Check in LLVM r95781.
diff --git a/lib/CompilerDriver/Action.cpp b/lib/CompilerDriver/Action.cpp
new file mode 100644
index 0000000..7bcd30a
--- /dev/null
+++ b/lib/CompilerDriver/Action.cpp
@@ -0,0 +1,94 @@
+//===--- Action.cpp - The LLVM Compiler Driver ------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Action class - implementation and auxiliary functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CompilerDriver/Action.h"
+#include "llvm/CompilerDriver/BuiltinOptions.h"
+
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/Program.h"
+#include "llvm/System/TimeValue.h"
+
+#include <stdexcept>
+#include <string>
+
+using namespace llvm;
+using namespace llvmc;
+
+namespace {
+ int ExecuteProgram(const std::string& name,
+ const StrVector& args) {
+ sys::Path prog = sys::Program::FindProgramByName(name);
+
+ if (prog.isEmpty())
+ throw std::runtime_error("Can't find program '" + name + "'");
+ if (!prog.canExecute())
+ throw std::runtime_error("Program '" + name + "' is not executable.");
+
+ // Build the command line vector and the redirects array.
+ const sys::Path* redirects[3] = {0,0,0};
+ sys::Path stdout_redirect;
+
+ std::vector<const char*> argv;
+ argv.reserve((args.size()+2));
+ argv.push_back(name.c_str());
+
+ for (StrVector::const_iterator B = args.begin(), E = args.end();
+ B!=E; ++B) {
+ if (*B == ">") {
+ ++B;
+ stdout_redirect.set(*B);
+ redirects[1] = &stdout_redirect;
+ }
+ else {
+ argv.push_back((*B).c_str());
+ }
+ }
+ argv.push_back(0); // null terminate list.
+
+ // Invoke the program.
+ return sys::Program::ExecuteAndWait(prog, &argv[0], 0, &redirects[0]);
+ }
+
+ void print_string (const std::string& str) {
+ errs() << str << ' ';
+ }
+}
+
+namespace llvmc {
+ void AppendToGlobalTimeLog(const std::string& cmd, double time);
+}
+
+int llvmc::Action::Execute() const {
+ if (DryRun || VerboseMode) {
+ errs() << Command_ << " ";
+ std::for_each(Args_.begin(), Args_.end(), print_string);
+ errs() << '\n';
+ }
+ if (!DryRun) {
+ if (Time) {
+ sys::TimeValue now = sys::TimeValue::now();
+ int ret = ExecuteProgram(Command_, Args_);
+ sys::TimeValue now2 = sys::TimeValue::now();
+ now2 -= now;
+ double elapsed = now2.seconds() + now2.microseconds() / 1000000.0;
+ AppendToGlobalTimeLog(Command_, elapsed);
+
+ return ret;
+ }
+ else {
+ return ExecuteProgram(Command_, Args_);
+ }
+ }
+
+ return 0;
+}
diff --git a/lib/CompilerDriver/BuiltinOptions.cpp b/lib/CompilerDriver/BuiltinOptions.cpp
new file mode 100644
index 0000000..d1ac8c9
--- /dev/null
+++ b/lib/CompilerDriver/BuiltinOptions.cpp
@@ -0,0 +1,59 @@
+//===--- BuiltinOptions.cpp - The LLVM Compiler Driver ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Definitions of all global command-line option variables.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CompilerDriver/BuiltinOptions.h"
+
+#ifdef ENABLE_LLVMC_DYNAMIC_PLUGINS
+#include "llvm/Support/PluginLoader.h"
+#endif
+
+namespace cl = llvm::cl;
+
+// External linkage here is intentional.
