
281 enum OptionPropertyType { AppendCmd, OutputSuffix };
284 typedef std::pair<OptionPropertyType::OptionPropertyType, std::string>
286 typedef SmallVector<OptionProperty, 4> OptionPropertyList;
288 struct ToolOptionDescription : public OptionDescription {
290 OptionPropertyList Props;
292 // StringMap can only store DefaultConstructible objects
293 ToolOptionDescription() : OptionDescription(), Flags(0) {}
295 ToolOptionDescription (OptionType::OptionType t, const std::string& n)
296 : OptionDescription(t, n)
299 // Various boolean properties
300 bool isStopCompilation() const {
301 return Flags & ToolOptionDescriptionFlags::StopCompilation;
303 void setStopCompilation() {
304 Flags |= ToolOptionDescriptionFlags::StopCompilation;
307 bool isForward() const {
308 return Flags & ToolOptionDescriptionFlags::Forward;
311 Flags |= ToolOptionDescriptionFlags::Forward;
314 bool isUnpackValues() const {
315 return Flags & ToolOptionDescriptionFlags::UnpackValues;
317 void setUnpackValues() {
318 Flags |= ToolOptionDescriptionFlags::UnpackValues;
321 void AddProperty (OptionPropertyType::OptionPropertyType t,
322 const std::string& val)
324 Props.push_back(std::make_pair(t, val));
328 typedef StringMap<ToolOptionDescription> ToolOptionDescriptions;
330 // Tool information record
332 namespace ToolFlags {
333 enum ToolFlags { Join = 0x1, Sink = 0x2 };
336 struct ToolProperties : public RefCountedBase<ToolProperties> {
339 StrVector InLanguage;
340 std::string OutLanguage;
341 std::string OutputSuffix;
343 ToolOptionDescriptions OptDescs;
345 // Various boolean properties
346 void setSink() { Flags |= ToolFlags::Sink; }
347 bool isSink() const { return Flags & ToolFlags::Sink; }
348 void setJoin() { Flags |= ToolFlags::Join; }
349 bool isJoin() const { return Flags & ToolFlags::Join; }
351 // Default ctor here is needed because StringMap can only store
352 // DefaultConstructible objects
353 ToolProperties() : Flags(0) {}
354 ToolProperties (const std::string& n) : Name(n), Flags(0) {}
358 /// ToolPropertiesList - A list of Tool information records
359 /// IntrusiveRefCntPtrs are used here because StringMap has no copy
360 /// constructor (and we want to avoid copying ToolProperties anyway).
361 typedef std::vector<IntrusiveRefCntPtr<ToolProperties> > ToolPropertiesList;
364 /// CollectOptionProperties - Function object for iterating over a
365 /// list (usually, a DAG) of option property records.
366 class CollectOptionProperties {
368 // Implementation details.
370 /// OptionPropertyHandler - a function that extracts information
371 /// about a given option property from its DAG representation.
372 typedef void (CollectOptionProperties::* OptionPropertyHandler)
375 /// OptionPropertyHandlerMap - A map from option property names to
376 /// option property handlers
377 typedef StringMap<OptionPropertyHandler> OptionPropertyHandlerMap;
379 static OptionPropertyHandlerMap optionPropertyHandlers_;
380 static bool staticMembersInitialized_;
382 /// This is where the information is stored
384 /// toolProps_ - Properties of the current Tool.
385 ToolProperties* toolProps_;
386 /// optDescs_ - OptionDescriptions table (used to register options
388 GlobalOptionDescription& optDesc_;
392 explicit CollectOptionProperties(ToolProperties* TP,
393 GlobalOptionDescription& OD)
394 : toolProps_(TP), optDesc_(OD)
396 if (!staticMembersInitialized_) {
397 optionPropertyHandlers_["append_cmd"] =
398 &CollectOptionProperties::onAppendCmd;
399 optionPropertyHandlers_["forward"] =
400 &CollectOptionProperties::onForward;
401 optionPropertyHandlers_["help"] =
402 &CollectOptionProperties::onHelp;
403 optionPropertyHandlers_["output_suffix"] =
404 &CollectOptionProperties::onOutputSuffix;
405 optionPropertyHandlers_["required"] =
406 &CollectOptionProperties::onRequired;
407 optionPropertyHandlers_["stop_compilation"] =
408 &CollectOptionProperties::onStopCompilation;
409 optionPropertyHandlers_["unpack_values"] =
410 &CollectOptionProperties::onUnpackValues;
412 staticMembersInitialized_ = true;
416 /// operator() - Gets called for every option property; Just forwards
417 /// to the corresponding property handler.
418 void operator() (Init* i) {
419 const DagInit& option_property = InitPtrToDag(i);
420 const std::string& option_property_name
421 = option_property.getOperator()->getAsString();
422 OptionPropertyHandlerMap::iterator method
423 = optionPropertyHandlers_.find(option_property_name);
425 if (method != optionPropertyHandlers_.end()) {
426 OptionPropertyHandler h = method->second;
427 (this->*h)(&option_property);
430 throw "Unknown option property: " + option_property_name + "!";
436 /// Option property handlers --
437 /// Methods that handle properties that are common for all types of
438 /// options (like append_cmd, stop_compilation)
440 void onAppendCmd (const DagInit* d) {
441 checkNumberOfArguments(d, 1);
443 const std::string& cmd = InitPtrToString(d->getArg(0));
445 toolProps_->OptDescs[optDesc_.Name].
