X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FSupport%2FGraphWriter.cpp;h=7a9400d28afa447718ce27ae8e4e2f10820365de;hb=fe532525cc4912ec0d1b4e91fa0396122dd087b3;hp=47779eee0be7d96be7b70d2a63ca3526a53e509a;hpb=48fd5a79e023bf6a647dfabb2bbb4c2f98617b81;p=oota-llvm.git

diff --git a/lib/Support/GraphWriter.cpp b/lib/Support/GraphWriter.cpp
index 47779eee0be..7a9400d28af 100644
--- a/lib/Support/GraphWriter.cpp
+++ b/lib/Support/GraphWriter.cpp
@@ -12,11 +12,16 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/GraphWriter.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Program.h"
 #include "llvm/Config/config.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
 using namespace llvm;
 
+static cl::opt<bool> ViewBackground("view-background", cl::Hidden,
+  cl::desc("Execute graph viewer in the background. Creates tmp file litter."));
+
 std::string llvm::DOT::EscapeString(const std::string &Label) {
   std::string Str(Label);
   for (unsigned i = 0; i != Str.length(); ++i)
@@ -49,31 +54,70 @@ std::string llvm::DOT::EscapeString(const std::string &Label) {
   return Str;
 }
 
+/// \brief Get a color string for this node number. Simply round-robin selects
+/// from a reasonable number of colors.
+StringRef llvm::DOT::getColorString(unsigned ColorNumber) {
+  static const int NumColors = 20;
+  static const char* Colors[NumColors] = {
+    "aaaaaa", "aa0000", "00aa00", "aa5500", "0055ff", "aa00aa", "00aaaa",
+    "555555", "ff5555", "55ff55", "ffff55", "5555ff", "ff55ff", "55ffff",
+    "ffaaaa", "aaffaa", "ffffaa", "aaaaff", "ffaaff", "aaffff"};
+  return Colors[ColorNumber % NumColors];
+}
+
+std::string llvm::createGraphFilename(const Twine &Name, int &FD) {
+  FD = -1;
+  SmallString<128> Filename;
+  error_code EC = sys::fs::createTemporaryFile(Name, "dot", FD, Filename);
+  if (EC) {
+    errs() << "Error: " << EC.message() << "\n";
+    return "";
+  }
+
+  errs() << "Writing '" << Filename << "'... ";
+  return Filename.str();
+}
 
+// Execute the graph viewer. Return true if successful.
+static bool LLVM_ATTRIBUTE_UNUSED
+ExecGraphViewer(StringRef ExecPath, std::vector<const char*> &args,
+                StringRef Filename, bool wait, std::string &ErrMsg) {
+  if (wait) {
+    if (sys::ExecuteAndWait(ExecPath, &args[0],0,0,0,0,&ErrMsg)) {
+      errs() << "Error: " << ErrMsg << "\n";
+      return false;
+    }
+    bool Existed;
+    sys::fs::remove(Filename, Existed);
+    errs() << " done. \n";
+  }
+  else {
+    sys::ExecuteNoWait(ExecPath, &args[0],0,0,0,&ErrMsg);
+    errs() << "Remember to erase graph file: " << Filename.str() << "\n";
+  }
+  return true;
+}
 
-void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
+void llvm::DisplayGraph(StringRef FilenameRef, bool wait,
                         GraphProgram::Name program) {
+  std::string Filename = FilenameRef;
+  wait &= !ViewBackground;
   std::string ErrMsg;
 #if HAVE_GRAPHVIZ
-  sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
+  std::string Graphviz(LLVM_PATH_GRAPHVIZ);
 
   std::vector<const char*> args;
   args.push_back(Graphviz.c_str());
   args.push_back(Filename.c_str());
   args.push_back(0);
-  
-  errs() << "Running 'Graphviz' program... ";
-  if (sys::Program::ExecuteAndWait(Graphviz, &args[0],0,0,0,0,&ErrMsg))
-    errs() << "Error viewing graph " << Filename.str() << ": " << ErrMsg
-           << "\n";
-  else
-    Filename.eraseFromDisk();
 
-#elif HAVE_XDOT_PY
-  sys::Path XDotPy();
+  errs() << "Running 'Graphviz' program... ";
+  if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg))
+    return;
 
+#elif HAVE_XDOT
   std::vector<const char*> args;
-  args.push_back(LLVM_PATH_XDOT_PY);
+  args.push_back(LLVM_PATH_XDOT);
   args.push_back(Filename.c_str());
 
   switch (program) {
@@ -82,63 +126,56 @@ void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
   case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break;
   case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break;
   case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break;
-  default: errs() << "Unknown graph layout name; using default.\n";
   }
-  
+
   args.push_back(0);
 
   errs() << "Running 'xdot.py' program... ";
-  if (sys::Program::ExecuteAndWait(sys::Path(LLVM_PATH_XDOT_PY),
-                                   &args[0],0,0,0,0,&ErrMsg))
-    errs() << "Error viewing graph " << Filename.str() << ": " << ErrMsg
-           << "\n";
-  else
-    Filename.eraseFromDisk();
+  if (!ExecGraphViewer(LLVM_PATH_XDOT, args, Filename, wait, ErrMsg))
+    return;
 
