[libFuzzer] log less when re-loading files; fix a silly bug: when run…

…ning single files actually run all of them, not just the first one

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262754 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Fuzzer/FuzzerDriver.cpp

@@ -346,7 +346,7 @@ static int FuzzerDriver(const std::vector<std::string> &Args,
            Inputs->size(), Runs);
     for (auto &Path : *Inputs) {
       auto StartTime = system_clock::now();
-      while (Runs-- > 0)
+      for (int Iter = 0; Iter < Runs; Iter++)
         RunOneTest(&F, Path.c_str());
       auto StopTime = system_clock::now();
       auto MS = duration_cast<milliseconds>(StopTime - StartTime).count();

lib/Fuzzer/FuzzerIO.cpp

@@ -93,12 +93,14 @@ void ReadDirToVectorOfUnits(const char *Path, std::vector<Unit> *V,
                             long *Epoch, size_t MaxSize) {
   long E = Epoch ? *Epoch : 0;
   auto Files = ListFilesInDir(Path, Epoch);
+  size_t NumLoaded = 0;
   for (size_t i = 0; i < Files.size(); i++) {
     auto &X = Files[i];
     auto FilePath = DirPlusFile(Path, X);
     if (Epoch && GetEpoch(FilePath) < E) continue;
-    if ((i & (i - 1)) == 0 && i >= 1024)
-      Printf("Loaded %zd/%zd files from %s\n", i, Files.size(), Path);
+    NumLoaded++;
+    if ((NumLoaded & (NumLoaded - 1)) == 0 && NumLoaded >= 1024)
+      Printf("Loaded %zd/%zd files from %s\n", NumLoaded, Files.size(), Path);
     V->push_back(FileToVector(FilePath, MaxSize));
   }
 }