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 // Switch - a simple switch w/o arguments, e.g. -O2
98 // Parameter - an option that takes one(and only one) argument, e.g. -o file,
101 // ParameterList - same as Parameter, but more than one occurence
102 // of the option is allowed, e.g. -lm -lpthread
104 // Prefix - argument is everything after the prefix,
105 // e.g. -Wa,-foo,-bar, -DNAME=VALUE
107 // PrefixList - same as Prefix, but more than one option occurence is
110 namespace OptionType {
111 enum OptionType { Switch, Parameter, ParameterList, Prefix, PrefixList};
114 bool IsListOptionType (OptionType::OptionType t) {
115 return (t == OptionType::ParameterList || t == OptionType::PrefixList);
118 // Code duplication here is necessary because one option can affect
119 // several tools and those tools may have different actions associated
120 // with this option. GlobalOptionDescriptions are used to generate
121 // the option registration code, while ToolOptionDescriptions are used
122 // to generate tool-specific code.
124 /// OptionDescription - Base class for option descriptions.
125 struct OptionDescription {
126 OptionType::OptionType Type;
129 OptionDescription(OptionType::OptionType t = OptionType::Switch,
130 const std::string& n = "")
134 const char* GenTypeDeclaration() const {
136 case OptionType::PrefixList:
137 case OptionType::ParameterList:
138 return "cl::list<std::string>";
139 case OptionType::Switch:
140 return "cl::opt<bool>";
141 case OptionType::Parameter:
142 case OptionType::Prefix:
144 return "cl::opt<std::string>";
148 // Escape commas and other symbols not allowed in the C++ variable
149 // names. Makes it possible to use options with names like "Wa,"
150 // (useful for prefix options).
151 std::string EscapeVariableName(const std::string& Var) const {
153 for (unsigned i = 0; i != Var.size(); ++i) {
158 ret.push_back(Var[i]);
164 std::string GenVariableName() const {
165 const std::string& EscapedName = EscapeVariableName(Name);
167 case OptionType::Switch:
168 return "AutoGeneratedSwitch" + EscapedName;
169 case OptionType::Prefix:
170 return "AutoGeneratedPrefix" + EscapedName;
171 case OptionType::PrefixList:
172 return "AutoGeneratedPrefixList" + EscapedName;
173 case OptionType::Parameter:
174 return "AutoGeneratedParameter" + EscapedName;
175 case OptionType::ParameterList:
177 return "AutoGeneratedParameterList" + EscapedName;
183 // Global option description.
185 namespace GlobalOptionDescriptionFlags {
186 enum GlobalOptionDescriptionFlags { Required = 0x1 };
189 struct GlobalOptionDescription : public OptionDescription {
193 // We need to provide a default constructor because
194 // StringMap can only store DefaultConstructible objects.
195 GlobalOptionDescription() : OptionDescription(), Flags(0)
198 GlobalOptionDescription (OptionType::OptionType t, const std::string& n)
199 : OptionDescription(t, n), Help(DefaultHelpString), Flags(0)
202 bool isRequired() const {
203 return Flags & GlobalOptionDescriptionFlags::Required;
206 Flags |= GlobalOptionDescriptionFlags::Required;
209 /// Merge - Merge two option descriptions.
210 void Merge (const GlobalOptionDescription& other)
212 if (other.Type != Type)
213 throw "Conflicting definitions for the option " + Name + "!";
215 if (Help == DefaultHelpString)
217 else if (other.Help != DefaultHelpString) {
218 llvm::cerr << "Warning: more than one help string defined for option "
222 Flags |= other.Flags;
226 /// GlobalOptionDescriptions - A GlobalOptionDescription array
227 /// together with some flags affecting generation of option
229 struct GlobalOptionDescriptions {
230 typedef StringMap<GlobalOptionDescription> container_type;
231 typedef container_type::const_iterator const_iterator;
233 /// Descriptions - A list of GlobalOptionDescriptions.
234 container_type Descriptions;
235 /// HasSink - Should the emitter generate a "cl::sink" option?
238 const GlobalOptionDescription& FindOption(const std::string& OptName) const {
239 const_iterator I = Descriptions.find(OptName);
240 if (I != Descriptions.end())
243 throw OptName + ": no such option!";
246 // Support for STL-style iteration
247 const_iterator begin() const { return Descriptions.begin(); }
248 const_iterator end() const { return Descriptions.end(); }
252 // Tool-local option description.
254 // Properties without arguments are implemented as flags.
255 namespace ToolOptionDescriptionFlags {
256 enum ToolOptionDescriptionFlags { StopCompilation = 0x1,
257 Forward = 0x2, UnpackValues = 0x4};
259 namespace OptionPropertyType {
260 enum OptionPropertyType { AppendCmd, OutputSuffix };
263 typedef std::pair<OptionPropertyType::OptionPropertyType, std::string>
265 typedef SmallVector<OptionProperty, 4> OptionPropertyList;
267 struct ToolOptionDescription : public OptionDescription {
269 OptionPropertyList Props;
271 // StringMap can only store DefaultConstructible objects
272 ToolOptionDescription() : OptionDescription(), Flags(0) {}
274 ToolOptionDescription (OptionType::OptionType t, const std::string& n)
275 : OptionDescription(t, n)
278 // Various boolean properties
279 bool isStopCompilation() const {
280 return Flags & ToolOptionDescriptionFlags::StopCompilation;
282 void setStopCompilation() {
283 Flags |= ToolOptionDescriptionFlags::StopCompilation;
286 bool isForward() const {
287 return Flags & ToolOptionDescriptionFlags::Forward;
290 Flags |= ToolOptionDescriptionFlags::Forward;
293 bool isUnpackValues() const {
294 return Flags & ToolOptionDescriptionFlags::UnpackValues;
296 void setUnpackValues() {
297 Flags |= ToolOptionDescriptionFlags::UnpackValues;
300 void AddProperty (OptionPropertyType::OptionPropertyType t,
301 const std::string& val)
303 Props.push_back(std::make_pair(t, val));
307 typedef StringMap<ToolOptionDescription> ToolOptionDescriptions;
309 // Tool information record
311 namespace ToolFlags {
312 enum ToolFlags { Join = 0x1, Sink = 0x2 };
315 struct ToolProperties : public RefCountedBase<ToolProperties> {
318 StrVector InLanguage;
319 std::string OutLanguage;
320 std::string OutputSuffix;
322 ToolOptionDescriptions OptDescs;
324 // Various boolean properties
325 void setSink() { Flags |= ToolFlags::Sink; }
326 bool isSink() const { return Flags & ToolFlags::Sink; }
327 void setJoin() { Flags |= ToolFlags::Join; }
328 bool isJoin() const { return Flags & ToolFlags::Join; }
330 // Default ctor here is needed because StringMap can only store
331 // DefaultConstructible objects
332 ToolProperties() : Flags(0) {}
333 ToolProperties (const std::string& n) : Name(n), Flags(0) {}
337 /// ToolPropertiesList - A list of Tool information records
338 /// IntrusiveRefCntPtrs are used here because StringMap has no copy
339 /// constructor (and we want to avoid copying ToolProperties anyway).
