diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -5778,9 +5778,11 @@
   }
   const uint64_t Version = Record[0];
   const bool IsOldProfileFormat = Version == 1;
-  if (Version < 1 || Version > 8)
+  const uint64_t INDEX_VERSION = 8;
+  if (Version < 1 || Version > INDEX_VERSION)
     return error("Invalid summary version " + Twine(Version) +
-                 ". Version should be in the range [1-7].");
+                 ". Version should be in the range [1-" + Twine(INDEX_VERSION) +
+                 "].");
   Record.clear();
 
   // Keep around the last seen summary to be used when we see an optional