Rename LLVMCCConfigurationEmitter to LLVMCConfigurationEmitter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50748 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/LLVMCConfigurationEmitter.cpp b/utils/TableGen/LLVMCConfigurationEmitter.cpp
new file mode 100644
index 0000000..73390af
--- /dev/null
+++ b/utils/TableGen/LLVMCConfigurationEmitter.cpp
@@ -0,0 +1,1126 @@
+//===- LLVMCConfigurationEmitter.cpp - Generate LLVMC config --------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This tablegen backend is responsible for emitting LLVMC configuration code.
+//
+//===----------------------------------------------------------------------===//
+
+#include "LLVMCConfigurationEmitter.h"
+#include "Record.h"
+
+#include "llvm/ADT/IntrusiveRefCntPtr.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/Support/Streams.h"
+
+#include <algorithm>
+#include <cassert>
+#include <functional>
+#include <string>
+
+using namespace llvm;
+
+//namespace {
+
+//===----------------------------------------------------------------------===//
+/// Typedefs
+
+typedef std::vector<Record*> RecordVector;
+typedef std::vector<std::string> StrVector;
+
+//===----------------------------------------------------------------------===//
+/// Constants
+
+// Indentation strings
+const char * Indent1 = " ";
+const char * Indent2 = " ";
+const char * Indent3 = " ";
+const char * Indent4 = " ";
+
+// Default help string
+const char * DefaultHelpString = "NO HELP MESSAGE PROVIDED";
+
+// Name for the "sink" option
+const char * SinkOptionName = "AutoGeneratedSinkOption";
+
+//===----------------------------------------------------------------------===//
+/// Helper functions
+
+std::string InitPtrToString(Init* ptr) {
+ StringInit& val = dynamic_cast<StringInit&>(*ptr);
+ return val.getValue();
+}
+
+// Ensure that the number of args in d is <= min_arguments,
+// throw exception otherwise
+void checkNumberOfArguments (const DagInit* d, unsigned min_arguments) {
+ if (d->getNumArgs() < min_arguments)
+ throw "Property " + d->getOperator()->getAsString()
+ + " has too few arguments!";
+}
+
+
+//===----------------------------------------------------------------------===//
+/// Back-end specific code
+
+// A command-line option can have one of the following types:
+//
+// Switch - a simple switch w/o arguments, e.g. -O2
+//
+// Parameter - an option that takes one(and only one) argument, e.g. -o file,
+// --output=file
+//
+// ParameterList - same as Parameter, but more than one occurence
+// of the option is allowed, e.g. -lm -lpthread
+//
+// Prefix - argument is everything after the prefix,
+// e.g. -Wa,-foo,-bar, -DNAME=VALUE
+//
+// PrefixList - same as Prefix, but more than one option occurence is
+// allowed
+
+namespace OptionType {
+ enum OptionType { Switch, Parameter, ParameterList, Prefix, PrefixList};
+}
+
+bool IsListOptionType (OptionType::OptionType t) {
+ return (t == OptionType::ParameterList || t == OptionType::PrefixList);
+}
+
+// Code duplication here is necessary because one option can affect
+// several tools and those tools may have different actions associated
+// with this option. GlobalOptionDescriptions are used to generate
+// the option registration code, while ToolOptionDescriptions are used
+// to generate tool-specific code.
+
+// Base class for option descriptions
+
+struct OptionDescription {
+ OptionType::OptionType Type;
+ std::string Name;
+
+ OptionDescription(OptionType::OptionType t = OptionType::Switch,
+ const std::string& n = "")
+ : Type(t), Name(n)
+ {}
+
+ const char* GenTypeDeclaration() const {
+ switch (Type) {
+ case OptionType::PrefixList:
+ case OptionType::ParameterList:
+ return "cl::list<std::string>";
+ case OptionType::Switch:
+ return "cl::opt<bool>";
+ case OptionType::Parameter:
+ case OptionType::Prefix:
+ default:
+ return "cl::opt<std::string>";
+ }
+ }
+
+ std::string GenVariableName() const {
+ switch (Type) {
+ case OptionType::Switch:
+ return "AutoGeneratedSwitch" + Name;
+ case OptionType::Prefix:
+ return "AutoGeneratedPrefix" + Name;
+ case OptionType::PrefixList:
+ return "AutoGeneratedPrefixList" + Name;
+ case OptionType::Parameter:
+ return "AutoGeneratedParameter" + Name;
+ case OptionType::ParameterList:
+ default:
+ return "AutoGeneratedParameterList" + Name;
+ }
+ }
+
+};
+
+// Global option description
+
+namespace GlobalOptionDescriptionFlags {
+ enum GlobalOptionDescriptionFlags { Required = 0x1 };
+}
+
+struct GlobalOptionDescription : public OptionDescription {
+ std::string Help;
+ unsigned Flags;
+
+ // We need t provide a default constructor since
+ // StringMap can only store DefaultConstructible objects
+ GlobalOptionDescription() : OptionDescription(), Flags(0)
+ {}
+
+ GlobalOptionDescription (OptionType::OptionType t, const std::string& n)
+ : OptionDescription(t, n), Help(DefaultHelpString), Flags(0)
+ {}
+
+ bool isRequired() const {
+ return Flags & GlobalOptionDescriptionFlags::Required;
+ }
+ void setRequired() {
+ Flags |= GlobalOptionDescriptionFlags::Required;
+ }
+
+ // Merge two option descriptions
+ void Merge (const GlobalOptionDescription& other)
+ {
+ if (other.Type != Type)
+ throw "Conflicting definitions for the option " + Name + "!";
+
+ if (Help.empty() && !other.Help.empty())
+ Help = other.Help;
+ else if (!Help.empty() && !other.Help.empty())
+ cerr << "Warning: more than one help string defined for option "
+ + Name + "\n";
+
+ Flags |= other.Flags;
+ }
+};
+
+// A GlobalOptionDescription array
+// + some flags affecting generation of option declarations
+struct GlobalOptionDescriptions {
+ typedef StringMap<GlobalOptionDescription> container_type;
+ typedef container_type::const_iterator const_iterator;
+
+ // A list of GlobalOptionDescriptions
+ container_type Descriptions;
+ // Should the emitter generate a "cl::sink" option?
