diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index 7f9c377..6ca69d6 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -433,6 +433,8 @@
   case llvm::SourceMgr::DK_Note:
     DiagID = diag::note_fe_inline_asm;
     break;
+  case llvm::SourceMgr::DK_Remark:
+    llvm_unreachable("remarks unexpected");
   }
   // If this problem has clang-level source location information, report the
   // issue in the source with a note showing the instantiated
@@ -919,6 +921,8 @@
   case llvm::SourceMgr::DK_Note:
     DiagID = diag::note_fe_inline_asm;
     break;
+  case llvm::SourceMgr::DK_Remark:
+    llvm_unreachable("remarks unexpected");
   }
 
   Diags->Report(DiagID).AddString("cannot compile inline asm");