DuetPkg: Fix Xcode 9 Beta treating 32-bit left shift as undefined

[mirror_edk2.git] / DuetPkg / EfiLdr / TianoDecompress.c

diff --git a/DuetPkg/EfiLdr/TianoDecompress.c b/DuetPkg/EfiLdr/TianoDecompress.c
index b504e8e1d4dcd12248bd2a77aff90b4087bfecae..695f5162fcbf58a96d76d02a407cf5d9e36c99de 100644 (file)
--- a/DuetPkg/EfiLdr/TianoDecompress.c
+++ b/DuetPkg/EfiLdr/TianoDecompress.c
@@ -93,11 +93,11 @@ Returns: (VOID)
 \r
 --*/\r
 {\r
-  Sd->mBitBuf = (UINT32) (Sd->mBitBuf << NumOfBits);\r
+  Sd->mBitBuf = (UINT32) LShiftU64 (((UINT64)Sd->mBitBuf), NumOfBits);\r
 \r
   while (NumOfBits > Sd->mBitCount) {\r
-\r
-    Sd->mBitBuf |= (UINT32) (Sd->mSubBitBuf << (NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount)));\r
+    NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount);\r
+    Sd->mBitBuf |= (UINT32) LShiftU64 (((UINT64)Sd->mSubBitBuf), NumOfBits);\r
 \r
     if (Sd->mCompSize > 0) {\r
       //\r