+ bool HasSink;
+
+ const GlobalOptionDescription& FindOption(const std::string& OptName) const {
+ const_iterator I = Descriptions.find(OptName);
+ if (I != Descriptions.end())
+ return I->second;
+ else
+ throw OptName + ": no such option!";
+ }
+
+ // Support for STL-style iteration
+ const_iterator begin() const { return Descriptions.begin(); }
+ const_iterator end() const { return Descriptions.end(); }
+};
+
+
+// Tool-local option description
+
+// Properties without arguments are implemented as flags
+namespace ToolOptionDescriptionFlags {
+ enum ToolOptionDescriptionFlags { StopCompilation = 0x1,
+ Forward = 0x2, UnpackValues = 0x4};
+}
+namespace OptionPropertyType {
+ enum OptionPropertyType { AppendCmd };
+}
+
+typedef std::pair<OptionPropertyType::OptionPropertyType, std::string>
+OptionProperty;
+typedef SmallVector<OptionProperty, 4> OptionPropertyList;
+
+struct ToolOptionDescription : public OptionDescription {
+ unsigned Flags;
+ OptionPropertyList Props;
+
+ // StringMap can only store DefaultConstructible objects
+ ToolOptionDescription() : OptionDescription(), Flags(0) {}
+
+ ToolOptionDescription (OptionType::OptionType t, const std::string& n)
+ : OptionDescription(t, n)
+ {}
+
+ // Various boolean properties
+ bool isStopCompilation() const {
+ return Flags & ToolOptionDescriptionFlags::StopCompilation;
+ }
+ void setStopCompilation() {
+ Flags |= ToolOptionDescriptionFlags::StopCompilation;
+ }
+
+ bool isForward() const {
+ return Flags & ToolOptionDescriptionFlags::Forward;
+ }
+ void setForward() {
+ Flags |= ToolOptionDescriptionFlags::Forward;
+ }
+
+ bool isUnpackValues() const {
+ return Flags & ToolOptionDescriptionFlags::UnpackValues;
+ }
+ void setUnpackValues() {
+ Flags |= ToolOptionDescriptionFlags::UnpackValues;
+ }
+
+ void AddProperty (OptionPropertyType::OptionPropertyType t,
+ const std::string& val)
+ {
+ Props.push_back(std::make_pair(t, val));
+ }
+};
+
+typedef StringMap<ToolOptionDescription> ToolOptionDescriptions;
+
+// Tool information record
+
+namespace ToolFlags {
+ enum ToolFlags { Join = 0x1, Sink = 0x2 };
+}
+
+struct ToolProperties : public RefCountedBase<ToolProperties> {
+ std::string Name;
+ StrVector CmdLine;
+ std::string InLanguage;
+ std::string OutLanguage;
+ std::string OutputSuffix;
+ unsigned Flags;
+ ToolOptionDescriptions OptDescs;
+
+ // Various boolean properties
+ void setSink() { Flags |= ToolFlags::Sink; }
+ bool isSink() const { return Flags & ToolFlags::Sink; }
+ void setJoin() { Flags |= ToolFlags::Join; }
+ bool isJoin() const { return Flags & ToolFlags::Join; }
+
+ // Default ctor here is needed because StringMap can only store
+ // DefaultConstructible objects
+ ToolProperties() {}
+ ToolProperties (const std::string& n) : Name(n) {}
+};
+
+
+// A list of Tool information records
+// IntrusiveRefCntPtrs are used because StringMap has no copy constructor
+// (and we want to avoid copying ToolProperties anyway)
+typedef std::vector<IntrusiveRefCntPtr<ToolProperties> > ToolPropertiesList;
+
+
+// Function object for iterating over a list of tool property records
+class CollectProperties {
+private:
+
+ /// Implementation details
+
+ // "Property handler" - a function that extracts information
+ // about a given tool property from its DAG representation
+ typedef void (CollectProperties::*PropertyHandler)(DagInit*);
+
+ // Map from property names -> property handlers
+ typedef StringMap<PropertyHandler> PropertyHandlerMap;
+
+ // "Option property handler" - a function that extracts information
+ // about a given option property from its DAG representation
+ typedef void (CollectProperties::*
+ OptionPropertyHandler)(DagInit*, GlobalOptionDescription &);
+
+ // Map from option property names -> option property handlers
+ typedef StringMap<OptionPropertyHandler> OptionPropertyHandlerMap;
+
+ // Static maps from strings to CollectProperties methods("handlers")
+ static PropertyHandlerMap propertyHandlers_;
+ static OptionPropertyHandlerMap optionPropertyHandlers_;
+ static bool staticMembersInitialized_;
+
+
+ /// This is where the information is stored
+
