1 files changed, 9 insertions, 7 deletions
diff --git a/tools/bugpoint/OptimizerDriver.cpp b/tools/bugpoint/OptimizerDriver.cpp
index f91f493..b2722e6 100644
--- a/tools/bugpoint/OptimizerDriver.cpp
+++ b/tools/bugpoint/OptimizerDriver.cpp
@@ -36,6 +36,8 @@
 
 using namespace llvm;
 
+#define DEBUG_TYPE "bugpoint"
+
 namespace llvm {
   extern cl::opt<std::string> OutputPrefix;
 }
@@ -194,7 +196,7 @@ bool BugDriver::runPasses(Module *Program,
   Args.push_back(InputFilename.c_str());
   for (unsigned i = 0; i < NumExtraArgs; ++i)
     Args.push_back(*ExtraArgs);
-  Args.push_back(0);
+  Args.push_back(nullptr);
 
   DEBUG(errs() << "\nAbout to run:\t";
         for (unsigned i = 0, e = Args.size()-1; i != e; ++i)
@@ -210,12 +212,12 @@ bool BugDriver::runPasses(Module *Program,
 
   // Redirect stdout and stderr to nowhere if SilencePasses is given
   StringRef Nowhere;
-  const StringRef *Redirects[3] = {0, &Nowhere, &Nowhere};
+  const StringRef *Redirects[3] = {nullptr, &Nowhere, &Nowhere};
 
   std::string ErrMsg;
-  int result = sys::ExecuteAndWait(Prog, Args.data(), 0,
-                                   (SilencePasses ? Redirects : 0), Timeout,
-                                   MemoryLimit, &ErrMsg);
+  int result = sys::ExecuteAndWait(Prog, Args.data(), nullptr,
+                                   (SilencePasses ? Redirects : nullptr),
+                                   Timeout, MemoryLimit, &ErrMsg);
 
   // If we are supposed to delete the bitcode file or if the passes crashed,
   // remove it now.  This may fail if the file was never created, but that's ok.
@@ -262,11 +264,11 @@ Module *BugDriver::runPassesOn(Module *M,
       EmitProgressBitcode(M, "pass-error",  false);
       exit(debugOptimizerCrash());
     }
-    return 0;
+    return nullptr;
   }
 
   Module *Ret = ParseInputFile(BitcodeResult, Context);
-  if (Ret == 0) {
+  if (!Ret) {
     errs() << getToolName() << ": Error reading bitcode file '"
            << BitcodeResult << "'!\n";
     exit(1);