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"
33 //===----------------------------------------------------------------------===//
36 typedef std::vector<Record*> RecordVector;
37 typedef std::vector<std::string> StrVector;
39 //===----------------------------------------------------------------------===//
42 // Indentation strings.
43 const char * Indent1 = " ";
44 const char * Indent2 = " ";
45 const char * Indent3 = " ";
46 const char * Indent4 = " ";
48 // Default help string.
49 const char * DefaultHelpString = "NO HELP MESSAGE PROVIDED";
51 // Name for the "sink" option.
52 const char * SinkOptionName = "AutoGeneratedSinkOption";
54 //===----------------------------------------------------------------------===//
57 int InitPtrToInt(const Init* ptr) {
58 const IntInit& val = dynamic_cast<const IntInit&>(*ptr);
59 return val.getValue();
62 const std::string& InitPtrToString(const Init* ptr) {
63 const StringInit& val = dynamic_cast<const StringInit&>(*ptr);
64 return val.getValue();
67 const ListInit& InitPtrToList(const Init* ptr) {
68 const ListInit& val = dynamic_cast<const ListInit&>(*ptr);
72 const DagInit& InitPtrToDag(const Init* ptr) {
73 const DagInit& val = dynamic_cast<const DagInit&>(*ptr);
77 // checkNumberOfArguments - Ensure that the number of args in d is
78 // less than or equal to min_arguments, otherwise throw an exception.
79 void checkNumberOfArguments (const DagInit* d, unsigned min_arguments) {
80 if (d->getNumArgs() < min_arguments)
81 throw "Property " + d->getOperator()->getAsString()
82 + " has too few arguments!";
85 // isDagEmpty - is this DAG marked with an empty marker?
86 bool isDagEmpty (const DagInit* d) {
87 return d->getOperator()->getAsString() == "empty";
90 //===----------------------------------------------------------------------===//
91 /// Back-end specific code
93 // A command-line option can have one of the following types:
95 // Switch - a simple switch w/o arguments, e.g. -O2
97 // Parameter - an option that takes one(and only one) argument, e.g. -o file,
100 // ParameterList - same as Parameter, but more than one occurence
101 // of the option is allowed, e.g. -lm -lpthread
103 // Prefix - argument is everything after the prefix,
104 // e.g. -Wa,-foo,-bar, -DNAME=VALUE
106 // PrefixList - same as Prefix, but more than one option occurence is
109 namespace OptionType {
110 enum OptionType { Switch, Parameter, ParameterList, Prefix, PrefixList};
113 bool IsListOptionType (OptionType::OptionType t) {
114 return (t == OptionType::ParameterList || t == OptionType::PrefixList);
117 // Code duplication here is necessary because one option can affect
118 // several tools and those tools may have different actions associated
119 // with this option. GlobalOptionDescriptions are used to generate
120 // the option registration code, while ToolOptionDescriptions are used
121 // to generate tool-specific code.
123 /// OptionDescription - Base class for option descriptions.
124 struct OptionDescription {
125 OptionType::OptionType Type;
128 OptionDescription(OptionType::OptionType t = OptionType::Switch,
129 const std::string& n = "")
133 const char* GenTypeDeclaration() const {
135 case OptionType::PrefixList:
136 case OptionType::ParameterList:
137 return "cl::list<std::string>";
138 case OptionType::Switch:
139 return "cl::opt<bool>";
140 case OptionType::Parameter:
141 case OptionType::Prefix:
143 return "cl::opt<std::string>";
147 // Escape commas and other symbols not allowed in the C++ variable
148 // names. Makes it possible to use options with names like "Wa,"
149 // (useful for prefix options).
150 std::string EscapeVariableName(const std::string& Var) const {
152 for (unsigned i = 0; i != Var.size(); ++i) {
157 ret.push_back(Var[i]);
163 std::string GenVariableName() const {
164 const std::string& EscapedName = EscapeVariableName(Name);
166 case OptionType::Switch:
167 return "AutoGeneratedSwitch" + EscapedName;
168 case OptionType::Prefix:
169 return "AutoGeneratedPrefix" + EscapedName;
170 case OptionType::PrefixList:
171 return "AutoGeneratedPrefixList" + EscapedName;
172 case OptionType::Parameter:
173 return "AutoGeneratedParameter" + EscapedName;
174 case OptionType::ParameterList:
176 return "AutoGeneratedParameterList" + EscapedName;
182 // Global option description.
184 namespace GlobalOptionDescriptionFlags {
185 enum GlobalOptionDescriptionFlags { Required = 0x1 };
188 struct GlobalOptionDescription : public OptionDescription {
192 // We need to provide a default constructor because
193 // StringMap can only store DefaultConstructible objects.
194 GlobalOptionDescription() : OptionDescription(), Flags(0)
197 GlobalOptionDescription (OptionType::OptionType t, const std::string& n)
198 : OptionDescription(t, n), Help(DefaultHelpString), Flags(0)
201 bool isRequired() const {
202 return Flags & GlobalOptionDescriptionFlags::Required;
205 Flags |= GlobalOptionDescriptionFlags::Required;
208 /// Merge - Merge two option descriptions.
209 void Merge (const GlobalOptionDescription& other)
211 if (other.Type != Type)
212 throw "Conflicting definitions for the option " + Name + "!";
214 if (Help == DefaultHelpString)
216 else if (other.Help != DefaultHelpString) {
217 llvm::cerr << "Warning: more than one help string defined for option "
221 Flags |= other.Flags;
225 /// GlobalOptionDescriptions - A GlobalOptionDescription array
226 /// together with some flags affecting generation of option
228 struct GlobalOptionDescriptions {
229 typedef StringMap<GlobalOptionDescription> container_type;
230 typedef container_type::const_iterator const_iterator;
232 /// Descriptions - A list of GlobalOptionDescriptions.
233 container_type Descriptions;
234 /// HasSink - Should the emitter generate a "cl::sink" option?
237 const GlobalOptionDescription& FindOption(const std::string& OptName) const {
238 const_iterator I = Descriptions.find(OptName);
239 if (I != Descriptions.end())
242 throw OptName + ": no such option!";
245 // Support for STL-style iteration
246 const_iterator begin() const { return Descriptions.begin(); }
247 const_iterator end() const { return Descriptions.end(); }
251 // Tool-local option description.