340 typedef std::vector<IntrusiveRefCntPtr<ToolProperties> > ToolPropertiesList;
343 /// CollectProperties - Function object for iterating over a list of
344 /// tool property records.
345 class CollectProperties {
348 /// Implementation details
350 /// PropertyHandler - a function that extracts information
351 /// about a given tool property from its DAG representation
352 typedef void (CollectProperties::*PropertyHandler)(const DagInit*);
354 /// PropertyHandlerMap - A map from property names to property
356 typedef StringMap<PropertyHandler> PropertyHandlerMap;
358 /// OptionPropertyHandler - a function that extracts information
359 /// about a given option property from its DAG representation.
360 typedef void (CollectProperties::* OptionPropertyHandler)
361 (const DagInit*, GlobalOptionDescription &);
363 /// OptionPropertyHandlerMap - A map from option property names to
364 /// option property handlers
365 typedef StringMap<OptionPropertyHandler> OptionPropertyHandlerMap;
367 // Static maps from strings to CollectProperties methods("handlers")
368 static PropertyHandlerMap propertyHandlers_;
369 static OptionPropertyHandlerMap optionPropertyHandlers_;
370 static bool staticMembersInitialized_;
373 /// This is where the information is stored
375 /// toolProps_ - Properties of the current Tool.
376 ToolProperties& toolProps_;
377 /// optDescs_ - OptionDescriptions table (used to register options
379 GlobalOptionDescriptions& optDescs_;
383 explicit CollectProperties (ToolProperties& p, GlobalOptionDescriptions& d)
384 : toolProps_(p), optDescs_(d)
386 if (!staticMembersInitialized_) {
387 // Init tool property handlers
388 propertyHandlers_["cmd_line"] = &CollectProperties::onCmdLine;
389 propertyHandlers_["in_language"] = &CollectProperties::onInLanguage;
390 propertyHandlers_["join"] = &CollectProperties::onJoin;
391 propertyHandlers_["out_language"] = &CollectProperties::onOutLanguage;
392 propertyHandlers_["output_suffix"] = &CollectProperties::onOutputSuffix;
393 propertyHandlers_["parameter_option"]
394 = &CollectProperties::onParameter;
395 propertyHandlers_["parameter_list_option"] =
396 &CollectProperties::onParameterList;
397 propertyHandlers_["prefix_option"] = &CollectProperties::onPrefix;
398 propertyHandlers_["prefix_list_option"] =
399 &CollectProperties::onPrefixList;
400 propertyHandlers_["sink"] = &CollectProperties::onSink;
401 propertyHandlers_["switch_option"] = &CollectProperties::onSwitch;
403 // Init option property handlers
404 optionPropertyHandlers_["append_cmd"] = &CollectProperties::onAppendCmd;
405 optionPropertyHandlers_["forward"] = &CollectProperties::onForward;
406 optionPropertyHandlers_["help"] = &CollectProperties::onHelp;
407 optionPropertyHandlers_["output_suffix"] =
408 &CollectProperties::onOutputSuffixOptionProp;
409 optionPropertyHandlers_["required"] = &CollectProperties::onRequired;
410 optionPropertyHandlers_["stop_compilation"] =
411 &CollectProperties::onStopCompilation;
412 optionPropertyHandlers_["unpack_values"] =
413 &CollectProperties::onUnpackValues;
415 staticMembersInitialized_ = true;
419 /// operator() - Gets called for every tool property; Just forwards
420 /// to the corresponding property handler.
421 void operator() (Init* i) {
422 const DagInit& d = InitPtrToDag(i);
423 const std::string& property_name = d.getOperator()->getAsString();
424 PropertyHandlerMap::iterator method
425 = propertyHandlers_.find(property_name);
427 if (method != propertyHandlers_.end()) {
428 PropertyHandler h = method->second;
432 throw "Unknown tool property: " + property_name + "!";
438 /// Property handlers --
439 /// Functions that extract information about tool properties from
440 /// DAG representation.
442 void onCmdLine (const DagInit* d) {
443 checkNumberOfArguments(d, 1);
444 toolProps_.CmdLine = d->getArg(0);
447 void onInLanguage (const DagInit* d) {
448 checkNumberOfArguments(d, 1);
449 Init* arg = d->getArg(0);
451 // Find out the argument's type.
452 if (typeid(*arg) == typeid(StringInit)) {
454 toolProps_.InLanguage.push_back(InitPtrToString(arg));
458 const ListInit& lst = InitPtrToList(arg);
459 StrVector& out = toolProps_.InLanguage;
461 // Copy strings to the output vector.
462 for (ListInit::const_iterator B = lst.begin(), E = lst.end();
464 out.push_back(InitPtrToString(*B));
467 // Remove duplicates.