446 AddProperty(OptionPropertyType::AppendCmd, cmd);
449 void onOutputSuffix (const DagInit* d) {
450 checkNumberOfArguments(d, 1);
452 const std::string& suf = InitPtrToString(d->getArg(0));
454 if (toolProps_->OptDescs[optDesc_.Name].Type != OptionType::Switch)
455 throw "Option " + optDesc_.Name
456 + " can't have 'output_suffix' property since it isn't a switch!";
458 toolProps_->OptDescs[optDesc_.Name].AddProperty
459 (OptionPropertyType::OutputSuffix, suf);
462 void onForward (const DagInit* d) {
463 checkNumberOfArguments(d, 0);
465 toolProps_->OptDescs[optDesc_.Name].setForward();
468 void onHelp (const DagInit* d) {
469 checkNumberOfArguments(d, 1);
470 const std::string& help_message = InitPtrToString(d->getArg(0));
472 optDesc_.Help = help_message;
475 void onRequired (const DagInit* d) {
476 checkNumberOfArguments(d, 0);
478 optDesc_.setRequired();
481 void onStopCompilation (const DagInit* d) {
482 checkNumberOfArguments(d, 0);
484 if (optDesc_.Type != OptionType::Switch)
485 throw std::string("Only options of type Switch can stop compilation!");
486 toolProps_->OptDescs[optDesc_.Name].setStopCompilation();
489 void onUnpackValues (const DagInit* d) {
490 checkNumberOfArguments(d, 0);
492 toolProps_->OptDescs[optDesc_.Name].setUnpackValues();
497 /// checkToolProps - Throw an error if toolProps_ == 0.
498 void checkToolProps(const DagInit* d) {
500 throw "Option property " + d->getOperator()->getAsString()
501 + " can't be used in this context";
506 CollectOptionProperties::OptionPropertyHandlerMap
507 CollectOptionProperties::optionPropertyHandlers_;
509 bool CollectOptionProperties::staticMembersInitialized_ = false;
512 /// processOptionProperties - Go through the list of option
513 /// properties and call a corresponding handler for each.
514 void processOptionProperties (const DagInit* d, ToolProperties* t,
515 GlobalOptionDescription& o) {
516 checkNumberOfArguments(d, 2);
517 DagInit::const_arg_iterator B = d->arg_begin();
518 // Skip the first argument: it's always the option name.
520 std::for_each(B, d->arg_end(), CollectOptionProperties(t, o));
523 /// AddOption - A function object wrapper for
524 /// processOptionProperties. Used by CollectProperties and
525 /// CollectPropertiesFromOptionList.
528 GlobalOptionDescriptions& OptDescs_;
529 ToolProperties* ToolProps_;
532 explicit AddOption(GlobalOptionDescriptions& OD, ToolProperties* TP = 0)
533 : OptDescs_(OD), ToolProps_(TP)
536 void operator()(const Init* i) {
537 const DagInit& d = InitPtrToDag(i);
538 checkNumberOfArguments(&d, 2);
540 const OptionType::OptionType Type =
541 getOptionType(d.getOperator()->getAsString());
542 const std::string& Name = InitPtrToString(d.getArg(0));
544 GlobalOptionDescription OD(Type, Name);
545 if (Type != OptionType::Alias) {
546 processOptionProperties(&d, ToolProps_, OD);
548 ToolProps_->OptDescs[Name].Type = Type;
549 ToolProps_->OptDescs[Name].Name = Name;
553 OD.Help = InitPtrToString(d.getArg(1));
555 OptDescs_.insertDescription(OD);
559 OptionType::OptionType getOptionType(const std::string& T) const {
560 if (T == "alias_option")
561 return OptionType::Alias;
562 else if (T == "switch_option")
563 return OptionType::Switch;
564 else if (T == "parameter_option")
565 return OptionType::Parameter;
566 else if (T == "parameter_list_option")
567 return OptionType::ParameterList;
568 else if (T == "prefix_option")
569 return OptionType::Prefix;
570 else if (T == "prefix_list_option")
571 return OptionType::PrefixList;
573 throw "Unknown option type: " + T + '!';
578 /// CollectProperties - Function object for iterating over a list of
579 /// tool property records.
580 class CollectProperties {
583 // Implementation details
585 /// PropertyHandler - a function that extracts information
586 /// about a given tool property from its DAG representation
587 typedef void (CollectProperties::*PropertyHandler)(const DagInit*);
589 /// PropertyHandlerMap - A map from property names to property
591 typedef StringMap<PropertyHandler> PropertyHandlerMap;
593 // Static maps from strings to CollectProperties methods("handlers")
594 static PropertyHandlerMap propertyHandlers_;
595 static bool staticMembersInitialized_;
598 /// This is where the information is stored
600 /// toolProps_ - Properties of the current Tool.
601 ToolProperties& toolProps_;
602 /// optDescs_ - OptionDescriptions table (used to register options
604 GlobalOptionDescriptions& optDescs_;
608 explicit CollectProperties (ToolProperties& p, GlobalOptionDescriptions& d)
609 : toolProps_(p), optDescs_(d)
611 if (!staticMembersInitialized_) {
612 propertyHandlers_["cmd_line"] = &CollectProperties::onCmdLine;
613 propertyHandlers_["in_language"] = &CollectProperties::onInLanguage;
614 propertyHandlers_["join"] = &CollectProperties::onJoin;
615 propertyHandlers_["out_language"] = &CollectProperties::onOutLanguage;
616 propertyHandlers_["output_suffix"] = &CollectProperties::onOutputSuffix;
617 propertyHandlers_["parameter_option"]
618 = &CollectProperties::addOption;
619 propertyHandlers_["parameter_list_option"] =
620 &CollectProperties::addOption;
621 propertyHandlers_["prefix_option"] = &CollectProperties::addOption;
622 propertyHandlers_["prefix_list_option"] =
623 &CollectProperties::addOption;
624 propertyHandlers_["sink"] = &CollectProperties::onSink;
625 propertyHandlers_["switch_option"] = &CollectProperties::addOption;
626 propertyHandlers_["alias_option"] = &CollectProperties::addOption;
628 staticMembersInitialized_ = true;
632 /// operator() - Gets called for every tool property; Just forwards
633 /// to the corresponding property handler.
634 void operator() (Init* i) {
635 const DagInit& d = InitPtrToDag(i);
636 const std::string& property_name = d.getOperator()->getAsString();
637 PropertyHandlerMap::iterator method
638 = propertyHandlers_.find(property_name);
640 if (method != propertyHandlers_.end()) {
641 PropertyHandler h = method->second;
645 throw "Unknown tool property: " + property_name + "!";
651 /// Property handlers --
652 /// Functions that extract information about tool properties from
653 /// DAG representation.
