1 files changed, 7 insertions, 4 deletions
diff --git a/lib/Lex/PPDirectives.cpp b/lib/Lex/PPDirectives.cpp
index 322c5809cd2c7..8a56ddf236991 100644
--- a/lib/Lex/PPDirectives.cpp
+++ b/lib/Lex/PPDirectives.cpp
@@ -1976,21 +1976,24 @@ void Preprocessor::HandleIncludeDirective(SourceLocation HashLoc,
       SmallString<128> Path;
       Path.reserve(Name.size()+2);
       Path.push_back(isAngled ? '<' : '"');
+      bool isLeadingSeparator = llvm::sys::path::is_absolute(Name);
       for (auto Component : Components) {
-        Path.append(Component);
+        if (isLeadingSeparator)
+          isLeadingSeparator = false;
+        else
+          Path.append(Component);
         // Append the separator the user used, or the close quote
         Path.push_back(
           Path.size() <= Filename.size() ? Filename[Path.size()-1] :
             (isAngled ? '>' : '"'));
       }
-      auto Replacement = Path.str().str();
       // For user files and known standard headers, by default we issue a diagnostic.
       // For other system headers, we don't. They can be controlled separately.
       auto DiagId = (FileCharacter == SrcMgr::C_User || warnByDefaultOnWrongCase(Name)) ?
           diag::pp_nonportable_path : diag::pp_nonportable_system_path;
       SourceRange Range(FilenameTok.getLocation(), CharEnd);
-      Diag(FilenameTok, DiagId) << Replacement <<
-        FixItHint::CreateReplacement(Range, Replacement);
+      Diag(FilenameTok, DiagId) << Path <<
+        FixItHint::CreateReplacement(Range, Path);
     }
   }