468 std::sort(out.begin(), out.end());
469 StrVector::iterator newE = std::unique(out.begin(), out.end());
470 out.erase(newE, out.end());
474 void onJoin (const DagInit* d) {
475 checkNumberOfArguments(d, 0);
476 toolProps_.setJoin();
479 void onOutLanguage (const DagInit* d) {
480 checkNumberOfArguments(d, 1);
481 toolProps_.OutLanguage = InitPtrToString(d->getArg(0));
484 void onOutputSuffix (const DagInit* d) {
485 checkNumberOfArguments(d, 1);
486 toolProps_.OutputSuffix = InitPtrToString(d->getArg(0));
489 void onSink (const DagInit* d) {
490 checkNumberOfArguments(d, 0);
491 optDescs_.HasSink = true;
492 toolProps_.setSink();
495 void onSwitch (const DagInit* d) {
496 addOption(d, OptionType::Switch);
499 void onParameter (const DagInit* d) {
500 addOption(d, OptionType::Parameter);
503 void onParameterList (const DagInit* d) {
504 addOption(d, OptionType::ParameterList);
507 void onPrefix (const DagInit* d) {
508 addOption(d, OptionType::Prefix);
511 void onPrefixList (const DagInit* d) {
512 addOption(d, OptionType::PrefixList);
515 /// Option property handlers --
516 /// Methods that handle properties that are common for all types of
517 /// options (like append_cmd, stop_compilation)
519 void onAppendCmd (const DagInit* d, GlobalOptionDescription& o) {
520 checkNumberOfArguments(d, 1);
521 const std::string& cmd = InitPtrToString(d->getArg(0));
523 toolProps_.OptDescs[o.Name].AddProperty(OptionPropertyType::AppendCmd, cmd);
526 void onOutputSuffixOptionProp (const DagInit* d, GlobalOptionDescription& o) {
527 checkNumberOfArguments(d, 1);
528 const std::string& suf = InitPtrToString(d->getArg(0));
530 if (toolProps_.OptDescs[o.Name].Type != OptionType::Switch)
531 throw "Option " + o.Name
532 + " can't have 'output_suffix' property since it isn't a switch!";
534 toolProps_.OptDescs[o.Name].AddProperty
535 (OptionPropertyType::OutputSuffix, suf);
538 void onForward (const DagInit* d, GlobalOptionDescription& o) {
539 checkNumberOfArguments(d, 0);
540 toolProps_.OptDescs[o.Name].setForward();
543 void onHelp (const DagInit* d, GlobalOptionDescription& o) {
544 checkNumberOfArguments(d, 1);
545 const std::string& help_message = InitPtrToString(d->getArg(0));
547 o.Help = help_message;
550 void onRequired (const DagInit* d, GlobalOptionDescription& o) {
551 checkNumberOfArguments(d, 0);
555 void onStopCompilation (const DagInit* d, GlobalOptionDescription& o) {
556 checkNumberOfArguments(d, 0);
557 if (o.Type != OptionType::Switch)
558 throw std::string("Only options of type Switch can stop compilation!");
559 toolProps_.OptDescs[o.Name].setStopCompilation();
562 void onUnpackValues (const DagInit* d, GlobalOptionDescription& o) {
563 checkNumberOfArguments(d, 0);
564 toolProps_.OptDescs[o.Name].setUnpackValues();
569 // Add an option of type t
570 void addOption (const DagInit* d, OptionType::OptionType t) {
571 checkNumberOfArguments(d, 2);
572 const std::string& name = InitPtrToString(d->getArg(0));
574 GlobalOptionDescription o(t, name);
575 toolProps_.OptDescs[name].Type = t;
576 toolProps_.OptDescs[name].Name = name;
577 processOptionProperties(d, o);
578 insertDescription(o);
581 // Insert new GlobalOptionDescription into GlobalOptionDescriptions list
582 void insertDescription (const GlobalOptionDescription& o)
584 if (optDescs_.Descriptions.count(o.Name)) {
585 GlobalOptionDescription& D = optDescs_.Descriptions[o.Name];
589 optDescs_.Descriptions[o.Name] = o;
593 /// processOptionProperties - Go through the list of option
594 /// properties and call a corresponding handler for each.
597 /// name - option name
598 /// d - option property list
599 void processOptionProperties (const DagInit* d, GlobalOptionDescription& o) {
600 // First argument is option name
601 checkNumberOfArguments(d, 2);
603 for (unsigned B = 1, E = d->getNumArgs(); B!=E; ++B) {
604 const DagInit& option_property
605 = InitPtrToDag(d->getArg(B));
606 const std::string& option_property_name
607 = option_property.getOperator()->getAsString();
608 OptionPropertyHandlerMap::iterator method
609 = optionPropertyHandlers_.find(option_property_name);
611 if (method != optionPropertyHandlers_.end()) {
612 OptionPropertyHandler h = method->second;
613 (this->*h)(&option_property, o);
616 throw "Unknown option property: " + option_property_name + "!";
622 // Static members of CollectProperties
623 CollectProperties::PropertyHandlerMap
624 CollectProperties::propertyHandlers_;
626 CollectProperties::OptionPropertyHandlerMap
627 CollectProperties::optionPropertyHandlers_;
629 bool CollectProperties::staticMembersInitialized_ = false;
632 /// CollectToolProperties - Gather information from the parsed
633 /// TableGen data (basically a wrapper for the CollectProperties
634 /// function object).
635 void CollectToolProperties (RecordVector::const_iterator B,
636 RecordVector::const_iterator E,
637 ToolPropertiesList& TPList,
638 GlobalOptionDescriptions& OptDescs)
640 // Iterate over a properties list of every Tool definition
642 RecordVector::value_type T = *B;
643 ListInit* PropList = T->getValueAsListInit("properties");
645 IntrusiveRefCntPtr<ToolProperties>
646 ToolProps(new ToolProperties(T->getName()));
648 std::for_each(PropList->begin(), PropList->end(),
649 CollectProperties(*ToolProps, OptDescs));
650 TPList.push_back(ToolProps);
654 /// EmitCaseTest1Arg - Helper function used by
655 /// EmitCaseConstructHandler.
656 bool EmitCaseTest1Arg(const std::string& TestName,
658 const GlobalOptionDescriptions& OptDescs,
660 checkNumberOfArguments(&d, 1);
661 const std::string& OptName = InitPtrToString(d.getArg(0));
662 if (TestName == "switch_on") {
663 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
664 if (OptDesc.Type != OptionType::Switch)
665 throw OptName + ": incorrect option type!";
666 O << OptDesc.GenVariableName();
668 } else if (TestName == "input_languages_contain") {
669 O << "InLangs.count(\"" << OptName << "\") != 0";
671 } else if (TestName == "in_language") {
672 // Works only for cmd_line!