+
+cl::list<std::string> InputFilenames(cl::Positional, cl::desc("<input file>"),
+ cl::ZeroOrMore);
+cl::opt<std::string> OutputFilename("o", cl::desc("Output file name"),
+ cl::value_desc("file"), cl::Prefix);
+cl::opt<std::string> TempDirname("temp-dir", cl::desc("Temp dir name"),
+ cl::value_desc("<directory>"), cl::Prefix);
+cl::list<std::string> Languages("x",
+ cl::desc("Specify the language of the following input files"),
+ cl::ZeroOrMore);
+
+cl::opt<bool> DryRun("dry-run",
+ cl::desc("Only pretend to run commands"));
+cl::opt<bool> Time("time", cl::desc("Time individual commands"));
+cl::opt<bool> VerboseMode("v",
+ cl::desc("Enable verbose mode"));
+
+cl::opt<bool> CheckGraph("check-graph",
+ cl::desc("Check the compilation graph for errors"),
+ cl::Hidden);
+cl::opt<bool> WriteGraph("write-graph",
+ cl::desc("Write compilation-graph.dot file"),
+ cl::Hidden);
+cl::opt<bool> ViewGraph("view-graph",
+ cl::desc("Show compilation graph in GhostView"),
+ cl::Hidden);
+
+cl::opt<SaveTempsEnum::Values> SaveTemps
+("save-temps", cl::desc("Keep temporary files"),
+ cl::init(SaveTempsEnum::Unset),
+ cl::values(clEnumValN(SaveTempsEnum::Obj, "obj",
+ "Save files in the directory specified with -o"),
+ clEnumValN(SaveTempsEnum::Cwd, "cwd",
+ "Use current working directory"),
+ clEnumValN(SaveTempsEnum::Obj, "", "Same as 'cwd'"),
+ clEnumValEnd),
+ cl::ValueOptional);
diff --git a/lib/CompilerDriver/CMakeLists.txt b/lib/CompilerDriver/CMakeLists.txt
new file mode 100644
index 0000000..153dd44
--- /dev/null
+++ b/lib/CompilerDriver/CMakeLists.txt
@@ -0,0 +1,10 @@
+set(LLVM_LINK_COMPONENTS support system)
+set(LLVM_REQUIRES_EH 1)
+
+add_llvm_tool(llvmc
+ Action.cpp
+ CompilationGraph.cpp
+ llvmc.cpp
+ Plugin.cpp
+ Tool.cpp
+ )
diff --git a/lib/CompilerDriver/CompilationGraph.cpp b/lib/CompilerDriver/CompilationGraph.cpp
new file mode 100644
index 0000000..524607b
--- /dev/null
+++ b/lib/CompilerDriver/CompilationGraph.cpp
@@ -0,0 +1,535 @@
+//===--- CompilationGraph.cpp - The LLVM Compiler Driver --------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Compilation graph - implementation.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CompilerDriver/BuiltinOptions.h"
+#include "llvm/CompilerDriver/CompilationGraph.h"
+#include "llvm/CompilerDriver/Error.h"
+
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/DOTGraphTraits.h"
+#include "llvm/Support/GraphWriter.h"
+#include "llvm/Support/raw_ostream.h"
+
+#include <algorithm>
+#include <cstring>
+#include <iterator>
+#include <limits>
+#include <queue>
+#include <stdexcept>
+
+using namespace llvm;
+using namespace llvmc;
+
+namespace llvmc {
+
+ const std::string& LanguageMap::GetLanguage(const sys::Path& File) const {
+ StringRef suf = File.getSuffix();
+ LanguageMap::const_iterator Lang = this->find(suf);
+ if (Lang == this->end())
+ throw std::runtime_error("File '" + File.str() +
+ "' has unknown suffix '" + suf.str() + '\'');
+ return Lang->second;
+ }
+}
+
+namespace {
+
+ /// ChooseEdge - Return the edge with the maximum weight.
+ template <class C>
+ const Edge* ChooseEdge(const C& EdgesContainer,
+ const InputLanguagesSet& InLangs,
+ const std::string& NodeName = "root") {
+ const Edge* MaxEdge = 0;
+ unsigned MaxWeight = 0;
+ bool SingleMax = true;
+
+ for (typename C::const_iterator B = EdgesContainer.begin(),
+ E = EdgesContainer.end(); B != E; ++B) {
+ const Edge* e = B->getPtr();
+ unsigned EW = e->Weight(InLangs);
+ if (EW > MaxWeight) {
+ MaxEdge = e;
+ MaxWeight = EW;
+ SingleMax = true;
+ } else if (EW == MaxWeight) {
+ SingleMax = false;
+ }
+ }
+
+ if (!SingleMax)
+ throw std::runtime_error("Node " + NodeName +
+ ": multiple maximal outward edges found!"
+ " Most probably a specification error.");
+ if (!MaxEdge)
+ throw std::runtime_error("Node " + NodeName +
+ ": no maximal outward edge found!"
+ " Most probably a specification error.");
+ return MaxEdge;
+ }
+
+}
+
+void Node::AddEdge(Edge* Edg) {
+ // If there already was an edge between two nodes, modify it instead
+ // of adding a new edge.