253 // Properties without arguments are implemented as flags.
254 namespace ToolOptionDescriptionFlags {
255 enum ToolOptionDescriptionFlags { StopCompilation = 0x1,
256 Forward = 0x2, UnpackValues = 0x4};
258 namespace OptionPropertyType {
259 enum OptionPropertyType { AppendCmd, OutputSuffix };
262 typedef std::pair<OptionPropertyType::OptionPropertyType, std::string>
264 typedef SmallVector<OptionProperty, 4> OptionPropertyList;
266 struct ToolOptionDescription : public OptionDescription {
268 OptionPropertyList Props;
270 // StringMap can only store DefaultConstructible objects
271 ToolOptionDescription() : OptionDescription(), Flags(0) {}
273 ToolOptionDescription (OptionType::OptionType t, const std::string& n)
274 : OptionDescription(t, n)
277 // Various boolean properties
278 bool isStopCompilation() const {
279 return Flags & ToolOptionDescriptionFlags::StopCompilation;
281 void setStopCompilation() {
282 Flags |= ToolOptionDescriptionFlags::StopCompilation;
285 bool isForward() const {
286 return Flags & ToolOptionDescriptionFlags::Forward;
289 Flags |= ToolOptionDescriptionFlags::Forward;
292 bool isUnpackValues() const {
293 return Flags & ToolOptionDescriptionFlags::UnpackValues;
295 void setUnpackValues() {
296 Flags |= ToolOptionDescriptionFlags::UnpackValues;
299 void AddProperty (OptionPropertyType::OptionPropertyType t,
300 const std::string& val)
302 Props.push_back(std::make_pair(t, val));
306 typedef StringMap<ToolOptionDescription> ToolOptionDescriptions;
308 // Tool information record
310 namespace ToolFlags {
311 enum ToolFlags { Join = 0x1, Sink = 0x2 };
314 struct ToolProperties : public RefCountedBase<ToolProperties> {
317 StrVector InLanguage;
318 std::string OutLanguage;
319 std::string OutputSuffix;
321 ToolOptionDescriptions OptDescs;
323 // Various boolean properties
324 void setSink() { Flags |= ToolFlags::Sink; }
325 bool isSink() const { return Flags & ToolFlags::Sink; }
326 void setJoin() { Flags |= ToolFlags::Join; }
327 bool isJoin() const { return Flags & ToolFlags::Join; }
329 // Default ctor here is needed because StringMap can only store
330 // DefaultConstructible objects
331 ToolProperties() : Flags(0) {}
332 ToolProperties (const std::string& n) : Name(n), Flags(0) {}
336 /// ToolPropertiesList - A list of Tool information records
337 /// IntrusiveRefCntPtrs are used here because StringMap has no copy
338 /// constructor (and we want to avoid copying ToolProperties anyway).
339 typedef std::vector<IntrusiveRefCntPtr<ToolProperties> > ToolPropertiesList;
342 /// CollectProperties - Function object for iterating over a list of
343 /// tool property records.
344 class CollectProperties {
347 /// Implementation details
349 /// PropertyHandler - a function that extracts information
350 /// about a given tool property from its DAG representation
351 typedef void (CollectProperties::*PropertyHandler)(const DagInit*);
353 /// PropertyHandlerMap - A map from property names to property
355 typedef StringMap<PropertyHandler> PropertyHandlerMap;
357 /// OptionPropertyHandler - a function that extracts information
358 /// about a given option property from its DAG representation.
359 typedef void (CollectProperties::* OptionPropertyHandler)
360 (const DagInit*, GlobalOptionDescription &);
362 /// OptionPropertyHandlerMap - A map from option property names to
363 /// option property handlers
364 typedef StringMap<OptionPropertyHandler> OptionPropertyHandlerMap;
366 // Static maps from strings to CollectProperties methods("handlers")
367 static PropertyHandlerMap propertyHandlers_;
368 static OptionPropertyHandlerMap optionPropertyHandlers_;
369 static bool staticMembersInitialized_;
372 /// This is where the information is stored
374 /// toolProps_ - Properties of the current Tool.
375 ToolProperties& toolProps_;
376 /// optDescs_ - OptionDescriptions table (used to register options
378 GlobalOptionDescriptions& optDescs_;
382 explicit CollectProperties (ToolProperties& p, GlobalOptionDescriptions& d)
383 : toolProps_(p), optDescs_(d)
385 if (!staticMembersInitialized_) {
386 // Init tool property handlers
387 propertyHandlers_["cmd_line"] = &CollectProperties::onCmdLine;
388 propertyHandlers_["in_language"] = &CollectProperties::onInLanguage;
389 propertyHandlers_["join"] = &CollectProperties::onJoin;
390 propertyHandlers_["out_language"] = &CollectProperties::onOutLanguage;
391 propertyHandlers_["output_suffix"] = &CollectProperties::onOutputSuffix;
392 propertyHandlers_["parameter_option"]
393 = &CollectProperties::onParameter;
394 propertyHandlers_["parameter_list_option"] =
395 &CollectProperties::onParameterList;
396 propertyHandlers_["prefix_option"] = &CollectProperties::onPrefix;
397 propertyHandlers_["prefix_list_option"] =
398 &CollectProperties::onPrefixList;
399 propertyHandlers_["sink"] = &CollectProperties::onSink;
400 propertyHandlers_["switch_option"] = &CollectProperties::onSwitch;
402 // Init option property handlers
403 optionPropertyHandlers_["append_cmd"] = &CollectProperties::onAppendCmd;
404 optionPropertyHandlers_["forward"] = &CollectProperties::onForward;
405 optionPropertyHandlers_["help"] = &CollectProperties::onHelp;
406 optionPropertyHandlers_["output_suffix"] =
407 &CollectProperties::onOutputSuffixOptionProp;
408 optionPropertyHandlers_["required"] = &CollectProperties::onRequired;
409 optionPropertyHandlers_["stop_compilation"] =
410 &CollectProperties::onStopCompilation;
411 optionPropertyHandlers_["unpack_values"] =
412 &CollectProperties::onUnpackValues;
414 staticMembersInitialized_ = true;
418 /// operator() - Gets called for every tool property; Just forwards
419 /// to the corresponding property handler.
