Using llvm::sys::swapByteOrder() for the common case of byte-swapping a value in place

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210978 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/DataExtractor.cpp

@@ -21,7 +21,7 @@ static T getU(uint32_t *offset_ptr, const DataExtractor *de,
   if (de->isValidOffsetForDataOfSize(offset, sizeof(val))) {
     std::memcpy(&val, &Data[offset], sizeof(val));
     if (sys::IsLittleEndianHost != isLittleEndian)
-      val = sys::getSwappedBytes(val);
+      sys::swapByteOrder(val);
 
     // Advance the offset
     *offset_ptr += sizeof(val);