+ const std::string& ToolName = Edg->ToolName();
+ for (container_type::iterator B = OutEdges.begin(), E = OutEdges.end();
+ B != E; ++B) {
+ if ((*B)->ToolName() == ToolName) {
+ llvm::IntrusiveRefCntPtr<Edge>(Edg).swap(*B);
+ return;
+ }
+ }
+ OutEdges.push_back(llvm::IntrusiveRefCntPtr<Edge>(Edg));
+}
+
+CompilationGraph::CompilationGraph() {
+ NodesMap["root"] = Node(this);
+}
+
+Node& CompilationGraph::getNode(const std::string& ToolName) {
+ nodes_map_type::iterator I = NodesMap.find(ToolName);
+ if (I == NodesMap.end())
+ throw std::runtime_error("Node " + ToolName + " is not in the graph");
+ return I->second;
+}
+
+const Node& CompilationGraph::getNode(const std::string& ToolName) const {
+ nodes_map_type::const_iterator I = NodesMap.find(ToolName);
+ if (I == NodesMap.end())
+ throw std::runtime_error("Node " + ToolName + " is not in the graph!");
+ return I->second;
+}
+
+// Find the tools list corresponding to the given language name.
+const CompilationGraph::tools_vector_type&
+CompilationGraph::getToolsVector(const std::string& LangName) const
+{
+ tools_map_type::const_iterator I = ToolsMap.find(LangName);
+ if (I == ToolsMap.end())
+ throw std::runtime_error("No tool corresponding to the language "
+ + LangName + " found");
+ return I->second;
+}
+
+void CompilationGraph::insertNode(Tool* V) {
+ if (NodesMap.count(V->Name()) == 0)
+ NodesMap[V->Name()] = Node(this, V);
+}
+
+void CompilationGraph::insertEdge(const std::string& A, Edge* Edg) {
+ Node& B = getNode(Edg->ToolName());
+ if (A == "root") {
+ const char** InLangs = B.ToolPtr->InputLanguages();
+ for (;*InLangs; ++InLangs)
+ ToolsMap[*InLangs].push_back(IntrusiveRefCntPtr<Edge>(Edg));
+ NodesMap["root"].AddEdge(Edg);
+ }
+ else {
+ Node& N = getNode(A);
+ N.AddEdge(Edg);
+ }
+ // Increase the inward edge counter.
+ B.IncrInEdges();
+}
+
+// Pass input file through the chain until we bump into a Join node or
+// a node that says that it is the last.
+void CompilationGraph::PassThroughGraph (const sys::Path& InFile,
+ const Node* StartNode,
+ const InputLanguagesSet& InLangs,
+ const sys::Path& TempDir,
+ const LanguageMap& LangMap) const {
+ sys::Path In = InFile;
+ const Node* CurNode = StartNode;
+
+ while(true) {
+ Tool* CurTool = CurNode->ToolPtr.getPtr();
+
+ if (CurTool->IsJoin()) {
+ JoinTool& JT = dynamic_cast<JoinTool&>(*CurTool);
+ JT.AddToJoinList(In);
+ break;
+ }
+
+ Action CurAction = CurTool->GenerateAction(In, CurNode->HasChildren(),
+ TempDir, InLangs, LangMap);
+
+ if (int ret = CurAction.Execute())
+ throw error_code(ret);
+
+ if (CurAction.StopCompilation())
+ return;
+
+ CurNode = &getNode(ChooseEdge(CurNode->OutEdges,
+ InLangs,
+ CurNode->Name())->ToolName());
+ In = CurAction.OutFile();
+ }
+}
+
+// Find the head of the toolchain corresponding to the given file.
+// Also, insert an input language into InLangs.
+const Node* CompilationGraph::
+FindToolChain(const sys::Path& In, const std::string* ForceLanguage,
+ InputLanguagesSet& InLangs, const LanguageMap& LangMap) const {
+
+ // Determine the input language.
+ const std::string& InLanguage =
+ ForceLanguage ? *ForceLanguage : LangMap.GetLanguage(In);
+
+ // Add the current input language to the input language set.
+ InLangs.insert(InLanguage);
+
+ // Find the toolchain for the input language.
+ const tools_vector_type& TV = getToolsVector(InLanguage);
+ if (TV.empty())
+ throw std::runtime_error("No toolchain corresponding to language "
+ + InLanguage + " found");
+ return &getNode(ChooseEdge(TV, InLangs)->ToolName());
+}
+
+// Helper function used by Build().
+// Traverses initial portions of the toolchains (up to the first Join node).
+// This function is also responsible for handling the -x option.
+void CompilationGraph::BuildInitial (InputLanguagesSet& InLangs,
+ const sys::Path& TempDir,
+ const LanguageMap& LangMap) {
+ // This is related to -x option handling.
