From aa1d330b22c1d02796bfe95ba1de539374804422 Mon Sep 17 00:00:00 2001
From: Andrew Fish <afish@apple.com>
Date: Thu, 3 Aug 2017 15:04:38 +0800
Subject: [PATCH] DuetPkg: Fix Xcode 9 Beta treating 32-bit left shift as
 undefined

Bug: https://bugzilla.tianocore.org/show_bug.cgi?id=635

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Andrew Fish <afish@apple.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
---
 DuetPkg/EfiLdr/TianoDecompress.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/DuetPkg/EfiLdr/TianoDecompress.c b/DuetPkg/EfiLdr/TianoDecompress.c
index b504e8e1d4..695f5162fc 100644
--- a/DuetPkg/EfiLdr/TianoDecompress.c
+++ b/DuetPkg/EfiLdr/TianoDecompress.c
@@ -93,11 +93,11 @@ Returns: (VOID)
 
 --*/
 {
-  Sd->mBitBuf = (UINT32) (Sd->mBitBuf << NumOfBits);
+  Sd->mBitBuf = (UINT32) LShiftU64 (((UINT64)Sd->mBitBuf), NumOfBits);
 
   while (NumOfBits > Sd->mBitCount) {
-
-    Sd->mBitBuf |= (UINT32) (Sd->mSubBitBuf << (NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount)));
+    NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount);
+    Sd->mBitBuf |= (UINT32) LShiftU64 (((UINT64)Sd->mSubBitBuf), NumOfBits);
 
     if (Sd->mCompSize > 0) {
       //