Index: tools/llvm-dwp/llvm-dwp.cpp
===================================================================
--- tools/llvm-dwp/llvm-dwp.cpp
+++ tools/llvm-dwp/llvm-dwp.cpp
@@ -238,7 +238,7 @@
     while (Buckets[H]) {
       assert(S != IndexEntries[Buckets[H] - 1].Signature &&
              "Duplicate type unit");
-      H = (H + ((S >> 32) & Mask) | 1) % Buckets.size();
+      H = ((H + ((S >> 32) & Mask)) | 1) % Buckets.size();
     }
     Buckets[H] = i + 1;
   }