655 void onCmdLine (const DagInit* d) {
656 checkNumberOfArguments(d, 1);
657 toolProps_.CmdLine = d->getArg(0);
660 void onInLanguage (const DagInit* d) {
661 checkNumberOfArguments(d, 1);
662 Init* arg = d->getArg(0);
664 // Find out the argument's type.
665 if (typeid(*arg) == typeid(StringInit)) {
667 toolProps_.InLanguage.push_back(InitPtrToString(arg));
671 const ListInit& lst = InitPtrToList(arg);
672 StrVector& out = toolProps_.InLanguage;
674 // Copy strings to the output vector.
675 for (ListInit::const_iterator B = lst.begin(), E = lst.end();
677 out.push_back(InitPtrToString(*B));
680 // Remove duplicates.
681 std::sort(out.begin(), out.end());
682 StrVector::iterator newE = std::unique(out.begin(), out.end());
683 out.erase(newE, out.end());
687 void onJoin (const DagInit* d) {
688 checkNumberOfArguments(d, 0);
689 toolProps_.setJoin();
692 void onOutLanguage (const DagInit* d) {
693 checkNumberOfArguments(d, 1);
694 toolProps_.OutLanguage = InitPtrToString(d->getArg(0));
697 void onOutputSuffix (const DagInit* d) {
698 checkNumberOfArguments(d, 1);
699 toolProps_.OutputSuffix = InitPtrToString(d->getArg(0));
702 void onSink (const DagInit* d) {
703 checkNumberOfArguments(d, 0);
704 optDescs_.HasSink = true;
705 toolProps_.setSink();
708 // Just forwards to the AddOption function object. Somewhat
709 // non-optimal, but avoids code duplication.
710 void addOption (const DagInit* d) {
711 checkNumberOfArguments(d, 2);
712 AddOption(optDescs_, &toolProps_)(d);
717 // Defintions of static members of CollectProperties.
718 CollectProperties::PropertyHandlerMap CollectProperties::propertyHandlers_;
719 bool CollectProperties::staticMembersInitialized_ = false;
722 /// CollectToolProperties - Gather information about tool properties
723 /// from the parsed TableGen data (basically a wrapper for the
724 /// CollectProperties function object).
725 void CollectToolProperties (RecordVector::const_iterator B,
726 RecordVector::const_iterator E,
727 ToolPropertiesList& TPList,
728 GlobalOptionDescriptions& OptDescs)
730 // Iterate over a properties list of every Tool definition
733 // Throws an exception if the value does not exist.
734 ListInit* PropList = T->getValueAsListInit("properties");
736 IntrusiveRefCntPtr<ToolProperties>
737 ToolProps(new ToolProperties(T->getName()));
739 std::for_each(PropList->begin(), PropList->end(),
740 CollectProperties(*ToolProps, OptDescs));
741 TPList.push_back(ToolProps);
746 /// CollectPropertiesFromOptionList - Gather information about
747 /// *global* option properties from the OptionList.
748 void CollectPropertiesFromOptionList (RecordVector::const_iterator B,
749 RecordVector::const_iterator E,
750 GlobalOptionDescriptions& OptDescs)
752 // Iterate over a properties list of every Tool definition
755 RecordVector::value_type T = *B;
756 // Throws an exception if the value does not exist.
757 ListInit* PropList = T->getValueAsListInit("options");
759 std::for_each(PropList->begin(), PropList->end(), AddOption(OptDescs));
763 /// EmitCaseTest1Arg - Helper function used by
764 /// EmitCaseConstructHandler.
765 bool EmitCaseTest1Arg(const std::string& TestName,
767 const GlobalOptionDescriptions& OptDescs,
769 checkNumberOfArguments(&d, 1);
770 const std::string& OptName = InitPtrToString(d.getArg(0));
771 if (TestName == "switch_on") {
772 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
773 if (OptDesc.Type != OptionType::Switch)
774 throw OptName + ": incorrect option type!";
775 O << OptDesc.GenVariableName();
777 } else if (TestName == "input_languages_contain") {
778 O << "InLangs.count(\"" << OptName << "\") != 0";
780 } else if (TestName == "in_language") {
781 // Works only for cmd_line!
782 O << "GetLanguage(inFile) == \"" << OptName << '\"';
784 } else if (TestName == "not_empty") {
785 if (OptName == "o") {
786 O << "!OutputFilename.empty()";
790 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
791 if (OptDesc.Type == OptionType::Switch)
792 throw OptName + ": incorrect option type!";
793 O << '!' << OptDesc.GenVariableName() << ".empty()";
801 /// EmitCaseTest2Args - Helper function used by
802 /// EmitCaseConstructHandler.
803 bool EmitCaseTest2Args(const std::string& TestName,
805 const char* IndentLevel,
806 const GlobalOptionDescriptions& OptDescs,
808 checkNumberOfArguments(&d, 2);
809 const std::string& OptName = InitPtrToString(d.getArg(0));
810 const std::string& OptArg = InitPtrToString(d.getArg(1));
811 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
813 if (TestName == "parameter_equals") {
814 if (OptDesc.Type != OptionType::Parameter
815 && OptDesc.Type != OptionType::Prefix)
816 throw OptName + ": incorrect option type!";
817 O << OptDesc.GenVariableName() << " == \"" << OptArg << "\"";
820 else if (TestName == "element_in_list") {
821 if (OptDesc.Type != OptionType::ParameterList
822 && OptDesc.Type != OptionType::PrefixList)
823 throw OptName + ": incorrect option type!";
824 const std::string& VarName = OptDesc.GenVariableName();
825 O << "std::find(" << VarName << ".begin(),\n"
826 << IndentLevel << Indent1 << VarName << ".end(), \""
827 << OptArg << "\") != " << VarName << ".end()";
834 // Forward declaration.
835 // EmitLogicalOperationTest and EmitCaseTest are mutually recursive.
836 void EmitCaseTest(const DagInit& d, const char* IndentLevel,
837 const GlobalOptionDescriptions& OptDescs,
840 /// EmitLogicalOperationTest - Helper function used by
841 /// EmitCaseConstructHandler.