673 O << "GetLanguage(inFile) == \"" << OptName << '\"';
675 } else if (TestName == "not_empty") {
676 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
677 if (OptDesc.Type == OptionType::Switch)
678 throw OptName + ": incorrect option type!";
679 O << '!' << OptDesc.GenVariableName() << ".empty()";
686 /// EmitCaseTest2Args - Helper function used by
687 /// EmitCaseConstructHandler.
688 bool EmitCaseTest2Args(const std::string& TestName,
690 const char* IndentLevel,
691 const GlobalOptionDescriptions& OptDescs,
693 checkNumberOfArguments(&d, 2);
694 const std::string& OptName = InitPtrToString(d.getArg(0));
695 const std::string& OptArg = InitPtrToString(d.getArg(1));
696 const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
698 if (TestName == "parameter_equals") {
699 if (OptDesc.Type != OptionType::Parameter
700 && OptDesc.Type != OptionType::Prefix)
701 throw OptName + ": incorrect option type!";
702 O << OptDesc.GenVariableName() << " == \"" << OptArg << "\"";
705 else if (TestName == "element_in_list") {
706 if (OptDesc.Type != OptionType::ParameterList
707 && OptDesc.Type != OptionType::PrefixList)
708 throw OptName + ": incorrect option type!";
709 const std::string& VarName = OptDesc.GenVariableName();
710 O << "std::find(" << VarName << ".begin(),\n"
711 << IndentLevel << Indent1 << VarName << ".end(), \""
712 << OptArg << "\") != " << VarName << ".end()";
719 // Forward declaration.
720 // EmitLogicalOperationTest and EmitCaseTest are mutually recursive.
721 void EmitCaseTest(const DagInit& d, const char* IndentLevel,
722 const GlobalOptionDescriptions& OptDescs,
725 /// EmitLogicalOperationTest - Helper function used by
726 /// EmitCaseConstructHandler.
727 void EmitLogicalOperationTest(const DagInit& d, const char* LogicOp,
728 const char* IndentLevel,
729 const GlobalOptionDescriptions& OptDescs,
732 for (unsigned j = 0, NumArgs = d.getNumArgs(); j < NumArgs; ++j) {
733 const DagInit& InnerTest = InitPtrToDag(d.getArg(j));
734 EmitCaseTest(InnerTest, IndentLevel, OptDescs, O);
735 if (j != NumArgs - 1)
736 O << ")\n" << IndentLevel << Indent1 << ' ' << LogicOp << " (";
742 /// EmitCaseTest - Helper function used by EmitCaseConstructHandler.
743 void EmitCaseTest(const DagInit& d, const char* IndentLevel,
744 const GlobalOptionDescriptions& OptDescs,
746 const std::string& TestName = d.getOperator()->getAsString();
748 if (TestName == "and")
749 EmitLogicalOperationTest(d, "&&", IndentLevel, OptDescs, O);
750 else if (TestName == "or")
751 EmitLogicalOperationTest(d, "||", IndentLevel, OptDescs, O);
752 else if (EmitCaseTest1Arg(TestName, d, OptDescs, O))
754 else if (EmitCaseTest2Args(TestName, d, IndentLevel, OptDescs, O))
757 throw TestName + ": unknown edge property!";
760 // Emit code that handles the 'case' construct.
761 // Takes a function object that should emit code for every case clause.
762 // Callback's type is
763 // void F(Init* Statement, const char* IndentLevel, std::ostream& O).
764 template <typename F>
765 void EmitCaseConstructHandler(const DagInit* d, const char* IndentLevel,
766 const F& Callback, bool EmitElseIf,
767 const GlobalOptionDescriptions& OptDescs,
769 assert(d->getOperator()->getAsString() == "case");
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") {
782 throw std::string("The 'default' clause should be the last in the"
783 "'case' construct!");
784 O << IndentLevel << "else {\n";
787 O << IndentLevel << ((i != 0 && EmitElseIf) ? "else if (" : "if (");
788 EmitCaseTest(Test, IndentLevel, OptDescs, O);
792 // Emit the corresponding statement.
795 throw "Case construct handler: no corresponding action "
796 "found for the test " + Test.getAsString() + '!';
798 Init* arg = d->getArg(i);
799 if (dynamic_cast<DagInit*>(arg)
800 && static_cast<DagInit*>(arg)->getOperator()->getAsString() == "case") {
801 EmitCaseConstructHandler(static_cast<DagInit*>(arg),
802 (std::string(IndentLevel) + Indent1).c_str(),
803 Callback, EmitElseIf, OptDescs, O);
806 Callback(arg, IndentLevel, O);
808 O << IndentLevel << "}\n";
812 /// EmitForwardOptionPropertyHandlingCode - Helper function used to
813 /// implement EmitOptionPropertyHandlingCode(). Emits code for
814 /// handling the (forward) option property.
815 void EmitForwardOptionPropertyHandlingCode (const ToolOptionDescription& D,
818 case OptionType::Switch:
819 O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
821 case OptionType::Parameter:
822 O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
823 O << Indent3 << "vec.push_back(" << D.GenVariableName() << ");\n";
825 case OptionType::Prefix:
826 O << Indent3 << "vec.push_back(\"-" << D.Name << "\" + "
827 << D.GenVariableName() << ");\n";
829 case OptionType::PrefixList:
830 O << Indent3 << "for (" << D.GenTypeDeclaration()
831 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
832 << Indent3 << "E = " << D.GenVariableName() << ".end(); B != E; ++B)\n"
833 << Indent4 << "vec.push_back(\"-" << D.Name << "\" + "
836 case OptionType::ParameterList:
837 O << Indent3 << "for (" << D.GenTypeDeclaration()
838 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
839 << Indent3 << "E = " << D.GenVariableName()
840 << ".end() ; B != E; ++B) {\n"
841 << Indent4 << "vec.push_back(\"-" << D.Name << "\");\n"
842 << Indent4 << "vec.push_back(*B);\n"
848 // ToolOptionHasInterestingProperties - A helper function used by
849 // EmitOptionPropertyHandlingCode() that tells us whether we should
850 // emit any property handling code at all.