420 void operator() (Init* i) {
421 const DagInit& d = InitPtrToDag(i);
422 const std::string& property_name = d.getOperator()->getAsString();
423 PropertyHandlerMap::iterator method
424 = propertyHandlers_.find(property_name);
426 if (method != propertyHandlers_.end()) {
427 PropertyHandler h = method->second;
431 throw "Unknown tool property: " + property_name + "!";
437 /// Property handlers --
438 /// Functions that extract information about tool properties from
439 /// DAG representation.
441 void onCmdLine (const DagInit* d) {
442 checkNumberOfArguments(d, 1);
443 toolProps_.CmdLine = d->getArg(0);
446 void onInLanguage (const DagInit* d) {
447 checkNumberOfArguments(d, 1);
448 Init* arg = d->getArg(0);
450 // Find out the argument's type.
451 if (typeid(*arg) == typeid(StringInit)) {
453 toolProps_.InLanguage.push_back(InitPtrToString(arg));
457 const ListInit& lst = InitPtrToList(arg);
458 StrVector& out = toolProps_.InLanguage;
460 // Copy strings to the output vector.
461 for (ListInit::const_iterator B = lst.begin(), E = lst.end();
463 out.push_back(InitPtrToString(*B));
466 // Remove duplicates.
467 std::sort(out.begin(), out.end());
468 StrVector::iterator newE = std::unique(out.begin(), out.end());
469 out.erase(newE, out.end());
473 void onJoin (const DagInit* d) {
474 checkNumberOfArguments(d, 0);
475 toolProps_.setJoin();
478 void onOutLanguage (const DagInit* d) {
479 checkNumberOfArguments(d, 1);
480 toolProps_.OutLanguage = InitPtrToString(d->getArg(0));
483 void onOutputSuffix (const DagInit* d) {
484 checkNumberOfArguments(d, 1);
485 toolProps_.OutputSuffix = InitPtrToString(d->getArg(0));
488 void onSink (const DagInit* d) {
489 checkNumberOfArguments(d, 0);
490 optDescs_.HasSink = true;
491 toolProps_.setSink();
494 void onSwitch (const DagInit* d) {
495 addOption(d, OptionType::Switch);
498 void onParameter (const DagInit* d) {
499 addOption(d, OptionType::Parameter);
502 void onParameterList (const DagInit* d) {
503 addOption(d, OptionType::ParameterList);
506 void onPrefix (const DagInit* d) {
507 addOption(d, OptionType::Prefix);
510 void onPrefixList (const DagInit* d) {
511 addOption(d, OptionType::PrefixList);
514 /// Option property handlers --
515 /// Methods that handle properties that are common for all types of
516 /// options (like append_cmd, stop_compilation)
518 void onAppendCmd (const DagInit* d, GlobalOptionDescription& o) {
519 checkNumberOfArguments(d, 1);
520 const std::string& cmd = InitPtrToString(d->getArg(0));
522 toolProps_.OptDescs[o.Name].AddProperty(OptionPropertyType::AppendCmd, cmd);
525 void onOutputSuffixOptionProp (const DagInit* d, GlobalOptionDescription& o) {
526 checkNumberOfArguments(d, 1);
527 const std::string& suf = InitPtrToString(d->getArg(0));
529 if (toolProps_.OptDescs[o.Name].Type != OptionType::Switch)
530 throw "Option " + o.Name
531 + " can't have 'output_suffix' property since it isn't a switch!";
533 toolProps_.OptDescs[o.Name].AddProperty
534 (OptionPropertyType::OutputSuffix, suf);
537 void onForward (const DagInit* d, GlobalOptionDescription& o) {
538 checkNumberOfArguments(d, 0);
539 toolProps_.OptDescs[o.Name].setForward();
542 void onHelp (const DagInit* d, GlobalOptionDescription& o) {
543 checkNumberOfArguments(d, 1);
544 const std::string& help_message = InitPtrToString(d->getArg(0));
546 o.Help = help_message;
549 void onRequired (const DagInit* d, GlobalOptionDescription& o) {
550 checkNumberOfArguments(d, 0);
554 void onStopCompilation (const DagInit* d, GlobalOptionDescription& o) {
555 checkNumberOfArguments(d, 0);
556 if (o.Type != OptionType::Switch)
557 throw std::string("Only options of type Switch can stop compilation!");
558 toolProps_.OptDescs[o.Name].setStopCompilation();
561 void onUnpackValues (const DagInit* d, GlobalOptionDescription& o) {
562 checkNumberOfArguments(d, 0);
563 toolProps_.OptDescs[o.Name].setUnpackValues();
568 // Add an option of type t
569 void addOption (const DagInit* d, OptionType::OptionType t) {
570 checkNumberOfArguments(d, 2);
571 const std::string& name = InitPtrToString(d->getArg(0));
573 GlobalOptionDescription o(t, name);
574 toolProps_.OptDescs[name].Type = t;
575 toolProps_.OptDescs[name].Name = name;
576 processOptionProperties(d, o);
577 insertDescription(o);
580 // Insert new GlobalOptionDescription into GlobalOptionDescriptions list
581 void insertDescription (const GlobalOptionDescription& o)
583 if (optDescs_.Descriptions.count(o.Name)) {
584 GlobalOptionDescription& D = optDescs_.Descriptions[o.Name];
588 optDescs_.Descriptions[o.Name] = o;
592 /// processOptionProperties - Go through the list of option
593 /// properties and call a corresponding handler for each.
596 /// name - option name
597 /// d - option property list
598 void processOptionProperties (const DagInit* d, GlobalOptionDescription& o) {
599 // First argument is option name
600 checkNumberOfArguments(d, 2);
602 for (unsigned B = 1, E = d->getNumArgs(); B!=E; ++B) {
603 const DagInit& option_property
604 = InitPtrToDag(d->getArg(B));
605 const std::string& option_property_name
606 = option_property.getOperator()->getAsString();
607 OptionPropertyHandlerMap::iterator method
608 = optionPropertyHandlers_.find(option_property_name);
610 if (method != optionPropertyHandlers_.end()) {
611 OptionPropertyHandler h = method->second;
612 (this->*h)(&option_property, o);
615 throw "Unknown option property: " + option_property_name + "!";
621 // Static members of CollectProperties
622 CollectProperties::PropertyHandlerMap
623 CollectProperties::propertyHandlers_;
625 CollectProperties::OptionPropertyHandlerMap
626 CollectProperties::optionPropertyHandlers_;
628 bool CollectProperties::staticMembersInitialized_ = false;
631 /// CollectToolProperties - Gather information from the parsed
632 /// TableGen data (basically a wrapper for the CollectProperties
633 /// function object).