+ // Current Tool properties
+ ToolProperties& toolProps_;
+ // OptionDescriptions table(used to register options globally)
+ GlobalOptionDescriptions& optDescs_;
+
+public:
+
+ explicit CollectProperties (ToolProperties& p, GlobalOptionDescriptions& d)
+ : toolProps_(p), optDescs_(d)
+ {
+ if (!staticMembersInitialized_) {
+ // Init tool property handlers
+ propertyHandlers_["cmd_line"] = &CollectProperties::onCmdLine;
+ propertyHandlers_["in_language"] = &CollectProperties::onInLanguage;
+ propertyHandlers_["join"] = &CollectProperties::onJoin;
+ propertyHandlers_["out_language"] = &CollectProperties::onOutLanguage;
+ propertyHandlers_["output_suffix"] = &CollectProperties::onOutputSuffix;
+ propertyHandlers_["parameter_option"]
+ = &CollectProperties::onParameter;
+ propertyHandlers_["parameter_list_option"] =
+ &CollectProperties::onParameterList;
+ propertyHandlers_["prefix_option"] = &CollectProperties::onPrefix;
+ propertyHandlers_["prefix_list_option"] =
+ &CollectProperties::onPrefixList;
+ propertyHandlers_["sink"] = &CollectProperties::onSink;
+ propertyHandlers_["switch_option"] = &CollectProperties::onSwitch;
+
+ // Init option property handlers
+ optionPropertyHandlers_["append_cmd"] = &CollectProperties::onAppendCmd;
+ optionPropertyHandlers_["forward"] = &CollectProperties::onForward;
+ optionPropertyHandlers_["help"] = &CollectProperties::onHelp;
+ optionPropertyHandlers_["required"] = &CollectProperties::onRequired;
+ optionPropertyHandlers_["stop_compilation"] =
+ &CollectProperties::onStopCompilation;
+ optionPropertyHandlers_["unpack_values"] =
+ &CollectProperties::onUnpackValues;
+
+ staticMembersInitialized_ = true;
+ }
+ }
+
+ // Gets called for every tool property;
+ // Just forwards to the corresponding property handler.
+ void operator() (Init* i) {
+ DagInit& d = dynamic_cast<DagInit&>(*i);
+ const std::string& property_name = d.getOperator()->getAsString();
+ PropertyHandlerMap::iterator method
+ = propertyHandlers_.find(property_name);
+
+ if (method != propertyHandlers_.end()) {
+ PropertyHandler h = method->second;
+ (this->*h)(&d);
+ }
+ else {
+ throw "Unknown tool property: " + property_name + "!";
+ }
+ }
+
+private:
+
+ /// Property handlers --
+ /// Functions that extract information about tool properties from
+ /// DAG representation.
+
+ void onCmdLine (DagInit* d) {
+ checkNumberOfArguments(d, 1);
+ SplitString(InitPtrToString(d->getArg(0)), toolProps_.CmdLine);
+ if (toolProps_.CmdLine.empty())
+ throw "Tool " + toolProps_.Name + " has empty command line!";
+ }
+
+ void onInLanguage (DagInit* d) {
+ checkNumberOfArguments(d, 1);
+ toolProps_.InLanguage = InitPtrToString(d->getArg(0));
+ }
+
+ void onJoin (DagInit* d) {
+ checkNumberOfArguments(d, 0);
+ toolProps_.setJoin();
+ }
+
+ void onOutLanguage (DagInit* d) {
+ checkNumberOfArguments(d, 1);
+ toolProps_.OutLanguage = InitPtrToString(d->getArg(0));
+ }
+
+ void onOutputSuffix (DagInit* d) {
+ checkNumberOfArguments(d, 1);
+ toolProps_.OutputSuffix = InitPtrToString(d->getArg(0));
+ }
+
+ void onSink (DagInit* d) {
+ checkNumberOfArguments(d, 0);
+ optDescs_.HasSink = true;
+ toolProps_.setSink();
+ }
+
+ void onSwitch (DagInit* d) { addOption(d, OptionType::Switch); }
+ void onParameter (DagInit* d) { addOption(d, OptionType::Parameter); }
+ void onParameterList (DagInit* d) { addOption(d, OptionType::ParameterList); }
+ void onPrefix (DagInit* d) { addOption(d, OptionType::Prefix); }
+ void onPrefixList (DagInit* d) { addOption(d, OptionType::PrefixList); }
+
+ /// Option property handlers --
+ /// Methods that handle properties that are common for all types of
+ /// options (like append_cmd, stop_compilation)
+
+ void onAppendCmd (DagInit* d, GlobalOptionDescription& o) {
+ checkNumberOfArguments(d, 1);
+ std::string const& cmd = InitPtrToString(d->getArg(0));
+
+ toolProps_.OptDescs[o.Name].AddProperty(OptionPropertyType::AppendCmd, cmd);
+ }
+
+ void onForward (DagInit* d, GlobalOptionDescription& o) {
+ checkNumberOfArguments(d, 0);
+ toolProps_.OptDescs[o.Name].setForward();
+ }
+
+ void onHelp (DagInit* d, GlobalOptionDescription& o) {