851 bool ToolOptionHasInterestingProperties(const ToolOptionDescription& D) {
853 for (OptionPropertyList::const_iterator B = D.Props.begin(),
854 E = D.Props.end(); B != E; ++B) {
855 const OptionProperty& OptProp = *B;
856 if (OptProp.first == OptionPropertyType::AppendCmd)
859 if (D.isForward() || D.isUnpackValues())
864 /// EmitOptionPropertyHandlingCode - Helper function used by
865 /// EmitGenerateActionMethod(). Emits code that handles option
867 void EmitOptionPropertyHandlingCode (const ToolOptionDescription& D,
870 if (!ToolOptionHasInterestingProperties(D))
872 // Start of the if-clause.
873 O << Indent2 << "if (";
874 if (D.Type == OptionType::Switch)
875 O << D.GenVariableName();
877 O << '!' << D.GenVariableName() << ".empty()";
881 // Handle option properties that take an argument.
882 for (OptionPropertyList::const_iterator B = D.Props.begin(),
883 E = D.Props.end(); B!=E; ++B) {
884 const OptionProperty& val = *B;
887 // (append_cmd cmd) property
888 case OptionPropertyType::AppendCmd:
889 O << Indent3 << "vec.push_back(\"" << val.second << "\");\n";
891 // Other properties with argument
899 // (forward) property
901 EmitForwardOptionPropertyHandlingCode(D, O);
903 // (unpack_values) property
904 if (D.isUnpackValues()) {
905 if (IsListOptionType(D.Type)) {
906 O << Indent3 << "for (" << D.GenTypeDeclaration()
907 << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
908 << Indent3 << "E = " << D.GenVariableName()
909 << ".end(); B != E; ++B)\n"
910 << Indent4 << "llvm::SplitString(*B, vec, \",\");\n";
912 else if (D.Type == OptionType::Prefix || D.Type == OptionType::Parameter){
913 O << Indent3 << "llvm::SplitString("
914 << D.GenVariableName() << ", vec, \",\");\n";
917 throw std::string("Switches can't have unpack_values property!");
921 // End of the if-clause.
922 O << Indent2 << "}\n";
925 /// SubstituteSpecialCommands - Perform string substitution for $CALL
926 /// and $ENV. Helper function used by EmitCmdLineVecFill().
927 std::string SubstituteSpecialCommands(const std::string& cmd) {
928 size_t cparen = cmd.find(")");
931 if (cmd.find("$CALL(") == 0) {
933 throw std::string("$CALL invocation: empty argument list!");
936 ret += std::string(cmd.begin() + 6, cmd.begin() + cparen);
939 else if (cmd.find("$ENV(") == 0) {
941 throw std::string("$ENV invocation: empty argument list!");
943 ret += "std::getenv(\"";
944 ret += std::string(cmd.begin() + 5, cmd.begin() + cparen);
948 throw "Unknown special command: " + cmd;
951 if (cmd.begin() + cparen + 1 != cmd.end()) {
952 ret += " + std::string(\"";
953 ret += (cmd.c_str() + cparen + 1);
960 /// EmitCmdLineVecFill - Emit code that fills in the command line
961 /// vector. Helper function used by EmitGenerateActionMethod().
962 void EmitCmdLineVecFill(const Init* CmdLine, const std::string& ToolName,
963 bool Version, const char* IndentLevel,
966 SplitString(InitPtrToString(CmdLine), StrVec);
968 throw "Tool " + ToolName + " has empty command line!";
970 StrVector::const_iterator I = StrVec.begin();
972 for (StrVector::const_iterator E = StrVec.end(); I != E; ++I) {
973 const std::string& cmd = *I;
975 if (cmd.at(0) == '$') {
976 if (cmd == "$INFILE") {
978 O << "for (PathVector::const_iterator B = inFiles.begin()"
979 << ", E = inFiles.end();\n"
980 << IndentLevel << "B != E; ++B)\n"
981 << IndentLevel << Indent1 << "vec.push_back(B->toString());\n";
983 O << "vec.push_back(inFile.toString());\n";
985 else if (cmd == "$OUTFILE") {
986 O << "vec.push_back(outFile.toString());\n";
989 O << "vec.push_back(" << SubstituteSpecialCommands(cmd);
994 O << "vec.push_back(\"" << cmd << "\");\n";
997 O << IndentLevel << "ret = Action("
998 << ((StrVec[0][0] == '$') ? SubstituteSpecialCommands(StrVec[0])
999 : "\"" + StrVec[0] + "\"")
1003 /// EmitCmdLineVecFillCallback - A function object wrapper around
1004 /// EmitCmdLineVecFill(). Used by EmitGenerateActionMethod() as an
1005 /// argument to EmitCaseConstructHandler().
1006 class EmitCmdLineVecFillCallback {
1008 const std::string& ToolName;
1010 EmitCmdLineVecFillCallback(bool Ver, const std::string& TN)
1011 : Version(Ver), ToolName(TN) {}
1013 void operator()(const Init* Statement, const char* IndentLevel,
1014 std::ostream& O) const
1016 EmitCmdLineVecFill(Statement, ToolName, Version,
1017 (std::string(IndentLevel) + Indent1).c_str(), O);
1021 // EmitGenerateActionMethod - Emit one of two versions of the
1022 // Tool::GenerateAction() method.
1023 void EmitGenerateActionMethod (const ToolProperties& P,
1024 const GlobalOptionDescriptions& OptDescs,
1025 bool Version, std::ostream& O) {
1027 O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n";
1029 O << Indent1 << "Action GenerateAction(const sys::Path& inFile,\n";
1031 O << Indent2 << "const sys::Path& outFile,\n"
1032 << Indent2 << "const InputLanguagesSet& InLangs) const\n"
1034 << Indent2 << "Action ret;\n"
1035 << Indent2 << "std::vector<std::string> vec;\n";
1037 // cmd_line is either a string or a 'case' construct.