842 void EmitLogicalOperationTest(const DagInit& d, const char* LogicOp,
843 const char* IndentLevel,
844 const GlobalOptionDescriptions& OptDescs,
847 for (unsigned j = 0, NumArgs = d.getNumArgs(); j < NumArgs; ++j) {
848 const DagInit& InnerTest = InitPtrToDag(d.getArg(j));
849 EmitCaseTest(InnerTest, IndentLevel, OptDescs, O);
850 if (j != NumArgs - 1)
851 O << ")\n" << IndentLevel << Indent1 << ' ' << LogicOp << " (";
857 /// EmitCaseTest - Helper function used by EmitCaseConstructHandler.
858 void EmitCaseTest(const DagInit& d, const char* IndentLevel,
859 const GlobalOptionDescriptions& OptDescs,
861 const std::string& TestName = d.getOperator()->getAsString();
863 if (TestName == "and")
864 EmitLogicalOperationTest(d, "&&", IndentLevel, OptDescs, O);
865 else if (TestName == "or")
866 EmitLogicalOperationTest(d, "||", IndentLevel, OptDescs, O);
867 else if (EmitCaseTest1Arg(TestName, d, OptDescs, O))
869 else if (EmitCaseTest2Args(TestName, d, IndentLevel, OptDescs, O))
872 throw TestName + ": unknown edge property!";
875 // Emit code that handles the 'case' construct.
876 // Takes a function object that should emit code for every case clause.
877 // Callback's type is
878 // void F(Init* Statement, const char* IndentLevel, std::ostream& O).
879 template <typename F>
880 void EmitCaseConstructHandler(const DagInit* d, const char* IndentLevel,
881 const F& Callback, bool EmitElseIf,
882 const GlobalOptionDescriptions& OptDescs,
884 assert(d->getOperator()->getAsString() == "case");
886 unsigned numArgs = d->getNumArgs();
887 if (d->getNumArgs() < 2)
888 throw "There should be at least one clause in the 'case' expression:\n"
891 for (unsigned i = 0; i != numArgs; ++i) {
892 const DagInit& Test = InitPtrToDag(d->getArg(i));
895 if (Test.getOperator()->getAsString() == "default") {
897 throw std::string("The 'default' clause should be the last in the"
898 "'case' construct!");
899 O << IndentLevel << "else {\n";
902 O << IndentLevel << ((i != 0 && EmitElseIf) ? "else if (" : "if (");
903 EmitCaseTest(Test, IndentLevel, OptDescs, O);
907 // Emit the corresponding statement.
910 throw "Case construct handler: no corresponding action "
911 "found for the test " + Test.getAsString() + '!';
913 Init* arg = d->getArg(i);
914 if (dynamic_cast<DagInit*>(arg)
915 && static_cast<DagInit*>(arg)->getOperator()->getAsString() == "case") {
916 EmitCaseConstructHandler(static_cast<DagInit*>(arg),
917 (std::string(IndentLevel) + Indent1).c_str(),
918 Callback, EmitElseIf, OptDescs, O);
921 Callback(arg, IndentLevel, O);
923 O << IndentLevel << "}\n";
927 /// EmitForwardOptionPropertyHandlingCode - Helper function used to
928 /// implement EmitOptionPropertyHandlingCode(). Emits code for
929 /// handling the (forward) option property.
930 void EmitForwardOptionPropertyHandlingCode (const ToolOptionDescription& D,
933 case OptionType::Switch:
934 O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
936 case OptionType::Parameter:
937 O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
938 O << Indent3 << "vec.push_back(" << D.GenVariableName() << ");\n";
940 case OptionType::Prefix:
941 O << Indent3 << "vec.push_back(\"-" << D.Name << "\" + "
942 << D.GenVariableName() << ");\n";
944 case OptionType::PrefixList:
945 O << Indent3 << "for (" << D.GenTypeDeclaration()
946 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
947 << Indent3 << "E = " << D.GenVariableName() << ".end(); B != E; ++B)\n"
948 << Indent4 << "vec.push_back(\"-" << D.Name << "\" + "
951 case OptionType::ParameterList:
952 O << Indent3 << "for (" << D.GenTypeDeclaration()
953 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
954 << Indent3 << "E = " << D.GenVariableName()
955 << ".end() ; B != E; ++B) {\n"
956 << Indent4 << "vec.push_back(\"-" << D.Name << "\");\n"
957 << Indent4 << "vec.push_back(*B);\n"
960 case OptionType::Alias:
962 throw std::string("Aliases are not allowed in tool option descriptions!");
966 // ToolOptionHasInterestingProperties - A helper function used by
967 // EmitOptionPropertyHandlingCode() that tells us whether we should
968 // emit any property handling code at all.
969 bool ToolOptionHasInterestingProperties(const ToolOptionDescription& D) {
971 for (OptionPropertyList::const_iterator B = D.Props.begin(),
972 E = D.Props.end(); B != E; ++B) {
973 const OptionProperty& OptProp = *B;
974 if (OptProp.first == OptionPropertyType::AppendCmd)
977 if (D.isForward() || D.isUnpackValues())
982 /// EmitOptionPropertyHandlingCode - Helper function used by
983 /// EmitGenerateActionMethod(). Emits code that handles option
985 void EmitOptionPropertyHandlingCode (const ToolOptionDescription& D,
988 if (!ToolOptionHasInterestingProperties(D))
990 // Start of the if-clause.
991 O << Indent2 << "if (";
992 if (D.Type == OptionType::Switch)
993 O << D.GenVariableName();
995 O << '!' << D.GenVariableName() << ".empty()";
999 // Handle option properties that take an argument.
1000 for (OptionPropertyList::const_iterator B = D.Props.begin(),
1001 E = D.Props.end(); B!=E; ++B) {
1002 const OptionProperty& val = *B;
1004 switch (val.first) {
1005 // (append_cmd cmd) property
1006 case OptionPropertyType::AppendCmd:
1007 O << Indent3 << "vec.push_back(\"" << val.second << "\");\n";
1009 // Other properties with argument
1017 // (forward) property
1019 EmitForwardOptionPropertyHandlingCode(D, O);
1021 // (unpack_values) property
1022 if (D.isUnpackValues()) {
1023 if (IsListOptionType(D.Type)) {
1024 O << Indent3 << "for (" << D.GenTypeDeclaration()
1025 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
1026 << Indent3 << "E = " << D.GenVariableName()
1027 << ".end(); B != E; ++B)\n"
1028 << Indent4 << "llvm::SplitString(*B, vec, \",\");\n";
1030 else if (D.Type == OptionType::Prefix || D.Type == OptionType::Parameter){
1031 O << Indent3 << "llvm::SplitString("
1032 << D.GenVariableName() << ", vec, \",\");\n";
1035 throw std::string("Switches can't have unpack_values property!");
1039 // End of the if-clause.
