1 files changed, 5 insertions, 2 deletions
diff --git a/include/llvm/ProfileData/InstrProf.h b/include/llvm/ProfileData/InstrProf.h
index 772187f70153c..b08b78cd593cc 100644
--- a/include/llvm/ProfileData/InstrProf.h
+++ b/include/llvm/ProfileData/InstrProf.h
@@ -295,7 +295,8 @@ enum class instrprof_error {
   value_site_count_mismatch,
   compress_failed,
   uncompress_failed,
-  empty_raw_profile
+  empty_raw_profile,
+  zlib_unavailable
 };
 
 inline std::error_code make_error_code(instrprof_error E) {
@@ -858,7 +859,9 @@ enum ProfVersion {
   // In this version, profile summary data \c IndexedInstrProf::Summary is
   // stored after the profile header.
   Version4 = 4,
-  // The current version is 4.
+  // In this version, the frontend PGO stable hash algorithm defaults to V2.
+  Version5 = 5,
+  // The current version is 5.
   CurrentVersion = INSTR_PROF_INDEX_VERSION
 };
 const uint64_t Version = ProfVersion::CurrentVersion;