1038 if (typeid(*P.CmdLine) == typeid(StringInit))
1039 EmitCmdLineVecFill(P.CmdLine, P.Name, Version, Indent2, O);
1041 EmitCaseConstructHandler(&InitPtrToDag(P.CmdLine), Indent2,
1042 EmitCmdLineVecFillCallback(Version, P.Name),
1045 // For every understood option, emit handling code.
1046 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1047 E = P.OptDescs.end(); B != E; ++B) {
1048 const ToolOptionDescription& val = B->second;
1049 EmitOptionPropertyHandlingCode(val, O);
1052 // Handle the Sink property.
1054 O << Indent2 << "if (!" << SinkOptionName << ".empty()) {\n"
1055 << Indent3 << "vec.insert(vec.end(), "
1056 << SinkOptionName << ".begin(), " << SinkOptionName << ".end());\n"
1057 << Indent2 << "}\n";
1060 O << Indent2 << "return ret;\n"
1061 << Indent1 << "}\n\n";
1064 /// EmitGenerateActionMethods - Emit two GenerateAction() methods for
1065 /// a given Tool class.
1066 void EmitGenerateActionMethods (const ToolProperties& P,
1067 const GlobalOptionDescriptions& OptDescs,
1070 O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n"
1071 << Indent2 << "const llvm::sys::Path& outFile,\n"
1072 << Indent2 << "const InputLanguagesSet& InLangs) const\n"
1074 << Indent2 << "throw std::runtime_error(\"" << P.Name
1075 << " is not a Join tool!\");\n"
1076 << Indent1 << "}\n\n";
1078 EmitGenerateActionMethod(P, OptDescs, true, O);
1080 EmitGenerateActionMethod(P, OptDescs, false, O);
1083 /// EmitIsLastMethod - Emit the IsLast() method for a given Tool
1085 void EmitIsLastMethod (const ToolProperties& P, std::ostream& O) {
1086 O << Indent1 << "bool IsLast() const {\n"
1087 << Indent2 << "bool last = false;\n";
1089 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1090 E = P.OptDescs.end(); B != E; ++B) {
1091 const ToolOptionDescription& val = B->second;
1093 if (val.isStopCompilation())
1095 << "if (" << val.GenVariableName()
1096 << ")\n" << Indent3 << "last = true;\n";
1099 O << Indent2 << "return last;\n"
1100 << Indent1 << "}\n\n";
1103 /// EmitInOutLanguageMethods - Emit the [Input,Output]Language()
1104 /// methods for a given Tool class.
1105 void EmitInOutLanguageMethods (const ToolProperties& P, std::ostream& O) {
1106 O << Indent1 << "StrVector InputLanguages() const {\n"
1107 << Indent2 << "StrVector ret;\n";
1109 for (StrVector::const_iterator B = P.InLanguage.begin(),
1110 E = P.InLanguage.end(); B != E; ++B) {
1111 O << Indent2 << "ret.push_back(\"" << *B << "\");\n";
1114 O << Indent2 << "return ret;\n"
1115 << Indent1 << "}\n\n";
1117 O << Indent1 << "const char* OutputLanguage() const {\n"
1118 << Indent2 << "return \"" << P.OutLanguage << "\";\n"
1119 << Indent1 << "}\n\n";
1122 /// EmitOutputSuffixMethod - Emit the OutputSuffix() method for a
1123 /// given Tool class.
1124 void EmitOutputSuffixMethod (const ToolProperties& P, std::ostream& O) {
1125 O << Indent1 << "const char* OutputSuffix() const {\n"
1126 << Indent2 << "const char* ret = \"" << P.OutputSuffix << "\";\n";
1128 for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
1129 E = P.OptDescs.end(); B != E; ++B) {
1130 const ToolOptionDescription& OptDesc = B->second;
1131 for (OptionPropertyList::const_iterator B = OptDesc.Props.begin(),
1132 E = OptDesc.Props.end(); B != E; ++B) {
1133 const OptionProperty& OptProp = *B;
1134 if (OptProp.first == OptionPropertyType::OutputSuffix) {
1135 O << Indent2 << "if (" << OptDesc.GenVariableName() << ")\n"
1136 << Indent3 << "ret = \"" << OptProp.second << "\";\n";
1141 O << Indent2 << "return ret;\n"
1142 << Indent1 << "}\n\n";
1145 /// EmitNameMethod - Emit the Name() method for a given Tool class.
1146 void EmitNameMethod (const ToolProperties& P, std::ostream& O) {
1147 O << Indent1 << "const char* Name() const {\n"
1148 << Indent2 << "return \"" << P.Name << "\";\n"
1149 << Indent1 << "}\n\n";
1152 /// EmitIsJoinMethod - Emit the IsJoin() method for a given Tool
1154 void EmitIsJoinMethod (const ToolProperties& P, std::ostream& O) {
1155 O << Indent1 << "bool IsJoin() const {\n";
1157 O << Indent2 << "return true;\n";
1159 O << Indent2 << "return false;\n";
1160 O << Indent1 << "}\n\n";
1163 /// EmitToolClassDefinition - Emit a Tool class definition.
1164 void EmitToolClassDefinition (const ToolProperties& P,
1165 const GlobalOptionDescriptions& OptDescs,
1167 if (P.Name == "root")
1171 O << "class " << P.Name << " : public ";
1176 O << " {\npublic:\n";
1178 EmitNameMethod(P, O);
1179 EmitInOutLanguageMethods(P, O);
1180 EmitOutputSuffixMethod(P, O);
1181 EmitIsJoinMethod(P, O);
1182 EmitGenerateActionMethods(P, OptDescs, O);
1183 EmitIsLastMethod(P, O);
1185 // Close class definition
1189 /// EmitOptionDescriptions - Iterate over a list of option
1190 /// descriptions and emit registration code.
1191 void EmitOptionDescriptions (const GlobalOptionDescriptions& descs,
1194 // Emit static cl::Option variables
1195 for (GlobalOptionDescriptions::const_iterator B = descs.begin(),
1196 E = descs.end(); B!=E; ++B) {
1197 const GlobalOptionDescription& val = B->second;
1199 O << val.GenTypeDeclaration() << ' '
1200 << val.GenVariableName()
1201 << "(\"" << val.Name << '\"';
1203 if (val.Type == OptionType::Prefix || val.Type == OptionType::PrefixList)
1204 O << ", cl::Prefix";
1206 if (val.isRequired()) {
1208 case OptionType::PrefixList:
1209 case OptionType::ParameterList:
1210 O << ", cl::OneOrMore";
1213 O << ", cl::Required";
1217 O << ", cl::desc(\"" << val.Help << "\"));\n";
1221 O << "cl::list<std::string> " << SinkOptionName << "(cl::Sink);\n";
1226 /// EmitPopulateLanguageMap - Emit the PopulateLanguageMap() function.