1040 O << Indent2 << "}\n";
1043 /// SubstituteSpecialCommands - Perform string substitution for $CALL
1044 /// and $ENV. Helper function used by EmitCmdLineVecFill().
1045 std::string SubstituteSpecialCommands(const std::string& cmd) {
1046 size_t cparen = cmd.find(")");
1049 if (cmd.find("$CALL(") == 0) {
1050 if (cmd.size() == 6)
1051 throw std::string("$CALL invocation: empty argument list!");
1054 ret += std::string(cmd.begin() + 6, cmd.begin() + cparen);
1057 else if (cmd.find("$ENV(") == 0) {
1058 if (cmd.size() == 5)
1059 throw std::string("$ENV invocation: empty argument list!");
1061 ret += "std::getenv(\"";
1062 ret += std::string(cmd.begin() + 5, cmd.begin() + cparen);
1066 throw "Unknown special command: " + cmd;
1069 if (cmd.begin() + cparen + 1 != cmd.end()) {
1070 ret += " + std::string(\"";
1071 ret += (cmd.c_str() + cparen + 1);
1078 /// EmitCmdLineVecFill - Emit code that fills in the command line
1079 /// vector. Helper function used by EmitGenerateActionMethod().
1080 void EmitCmdLineVecFill(const Init* CmdLine, const std::string& ToolName,
1081 bool Version, const char* IndentLevel,
1084 SplitString(InitPtrToString(CmdLine), StrVec);
1086 throw "Tool " + ToolName + " has empty command line!";
1088 StrVector::const_iterator I = StrVec.begin();
1090 for (StrVector::const_iterator E = StrVec.end(); I != E; ++I) {
1091 const std::string& cmd = *I;
1093 if (cmd.at(0) == '$') {
1094 if (cmd == "$INFILE") {
1096 O << "for (PathVector::const_iterator B = inFiles.begin()"
1097 << ", E = inFiles.end();\n"
1098 << IndentLevel << "B != E; ++B)\n"
1099 << IndentLevel << Indent1 << "vec.push_back(B->toString());\n";
1101 O << "vec.push_back(inFile.toString());\n";
1103 else if (cmd == "$OUTFILE") {
1104 O << "vec.push_back(outFile.toString());\n";
1107 O << "vec.push_back(" << SubstituteSpecialCommands(cmd);
1112 O << "vec.push_back(\"" << cmd << "\");\n";
1115 O << IndentLevel << "cmd = "
1116 << ((StrVec[0][0] == '$') ? SubstituteSpecialCommands(StrVec[0])
1117 : "\"" + StrVec[0] + "\"")
1121 /// EmitCmdLineVecFillCallback - A function object wrapper around
1122 /// EmitCmdLineVecFill(). Used by EmitGenerateActionMethod() as an
1123 /// argument to EmitCaseConstructHandler().
1124 class EmitCmdLineVecFillCallback {
1126 const std::string& ToolName;
1128 EmitCmdLineVecFillCallback(bool Ver, const std::string& TN)
1129 : Version(Ver), ToolName(TN) {}
1131 void operator()(const Init* Statement, const char* IndentLevel,
1132 std::ostream& O) const
1134 EmitCmdLineVecFill(Statement, ToolName, Version,
1135 (std::string(IndentLevel) + Indent1).c_str(), O);
1139 // EmitGenerateActionMethod - Emit one of two versions of the
1140 // Tool::GenerateAction() method.
1141 void EmitGenerateActionMethod (const ToolProperties& P,
1142 const GlobalOptionDescriptions& OptDescs,
1143 bool Version, std::ostream& O) {
1145 O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n";
1147 O << Indent1 << "Action GenerateAction(const sys::Path& inFile,\n";
1149 O << Indent2 << "const sys::Path& outFile,\n"
1150 << Indent2 << "const InputLanguagesSet& InLangs) const\n"
1152 << Indent2 << "const char* cmd;\n"
1153 << Indent2 << "std::vector<std::string> vec;\n";
1155 // cmd_line is either a string or a 'case' construct.
1156 if (typeid(*P.CmdLine) == typeid(StringInit))
1157 EmitCmdLineVecFill(P.CmdLine, P.Name, Version, Indent2, O);
1159 EmitCaseConstructHandler(&InitPtrToDag(P.CmdLine), Indent2,
1160 EmitCmdLineVecFillCallback(Version, P.Name),
1163 // For every understood option, emit handling code.
1164 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1165 E = P.OptDescs.end(); B != E; ++B) {
1166 const ToolOptionDescription& val = B->second;
1167 EmitOptionPropertyHandlingCode(val, O);
1170 // Handle the Sink property.
1172 O << Indent2 << "if (!" << SinkOptionName << ".empty()) {\n"
1173 << Indent3 << "vec.insert(vec.end(), "
1174 << SinkOptionName << ".begin(), " << SinkOptionName << ".end());\n"
1175 << Indent2 << "}\n";
1178 O << Indent2 << "return Action(cmd, vec);\n"
1179 << Indent1 << "}\n\n";
1182 /// EmitGenerateActionMethods - Emit two GenerateAction() methods for
1183 /// a given Tool class.
