From 3a48e9823e4e806ee6c08c42a1e93dd52e8cb6f7 Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Mon, 11 Apr 2016 17:27:44 +0000
Subject: add an assert for safety; NFC

llvm-svn: 265969
---
 llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'llvm/lib/Transforms/InstCombine')

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp b/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp
index 9cd408428ad..4a563b4eb75 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineShifts.cpp
@@ -61,6 +61,8 @@ static bool canEvaluateShiftedShift(unsigned FirstShiftAmt,
                                     bool IsFirstShiftLeft,
                                     Instruction *SecondShift, InstCombiner &IC,
                                     Instruction *CxtI) {
+  assert(SecondShift->isLogicalShift() && "Unexpected instruction type");
+  
   // We need constant shifts.
   auto *SecondShiftConst = dyn_cast<ConstantInt>(SecondShift->getOperand(1));
   if (!SecondShiftConst)
-- 
cgit v1.2.3