Fix "not all control paths return a value" introduced by D142642

diff --git a/llvm/lib/Analysis/TensorSpec.cpp b/llvm/lib/Analysis/TensorSpec.cpp
index d4dc557..8dd1a05 100644 (file)
--- a/llvm/lib/Analysis/TensorSpec.cpp
+++ b/llvm/lib/Analysis/TensorSpec.cpp
@@ -119,6 +119,8 @@ std::string tensorValueToString(const char *Buffer, const TensorSpec &Spec) {
   case TensorType::Invalid:
     llvm_unreachable("invalid tensor type");
   }
+  // To appease warnings about not all control paths returning a value.
+  return "";
 }
 
 } // namespace llvm