From da2ed951ec18ddbab8651d68c7873fe03006d442 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Tue, 26 Jul 2022 10:44:00 +0100
Subject: [PATCH] Fix MSVC "not all control paths return a value" warning. NFC

---
 llvm/utils/TableGen/DXILEmitter.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/utils/TableGen/DXILEmitter.cpp b/llvm/utils/TableGen/DXILEmitter.cpp
index 2c92912776ce..cd41fbaa6ca1 100644
--- a/llvm/utils/TableGen/DXILEmitter.cpp
+++ b/llvm/utils/TableGen/DXILEmitter.cpp
@@ -144,6 +144,7 @@ static std::string parameterKindToString(ParameterKind Kind) {
   case ParameterKind::DXIL_HANDLE:
     return "DXIL_HANDLE";
   }
+  llvm_unreachable("Unknown llvm::DXIL::ParameterKind enum");
 }
 
 static void emitDXILOpEnum(DXILOperationData &DXILOp, raw_ostream &OS) {