+ cl::list<std::string>::const_iterator xIter = Languages.begin(),
+ xBegin = xIter, xEnd = Languages.end();
+ bool xEmpty = true;
+ const std::string* xLanguage = 0;
+ unsigned xPos = 0, xPosNext = 0, filePos = 0;
+
+ if (xIter != xEnd) {
+ xEmpty = false;
+ xPos = Languages.getPosition(xIter - xBegin);
+ cl::list<std::string>::const_iterator xNext = llvm::next(xIter);
+ xPosNext = (xNext == xEnd) ? std::numeric_limits<unsigned>::max()
+ : Languages.getPosition(xNext - xBegin);
+ xLanguage = (*xIter == "none") ? 0 : &(*xIter);
+ }
+
+ // For each input file:
+ for (cl::list<std::string>::const_iterator B = InputFilenames.begin(),
+ CB = B, E = InputFilenames.end(); B != E; ++B) {
+ sys::Path In = sys::Path(*B);
+
+ // Code for handling the -x option.
+ // Output: std::string* xLanguage (can be NULL).
+ if (!xEmpty) {
+ filePos = InputFilenames.getPosition(B - CB);
+
+ if (xPos < filePos) {
+ if (filePos < xPosNext) {
+ xLanguage = (*xIter == "none") ? 0 : &(*xIter);
+ }
+ else { // filePos >= xPosNext
+ // Skip xIters while filePos > xPosNext
+ while (filePos > xPosNext) {
+ ++xIter;
+ xPos = xPosNext;
+
+ cl::list<std::string>::const_iterator xNext = llvm::next(xIter);
+ if (xNext == xEnd)
+ xPosNext = std::numeric_limits<unsigned>::max();
+ else
+ xPosNext = Languages.getPosition(xNext - xBegin);
+ xLanguage = (*xIter == "none") ? 0 : &(*xIter);
+ }
+ }
+ }
+ }
+
+ // Find the toolchain corresponding to this file.
+ const Node* N = FindToolChain(In, xLanguage, InLangs, LangMap);
+ // Pass file through the chain starting at head.
+ PassThroughGraph(In, N, InLangs, TempDir, LangMap);
+ }
+}
+
+// Sort the nodes in topological order.
+void CompilationGraph::TopologicalSort(std::vector<const Node*>& Out) {
+ std::queue<const Node*> Q;
+ Q.push(&getNode("root"));
+
+ while (!Q.empty()) {
+ const Node* A = Q.front();
+ Q.pop();
+ Out.push_back(A);
+ for (Node::const_iterator EB = A->EdgesBegin(), EE = A->EdgesEnd();
+ EB != EE; ++EB) {
+ Node* B = &getNode((*EB)->ToolName());
+ B->DecrInEdges();
+ if (B->HasNoInEdges())
+ Q.push(B);
+ }
+ }
+}
+
+namespace {
+ bool NotJoinNode(const Node* N) {
+ return N->ToolPtr ? !N->ToolPtr->IsJoin() : true;
+ }
+}
+
+// Call TopologicalSort and filter the resulting list to include
+// only Join nodes.
+void CompilationGraph::
+TopologicalSortFilterJoinNodes(std::vector<const Node*>& Out) {
+ std::vector<const Node*> TopSorted;
+ TopologicalSort(TopSorted);
+ std::remove_copy_if(TopSorted.begin(), TopSorted.end(),
+ std::back_inserter(Out), NotJoinNode);
+}
+
+int CompilationGraph::Build (const sys::Path& TempDir,
+ const LanguageMap& LangMap) {
+
+ InputLanguagesSet InLangs;
+
+ // Traverse initial parts of the toolchains and fill in InLangs.
+ BuildInitial(InLangs, TempDir, LangMap);
+
+ std::vector<const Node*> JTV;
+ TopologicalSortFilterJoinNodes(JTV);
+
+ // For all join nodes in topological order:
+ for (std::vector<const Node*>::iterator B = JTV.begin(), E = JTV.end();
+ B != E; ++B) {
+
+ const Node* CurNode = *B;
+ JoinTool* JT = &dynamic_cast<JoinTool&>(*CurNode->ToolPtr.getPtr());
+
+ // Are there any files in the join list?