1227 void EmitPopulateLanguageMap (const RecordKeeper& Records, std::ostream& O)
1229 // Get the relevant field out of RecordKeeper
1230 Record* LangMapRecord = Records.getDef("LanguageMap");
1232 throw std::string("Language map definition not found!");
1234 ListInit* LangsToSuffixesList = LangMapRecord->getValueAsListInit("map");
1235 if (!LangsToSuffixesList)
1236 throw std::string("Error in the language map definition!");
1239 O << "void llvmc::PopulateLanguageMap() {\n";
1241 for (unsigned i = 0; i < LangsToSuffixesList->size(); ++i) {
1242 Record* LangToSuffixes = LangsToSuffixesList->getElementAsRecord(i);
1244 const std::string& Lang = LangToSuffixes->getValueAsString("lang");
1245 const ListInit* Suffixes = LangToSuffixes->getValueAsListInit("suffixes");
1247 for (unsigned i = 0; i < Suffixes->size(); ++i)
1248 O << Indent1 << "GlobalLanguageMap[\""
1249 << InitPtrToString(Suffixes->getElement(i))
1250 << "\"] = \"" << Lang << "\";\n";
1256 /// FillInToolToLang - Fills in two tables that map tool names to
1257 /// (input, output) languages. Used by the typechecker.
1258 void FillInToolToLang (const ToolPropertiesList& TPList,
1259 StringMap<StringSet<> >& ToolToInLang,
1260 StringMap<std::string>& ToolToOutLang) {
1261 for (ToolPropertiesList::const_iterator B = TPList.begin(), E = TPList.end();
1263 const ToolProperties& P = *(*B);
1264 for (StrVector::const_iterator B = P.InLanguage.begin(),
1265 E = P.InLanguage.end(); B != E; ++B)
1266 ToolToInLang[P.Name].insert(*B);
1267 ToolToOutLang[P.Name] = P.OutLanguage;
1271 /// TypecheckGraph - Check that names for output and input languages
1272 /// on all edges do match.
1273 // TOFIX: It would be nice if this function also checked for cycles
1274 // and multiple default edges in the graph (better error
1275 // reporting). Unfortunately, it is awkward to do right now because
1276 // our intermediate representation is not sufficiently
1277 // sofisticated. Algorithms like these should be run on a real graph
1279 void TypecheckGraph (Record* CompilationGraph,
1280 const ToolPropertiesList& TPList) {
1281 StringMap<StringSet<> > ToolToInLang;
1282 StringMap<std::string> ToolToOutLang;
1284 FillInToolToLang(TPList, ToolToInLang, ToolToOutLang);
1285 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1286 StringMap<std::string>::iterator IAE = ToolToOutLang.end();
1287 StringMap<StringSet<> >::iterator IBE = ToolToInLang.end();
1289 for (unsigned i = 0; i < edges->size(); ++i) {
1290 Record* Edge = edges->getElementAsRecord(i);
1291 Record* A = Edge->getValueAsDef("a");
1292 Record* B = Edge->getValueAsDef("b");
1293 StringMap<std::string>::iterator IA = ToolToOutLang.find(A->getName());
1294 StringMap<StringSet<> >::iterator IB = ToolToInLang.find(B->getName());
1296 throw A->getName() + ": no such tool!";
1298 throw B->getName() + ": no such tool!";
1299 if (A->getName() != "root" && IB->second.count(IA->second) == 0)
1300 throw "Edge " + A->getName() + "->" + B->getName()
1301 + ": output->input language mismatch";
1302 if (B->getName() == "root")
1303 throw std::string("Edges back to the root are not allowed!");
1307 /// IncDecWeight - Helper function passed to EmitCaseConstructHandler()
1308 /// by EmitEdgeClass().
1309 void IncDecWeight (const Init* i, const char* IndentLevel,
1311 const DagInit& d = InitPtrToDag(i);
1312 const std::string& OpName = d.getOperator()->getAsString();
1314 if (OpName == "inc_weight")
1315 O << IndentLevel << Indent1 << "ret += ";
1316 else if (OpName == "dec_weight")
1317 O << IndentLevel << Indent1 << "ret -= ";
1319 throw "Unknown operator in edge properties list: " + OpName + '!';
1321 if (d.getNumArgs() > 0)
1322 O << InitPtrToInt(d.getArg(0)) << ";\n";
1328 /// EmitEdgeClass - Emit a single Edge# class.
1329 void EmitEdgeClass (unsigned N, const std::string& Target,
1330 DagInit* Case, const GlobalOptionDescriptions& OptDescs,
1333 // Class constructor.
1334 O << "class Edge" << N << ": public Edge {\n"
1336 << Indent1 << "Edge" << N << "() : Edge(\"" << Target
1339 // Function Weight().
1340 << Indent1 << "unsigned Weight(const InputLanguagesSet& InLangs) const {\n"
1341 << Indent2 << "unsigned ret = 0;\n";
1343 // Handle the 'case' construct.
1344 EmitCaseConstructHandler(Case, Indent2, IncDecWeight, false, OptDescs, O);
1346 O << Indent2 << "return ret;\n"
1347 << Indent1 << "};\n\n};\n\n";
1350 /// EmitEdgeClasses - Emit Edge* classes that represent graph edges.