1184 void EmitGenerateActionMethods (const ToolProperties& P,
1185 const GlobalOptionDescriptions& OptDescs,
1188 O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n"
1189 << Indent2 << "const llvm::sys::Path& outFile,\n"
1190 << Indent2 << "const InputLanguagesSet& InLangs) const\n"
1192 << Indent2 << "throw std::runtime_error(\"" << P.Name
1193 << " is not a Join tool!\");\n"
1194 << Indent1 << "}\n\n";
1196 EmitGenerateActionMethod(P, OptDescs, true, O);
1198 EmitGenerateActionMethod(P, OptDescs, false, O);
1201 /// EmitIsLastMethod - Emit the IsLast() method for a given Tool
1203 void EmitIsLastMethod (const ToolProperties& P, std::ostream& O) {
1204 O << Indent1 << "bool IsLast() const {\n"
1205 << Indent2 << "bool last = false;\n";
1207 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1208 E = P.OptDescs.end(); B != E; ++B) {
1209 const ToolOptionDescription& val = B->second;
1211 if (val.isStopCompilation())
1213 << "if (" << val.GenVariableName()
1214 << ")\n" << Indent3 << "last = true;\n";
1217 O << Indent2 << "return last;\n"
1218 << Indent1 << "}\n\n";
1221 /// EmitInOutLanguageMethods - Emit the [Input,Output]Language()
1222 /// methods for a given Tool class.
1223 void EmitInOutLanguageMethods (const ToolProperties& P, std::ostream& O) {
1224 O << Indent1 << "const char** InputLanguages() const {\n"
1225 << Indent2 << "return InputLanguages_;\n"
1226 << Indent1 << "}\n\n";
1228 O << Indent1 << "const char* OutputLanguage() const {\n"
1229 << Indent2 << "return \"" << P.OutLanguage << "\";\n"
1230 << Indent1 << "}\n\n";
1233 /// EmitOutputSuffixMethod - Emit the OutputSuffix() method for a
1234 /// given Tool class.
1235 void EmitOutputSuffixMethod (const ToolProperties& P, std::ostream& O) {
1236 O << Indent1 << "const char* OutputSuffix() const {\n"
1237 << Indent2 << "const char* ret = \"" << P.OutputSuffix << "\";\n";
1239 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1240 E = P.OptDescs.end(); B != E; ++B) {
1241 const ToolOptionDescription& OptDesc = B->second;
1242 for (OptionPropertyList::const_iterator B = OptDesc.Props.begin(),
1243 E = OptDesc.Props.end(); B != E; ++B) {
1244 const OptionProperty& OptProp = *B;
1245 if (OptProp.first == OptionPropertyType::OutputSuffix) {
1246 O << Indent2 << "if (" << OptDesc.GenVariableName() << ")\n"
1247 << Indent3 << "ret = \"" << OptProp.second << "\";\n";
1252 O << Indent2 << "return ret;\n"
1253 << Indent1 << "}\n\n";
1256 /// EmitNameMethod - Emit the Name() method for a given Tool class.
1257 void EmitNameMethod (const ToolProperties& P, std::ostream& O) {
1258 O << Indent1 << "const char* Name() const {\n"
1259 << Indent2 << "return \"" << P.Name << "\";\n"
1260 << Indent1 << "}\n\n";
1263 /// EmitIsJoinMethod - Emit the IsJoin() method for a given Tool
1265 void EmitIsJoinMethod (const ToolProperties& P, std::ostream& O) {
1266 O << Indent1 << "bool IsJoin() const {\n";
1268 O << Indent2 << "return true;\n";
1270 O << Indent2 << "return false;\n";
1271 O << Indent1 << "}\n\n";
1274 /// EmitStaticMemberDefinitions - Emit static member definitions for a
1275 /// given Tool class.
1276 void EmitStaticMemberDefinitions(const ToolProperties& P, std::ostream& O) {
1277 O << "const char* " << P.Name << "::InputLanguages_[] = {";
1278 for (StrVector::const_iterator B = P.InLanguage.begin(),
1279 E = P.InLanguage.end(); B != E; ++B)
1280 O << '\"' << *B << "\", ";
1284 /// EmitToolClassDefinition - Emit a Tool class definition.
1285 void EmitToolClassDefinition (const ToolProperties& P,
1286 const GlobalOptionDescriptions& OptDescs,
1288 if (P.Name == "root")
1292 O << "class " << P.Name << " : public ";
1298 O << "{\nprivate:\n"
1299 << Indent1 << "static const char* InputLanguages_[];\n\n";
1302 EmitNameMethod(P, O);
1303 EmitInOutLanguageMethods(P, O);
1304 EmitOutputSuffixMethod(P, O);
1305 EmitIsJoinMethod(P, O);
1306 EmitGenerateActionMethods(P, OptDescs, O);
1307 EmitIsLastMethod(P, O);
1309 // Close class definition
1312 EmitStaticMemberDefinitions(P, O);
1316 /// EmitOptionDescriptions - Iterate over a list of option
1317 /// descriptions and emit registration code.
1318 void EmitOptionDescriptions (const GlobalOptionDescriptions& descs,
1321 std::vector<GlobalOptionDescription> Aliases;
1323 // Emit static cl::Option variables.
1324 for (GlobalOptionDescriptions::const_iterator B = descs.begin(),
1325 E = descs.end(); B!=E; ++B) {
1326 const GlobalOptionDescription& val = B->second;
1328 if (val.Type == OptionType::Alias) {
1329 Aliases.push_back(val);
1333 O << val.GenTypeDeclaration() << ' '
1334 << val.GenVariableName()
1335 << "(\"" << val.Name << '\"';
1337 if (val.Type == OptionType::Prefix || val.Type == OptionType::PrefixList)
1338 O << ", cl::Prefix";
1340 if (val.isRequired()) {
1342 case OptionType::PrefixList:
1343 case OptionType::ParameterList:
1344 O << ", cl::OneOrMore";
1347 O << ", cl::Required";
1351 if (!val.Help.empty())
1352 O << ", cl::desc(\"" << val.Help << "\")";
1357 // Emit the aliases (they should go after all the 'proper' options).
1358 for (std::vector<GlobalOptionDescription>::const_iterator
1359 B = Aliases.begin(), E = Aliases.end(); B != E; ++B) {
1360 const GlobalOptionDescription& val = *B;
1362 O << val.GenTypeDeclaration() << ' '
1363 << val.GenVariableName()
1364 << "(\"" << val.Name << '\"';
1366 GlobalOptionDescriptions::container_type
1367 ::const_iterator F = descs.Descriptions.find(val.Help);
1368 if (F != descs.Descriptions.end())
1369 O << ", cl::aliasopt(" << F->second.GenVariableName() << ")";
1371 throw val.Name + ": alias to an unknown option!";
1373 O << ", cl::desc(\"" << "An alias for -" + val.Help << "\"));\n";
1376 // Emit the sink option.
