From 9cc178726f323fb859acd7f8fc657a939fe96566 Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Mon, 14 May 2012 21:48:19 +0000
Subject: [PATCH] Fix use of uninitialized variable.

Found by GCC's maybe-uninitialized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156780 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMBaseInstrInfo.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp
index d1b481a3b90..f74b0e75cfb 100644
--- a/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -2024,7 +2024,7 @@ OptimizeCompareInstr(MachineInstr *CmpInstr, unsigned SrcReg, int CmpMask,
       ARMCC::CondCodes CC = (ARMCC::CondCodes)OperandsToUpdate[i]->getImm();
       ARMCC::CondCodes NewCC;
       switch (CC) {
-      default: break;
+      default: llvm_unreachable("only expecting less/greater comparisons here");
       case ARMCC::GE: NewCC = ARMCC::LE; break;
       case ARMCC::LT: NewCC = ARMCC::GT; break;
       case ARMCC::GT: NewCC = ARMCC::LT; break;