1351 void EmitEdgeClasses (Record* CompilationGraph,
1352 const GlobalOptionDescriptions& OptDescs,
1354 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1356 for (unsigned i = 0; i < edges->size(); ++i) {
1357 Record* Edge = edges->getElementAsRecord(i);
1358 Record* B = Edge->getValueAsDef("b");
1359 DagInit* Weight = Edge->getValueAsDag("weight");
1361 if (isDagEmpty(Weight))
1364 EmitEdgeClass(i, B->getName(), Weight, OptDescs, O);
1368 /// EmitPopulateCompilationGraph - Emit the PopulateCompilationGraph()
1370 void EmitPopulateCompilationGraph (Record* CompilationGraph,
1373 ListInit* edges = CompilationGraph->getValueAsListInit("edges");
1376 O << "void llvmc::PopulateCompilationGraph(CompilationGraph& G) {\n"
1377 << Indent1 << "PopulateLanguageMap();\n\n";
1381 RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
1383 throw std::string("No tool definitions found!");
1385 for (RecordVector::iterator B = Tools.begin(), E = Tools.end(); B != E; ++B) {
1386 const std::string& Name = (*B)->getName();
1388 O << Indent1 << "G.insertNode(new "
1389 << Name << "());\n";
1395 for (unsigned i = 0; i < edges->size(); ++i) {
1396 Record* Edge = edges->getElementAsRecord(i);
1397 Record* A = Edge->getValueAsDef("a");
1398 Record* B = Edge->getValueAsDef("b");
1399 DagInit* Weight = Edge->getValueAsDag("weight");
1401 O << Indent1 << "G.insertEdge(\"" << A->getName() << "\", ";
1403 if (isDagEmpty(Weight))
1404 O << "new SimpleEdge(\"" << B->getName() << "\")";
1406 O << "new Edge" << i << "()";
1414 /// ExtractHookNames - Extract the hook names from all instances of
1415 /// $CALL(HookName) in the provided command line string. Helper
1416 /// function used by FillInHookNames().
1417 void ExtractHookNames(const Init* CmdLine, StrVector& HookNames) {
1419 llvm::SplitString(InitPtrToString(CmdLine), cmds);
1420 for (StrVector::const_iterator B = cmds.begin(), E = cmds.end();
1422 const std::string& cmd = *B;
1423 if (cmd.find("$CALL(") == 0) {
1424 if (cmd.size() == 6)
1425 throw std::string("$CALL invocation: empty argument list!");
1426 HookNames.push_back(std::string(cmd.begin() + 6,
1427 cmd.begin() + cmd.find(")")));
1432 /// ExtractHookNamesFromCaseConstruct - Extract hook names from the
1433 /// 'case' expression, handle nesting. Helper function used by
1434 /// FillInHookNames().
1435 void ExtractHookNamesFromCaseConstruct(Init* Case, StrVector& HookNames) {
1436 const DagInit& d = InitPtrToDag(Case);
1438 for (DagInit::const_arg_iterator B = d.arg_begin(), E = d.arg_end();
1441 if (even && dynamic_cast<DagInit*>(arg)
1442 && static_cast<DagInit*>(arg)->getOperator()->getAsString() == "case")
1443 ExtractHookNamesFromCaseConstruct(arg, HookNames);
1445 ExtractHookNames(arg, HookNames);
1450 /// FillInHookNames - Actually extract the hook names from all command
1451 /// line strings. Helper function used by EmitHookDeclarations().
1452 void FillInHookNames(const ToolPropertiesList& TPList,
1453 StrVector& HookNames) {
1454 // For all command lines:
1455 for (ToolPropertiesList::const_iterator B = TPList.begin(),
1456 E = TPList.end(); B != E; ++B) {
1457 const ToolProperties& P = *(*B);
1460 if (dynamic_cast<StringInit*>(P.CmdLine))
1461 // This is a string.
1462 ExtractHookNames(P.CmdLine, HookNames);
1464 // This is a 'case' construct.
1465 ExtractHookNamesFromCaseConstruct(P.CmdLine, HookNames);
1469 /// EmitHookDeclarations - Parse CmdLine fields of all the tool
1470 /// property records and emit hook function declaration for each
1471 /// instance of $CALL(HookName).
1472 void EmitHookDeclarations(const ToolPropertiesList& ToolProps,
1474 StrVector HookNames;
1475 FillInHookNames(ToolProps, HookNames);
1476 if (HookNames.empty())
1478 std::sort(HookNames.begin(), HookNames.end());
1479 StrVector::const_iterator E = std::unique(HookNames.begin(), HookNames.end());
1481 O << "namespace hooks {\n";
1482 for (StrVector::const_iterator B = HookNames.begin(); B != E; ++B)
1483 O << Indent1 << "std::string " << *B << "();\n";
1488 // End of anonymous namespace
1491 /// run - The back-end entry point.
1492 void LLVMCConfigurationEmitter::run (std::ostream &O) {
1495 // Emit file header.
1496 EmitSourceFileHeader("LLVMC Configuration Library", O);
1498 // Get a list of all defined Tools.
1499 RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
1501 throw std::string("No tool definitions found!");
1503 // Gather information from the Tool description dags.
1504 ToolPropertiesList tool_props;
1505 GlobalOptionDescriptions opt_descs;
1506 CollectToolProperties(Tools.begin(), Tools.end(), tool_props, opt_descs);
1508 // Emit global option registration code.
1509 EmitOptionDescriptions(opt_descs, O);
1511 // Emit hook declarations.
1512 EmitHookDeclarations(tool_props, O);
1514 // Emit PopulateLanguageMap() function
1515 // (a language map maps from file extensions to language names).
1516 EmitPopulateLanguageMap(Records, O);
1518 // Emit Tool classes.
1519 for (ToolPropertiesList::const_iterator B = tool_props.begin(),
1520 E = tool_props.end(); B!=E; ++B)
1521 EmitToolClassDefinition(*(*B), opt_descs, O);
1523 Record* CompilationGraphRecord = Records.getDef("CompilationGraph");
1524 if (!CompilationGraphRecord)
1525 throw std::string("Compilation graph description not found!");
1527 // Typecheck the compilation graph.
1528 TypecheckGraph(CompilationGraphRecord, tool_props);
1530 // Emit Edge# classes.
1531 EmitEdgeClasses(CompilationGraphRecord, opt_descs, O);
1533 // Emit PopulateCompilationGraph() function.
1534 EmitPopulateCompilationGraph(CompilationGraphRecord, O);
1537 } catch (std::exception& Error) {
1538 throw Error.what() + std::string(" - usually this means a syntax error.");