1378 O << "cl::list<std::string> " << SinkOptionName << "(cl::Sink);\n";
1383 /// EmitPopulateLanguageMap - Emit the PopulateLanguageMap() function.
1384 void EmitPopulateLanguageMap (const RecordKeeper& Records, std::ostream& O)
1386 // Get the relevant field out of RecordKeeper
1387 Record* LangMapRecord = Records.getDef("LanguageMap");
1389 throw std::string("Language map definition not found!");
1391 ListInit* LangsToSuffixesList = LangMapRecord->getValueAsListInit("map");
1392 if (!LangsToSuffixesList)
1393 throw std::string("Error in the language map definition!");
1396 O << "void llvmc::PopulateLanguageMap() {\n";
1398 for (unsigned i = 0; i < LangsToSuffixesList->size(); ++i) {
1399 Record* LangToSuffixes = LangsToSuffixesList->getElementAsRecord(i);
1401 const std::string& Lang = LangToSuffixes->getValueAsString("lang");
1402 const ListInit* Suffixes = LangToSuffixes->getValueAsListInit("suffixes");
1404 for (unsigned i = 0; i < Suffixes->size(); ++i)
1405 O << Indent1 << "GlobalLanguageMap[\""
1406 << InitPtrToString(Suffixes->getElement(i))
1407 << "\"] = \"" << Lang << "\";\n";
1413 /// FillInToolToLang - Fills in two tables that map tool names to
1414 /// (input, output) languages. Used by the typechecker.
1415 void FillInToolToLang (const ToolPropertiesList& TPList,
1416 StringMap<StringSet<> >& ToolToInLang,
1417 StringMap<std::string>& ToolToOutLang) {
1418 for (ToolPropertiesList::const_iterator B = TPList.begin(), E = TPList.end();
1420 const ToolProperties& P = *(*B);
1421 for (StrVector::const_iterator B = P.InLanguage.begin(),
1422 E = P.InLanguage.end(); B != E; ++B)
1423 ToolToInLang[P.Name].insert(*B);
1424 ToolToOutLang[P.Name] = P.OutLanguage;
1428 /// TypecheckGraph - Check that names for output and input languages
1429 /// on all edges do match.
1430 // TOFIX: It would be nice if this function also checked for cycles
1431 // and multiple default edges in the graph (better error
1432 // reporting). Unfortunately, it is awkward to do right now because
1433 // our intermediate representation is not sufficiently
1434 // sofisticated. Algorithms like these should be run on a real graph
1436 void TypecheckGraph (Record* CompilationGraph,
1437 const ToolPropertiesList& TPList) {
1438 StringMap<StringSet<> > ToolToInLang;
1439 StringMap<std::string> ToolToOutLang;
1441 FillInToolToLang(TPList, ToolToInLang, ToolToOutLang);
1442 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1443 StringMap<std::string>::iterator IAE = ToolToOutLang.end();
1444 StringMap<StringSet<> >::iterator IBE = ToolToInLang.end();
1446 for (unsigned i = 0; i < edges->size(); ++i) {
1447 Record* Edge = edges->getElementAsRecord(i);
1448 Record* A = Edge->getValueAsDef("a");
1449 Record* B = Edge->getValueAsDef("b");
1450 StringMap<std::string>::iterator IA = ToolToOutLang.find(A->getName());
1451 StringMap<StringSet<> >::iterator IB = ToolToInLang.find(B->getName());
1453 throw A->getName() + ": no such tool!";
1455 throw B->getName() + ": no such tool!";
1456 if (A->getName() != "root" && IB->second.count(IA->second) == 0)
1457 throw "Edge " + A->getName() + "->" + B->getName()
1458 + ": output->input language mismatch";
1459 if (B->getName() == "root")
1460 throw std::string("Edges back to the root are not allowed!");
1464 /// IncDecWeight - Helper function passed to EmitCaseConstructHandler()
1465 /// by EmitEdgeClass().
1466 void IncDecWeight (const Init* i, const char* IndentLevel,
1468 const DagInit& d = InitPtrToDag(i);
1469 const std::string& OpName = d.getOperator()->getAsString();
1471 if (OpName == "inc_weight")
1472 O << IndentLevel << Indent1 << "ret += ";
1473 else if (OpName == "dec_weight")
1474 O << IndentLevel << Indent1 << "ret -= ";
1476 throw "Unknown operator in edge properties list: " + OpName + '!';
1478 if (d.getNumArgs() > 0)
1479 O << InitPtrToInt(d.getArg(0)) << ";\n";
1485 /// EmitEdgeClass - Emit a single Edge# class.
1486 void EmitEdgeClass (unsigned N, const std::string& Target,
1487 DagInit* Case, const GlobalOptionDescriptions& OptDescs,
1490 // Class constructor.
1491 O << "class Edge" << N << ": public Edge {\n"
1493 << Indent1 << "Edge" << N << "() : Edge(\"" << Target
1496 // Function Weight().
1497 << Indent1 << "unsigned Weight(const InputLanguagesSet& InLangs) const {\n"
1498 << Indent2 << "unsigned ret = 0;\n";
1500 // Handle the 'case' construct.
1501 EmitCaseConstructHandler(Case, Indent2, IncDecWeight, false, OptDescs, O);
1503 O << Indent2 << "return ret;\n"
1504 << Indent1 << "};\n\n};\n\n";
1507 /// EmitEdgeClasses - Emit Edge* classes that represent graph edges.