634 void CollectToolProperties (RecordVector::const_iterator B,
635 RecordVector::const_iterator E,
636 ToolPropertiesList& TPList,
637 GlobalOptionDescriptions& OptDescs)
639 // Iterate over a properties list of every Tool definition
641 RecordVector::value_type T = *B;
642 ListInit* PropList = T->getValueAsListInit("properties");
644 IntrusiveRefCntPtr<ToolProperties>
645 ToolProps(new ToolProperties(T->getName()));
647 std::for_each(PropList->begin(), PropList->end(),
648 CollectProperties(*ToolProps, OptDescs));
649 TPList.push_back(ToolProps);
653 /// EmitCaseTest1Arg - Helper function used by
654 /// EmitCaseConstructHandler.
655 bool EmitCaseTest1Arg(const std::string& TestName,
657 const GlobalOptionDescriptions& OptDescs,
659 checkNumberOfArguments(&d, 1);
660 const std::string& OptName = InitPtrToString(d.getArg(0));
661 if (TestName == "switch_on") {
662 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
663 if (OptDesc.Type != OptionType::Switch)
664 throw OptName + ": incorrect option type!";
665 O << OptDesc.GenVariableName();
667 } else if (TestName == "input_languages_contain") {
668 O << "InLangs.count(\"" << OptName << "\") != 0";
670 } else if (TestName == "in_language") {
671 // Works only for cmd_line!
672 O << "GetLanguage(inFile) == \"" << OptName << '\"';
674 } else if (TestName == "not_empty") {
675 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
676 if (OptDesc.Type == OptionType::Switch)
677 throw OptName + ": incorrect option type!";
678 O << '!' << OptDesc.GenVariableName() << ".empty()";
685 /// EmitCaseTest2Args - Helper function used by
686 /// EmitCaseConstructHandler.
687 bool EmitCaseTest2Args(const std::string& TestName,
689 const char* IndentLevel,
690 const GlobalOptionDescriptions& OptDescs,
692 checkNumberOfArguments(&d, 2);
693 const std::string& OptName = InitPtrToString(d.getArg(0));
694 const std::string& OptArg = InitPtrToString(d.getArg(1));
695 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
697 if (TestName == "parameter_equals") {
698 if (OptDesc.Type != OptionType::Parameter
699 && OptDesc.Type != OptionType::Prefix)
700 throw OptName + ": incorrect option type!";
701 O << OptDesc.GenVariableName() << " == \"" << OptArg << "\"";
704 else if (TestName == "element_in_list") {
705 if (OptDesc.Type != OptionType::ParameterList
706 && OptDesc.Type != OptionType::PrefixList)
707 throw OptName + ": incorrect option type!";
708 const std::string& VarName = OptDesc.GenVariableName();
709 O << "std::find(" << VarName << ".begin(),\n"
710 << IndentLevel << Indent1 << VarName << ".end(), \""
711 << OptArg << "\") != " << VarName << ".end()";
718 // Forward declaration.
719 // EmitLogicalOperationTest and EmitCaseTest are mutually recursive.
720 void EmitCaseTest(const DagInit& d, const char* IndentLevel,
721 const GlobalOptionDescriptions& OptDescs,
724 /// EmitLogicalOperationTest - Helper function used by
725 /// EmitCaseConstructHandler.
726 void EmitLogicalOperationTest(const DagInit& d, const char* LogicOp,
727 const char* IndentLevel,
728 const GlobalOptionDescriptions& OptDescs,
731 for (unsigned j = 0, NumArgs = d.getNumArgs(); j < NumArgs; ++j) {
732 const DagInit& InnerTest = InitPtrToDag(d.getArg(j));
733 EmitCaseTest(InnerTest, IndentLevel, OptDescs, O);
734 if (j != NumArgs - 1)
735 O << ")\n" << IndentLevel << Indent1 << ' ' << LogicOp << " (";
741 /// EmitCaseTest - Helper function used by EmitCaseConstructHandler.
742 void EmitCaseTest(const DagInit& d, const char* IndentLevel,
743 const GlobalOptionDescriptions& OptDescs,
745 const std::string& TestName = d.getOperator()->getAsString();
747 if (TestName == "and")
748 EmitLogicalOperationTest(d, "&&", IndentLevel, OptDescs, O);
749 else if (TestName == "or")
750 EmitLogicalOperationTest(d, "||", IndentLevel, OptDescs, O);
751 else if (EmitCaseTest1Arg(TestName, d, OptDescs, O))
753 else if (EmitCaseTest2Args(TestName, d, IndentLevel, OptDescs, O))
756 throw TestName + ": unknown edge property!";
759 // Emit code that handles the 'case' construct.
760 // Takes a function object that should emit code for every case clause.
761 // Callback's type is
762 // void F(Init* Statement, const char* IndentLevel, std::ostream& O).
763 template <typename F>
764 void EmitCaseConstructHandler(const DagInit* d, const char* IndentLevel,
765 const F& Callback, bool DefaultRequired,
766 const GlobalOptionDescriptions& OptDescs,
768 assert(d->getOperator()->getAsString() == "case");
770 bool DefaultProvided = false;
771 unsigned numArgs = d->getNumArgs();
772 if (d->getNumArgs() < 2)
773 throw "There should be at least one clause in the 'case' expression:\n"
776 for (unsigned i = 0; i != numArgs; ++i) {
777 const DagInit& Test = InitPtrToDag(d->getArg(i));
780 if (Test.getOperator()->getAsString() == "default") {
781 DefaultProvided = true;
783 throw std::string("The 'default' clause should be the last in the"
784 "'case' construct!");
785 O << IndentLevel << "else {\n";
788 O << IndentLevel << "if (";
789 EmitCaseTest(Test, IndentLevel, OptDescs, O);
793 // Emit the corresponding statement.
796 throw "Case construct handler: no corresponding action "
797 "found for the test " + Test.getAsString() + '!';
799 Callback(d->getArg(i), IndentLevel, O);
800 O << IndentLevel << "}\n";
803 if (DefaultRequired && !DefaultProvided)
804 throw "Case expression: the 'default' clause is required in this case:\n"
808 /// EmitForwardOptionPropertyHandlingCode - Helper function used to
809 /// implement EmitOptionPropertyHandlingCode(). Emits code for
810 /// handling the (forward) option property.