+ checkNumberOfArguments(d, 1);
+ const std::string& help_message = InitPtrToString(d->getArg(0));
+
+ o.Help = help_message;
+ }
+
+ void onRequired (DagInit* d, GlobalOptionDescription& o) {
+ checkNumberOfArguments(d, 0);
+ o.setRequired();
+ }
+
+ void onStopCompilation (DagInit* d, GlobalOptionDescription& o) {
+ checkNumberOfArguments(d, 0);
+ if (o.Type != OptionType::Switch)
+ throw std::string("Only options of type Switch can stop compilation!");
+ toolProps_.OptDescs[o.Name].setStopCompilation();
+ }
+
+ void onUnpackValues (DagInit* d, GlobalOptionDescription& o) {
+ checkNumberOfArguments(d, 0);
+ toolProps_.OptDescs[o.Name].setUnpackValues();
+ }
+
+ /// Helper functions
+
+ // Add an option of type t
+ void addOption (DagInit* d, OptionType::OptionType t) {
+ checkNumberOfArguments(d, 2);
+ const std::string& name = InitPtrToString(d->getArg(0));
+
+ GlobalOptionDescription o(t, name);
+ toolProps_.OptDescs[name].Type = t;
+ toolProps_.OptDescs[name].Name = name;
+ processOptionProperties(d, o);
+ insertDescription(o);
+ }
+
+ // Insert new GlobalOptionDescription into GlobalOptionDescriptions list
+ void insertDescription (const GlobalOptionDescription& o)
+ {
+ if (optDescs_.Descriptions.count(o.Name)) {
+ GlobalOptionDescription& D = optDescs_.Descriptions[o.Name];
+ D.Merge(o);
+ }
+ else {
+ optDescs_.Descriptions[o.Name] = o;
+ }
+ }
+
+ // Go through the list of option properties and call a corresponding
+ // handler for each.
+ //
+ // Parameters:
+ // name - option name
+ // d - option property list
+ void processOptionProperties (DagInit* d, GlobalOptionDescription& o) {
+ // First argument is option name
+ checkNumberOfArguments(d, 2);
+
+ for (unsigned B = 1, E = d->getNumArgs(); B!=E; ++B) {
+ DagInit& option_property
+ = dynamic_cast<DagInit&>(*d->getArg(B));
+ const std::string& option_property_name
+ = option_property.getOperator()->getAsString();
+ OptionPropertyHandlerMap::iterator method
+ = optionPropertyHandlers_.find(option_property_name);
+
+ if (method != optionPropertyHandlers_.end()) {
+ OptionPropertyHandler h = method->second;
+ (this->*h)(&option_property, o);
+ }
+ else {
+ throw "Unknown option property: " + option_property_name + "!";
+ }
+ }
+ }
+};
+
+// Static members of CollectProperties
+CollectProperties::PropertyHandlerMap
+CollectProperties::propertyHandlers_;
+
+CollectProperties::OptionPropertyHandlerMap
+CollectProperties::optionPropertyHandlers_;
+
+bool CollectProperties::staticMembersInitialized_ = false;
+
+
+// Gather information from the parsed TableGen data
+// (Basically a wrapper for CollectProperties)
+void CollectToolProperties (RecordVector::const_iterator B,
+ RecordVector::const_iterator E,
+ ToolPropertiesList& TPList,
+ GlobalOptionDescriptions& OptDescs)
+{
+ // Iterate over a properties list of every Tool definition
+ for (;B!=E;++B) {
+ RecordVector::value_type T = *B;
+ ListInit* PropList = T->getValueAsListInit("properties");
+
+ IntrusiveRefCntPtr<ToolProperties>
+ ToolProps(new ToolProperties(T->getName()));
+
+ std::for_each(PropList->begin(), PropList->end(),
+ CollectProperties(*ToolProps, OptDescs));
+ TPList.push_back(ToolProps);
+ }
+}
+
+// Used by EmitGenerateActionMethod
+void EmitOptionPropertyHandlingCode (const ToolProperties& P,
+ const ToolOptionDescription& D,
+ std::ostream& O)
+{
+ // if clause
+ O << Indent2 << "if (";
+ if (D.Type == OptionType::Switch)
+ O << D.GenVariableName();
+ else
+ O << '!' << D.GenVariableName() << ".empty()";
+
+ O <<") {\n";
+
+ // Handle option properties that take an argument
+ for (OptionPropertyList::const_iterator B = D.Props.begin(),
+ E = D.Props.end(); B!=E; ++B) {
+ const OptionProperty& val = *B;
+
+ switch (val.first) {
+ // (append_cmd cmd) property
+ case OptionPropertyType::AppendCmd:
+ O << Indent3 << "vec.push_back(\"" << val.second << "\");\n";
+ break;
+ // Other properties with argument
+ default:
+ break;
+ }
+ }
+
+ // Handle flags
+
+ // (forward) property
+ if (D.isForward()) {
+ switch (D.Type) {
+ case OptionType::Switch:
+ O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