+ if (JT->JoinListEmpty())
+ continue;
+
+ Action CurAction = JT->GenerateAction(CurNode->HasChildren(),
+ TempDir, InLangs, LangMap);
+
+ if (int ret = CurAction.Execute())
+ throw error_code(ret);
+
+ if (CurAction.StopCompilation())
+ return 0;
+
+ const Node* NextNode = &getNode(ChooseEdge(CurNode->OutEdges, InLangs,
+ CurNode->Name())->ToolName());
+ PassThroughGraph(sys::Path(CurAction.OutFile()), NextNode,
+ InLangs, TempDir, LangMap);
+ }
+
+ return 0;
+}
+
+int CompilationGraph::CheckLanguageNames() const {
+ int ret = 0;
+ // Check that names for output and input languages on all edges do match.
+ for (const_nodes_iterator B = this->NodesMap.begin(),
+ E = this->NodesMap.end(); B != E; ++B) {
+
+ const Node & N1 = B->second;
+ if (N1.ToolPtr) {
+ for (Node::const_iterator EB = N1.EdgesBegin(), EE = N1.EdgesEnd();
+ EB != EE; ++EB) {
+ const Node& N2 = this->getNode((*EB)->ToolName());
+
+ if (!N2.ToolPtr) {
+ ++ret;
+ errs() << "Error: there is an edge from '" << N1.ToolPtr->Name()
+ << "' back to the root!\n\n";
+ continue;
+ }
+
+ const char* OutLang = N1.ToolPtr->OutputLanguage();
+ const char** InLangs = N2.ToolPtr->InputLanguages();
+ bool eq = false;
+ for (;*InLangs; ++InLangs) {
+ if (std::strcmp(OutLang, *InLangs) == 0) {
+ eq = true;
+ break;
+ }
+ }
+
+ if (!eq) {
+ ++ret;
+ errs() << "Error: Output->input language mismatch in the edge '"
+ << N1.ToolPtr->Name() << "' -> '" << N2.ToolPtr->Name()
+ << "'!\n"
+ << "Expected one of { ";
+
+ InLangs = N2.ToolPtr->InputLanguages();
+ for (;*InLangs; ++InLangs) {
+ errs() << '\'' << *InLangs << (*(InLangs+1) ? "', " : "'");
+ }
+
+ errs() << " }, but got '" << OutLang << "'!\n\n";
+ }
+
+ }
+ }
+ }
+
+ return ret;
+}
+
+int CompilationGraph::CheckMultipleDefaultEdges() const {
+ int ret = 0;
+ InputLanguagesSet Dummy;
+
+ // For all nodes, just iterate over the outgoing edges and check if there is
+ // more than one edge with maximum weight.
+ for (const_nodes_iterator B = this->NodesMap.begin(),
+ E = this->NodesMap.end(); B != E; ++B) {
+ const Node& N = B->second;
+ unsigned MaxWeight = 0;
+
+ // Ignore the root node.
+ if (!N.ToolPtr)
+ continue;
+
+ for (Node::const_iterator EB = N.EdgesBegin(), EE = N.EdgesEnd();
+ EB != EE; ++EB) {
+ unsigned EdgeWeight = (*EB)->Weight(Dummy);
+ if (EdgeWeight > MaxWeight) {
+ MaxWeight = EdgeWeight;
+ }
+ else if (EdgeWeight == MaxWeight) {
+ ++ret;
+ errs() << "Error: there are multiple maximal edges stemming from the '"
+ << N.ToolPtr->Name() << "' node!\n\n";
+ break;
+ }
+ }
+ }
+
+ return ret;
+}
+
+int CompilationGraph::CheckCycles() {
+ unsigned deleted = 0;
+ std::queue<Node*> Q;
+ Q.push(&getNode("root"));
+
+ // Try to delete all nodes that have no ingoing edges, starting from the
+ // root. If there are any nodes left after this operation, then we have a
+ // cycle. This relies on '--check-graph' not performing the topological sort.
+ while (!Q.empty()) {
+ Node* A = Q.front();
+ Q.pop();
+ ++deleted;
+
+ for (Node::iterator EB = A->EdgesBegin(), EE = A->EdgesEnd();
+ EB != EE; ++EB) {
+ Node* B = &getNode((*EB)->ToolName());
+ B->DecrInEdges();
+ if (B->HasNoInEdges())
+ Q.push(B);
+ }
+ }
+
+ if (deleted != NodesMap.size()) {
+ errs() << "Error: there are cycles in the compilation graph!\n"
+ << "Try inspecting the diagram produced by "
+ << "'llvmc --view-graph'.\n\n";
+ return 1;
+ }
+
+ return 0;
+}
+
+int CompilationGraph::Check () {
+ // We try to catch as many errors as we can in one go.
+ int ret = 0;
+
+ // Check that output/input language names match.
+ ret += this->CheckLanguageNames();
+
+ // Check for multiple default edges.