811 void EmitForwardOptionPropertyHandlingCode (const ToolOptionDescription& D,
814 case OptionType::Switch:
815 O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
817 case OptionType::Parameter:
818 O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
819 O << Indent3 << "vec.push_back(" << D.GenVariableName() << ");\n";
821 case OptionType::Prefix:
822 O << Indent3 << "vec.push_back(\"-" << D.Name << "\" + "
823 << D.GenVariableName() << ");\n";
825 case OptionType::PrefixList:
826 O << Indent3 << "for (" << D.GenTypeDeclaration()
827 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
828 << Indent3 << "E = " << D.GenVariableName() << ".end(); B != E; ++B)\n"
829 << Indent4 << "vec.push_back(\"-" << D.Name << "\" + "
832 case OptionType::ParameterList:
833 O << Indent3 << "for (" << D.GenTypeDeclaration()
834 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
835 << Indent3 << "E = " << D.GenVariableName()
836 << ".end() ; B != E; ++B) {\n"
837 << Indent4 << "vec.push_back(\"-" << D.Name << "\");\n"
838 << Indent4 << "vec.push_back(*B);\n"
844 // ToolOptionHasInterestingProperties - A helper function used by
845 // EmitOptionPropertyHandlingCode() that tells us whether we should
846 // emit any property handling code at all.
847 bool ToolOptionHasInterestingProperties(const ToolOptionDescription& D) {
849 for (OptionPropertyList::const_iterator B = D.Props.begin(),
850 E = D.Props.end(); B != E; ++B) {
851 const OptionProperty& OptProp = *B;
852 if (OptProp.first == OptionPropertyType::AppendCmd)
855 if (D.isForward() || D.isUnpackValues())
860 /// EmitOptionPropertyHandlingCode - Helper function used by
861 /// EmitGenerateActionMethod(). Emits code that handles option
863 void EmitOptionPropertyHandlingCode (const ToolOptionDescription& D,
866 if (!ToolOptionHasInterestingProperties(D))
868 // Start of the if-clause.
869 O << Indent2 << "if (";
870 if (D.Type == OptionType::Switch)
871 O << D.GenVariableName();
873 O << '!' << D.GenVariableName() << ".empty()";
877 // Handle option properties that take an argument.
878 for (OptionPropertyList::const_iterator B = D.Props.begin(),
879 E = D.Props.end(); B!=E; ++B) {
880 const OptionProperty& val = *B;
883 // (append_cmd cmd) property
884 case OptionPropertyType::AppendCmd:
885 O << Indent3 << "vec.push_back(\"" << val.second << "\");\n";
887 // Other properties with argument
895 // (forward) property
897 EmitForwardOptionPropertyHandlingCode(D, O);
899 // (unpack_values) property
900 if (D.isUnpackValues()) {
901 if (IsListOptionType(D.Type)) {
902 O << Indent3 << "for (" << D.GenTypeDeclaration()
903 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
904 << Indent3 << "E = " << D.GenVariableName()
905 << ".end(); B != E; ++B)\n"
906 << Indent4 << "llvm::SplitString(*B, vec, \",\");\n";
908 else if (D.Type == OptionType::Prefix || D.Type == OptionType::Parameter){
909 O << Indent3 << "llvm::SplitString("
910 << D.GenVariableName() << ", vec, \",\");\n";
913 throw std::string("Switches can't have unpack_values property!");
917 // End of the if-clause.
918 O << Indent2 << "}\n";
921 /// SubstituteSpecialCommands - Perform string substitution for $CALL
922 /// and $ENV. Helper function used by EmitCmdLineVecFill().
923 std::string SubstituteSpecialCommands(const std::string& cmd) {
924 size_t cparen = cmd.find(")");
927 if (cmd.find("$CALL(") == 0) {
929 throw std::string("$CALL invocation: empty argument list!");
932 ret += std::string(cmd.begin() + 6, cmd.begin() + cparen);
935 else if (cmd.find("$ENV(") == 0) {
937 throw std::string("$ENV invocation: empty argument list!");
939 ret += "std::getenv(\"";
940 ret += std::string(cmd.begin() + 5, cmd.begin() + cparen);
944 throw "Unknown special command: " + cmd;
947 if (cmd.begin() + cparen + 1 != cmd.end()) {
948 ret += " + std::string(\"";
949 ret += (cmd.c_str() + cparen + 1);
956 /// EmitCmdLineVecFill - Emit code that fills in the command line
957 /// vector. Helper function used by EmitGenerateActionMethod().
958 void EmitCmdLineVecFill(const Init* CmdLine, const std::string& ToolName,
959 bool Version, const char* IndentLevel,
962 SplitString(InitPtrToString(CmdLine), StrVec);
964 throw "Tool " + ToolName + " has empty command line!";
966 StrVector::const_iterator I = StrVec.begin();
968 for (StrVector::const_iterator E = StrVec.end(); I != E; ++I) {
969 const std::string& cmd = *I;
971 if (cmd.at(0) == '$') {
972 if (cmd == "$INFILE") {
974 O << "for (PathVector::const_iterator B = inFiles.begin()"
975 << ", E = inFiles.end();\n"
976 << IndentLevel << "B != E; ++B)\n"
977 << IndentLevel << Indent1 << "vec.push_back(B->toString());\n";
979 O << "vec.push_back(inFile.toString());\n";
981 else if (cmd == "$OUTFILE") {
982 O << "vec.push_back(outFile.toString());\n";
985 O << "vec.push_back(" << SubstituteSpecialCommands(cmd);
990 O << "vec.push_back(\"" << cmd << "\");\n";
993 O << IndentLevel << "ret = Action("
994 << ((StrVec[0][0] == '$') ? SubstituteSpecialCommands(StrVec[0])
995 : "\"" + StrVec[0] + "\"")
999 /// EmitCmdLineVecFillCallback - A function object wrapper around
1000 /// EmitCmdLineVecFill(). Used by EmitGenerateActionMethod() as an
1001 /// argument to EmitCaseConstructHandler().
