From 62f5a9402cfca63abab005dbb6e7d96ce6655b05 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 13 Nov 2004 20:04:38 +0000
Subject: [PATCH] Add missing check

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17706 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86ISelSimple.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index e5cf618fc10..37572aaefd4 100644
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -2925,7 +2925,7 @@ void X86ISel::emitShiftOperation(MachineBasicBlock *MBB,
     //
     if (ConstantUInt *CUI = dyn_cast<ConstantUInt>(ShiftAmount)) {
       unsigned Amount = CUI->getValue();
-      if (Amount == 1) {   // X << 1 == X+X
+      if (Amount == 1 && isLeftShift) {   // X << 1 == X+X
         BuildMI(*MBB, IP, X86::ADD32rr, 2,
                 DestReg).addReg(SrcReg).addReg(SrcReg);
         BuildMI(*MBB, IP, X86::ADC32rr, 2,
-- 
2.34.1