+ ret += this->CheckMultipleDefaultEdges();
+
+ // Check for cycles.
+ ret += this->CheckCycles();
+
+ return ret;
+}
+
+// Code related to graph visualization.
+
+namespace llvm {
+ template <>
+ struct DOTGraphTraits<llvmc::CompilationGraph*>
+ : public DefaultDOTGraphTraits
+ {
+ DOTGraphTraits (bool isSimple=false) : DefaultDOTGraphTraits(isSimple) {}
+
+ template<typename GraphType>
+ static std::string getNodeLabel(const Node* N, const GraphType&)
+ {
+ if (N->ToolPtr)
+ if (N->ToolPtr->IsJoin())
+ return N->Name() + "\n (join" +
+ (N->HasChildren() ? ")"
+ : std::string(": ") + N->ToolPtr->OutputLanguage() + ')');
+ else
+ return N->Name();
+ else
+ return "root";
+ }
+
+ template<typename EdgeIter>
+ static std::string getEdgeSourceLabel(const Node* N, EdgeIter I) {
+ if (N->ToolPtr) {
+ return N->ToolPtr->OutputLanguage();
+ }
+ else {
+ const char** InLangs = I->ToolPtr->InputLanguages();
+ std::string ret;
+
+ for (; *InLangs; ++InLangs) {
+ if (*(InLangs + 1)) {
+ ret += *InLangs;
+ ret += ", ";
+ }
+ else {
+ ret += *InLangs;
+ }
+ }
+
+ return ret;
+ }
+ }
+ };
+
+}
+
+void CompilationGraph::writeGraph(const std::string& OutputFilename) {
+ std::string ErrorInfo;
+ raw_fd_ostream O(OutputFilename.c_str(), ErrorInfo);
+
+ if (ErrorInfo.empty()) {
+ errs() << "Writing '"<< OutputFilename << "' file...";
+ llvm::WriteGraph(O, this);
+ errs() << "done.\n";
+ }
+ else {
+ throw std::runtime_error("Error opening file '" + OutputFilename
+ + "' for writing!");
+ }
+}
+
+void CompilationGraph::viewGraph() {
+ llvm::ViewGraph(this, "compilation-graph");
+}
diff --git a/lib/CompilerDriver/Main.cpp b/lib/CompilerDriver/Main.cpp
new file mode 100644
index 0000000..3a3487a
--- /dev/null
+++ b/lib/CompilerDriver/Main.cpp
@@ -0,0 +1,159 @@
+//===--- Main.cpp - The LLVM Compiler Driver --------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// llvmc::Main function - driver entry point.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CompilerDriver/BuiltinOptions.h"
+#include "llvm/CompilerDriver/CompilationGraph.h"
+#include "llvm/CompilerDriver/Error.h"
+#include "llvm/CompilerDriver/Plugin.h"
+
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/Path.h"
+
+#include <sstream>
+#include <stdexcept>
+#include <string>
+
+namespace cl = llvm::cl;
+namespace sys = llvm::sys;
+using namespace llvmc;
+
+namespace {
+
+ std::stringstream* GlobalTimeLog;
+
+ sys::Path getTempDir() {
+ sys::Path tempDir;
+
+ // The --temp-dir option.
+ if (!TempDirname.empty()) {
+ tempDir = TempDirname;
+ }
+ // GCC 4.5-style -save-temps handling.
+ else if (SaveTemps == SaveTempsEnum::Unset) {
+ tempDir = sys::Path::GetTemporaryDirectory();
+ return tempDir;
+ }
+ else if (SaveTemps == SaveTempsEnum::Obj && !OutputFilename.empty()) {
+ tempDir = OutputFilename;
+ tempDir = tempDir.getDirname();
+ }
+ else {
+ // SaveTemps == Cwd --> use current dir (leave tempDir empty).
+ return tempDir;
+ }
+
+ if (!tempDir.exists()) {
+ std::string ErrMsg;
+ if (tempDir.createDirectoryOnDisk(true, &ErrMsg))
+ throw std::runtime_error(ErrMsg);
+ }
+
+ return tempDir;
+ }
+
+ /// BuildTargets - A small wrapper for CompilationGraph::Build.
+ int BuildTargets(CompilationGraph& graph, const LanguageMap& langMap) {
+ int ret;
+ const sys::Path& tempDir = getTempDir();
+ bool toDelete = (SaveTemps == SaveTempsEnum::Unset);
+
+ try {
+ ret = graph.Build(tempDir, langMap);
+ }
+ catch(...) {
+ if (toDelete)
+ tempDir.eraseFromDisk(true);
+ throw;
+ }
+
+ if (toDelete)
+ tempDir.eraseFromDisk(true);
+ return ret;
+ }
+}
+
+namespace llvmc {
+
+// Used to implement -time option. External linkage is intentional.
