From 8c545168ee4d0b446565c655230c7be2e3d56fe9 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@intel.com>
Date: Wed, 14 Aug 2019 14:51:19 +0000
Subject: [PATCH] [X86] Add llvm_unreachable to a switch that covers all
 expected values.

llvm-svn: 368857
---
 llvm/lib/Target/X86/X86ISelDAGToDAG.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
index fcf9b41..364f54c 100644
--- a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -4201,6 +4201,7 @@ void X86DAGToDAGISel::Select(SDNode *Node) {
 
       unsigned Opc = 0;
       switch (IntNo) {
+      default: llvm_unreachable("Unexpected intrinsic!");
       case Intrinsic::x86_sse3_monitor:
         if (!Subtarget->hasSSE3())
           break;
-- 
2.7.4