From 64a65ec4fd5a37505bd19e276d0c38e45f1304c8 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Mon, 22 May 2017 19:28:36 +0000
Subject: [PATCH] [DataLayout] Add llvm_unreachable to the default of a nested
 switch statement that covers all values given to it by the outer switch. NFC

llvm-svn: 303571
---
 llvm/lib/IR/DataLayout.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/IR/DataLayout.cpp b/llvm/lib/IR/DataLayout.cpp
index c117d29..d5e2964 100644
--- a/llvm/lib/IR/DataLayout.cpp
+++ b/llvm/lib/IR/DataLayout.cpp
@@ -307,7 +307,7 @@ void DataLayout::parseSpecifier(StringRef Desc) {
     case 'a': {
       AlignTypeEnum AlignType;
       switch (Specifier) {
-      default:
+      default: llvm_unreachable("Unexpected specifier!");
       case 'i': AlignType = INTEGER_ALIGN; break;
       case 'v': AlignType = VECTOR_ALIGN; break;
       case 'f': AlignType = FLOAT_ALIGN; break;
-- 
2.7.4