+void AppendToGlobalTimeLog(const std::string& cmd, double time) {
+ *GlobalTimeLog << "# " << cmd << ' ' << time << '\n';
+}
+
+// Sometimes plugins want to condition on the value in argv[0].
+const char* ProgramName;
+
+int Main(int argc, char** argv) {
+ try {
+ LanguageMap langMap;
+ CompilationGraph graph;
+
+ ProgramName = argv[0];
+
+ cl::ParseCommandLineOptions
+ (argc, argv, "LLVM Compiler Driver (Work In Progress)", true);
+
+ PluginLoader Plugins;
+ Plugins.RunInitialization(langMap, graph);
+
+ if (CheckGraph) {
+ int ret = graph.Check();
+ if (!ret)
+ llvm::errs() << "check-graph: no errors found.\n";
+
+ return ret;
+ }
+
+ if (ViewGraph) {
+ graph.viewGraph();
+ if (!WriteGraph)
+ return 0;
+ }
+
+ if (WriteGraph) {
+ graph.writeGraph(OutputFilename.empty()
+ ? std::string("compilation-graph.dot")
+ : OutputFilename);
+ return 0;
+ }
+
+ if (InputFilenames.empty()) {
+ throw std::runtime_error("no input files");
+ }
+
+ if (Time) {
+ GlobalTimeLog = new std::stringstream;
+ GlobalTimeLog->precision(2);
+ }
+
+ int ret = BuildTargets(graph, langMap);
+
+ if (Time) {
+ llvm::errs() << GlobalTimeLog->str();
+ delete GlobalTimeLog;
+ }
+
+ return ret;
+ }
+ catch(llvmc::error_code& ec) {
+ return ec.code();
+ }
+ catch(const std::exception& ex) {
+ llvm::errs() << argv[0] << ": " << ex.what() << '\n';
+ }
+ catch(...) {
+ llvm::errs() << argv[0] << ": unknown error!\n";
+ }
+ return 1;
+}
+
+} // end namespace llvmc
diff --git a/lib/CompilerDriver/Makefile b/lib/CompilerDriver/Makefile
new file mode 100644
index 0000000..66c6d11
--- /dev/null
+++ b/lib/CompilerDriver/Makefile
@@ -0,0 +1,48 @@
+##===- lib/CompilerDriver/Makefile -------------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open
+# Source License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../..
+
+# We don't want this library to appear in `llvm-config --libs` output, so its
+# name doesn't start with "LLVM".
+
+ifeq ($(ENABLE_LLVMC_DYNAMIC),1)
+ LIBRARYNAME = libCompilerDriver
+ LLVMLIBS = LLVMSupport.a LLVMSystem.a
+ LOADABLE_MODULE := 1
+else
+ LIBRARYNAME = CompilerDriver
+ LINK_COMPONENTS = support system
+endif
+
+REQUIRES_EH := 1
+REQUIRES_RTTI := 1
+
+include $(LEVEL)/Makefile.common
+
+ifeq ($(ENABLE_LLVMC_DYNAMIC_PLUGINS), 1)
+ CPP.Flags += -DENABLE_LLVMC_DYNAMIC_PLUGINS
+endif
+
+# Copy libCompilerDriver to the bin dir so that llvmc can find it.
+ifeq ($(ENABLE_LLVMC_DYNAMIC),1)
+
+FullLibName = $(LIBRARYNAME)$(SHLIBEXT)
+
+all-local:: $(ToolDir)/$(FullLibName)
+
+$(ToolDir)/$(FullLibName): $(LibDir)/$(FullLibName) $(ToolDir)/.dir
+ $(Echo) Copying $(BuildMode) Shared Library $(FullLibName) to $@
+ -$(Verb) $(CP) $< $@
+
+clean-local::
+ $(Echo) Removing $(BuildMode) Shared Library $(FullLibName) \
+ from $(ToolDir)
+ -$(Verb) $(RM) -f $(ToolDir)/$(FullLibName)
+endif
diff --git a/lib/CompilerDriver/Plugin.cpp b/lib/CompilerDriver/Plugin.cpp
new file mode 100644
index 0000000..0fdfef4
--- /dev/null
+++ b/lib/CompilerDriver/Plugin.cpp
@@ -0,0 +1,78 @@
+//===--- Plugin.cpp - The LLVM Compiler Driver ------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Plugin support.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CompilerDriver/Plugin.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/System/Mutex.h"
+#include <algorithm>
+#include <vector>
+
+namespace {
+
+ // Registry::Add<> does not do lifetime management (probably issues
+ // with static constructor/destructor ordering), so we have to
+ // implement it here.
