Fix the dangling pointer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180658 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 321894ae0034348345c4511d79b9f637d92d52ba..5d152e52325f467ee9835048d62fce1a52f1e206 100644 (file)
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1792,8 +1792,8 @@ static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) {
     return;
   }
   // Fall back to using getcwd.
-  const char *cwd = llvm::sys::Path::GetCurrentDirectory().c_str();
-  if (pwd && cwd) {
+  std::string cwd = llvm::sys::Path::GetCurrentDirectory().str();
+  if (pwd && !cwd.empty()) {
     CmdArgs.push_back("-fdebug-compilation-dir");
     CmdArgs.push_back(Args.MakeArgString(cwd));
   }