1002 class EmitCmdLineVecFillCallback {
1004 const std::string& ToolName;
1006 EmitCmdLineVecFillCallback(bool Ver, const std::string& TN)
1007 : Version(Ver), ToolName(TN) {}
1009 void operator()(const Init* Statement, const char* IndentLevel,
1010 std::ostream& O) const
1012 EmitCmdLineVecFill(Statement, ToolName, Version,
1013 (std::string(IndentLevel) + Indent1).c_str(), O);
1017 // EmitGenerateActionMethod - Emit one of two versions of the
1018 // Tool::GenerateAction() method.
1019 void EmitGenerateActionMethod (const ToolProperties& P,
1020 const GlobalOptionDescriptions& OptDescs,
1021 bool Version, std::ostream& O) {
1023 O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n";
1025 O << Indent1 << "Action GenerateAction(const sys::Path& inFile,\n";
1027 O << Indent2 << "const sys::Path& outFile,\n"
1028 << Indent2 << "const InputLanguagesSet& InLangs) const\n"
1030 << Indent2 << "Action ret;\n"
1031 << Indent2 << "std::vector<std::string> vec;\n";
1033 // cmd_line is either a string or a 'case' construct.
1034 if (typeid(*P.CmdLine) == typeid(StringInit))
1035 EmitCmdLineVecFill(P.CmdLine, P.Name, Version, Indent2, O);
1037 EmitCaseConstructHandler(&InitPtrToDag(P.CmdLine), Indent2,
1038 EmitCmdLineVecFillCallback(Version, P.Name),
1039 false, OptDescs, O);
1041 // For every understood option, emit handling code.
1042 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1043 E = P.OptDescs.end(); B != E; ++B) {
1044 const ToolOptionDescription& val = B->second;
1045 EmitOptionPropertyHandlingCode(val, O);
1048 // Handle the Sink property.
1050 O << Indent2 << "if (!" << SinkOptionName << ".empty()) {\n"
1051 << Indent3 << "vec.insert(vec.end(), "
1052 << SinkOptionName << ".begin(), " << SinkOptionName << ".end());\n"
1053 << Indent2 << "}\n";
1056 O << Indent2 << "return ret;\n"
1057 << Indent1 << "}\n\n";
1060 /// EmitGenerateActionMethods - Emit two GenerateAction() methods for
1061 /// a given Tool class.
1062 void EmitGenerateActionMethods (const ToolProperties& P,
1063 const GlobalOptionDescriptions& OptDescs,
1066 O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n"
1067 << Indent2 << "const llvm::sys::Path& outFile,\n"
1068 << Indent2 << "const InputLanguagesSet& InLangs) const\n"
1070 << Indent2 << "throw std::runtime_error(\"" << P.Name
1071 << " is not a Join tool!\");\n"
1072 << Indent1 << "}\n\n";
1074 EmitGenerateActionMethod(P, OptDescs, true, O);
1076 EmitGenerateActionMethod(P, OptDescs, false, O);
1079 /// EmitIsLastMethod - Emit the IsLast() method for a given Tool
1081 void EmitIsLastMethod (const ToolProperties& P, std::ostream& O) {
1082 O << Indent1 << "bool IsLast() const {\n"
1083 << Indent2 << "bool last = false;\n";
1085 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1086 E = P.OptDescs.end(); B != E; ++B) {
1087 const ToolOptionDescription& val = B->second;
1089 if (val.isStopCompilation())
1091 << "if (" << val.GenVariableName()
1092 << ")\n" << Indent3 << "last = true;\n";
1095 O << Indent2 << "return last;\n"
1096 << Indent1 << "}\n\n";
1099 /// EmitInOutLanguageMethods - Emit the [Input,Output]Language()
1100 /// methods for a given Tool class.
1101 void EmitInOutLanguageMethods (const ToolProperties& P, std::ostream& O) {
1102 O << Indent1 << "StrVector InputLanguages() const {\n"
1103 << Indent2 << "StrVector ret;\n";
1105 for (StrVector::const_iterator B = P.InLanguage.begin(),
1106 E = P.InLanguage.end(); B != E; ++B) {
1107 O << Indent2 << "ret.push_back(\"" << *B << "\");\n";
1110 O << Indent2 << "return ret;\n"
1111 << Indent1 << "}\n\n";
1113 O << Indent1 << "const char* OutputLanguage() const {\n"
1114 << Indent2 << "return \"" << P.OutLanguage << "\";\n"
1115 << Indent1 << "}\n\n";
1118 /// EmitOutputSuffixMethod - Emit the OutputSuffix() method for a
1119 /// given Tool class.
1120 void EmitOutputSuffixMethod (const ToolProperties& P, std::ostream& O) {
1121 O << Indent1 << "const char* OutputSuffix() const {\n"
1122 << Indent2 << "const char* ret = \"" << P.OutputSuffix << "\";\n";
1124 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1125 E = P.OptDescs.end(); B != E; ++B) {
1126 const ToolOptionDescription& OptDesc = B->second;
1127 for (OptionPropertyList::const_iterator B = OptDesc.Props.begin(),
1128 E = OptDesc.Props.end(); B != E; ++B) {
1129 const OptionProperty& OptProp = *B;
1130 if (OptProp.first == OptionPropertyType::OutputSuffix) {
1131 O << Indent2 << "if (" << OptDesc.GenVariableName() << ")\n"
1132 << Indent3 << "ret = \"" << OptProp.second << "\";\n";
1137 O << Indent2 << "return ret;\n"
1138 << Indent1 << "}\n\n";
1141 /// EmitNameMethod - Emit the Name() method for a given Tool class.
1142 void EmitNameMethod (const ToolProperties& P, std::ostream& O) {
1143 O << Indent1 << "const char* Name() const {\n"
1144 << Indent2 << "return \"" << P.Name << "\";\n"
1145 << Indent1 << "}\n\n";
1148 /// EmitIsJoinMethod - Emit the IsJoin() method for a given Tool
1150 void EmitIsJoinMethod (const ToolProperties& P, std::ostream& O) {
1151 O << Indent1 << "bool IsJoin() const {\n";
1153 O << Indent2 << "return true;\n";
1155 O << Indent2 << "return false;\n";
1156 O << Indent1 << "}\n\n";
1159 /// EmitToolClassDefinition - Emit a Tool class definition.
