Print out command lines used to run the programs

llvm-svn: 9562

tools/llvm-prof/ProfileInfo.h

@@ -32,6 +32,9 @@ public:
   // program if the file is invalid or broken.
   ProfileInfo(const char *ToolName, const std::string &Filename, Module &M);
 
+  unsigned getNumExecutions() const { return CommandLines.size(); }
+  const std::string &getExecution(unsigned i) const { return CommandLines[i]; }
+
   // getFunctionCounts - This method is used by consumers of function counting
   // information.  If we do not directly have function count information, we
   // compute it from other, more refined, types of profile information.

tools/llvm-prof/llvm-prof.cpp

@@ -73,11 +73,30 @@ int main(int argc, char **argv) {
   for (unsigned i = 0, e = FunctionCounts.size(); i != e; ++i)
     TotalExecutions += FunctionCounts[i].second;
   
+  std::cout << "===" << std::string(73, '-') << "===\n"
+            << "LLVM profiling output for:\n";
+  
+  for (unsigned i = 0, e = PI.getNumExecutions(); i != e; ++i) {
+    std::cout << "  ";
+    if (e != 1) std::cout << i << ". ";
+    std::cout << PI.getExecution(i) << "\n";
+  }
+  
+  std::cout << "\n===" << std::string(73, '-') << "===\n";
+  std::cout << "Function execution frequencies:\n\n";
+
   // Print out the function frequencies...
   printf(" ##   Frequency\n");
-  for (unsigned i = 0, e = FunctionCounts.size(); i != e; ++i)
+  for (unsigned i = 0, e = FunctionCounts.size(); i != e; ++i) {
+    if (FunctionCounts[i].second == 0) {
+      printf("\n  NOTE: %d function%s never executed!\n",
+             e-i, e-i-1 ? "s were" : " was");
+      break;
+    }
+
     printf("%3d. %5d/%d %s\n", i, FunctionCounts[i].second, TotalExecutions,
            FunctionCounts[i].first->getName().c_str());
+  }
 
 
   // If we have block count information, print out the LLVM module with