+ //
+ // All this static registration/life-before-main model seems
+ // unnecessary convoluted to me.
+
+ static bool pluginListInitialized = false;
+ typedef std::vector<const llvmc::BasePlugin*> PluginList;
+ static PluginList Plugins;
+ static llvm::ManagedStatic<llvm::sys::SmartMutex<true> > PluginMutex;
+
+ struct ByPriority {
+ bool operator()(const llvmc::BasePlugin* lhs,
+ const llvmc::BasePlugin* rhs) {
+ return lhs->Priority() < rhs->Priority();
+ }
+ };
+}
+
+namespace llvmc {
+
+ PluginLoader::PluginLoader() {
+ llvm::sys::SmartScopedLock<true> Lock(*PluginMutex);
+ if (!pluginListInitialized) {
+ for (PluginRegistry::iterator B = PluginRegistry::begin(),
+ E = PluginRegistry::end(); B != E; ++B)
+ Plugins.push_back(B->instantiate());
+ std::sort(Plugins.begin(), Plugins.end(), ByPriority());
+ }
+ pluginListInitialized = true;
+ }
+
+ PluginLoader::~PluginLoader() {
+ llvm::sys::SmartScopedLock<true> Lock(*PluginMutex);
+ if (pluginListInitialized) {
+ for (PluginList::iterator B = Plugins.begin(), E = Plugins.end();
+ B != E; ++B)
+ delete (*B);
+ }
+ pluginListInitialized = false;
+ }
+
+ void PluginLoader::RunInitialization(LanguageMap& langMap,
+ CompilationGraph& graph) const
+ {
+ llvm::sys::SmartScopedLock<true> Lock(*PluginMutex);
+ for (PluginList::iterator B = Plugins.begin(), E = Plugins.end();
+ B != E; ++B) {
+ const BasePlugin* BP = *B;
+ BP->PreprocessOptions();
+ BP->PopulateLanguageMap(langMap);
+ BP->PopulateCompilationGraph(graph);
+ }
+ }
+
+}
diff --git a/lib/CompilerDriver/Tool.cpp b/lib/CompilerDriver/Tool.cpp
new file mode 100644
index 0000000..9f4ab49
--- /dev/null
+++ b/lib/CompilerDriver/Tool.cpp
@@ -0,0 +1,73 @@
+//===--- Tool.cpp - The LLVM Compiler Driver --------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open
+// Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Tool base class - implementation details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CompilerDriver/BuiltinOptions.h"
+#include "llvm/CompilerDriver/Tool.h"
+
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/System/Path.h"
+
+using namespace llvm;
+using namespace llvmc;
+
+namespace {
+ sys::Path MakeTempFile(const sys::Path& TempDir, const std::string& BaseName,
+ const std::string& Suffix) {
+ sys::Path Out;
+
+ // Make sure we don't end up with path names like '/file.o' if the
+ // TempDir is empty.
+ if (TempDir.empty()) {
+ Out.set(BaseName);
+ }
+ else {
+ Out = TempDir;
+ Out.appendComponent(BaseName);
+ }
+ Out.appendSuffix(Suffix);
+ // NOTE: makeUnique always *creates* a unique temporary file,
+ // which is good, since there will be no races. However, some
+ // tools do not like it when the output file already exists, so
+ // they need to be placated with -f or something like that.
+ Out.makeUnique(true, NULL);
+ return Out;
+ }
+}
+
+sys::Path Tool::OutFilename(const sys::Path& In,
+ const sys::Path& TempDir,
+ bool StopCompilation,
+ const char* OutputSuffix) const {
+ sys::Path Out;
+
+ if (StopCompilation) {
+ if (!OutputFilename.empty()) {
+ Out.set(OutputFilename);
+ }
+ else if (IsJoin()) {
+ Out.set("a");
+ Out.appendSuffix(OutputSuffix);
+ }
+ else {
+ Out.set(In.getBasename());
+ Out.appendSuffix(OutputSuffix);
+ }
+ }
+ else {
+ if (IsJoin())
+ Out = MakeTempFile(TempDir, "tmp", OutputSuffix);
+ else
+ Out = MakeTempFile(TempDir, In.getBasename(), OutputSuffix);
+ }
+ return Out;
+}