+ break;
+ case OptionType::Parameter:
+ O << Indent3 << "vec.push_back(\"-" << D.Name << "\");\n";
+ O << Indent3 << "vec.push_back(" << D.GenVariableName() << ");\n";
+ break;
+ case OptionType::Prefix:
+ O << Indent3 << "vec.push_back(\"-" << D.Name << "\" + "
+ << D.GenVariableName() << ");\n";
+ break;
+ case OptionType::PrefixList:
+ O << Indent3 << "for (" << D.GenTypeDeclaration()
+ << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
+ << Indent3 << "E = " << D.GenVariableName() << ".end(); B != E; ++B)\n"
+ << Indent4 << "vec.push_back(\"-" << D.Name << "\" + "
+ << "*B);\n";
+ break;
+ case OptionType::ParameterList:
+ O << Indent3 << "for (" << D.GenTypeDeclaration()
+ << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
+ << Indent3 << "E = " << D.GenVariableName()
+ << ".end() ; B != E; ++B) {\n"
+ << Indent4 << "vec.push_back(\"-" << D.Name << "\");\n"
+ << Indent4 << "vec.push_back(*B);\n"
+ << Indent3 << "}\n";
+ break;
+ }
+ }
+
+ // (unpack_values) property
+ if (D.isUnpackValues()) {
+ if (IsListOptionType(D.Type)) {
+ O << Indent3 << "for (" << D.GenTypeDeclaration()
+ << "::iterator B = " << D.GenVariableName() << ".begin(),\n"
+ << Indent3 << "E = " << D.GenVariableName()
+ << ".end(); B != E; ++B)\n"
+ << Indent4 << "Tool::UnpackValues(*B, vec);\n";
+ }
+ else if (D.Type == OptionType::Prefix || D.Type == OptionType::Parameter){
+ O << Indent3 << "Tool::UnpackValues("
+ << D.GenVariableName() << ", vec);\n";
+ }
+ else {
+ // TOFIX: move this to the type-checking phase
+ throw std::string("Switches can't have unpack_values property!");
+ }
+ }
+
+ // close if clause
+ O << Indent2 << "}\n";
+}
+
+// Emite one of two versions of GenerateAction method
+void EmitGenerateActionMethod (const ToolProperties& P, int V, std::ostream& O)
+{
+ assert(V==1 || V==2);
+ if (V==1)
+ O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n";
+ else
+ O << Indent1 << "Action GenerateAction(const sys::Path& inFile,\n";
+
+ O << Indent2 << "const sys::Path& outFile) const\n"
+ << Indent1 << "{\n"
+ << Indent2 << "std::vector<std::string> vec;\n";
+
+ // Parse CmdLine tool property
+ if(P.CmdLine.empty())
+ throw "Tool " + P.Name + " has empty command line!";
+
+ StrVector::const_iterator I = P.CmdLine.begin();
+ ++I;
+ for (StrVector::const_iterator E = P.CmdLine.end(); I != E; ++I) {
+ const std::string& cmd = *I;
+ O << Indent2;
+ if (cmd == "$INFILE") {
+ if (V==1)
+ O << "for (PathVector::const_iterator B = inFiles.begin()"
+ << ", E = inFiles.end();\n"
+ << Indent2 << "B != E; ++B)\n"
+ << Indent3 << "vec.push_back(B->toString());\n";
+ else
+ O << "vec.push_back(inFile.toString());\n";
+ }
+ else if (cmd == "$OUTFILE") {
+ O << "vec.push_back(outFile.toString());\n";
+ }
+ else {
+ O << "vec.push_back(\"" << cmd << "\");\n";
+ }
+ }
+
+ // For every understood option, emit handling code
+ for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
+ E = P.OptDescs.end(); B != E; ++B) {
+ const ToolOptionDescription& val = B->second;
+ EmitOptionPropertyHandlingCode(P, val, O);
+ }
+
+ // Handle Sink property
+ if (P.isSink()) {
+ O << Indent2 << "if (!" << SinkOptionName << ".empty()) {\n"
+ << Indent3 << "vec.insert(vec.end(), "
+ << SinkOptionName << ".begin(), " << SinkOptionName << ".end());\n"
+ << Indent2 << "}\n";
+ }
+
+ O << Indent2 << "return Action(\"" << P.CmdLine.at(0) << "\", vec);\n"
+ << Indent1 << "}\n\n";
+}
+
+// Emit GenerateAction methods for Tool classes
+void EmitGenerateActionMethods (const ToolProperties& P, std::ostream& O) {
+
+ if (!P.isJoin())
+ O << Indent1 << "Action GenerateAction(const PathVector& inFiles,\n"
+ << Indent2 << "const llvm::sys::Path& outFile) const\n"
+ << Indent1 << "{\n"
+ << Indent2 << "throw std::runtime_error(\"" << P.Name
+ << " is not a Join tool!\");\n"
+ << Indent1 << "}\n\n";
+ else
+ EmitGenerateActionMethod(P, 1, O);
+
+ EmitGenerateActionMethod(P, 2, O);
+}
+
+// Emit IsLast() method for Tool classes
+void EmitIsLastMethod (const ToolProperties& P, std::ostream& O) {
+ O << Indent1 << "bool IsLast() const {\n"
+ << Indent2 << "bool last = false;\n";
+
