Add parentheses to avoid warnings in GCC 4.4.0,
patch by Samuel Tardieu!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57288 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 6f9893c..8cb5e4f 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -3939,7 +3939,7 @@
         // X >>u 2 -> collect(X, -2)
         OverallLeftShift -= ByteShift;
         ByteMask <<= ByteShift;
-        ByteMask &= (~0U >> 32-ByteValues.size());
+        ByteMask &= (~0U >> (32-ByteValues.size()));
       }
 
       if (OverallLeftShift >= (int)ByteValues.size()) return true;