 #elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
                    HAVE_TWOPI || HAVE_CIRCO))
-  sys::Path PSFilename = Filename;
-  PSFilename.appendSuffix("ps");
-
-  sys::Path prog;
+  std::string PSFilename = Filename + ".ps";
+  std::string prog;
 
   // Set default grapher
 #if HAVE_CIRCO
-  prog = sys::Path(LLVM_PATH_CIRCO);
+  prog = LLVM_PATH_CIRCO;
 #endif
 #if HAVE_TWOPI
-  prog = sys::Path(LLVM_PATH_TWOPI);
+  prog = LLVM_PATH_TWOPI;
 #endif
 #if HAVE_NEATO
-  prog = sys::Path(LLVM_PATH_NEATO);
+  prog = LLVM_PATH_NEATO;
 #endif
 #if HAVE_FDP
-  prog = sys::Path(LLVM_PATH_FDP);
+  prog = LLVM_PATH_FDP;
 #endif
 #if HAVE_DOT
-  prog = sys::Path(LLVM_PATH_DOT);
+  prog = LLVM_PATH_DOT;
 #endif
 
   // Find which program the user wants
 #if HAVE_DOT
   if (program == GraphProgram::DOT)
-    prog = sys::Path(LLVM_PATH_DOT);
+    prog = LLVM_PATH_DOT;
 #endif
 #if (HAVE_FDP)
   if (program == GraphProgram::FDP)
-    prog = sys::Path(LLVM_PATH_FDP);
+    prog = LLVM_PATH_FDP;
 #endif
 #if (HAVE_NEATO)
   if (program == GraphProgram::NEATO)
-    prog = sys::Path(LLVM_PATH_NEATO);
+    prog = LLVM_PATH_NEATO;
 #endif
 #if (HAVE_TWOPI)
   if (program == GraphProgram::TWOPI)
-    prog = sys::Path(LLVM_PATH_TWOPI);
+    prog = LLVM_PATH_TWOPI;
 #endif
 #if (HAVE_CIRCO)
   if (program == GraphProgram::CIRCO)
-    prog = sys::Path(LLVM_PATH_CIRCO);
+    prog = LLVM_PATH_CIRCO;
 #endif
 
   std::vector<const char*> args;
@@ -150,53 +187,37 @@ void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
   args.push_back("-o");
   args.push_back(PSFilename.c_str());
   args.push_back(0);
-  
-  errs() << "Running '" << prog.str() << "' program... ";
 
-  if (sys::Program::ExecuteAndWait(prog, &args[0], 0, 0, 0, 0, &ErrMsg)) {
-     errs() << "Error viewing graph " << Filename.str() << ": '"
-            << ErrMsg << "\n";
+  errs() << "Running '" << prog << "' program... ";
+
+  if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg))
     return;
-  }
-  errs() << " done. \n";
 
-  sys::Path gv(LLVM_PATH_GV);
+  std::string gv(LLVM_PATH_GV);
   args.clear();
   args.push_back(gv.c_str());
   args.push_back(PSFilename.c_str());
   args.push_back("--spartan");
   args.push_back(0);
-  
+
   ErrMsg.clear();
-  if (wait) {
-     if (sys::Program::ExecuteAndWait(gv, &args[0],0,0,0,0,&ErrMsg))
-        errs() << "Error viewing graph: " << ErrMsg << "\n";
-     Filename.eraseFromDisk();
-     PSFilename.eraseFromDisk();
-  }
-  else {
-     sys::Program::ExecuteNoWait(gv, &args[0],0,0,0,&ErrMsg);
-     errs() << "Remember to erase graph files: " << Filename.str() << " "
-            << PSFilename.str() << "\n";
-  }
+  if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg))
+    return;
+
 #elif HAVE_DOTTY
-  sys::Path dotty(LLVM_PATH_DOTTY);
+  std::string dotty(LLVM_PATH_DOTTY);
 
   std::vector<const char*> args;
   args.push_back(dotty.c_str());
   args.push_back(Filename.c_str());
   args.push_back(0);
-  
-  errs() << "Running 'dotty' program... ";
-  if (sys::Program::ExecuteAndWait(dotty, &args[0],0,0,0,0,&ErrMsg)) {
-     errs() << "Error viewing graph " << Filename.str() << ": "
-            << ErrMsg << "\n";
-  } else {
+
 // Dotty spawns another app and doesn't wait until it returns
 #if defined (__MINGW32__) || defined (_WINDOWS)
-    return;
+  wait = false;
 #endif
-    Filename.eraseFromDisk();
-  }
+  errs() << "Running 'dotty' program... ";
+  if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg))
+    return;
 #endif
 }