+ for (ToolOptionDescriptions::const_iterator B = P.OptDescs.begin(),
+ E = P.OptDescs.end(); B != E; ++B) {
+ const ToolOptionDescription& val = B->second;
+
+ if (val.isStopCompilation())
+ O << Indent2
+ << "if (" << val.GenVariableName()
+ << ")\n" << Indent3 << "last = true;\n";
+ }
+
+ O << Indent2 << "return last;\n"
+ << Indent1 << "}\n\n";
+}
+
+// Emit static [Input,Output]Language() methods for Tool classes
+void EmitInOutLanguageMethods (const ToolProperties& P, std::ostream& O) {
+ O << Indent1 << "const char* InputLanguage() const {\n"
+ << Indent2 << "return \"" << P.InLanguage << "\";\n"
+ << Indent1 << "}\n\n";
+
+ O << Indent1 << "const char* OutputLanguage() const {\n"
+ << Indent2 << "return \"" << P.OutLanguage << "\";\n"
+ << Indent1 << "}\n\n";
+}
+
+// Emit static [Input,Output]Language() methods for Tool classes
+void EmitOutputSuffixMethod (const ToolProperties& P, std::ostream& O) {
+ O << Indent1 << "const char* OutputSuffix() const {\n"
+ << Indent2 << "return \"" << P.OutputSuffix << "\";\n"
+ << Indent1 << "}\n\n";
+}
+
+// Emit static Name() method for Tool classes
+void EmitNameMethod (const ToolProperties& P, std::ostream& O) {
+ O << Indent1 << "const char* Name() const {\n"
+ << Indent2 << "return \"" << P.Name << "\";\n"
+ << Indent1 << "}\n\n";
+}
+
+// Emit static Name() method for Tool classes
+void EmitIsJoinMethod (const ToolProperties& P, std::ostream& O) {
+ O << Indent1 << "bool IsJoin() const {\n";
+ if (P.isJoin())
+ O << Indent2 << "return true;\n";
+ else
+ O << Indent2 << "return false;\n";
+ O << Indent1 << "}\n\n";
+}
+
+// Emit a Tool class definition
+void EmitToolClassDefinition (const ToolProperties& P, std::ostream& O) {
+
+ if(P.Name == "root")
+ return;
+
+ // Header
+ O << "class " << P.Name << " : public ";
+ if (P.isJoin())
+ O << "JoinTool";
+ else
+ O << "Tool";
+ O << " {\npublic:\n";
+
+ EmitNameMethod(P, O);
+ EmitInOutLanguageMethods(P, O);
+ EmitOutputSuffixMethod(P, O);
+ EmitIsJoinMethod(P, O);
+ EmitGenerateActionMethods(P, O);
+ EmitIsLastMethod(P, O);
+
+ // Close class definition
+ O << "};\n\n";
+}
+
+// Iterate over a list of option descriptions and emit registration code
+void EmitOptionDescriptions (const GlobalOptionDescriptions& descs,
+ std::ostream& O)
+{
+ // Emit static cl::Option variables
+ for (GlobalOptionDescriptions::const_iterator B = descs.begin(),
+ E = descs.end(); B!=E; ++B) {
+ const GlobalOptionDescription& val = B->second;
+
+ O << val.GenTypeDeclaration() << ' '
+ << val.GenVariableName()
+ << "(\"" << val.Name << '\"';
+
+ if (val.Type == OptionType::Prefix || val.Type == OptionType::PrefixList)
+ O << ", cl::Prefix";
+
+ if (val.isRequired()) {
+ switch (val.Type) {
+ case OptionType::PrefixList:
+ case OptionType::ParameterList:
+ O << ", cl::OneOrMore";
+ break;
+ default:
+ O << ", cl::Required";
+ }
+ }
+
+ O << ", cl::desc(\"" << val.Help << "\"));\n";
+ }
+
+ if (descs.HasSink)
+ O << "cl::list<std::string> " << SinkOptionName << "(cl::Sink);\n";
+
+ O << '\n';
+}
+
+void EmitPopulateLanguageMap (const RecordKeeper& Records, std::ostream& O)
+{
+ // Get the relevant field out of RecordKeeper
+ Record* LangMapRecord = Records.getDef("LanguageMap");
+ if (!LangMapRecord)
+ throw std::string("Language map definition not found!");
+
+ ListInit* LangsToSuffixesList = LangMapRecord->getValueAsListInit("map");
+ if (!LangsToSuffixesList)
+ throw std::string("Error in the language map definition!");
+
+ // Generate code
+ O << "void llvmc::PopulateLanguageMap(LanguageMap& language_map) {\n";
+
+ for (unsigned i = 0; i < LangsToSuffixesList->size(); ++i) {
+ Record* LangToSuffixes = LangsToSuffixesList->getElementAsRecord(i);
+
+ const std::string& Lang = LangToSuffixes->getValueAsString("lang");
+ const ListInit* Suffixes = LangToSuffixes->getValueAsListInit("suffixes");
+
+ for (unsigned i = 0; i < Suffixes->size(); ++i)
+ O << Indent1 << "language_map[\""
+ << InitPtrToString(Suffixes->getElement(i))
+ << "\"] = \"" << Lang << "\";\n";
+ }
+
+ O << "}\n\n";
+}
+
+// Fills in two tables that map tool names to (input, output) languages.