1160 void EmitToolClassDefinition (const ToolProperties& P,
1161 const GlobalOptionDescriptions& OptDescs,
1163 if (P.Name == "root")
1167 O << "class " << P.Name << " : public ";
1172 O << " {\npublic:\n";
1174 EmitNameMethod(P, O);
1175 EmitInOutLanguageMethods(P, O);
1176 EmitOutputSuffixMethod(P, O);
1177 EmitIsJoinMethod(P, O);
1178 EmitGenerateActionMethods(P, OptDescs, O);
1179 EmitIsLastMethod(P, O);
1181 // Close class definition
1185 /// EmitOptionDescriptions - Iterate over a list of option
1186 /// descriptions and emit registration code.
1187 void EmitOptionDescriptions (const GlobalOptionDescriptions& descs,
1190 // Emit static cl::Option variables
1191 for (GlobalOptionDescriptions::const_iterator B = descs.begin(),
1192 E = descs.end(); B!=E; ++B) {
1193 const GlobalOptionDescription& val = B->second;
1195 O << val.GenTypeDeclaration() << ' '
1196 << val.GenVariableName()
1197 << "(\"" << val.Name << '\"';
1199 if (val.Type == OptionType::Prefix || val.Type == OptionType::PrefixList)
1200 O << ", cl::Prefix";
1202 if (val.isRequired()) {
1204 case OptionType::PrefixList:
1205 case OptionType::ParameterList:
1206 O << ", cl::OneOrMore";
1209 O << ", cl::Required";
1213 O << ", cl::desc(\"" << val.Help << "\"));\n";
1217 O << "cl::list<std::string> " << SinkOptionName << "(cl::Sink);\n";
1222 /// EmitPopulateLanguageMap - Emit the PopulateLanguageMap() function.
1223 void EmitPopulateLanguageMap (const RecordKeeper& Records, std::ostream& O)
1225 // Get the relevant field out of RecordKeeper
1226 Record* LangMapRecord = Records.getDef("LanguageMap");
1228 throw std::string("Language map definition not found!");
1230 ListInit* LangsToSuffixesList = LangMapRecord->getValueAsListInit("map");
1231 if (!LangsToSuffixesList)
1232 throw std::string("Error in the language map definition!");
1235 O << "void llvmc::PopulateLanguageMap() {\n";
1237 for (unsigned i = 0; i < LangsToSuffixesList->size(); ++i) {
1238 Record* LangToSuffixes = LangsToSuffixesList->getElementAsRecord(i);
1240 const std::string& Lang = LangToSuffixes->getValueAsString("lang");
1241 const ListInit* Suffixes = LangToSuffixes->getValueAsListInit("suffixes");
1243 for (unsigned i = 0; i < Suffixes->size(); ++i)
1244 O << Indent1 << "GlobalLanguageMap[\""
1245 << InitPtrToString(Suffixes->getElement(i))
1246 << "\"] = \"" << Lang << "\";\n";
1252 /// FillInToolToLang - Fills in two tables that map tool names to
1253 /// (input, output) languages. Used by the typechecker.
1254 void FillInToolToLang (const ToolPropertiesList& TPList,
1255 StringMap<StringSet<> >& ToolToInLang,
1256 StringMap<std::string>& ToolToOutLang) {
1257 for (ToolPropertiesList::const_iterator B = TPList.begin(), E = TPList.end();
1259 const ToolProperties& P = *(*B);
1260 for (StrVector::const_iterator B = P.InLanguage.begin(),
1261 E = P.InLanguage.end(); B != E; ++B)
1262 ToolToInLang[P.Name].insert(*B);
1263 ToolToOutLang[P.Name] = P.OutLanguage;
1267 /// TypecheckGraph - Check that names for output and input languages
1268 /// on all edges do match.
1269 // TOFIX: It would be nice if this function also checked for cycles
1270 // and multiple default edges in the graph (better error
1271 // reporting). Unfortunately, it is awkward to do right now because
1272 // our intermediate representation is not sufficiently
1273 // sofisticated. Algorithms like these should be run on a real graph
1275 void TypecheckGraph (Record* CompilationGraph,
1276 const ToolPropertiesList& TPList) {
1277 StringMap<StringSet<> > ToolToInLang;
1278 StringMap<std::string> ToolToOutLang;
1280 FillInToolToLang(TPList, ToolToInLang, ToolToOutLang);
1281 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1282 StringMap<std::string>::iterator IAE = ToolToOutLang.end();
1283 StringMap<StringSet<> >::iterator IBE = ToolToInLang.end();
1285 for (unsigned i = 0; i < edges->size(); ++i) {
1286 Record* Edge = edges->getElementAsRecord(i);
1287 Record* A = Edge->getValueAsDef("a");
1288 Record* B = Edge->getValueAsDef("b");
1289 StringMap<std::string>::iterator IA = ToolToOutLang.find(A->getName());
1290 StringMap<StringSet<> >::iterator IB = ToolToInLang.find(B->getName());
1292 throw A->getName() + ": no such tool!";
1294 throw B->getName() + ": no such tool!";
1295 if (A->getName() != "root" && IB->second.count(IA->second) == 0)
1296 throw "Edge " + A->getName() + "->" + B->getName()
1297 + ": output->input language mismatch";
1298 if (B->getName() == "root")
1299 throw std::string("Edges back to the root are not allowed!");
1303 /// IncDecWeight - Helper function passed to EmitCaseConstructHandler()
1304 /// by EmitEdgeClass().
1305 void IncDecWeight (const Init* i, const char* IndentLevel,
1307 const DagInit& d = InitPtrToDag(i);
1308 const std::string& OpName = d.getOperator()->getAsString();
1310 if (OpName == "inc_weight")
1311 O << IndentLevel << Indent1 << "ret += ";
1312 else if (OpName == "dec_weight")
1313 O << IndentLevel << Indent1 << "ret -= ";
1315 throw "Unknown operator in edge properties list: " + OpName + '!';
1317 if (d.getNumArgs() > 0)
1318 O << InitPtrToInt(d.getArg(0)) << ";\n";
1324 /// EmitEdgeClass - Emit a single Edge# class.
1325 void EmitEdgeClass (unsigned N, const std::string& Target,
1326 DagInit* Case, const GlobalOptionDescriptions& OptDescs,
1329 // Class constructor.
1330 O << "class Edge" << N << ": public Edge {\n"
1332 << Indent1 << "Edge" << N << "() : Edge(\"" << Target
1335 // Function Weight().