1508 void EmitEdgeClasses (Record* CompilationGraph,
1509 const GlobalOptionDescriptions& OptDescs,
1511 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1513 for (unsigned i = 0; i < edges->size(); ++i) {
1514 Record* Edge = edges->getElementAsRecord(i);
1515 Record* B = Edge->getValueAsDef("b");
1516 DagInit* Weight = Edge->getValueAsDag("weight");
1518 if (isDagEmpty(Weight))
1521 EmitEdgeClass(i, B->getName(), Weight, OptDescs, O);
1525 /// EmitPopulateCompilationGraph - Emit the PopulateCompilationGraph()
1527 void EmitPopulateCompilationGraph (Record* CompilationGraph,
1530 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1533 O << "void llvmc::PopulateCompilationGraph(CompilationGraph& G) {\n"
1534 << Indent1 << "PopulateLanguageMap();\n\n";
1538 RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
1540 throw std::string("No tool definitions found!");
1542 for (RecordVector::iterator B = Tools.begin(), E = Tools.end(); B != E; ++B) {
1543 const std::string& Name = (*B)->getName();
1545 O << Indent1 << "G.insertNode(new "
1546 << Name << "());\n";
1552 for (unsigned i = 0; i < edges->size(); ++i) {
1553 Record* Edge = edges->getElementAsRecord(i);
1554 Record* A = Edge->getValueAsDef("a");
1555 Record* B = Edge->getValueAsDef("b");
1556 DagInit* Weight = Edge->getValueAsDag("weight");
1558 O << Indent1 << "G.insertEdge(\"" << A->getName() << "\", ";
1560 if (isDagEmpty(Weight))
1561 O << "new SimpleEdge(\"" << B->getName() << "\")";
1563 O << "new Edge" << i << "()";
1571 /// ExtractHookNames - Extract the hook names from all instances of
1572 /// $CALL(HookName) in the provided command line string. Helper
1573 /// function used by FillInHookNames().
1574 void ExtractHookNames(const Init* CmdLine, StrVector& HookNames) {
1576 llvm::SplitString(InitPtrToString(CmdLine), cmds);
1577 for (StrVector::const_iterator B = cmds.begin(), E = cmds.end();
1579 const std::string& cmd = *B;
1580 if (cmd.find("$CALL(") == 0) {
1581 if (cmd.size() == 6)
1582 throw std::string("$CALL invocation: empty argument list!");
1583 HookNames.push_back(std::string(cmd.begin() + 6,
1584 cmd.begin() + cmd.find(")")));
1589 /// ExtractHookNamesFromCaseConstruct - Extract hook names from the
1590 /// 'case' expression, handle nesting. Helper function used by
1591 /// FillInHookNames().
1592 void ExtractHookNamesFromCaseConstruct(Init* Case, StrVector& HookNames) {
1593 const DagInit& d = InitPtrToDag(Case);
1595 for (DagInit::const_arg_iterator B = d.arg_begin(), E = d.arg_end();
1598 if (even && dynamic_cast<DagInit*>(arg)
1599 && static_cast<DagInit*>(arg)->getOperator()->getAsString() == "case")
1600 ExtractHookNamesFromCaseConstruct(arg, HookNames);
1602 ExtractHookNames(arg, HookNames);
1607 /// FillInHookNames - Actually extract the hook names from all command
1608 /// line strings. Helper function used by EmitHookDeclarations().
1609 void FillInHookNames(const ToolPropertiesList& TPList,
1610 StrVector& HookNames) {
1611 // For all command lines:
1612 for (ToolPropertiesList::const_iterator B = TPList.begin(),
1613 E = TPList.end(); B != E; ++B) {
1614 const ToolProperties& P = *(*B);
1617 if (dynamic_cast<StringInit*>(P.CmdLine))
1618 // This is a string.
1619 ExtractHookNames(P.CmdLine, HookNames);
1621 // This is a 'case' construct.
1622 ExtractHookNamesFromCaseConstruct(P.CmdLine, HookNames);
1626 /// EmitHookDeclarations - Parse CmdLine fields of all the tool
1627 /// property records and emit hook function declaration for each
1628 /// instance of $CALL(HookName).
1629 void EmitHookDeclarations(const ToolPropertiesList& ToolProps,
1631 StrVector HookNames;
1632 FillInHookNames(ToolProps, HookNames);
1633 if (HookNames.empty())
1635 std::sort(HookNames.begin(), HookNames.end());
1636 StrVector::const_iterator E = std::unique(HookNames.begin(), HookNames.end());
1638 O << "namespace hooks {\n";
1639 for (StrVector::const_iterator B = HookNames.begin(); B != E; ++B)
1640 O << Indent1 << "std::string " << *B << "();\n";
1645 // End of anonymous namespace
1648 /// run - The back-end entry point.
1649 void LLVMCConfigurationEmitter::run (std::ostream &O) {
1652 // Emit file header.
1653 EmitSourceFileHeader("LLVMC Configuration Library", O);
1655 // Get a list of all defined Tools.
1656 RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
1658 throw std::string("No tool definitions found!");
1660 // Gather information from the Tool description dags.
1661 ToolPropertiesList tool_props;
1662 GlobalOptionDescriptions opt_descs;
1663 CollectToolProperties(Tools.begin(), Tools.end(), tool_props, opt_descs);
1665 RecordVector OptionLists = Records.getAllDerivedDefinitions("OptionList");
1666 CollectPropertiesFromOptionList(OptionLists.begin(), OptionLists.end(),
1669 // Emit global option registration code.
1670 EmitOptionDescriptions(opt_descs, O);
1672 // Emit hook declarations.
1673 EmitHookDeclarations(tool_props, O);
1675 // Emit PopulateLanguageMap() function
1676 // (a language map maps from file extensions to language names).
1677 EmitPopulateLanguageMap(Records, O);
1679 // Emit Tool classes.
1680 for (ToolPropertiesList::const_iterator B = tool_props.begin(),
1681 E = tool_props.end(); B!=E; ++B)
1682 EmitToolClassDefinition(*(*B), opt_descs, O);
1684 Record* CompilationGraphRecord = Records.getDef("CompilationGraph");
1685 if (!CompilationGraphRecord)
1686 throw std::string("Compilation graph description not found!");
1688 // Typecheck the compilation graph.
1689 TypecheckGraph(CompilationGraphRecord, tool_props);
1691 // Emit Edge# classes.
1692 EmitEdgeClasses(CompilationGraphRecord, opt_descs, O);
1694 // Emit PopulateCompilationGraph() function.
1695 EmitPopulateCompilationGraph(CompilationGraphRecord, O);
1698 } catch (std::exception& Error) {
1699 throw Error.what() + std::string(" - usually this means a syntax error.");