1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/Basic/SourceLocation.cpp b/clang/lib/Basic/SourceLocation.cpp
index 8cb0899..2ff1797 100644
--- a/clang/lib/Basic/SourceLocation.cpp
+++ b/clang/lib/Basic/SourceLocation.cpp
@@ -14,6 +14,7 @@
 #include "clang/Basic/LLVM.h"
 #include "clang/Basic/PrettyStackTrace.h"
 #include "clang/Basic/SourceManager.h"
+#include "llvm/ADT/DenseMapInfo.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/MemoryBuffer.h"
@@ -40,6 +41,10 @@ void PrettyStackTraceLoc::print(raw_ostream &OS) const {
 // SourceLocation
 //===----------------------------------------------------------------------===//
 
+unsigned SourceLocation::getHashValue() const {
+  return llvm::DenseMapInfo<unsigned>::getHashValue(ID);
+}
+
 void SourceLocation::print(raw_ostream &OS, const SourceManager &SM)const{
   if (!isValid()) {
     OS << "<invalid loc>";