1336 << Indent1 << "unsigned Weight(const InputLanguagesSet& InLangs) const {\n"
1337 << Indent2 << "unsigned ret = 0;\n";
1339 // Handle the 'case' construct.
1340 EmitCaseConstructHandler(Case, Indent2, IncDecWeight, false, OptDescs, O);
1342 O << Indent2 << "return ret;\n"
1343 << Indent1 << "};\n\n};\n\n";
1346 /// EmitEdgeClasses - Emit Edge* classes that represent graph edges.
1347 void EmitEdgeClasses (Record* CompilationGraph,
1348 const GlobalOptionDescriptions& OptDescs,
1350 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1352 for (unsigned i = 0; i < edges->size(); ++i) {
1353 Record* Edge = edges->getElementAsRecord(i);
1354 Record* B = Edge->getValueAsDef("b");
1355 DagInit* Weight = Edge->getValueAsDag("weight");
1357 if (isDagEmpty(Weight))
1360 EmitEdgeClass(i, B->getName(), Weight, OptDescs, O);
1364 /// EmitPopulateCompilationGraph - Emit the PopulateCompilationGraph()
1366 void EmitPopulateCompilationGraph (Record* CompilationGraph,
1369 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1372 O << "void llvmc::PopulateCompilationGraph(CompilationGraph& G) {\n"
1373 << Indent1 << "PopulateLanguageMap();\n\n";
1377 RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
1379 throw std::string("No tool definitions found!");
1381 for (RecordVector::iterator B = Tools.begin(), E = Tools.end(); B != E; ++B) {
1382 const std::string& Name = (*B)->getName();
1384 O << Indent1 << "G.insertNode(new "
1385 << Name << "());\n";
1391 for (unsigned i = 0; i < edges->size(); ++i) {
1392 Record* Edge = edges->getElementAsRecord(i);
1393 Record* A = Edge->getValueAsDef("a");
1394 Record* B = Edge->getValueAsDef("b");
1395 DagInit* Weight = Edge->getValueAsDag("weight");
1397 O << Indent1 << "G.insertEdge(\"" << A->getName() << "\", ";
1399 if (isDagEmpty(Weight))
1400 O << "new SimpleEdge(\"" << B->getName() << "\")";
1402 O << "new Edge" << i << "()";
1410 /// ExtractHookNames - Extract the hook names from all instances of
1411 /// $CALL(HookName) in the provided command line string. Helper
1412 /// function used by FillInHookNames().
1413 void ExtractHookNames(const Init* CmdLine, StrVector& HookNames) {
1415 llvm::SplitString(InitPtrToString(CmdLine), cmds);
1416 for (StrVector::const_iterator B = cmds.begin(), E = cmds.end();
1418 const std::string& cmd = *B;
1419 if (cmd.find("$CALL(") == 0) {
1420 if (cmd.size() == 6)
1421 throw std::string("$CALL invocation: empty argument list!");
1422 HookNames.push_back(std::string(cmd.begin() + 6,
1423 cmd.begin() + cmd.find(")")));
1428 /// FillInHookNames - Actually extract the hook names from all command
1429 /// line strings. Helper function used by EmitHookDeclarations().
1430 void FillInHookNames(const ToolPropertiesList& TPList,
1431 StrVector& HookNames) {
1432 for (ToolPropertiesList::const_iterator B = TPList.begin(),
1433 E = TPList.end(); B != E; ++B) {
1434 const ToolProperties& P = *(*B);
1437 if (typeid(*P.CmdLine) == typeid(StringInit)) {
1438 // This is a string.
1439 ExtractHookNames(P.CmdLine, HookNames);
1442 // This is a 'case' construct.
1443 const DagInit& d = InitPtrToDag(P.CmdLine);
1445 for (DagInit::const_arg_iterator B = d.arg_begin(), E = d.arg_end();
1448 ExtractHookNames(*B, HookNames);
1455 /// EmitHookDeclarations - Parse CmdLine fields of all the tool
1456 /// property records and emit hook function declaration for each
1457 /// instance of $CALL(HookName).
1458 void EmitHookDeclarations(const ToolPropertiesList& ToolProps,
1460 StrVector HookNames;
1461 FillInHookNames(ToolProps, HookNames);
1462 if (HookNames.empty())
1464 std::sort(HookNames.begin(), HookNames.end());
1465 StrVector::const_iterator E = std::unique(HookNames.begin(), HookNames.end());
1467 O << "namespace hooks {\n";
1468 for (StrVector::const_iterator B = HookNames.begin(); B != E; ++B)
1469 O << Indent1 << "std::string " << *B << "();\n";
1474 // End of anonymous namespace
1477 /// run - The back-end entry point.
1478 void LLVMCConfigurationEmitter::run (std::ostream &O) {
1480 // Emit file header.
1481 EmitSourceFileHeader("LLVMC Configuration Library", O);
1483 // Get a list of all defined Tools.
1484 RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
1486 throw std::string("No tool definitions found!");
1488 // Gather information from the Tool description dags.
1489 ToolPropertiesList tool_props;
1490 GlobalOptionDescriptions opt_descs;
1491 CollectToolProperties(Tools.begin(), Tools.end(), tool_props, opt_descs);
1493 // Emit global option registration code.
1494 EmitOptionDescriptions(opt_descs, O);
1496 // Emit hook declarations.
1497 EmitHookDeclarations(tool_props, O);
1499 // Emit PopulateLanguageMap() function
1500 // (a language map maps from file extensions to language names).
1501 EmitPopulateLanguageMap(Records, O);
1503 // Emit Tool classes.
1504 for (ToolPropertiesList::const_iterator B = tool_props.begin(),
1505 E = tool_props.end(); B!=E; ++B)
1506 EmitToolClassDefinition(*(*B), opt_descs, O);
1508 Record* CompilationGraphRecord = Records.getDef("CompilationGraph");
1509 if (!CompilationGraphRecord)
1510 throw std::string("Compilation graph description not found!");
1512 // Typecheck the compilation graph.
1513 TypecheckGraph(CompilationGraphRecord, tool_props);
1515 // Emit Edge# classes.
1516 EmitEdgeClasses(CompilationGraphRecord, opt_descs, O);
1518 // Emit PopulateCompilationGraph() function.
1519 EmitPopulateCompilationGraph(CompilationGraphRecord, O);