+// Used by the typechecker.
+void FillInToolToLang (const ToolPropertiesList& TPList,
+ StringMap<std::string>& ToolToInLang,
+ StringMap<std::string>& ToolToOutLang) {
+ for (ToolPropertiesList::const_iterator B = TPList.begin(), E = TPList.end();
+ B != E; ++B) {
+ const ToolProperties& P = *(*B);
+ ToolToInLang[P.Name] = P.InLanguage;
+ ToolToOutLang[P.Name] = P.OutLanguage;
+ }
+}
+
+// Check that all output and input language names match.
+// TOFIX: check for cycles.
+// TOFIX: check for multiple default edges.
+void TypecheckGraph (Record* CompilationGraph,
+ const ToolPropertiesList& TPList) {
+ StringMap<std::string> ToolToInLang;
+ StringMap<std::string> ToolToOutLang;
+
+ FillInToolToLang(TPList, ToolToInLang, ToolToOutLang);
+ ListInit* edges = CompilationGraph->getValueAsListInit("edges");
+ StringMap<std::string>::iterator IAE = ToolToInLang.end();
+ StringMap<std::string>::iterator IBE = ToolToOutLang.end();
+
+ for (unsigned i = 0; i < edges->size(); ++i) {
+ Record* Edge = edges->getElementAsRecord(i);
+ Record* A = Edge->getValueAsDef("a");
+ Record* B = Edge->getValueAsDef("b");
+ StringMap<std::string>::iterator IA = ToolToOutLang.find(A->getName());
+ StringMap<std::string>::iterator IB = ToolToInLang.find(B->getName());
+ if(IA == IAE)
+ throw A->getName() + ": no such tool!";
+ if(IB == IBE)
+ throw B->getName() + ": no such tool!";
+ if(A->getName() != "root" && IA->second != IB->second)
+ throw "Edge " + A->getName() + "->" + B->getName()
+ + ": output->input language mismatch";
+ if(B->getName() == "root")
+ throw std::string("Edges back to the root are not allowed!");
+ }
+}
+
+// Helper function used by EmitEdgePropertyTest.
+void EmitEdgePropertyTest1Arg(const DagInit& Prop,
+ const GlobalOptionDescriptions& OptDescs,
+ std::ostream& O) {
+ checkNumberOfArguments(&Prop, 1);
+ const std::string& OptName = InitPtrToString(Prop.getArg(0));
+ const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
+ if (OptDesc.Type != OptionType::Switch)
+ throw OptName + ": incorrect option type!";
+ O << OptDesc.GenVariableName();
+}
+
+// Helper function used by EmitEdgePropertyTest.
+void EmitEdgePropertyTest2Args(const std::string& PropName,
+ const DagInit& Prop,
+ const GlobalOptionDescriptions& OptDescs,
+ std::ostream& O) {
+ checkNumberOfArguments(&Prop, 2);
+ const std::string& OptName = InitPtrToString(Prop.getArg(0));
+ const std::string& OptArg = InitPtrToString(Prop.getArg(1));
+ const GlobalOptionDescription& OptDesc = OptDescs.FindOption(OptName);
+
+ if (PropName == "parameter_equals") {
+ if (OptDesc.Type != OptionType::Parameter
+ && OptDesc.Type != OptionType::Prefix)
+ throw OptName + ": incorrect option type!";
+ O << OptDesc.GenVariableName() << " == \"" << OptArg << "\"";
+ }
+ else if (PropName == "element_in_list") {
+ if (OptDesc.Type != OptionType::ParameterList
+ && OptDesc.Type != OptionType::PrefixList)
+ throw OptName + ": incorrect option type!";
+ const std::string& VarName = OptDesc.GenVariableName();
+ O << "std::find(" << VarName << ".begin(),\n"
+ << Indent3 << VarName << ".end(), \""
+ << OptArg << "\") != " << VarName << ".end()";
+ }
+ else
+ throw PropName + ": unknown edge property!";
+}
+
+// Helper function used by EmitEdgeClass.
+void EmitEdgePropertyTest(const std::string& PropName,
+ const DagInit& Prop,
+ const GlobalOptionDescriptions& OptDescs,
+ std::ostream& O) {
+ if (PropName == "switch_on")
+ EmitEdgePropertyTest1Arg(Prop, OptDescs, O);
+ else
+ EmitEdgePropertyTest2Args(PropName, Prop, OptDescs, O);
+}
+
+// Emit a single Edge* class.
+void EmitEdgeClass(unsigned N, const std::string& Target,
+ ListInit* Props, const GlobalOptionDescriptions& OptDescs,
+ std::ostream& O) {
+ bool IsDefault = false;
+
+ // Class constructor.
+ O << "class Edge" << N << ": public Edge {\n"
+ << "public:\n"
+ << Indent1 << "Edge" << N << "() : Edge(\"" << Target
+ << "\") {}\n\n"
+
+ // Function isEnabled().
+ << Indent1 << "bool isEnabled() const {\n"
+ << Indent2 << "bool ret = false;\n";
+
+ for (size_t i = 0, PropsSize = Props->size(); i < PropsSize; ++i) {
+ const DagInit& Prop = dynamic_cast<DagInit&>(*Props->getElement(i));
+ const std::string& PropName = Prop.getOperator()->getAsString();
+
+ if (PropName == "default")
+ IsDefault = true;
+
+ O << Indent2 << "if (ret || (";
+ if (PropName == "and") {
+ O << '(';
+ for (unsigned j = 0, NumArgs = Prop.getNumArgs(); j < NumArgs; ++j) {
+ const DagInit& InnerProp = dynamic_cast<DagInit&>(*Prop.getArg(j));
+ const std::string& InnerPropName =
+ InnerProp.getOperator()->getAsString();
+ EmitEdgePropertyTest(InnerPropName, InnerProp, OptDescs, O);
+ if (j != NumArgs - 1)
+ O << ")\n" << Indent3 << " && (";
+ else
+ O << ')';
+ }
+ }
+ else {
+ EmitEdgePropertyTest(PropName, Prop, OptDescs, O);
+ }
+ O << "))\n" << Indent3 << "ret = true;\n";
+ }
+
+ O << Indent2 << "return ret;\n"
+ << Indent1 << "};\n\n"
+
+ // Function isDefault().
+ << Indent1 << "bool isDefault() const { return ";
+ if (IsDefault)
+ O << "true";
+ else
+ O << "false";
+ O <<"; }\n};\n\n";
+}
+
+// Emit Edge* classes that represent graph edges.
+void EmitEdgeClasses (Record* CompilationGraph,
+ const GlobalOptionDescriptions& OptDescs,
+ std::ostream& O) {
+ ListInit* edges = CompilationGraph->getValueAsListInit("edges");
+
+ for (unsigned i = 0; i < edges->size(); ++i) {
+ Record* Edge = edges->getElementAsRecord(i);
+ Record* B = Edge->getValueAsDef("b");
+ ListInit* Props = Edge->getValueAsListInit("props");
+
+ if (Props->empty())
+ continue;
+
+ EmitEdgeClass(i, B->getName(), Props, OptDescs, O);
+ }
+}
+
+void EmitPopulateCompilationGraph (Record* CompilationGraph,
+ std::ostream& O)
+{
+ ListInit* edges = CompilationGraph->getValueAsListInit("edges");
+
+ // Generate code
+ O << "void llvmc::PopulateCompilationGraph(CompilationGraph& G) {\n"
+ << Indent1 << "PopulateLanguageMap(G.ExtsToLangs);\n\n";
+
+ // Insert vertices
+
+ RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
+ if (Tools.empty())
+ throw std::string("No tool definitions found!");
+
+ for (RecordVector::iterator B = Tools.begin(), E = Tools.end(); B != E; ++B) {
+ const std::string& Name = (*B)->getName();
+ if(Name != "root")
+ O << Indent1 << "G.insertNode(new "
+ << Name << "());\n";
+ }
+
+ O << '\n';
+
+ // Insert edges
+ for (unsigned i = 0; i < edges->size(); ++i) {
+ Record* Edge = edges->getElementAsRecord(i);
+ Record* A = Edge->getValueAsDef("a");
+ Record* B = Edge->getValueAsDef("b");
+ ListInit* Props = Edge->getValueAsListInit("props");
+
+ O << Indent1 << "G.insertEdge(\"" << A->getName() << "\", ";
+
+ if (Props->empty())
+ O << "new SimpleEdge(\"" << B->getName() << "\")";
+ else
+ O << "new Edge" << i << "()";
+
+ O << ");\n";
+ }
+
+ O << "}\n\n";
+}
+
+
+// End of anonymous namespace
+//}
+
+// Back-end entry point
+void LLVMCCConfigurationEmitter::run (std::ostream &O) {
+ // Emit file header
+ EmitSourceFileHeader("LLVMC Configuration Library", O);
+
+ // Get a list of all defined Tools
+ RecordVector Tools = Records.getAllDerivedDefinitions("Tool");
+ if (Tools.empty())
+ throw std::string("No tool definitions found!");
+
+ // Gather information from the Tool descriptions
+ ToolPropertiesList tool_props;
+ GlobalOptionDescriptions opt_descs;
+ CollectToolProperties(Tools.begin(), Tools.end(), tool_props, opt_descs);
+
+ // Emit global option registration code
+ EmitOptionDescriptions(opt_descs, O);
+
+ // Emit PopulateLanguageMap function
+ // (a language map maps from file extensions to language names)
+ EmitPopulateLanguageMap(Records, O);
+
+ // Emit Tool classes
+ for (ToolPropertiesList::const_iterator B = tool_props.begin(),
+ E = tool_props.end(); B!=E; ++B)
+ EmitToolClassDefinition(*(*B), O);
+
+ Record* CompilationGraphRecord = Records.getDef("CompilationGraph");
+ if (!CompilationGraphRecord)
+ throw std::string("Compilation graph description not found!");
+
+ // Typecheck the compilation graph.
+ TypecheckGraph(CompilationGraphRecord, tool_props);
+
+ // Emit Edge* classes.
+ EmitEdgeClasses(CompilationGraphRecord, opt_descs, O);
+
+ // Emit PopulateCompilationGraph function
+ EmitPopulateCompilationGraph(CompilationGraphRecord, O);
+
+ // EOF
+}