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

llvm-svn: 210978
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
index 3e9a68a..11cc3b2 100644
--- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
@@ -245,14 +245,14 @@
 
   void writeInt16BE(uint8_t *Addr, uint16_t Value) {
     if (IsTargetLittleEndian)
-      Value = sys::getSwappedBytes(Value);
+      sys::swapByteOrder(Value);
     *Addr       = (Value >> 8) & 0xFF;
     *(Addr + 1) = Value & 0xFF;
   }
 
   void writeInt32BE(uint8_t *Addr, uint32_t Value) {
     if (IsTargetLittleEndian)
-      Value = sys::getSwappedBytes(Value);
+      sys::swapByteOrder(Value);
     *Addr       = (Value >> 24) & 0xFF;
     *(Addr + 1) = (Value >> 16) & 0xFF;
     *(Addr + 2) = (Value >> 8) & 0xFF;
@@ -261,7 +261,7 @@
 
   void writeInt64BE(uint8_t *Addr, uint64_t Value) {
     if (IsTargetLittleEndian)
-      Value = sys::getSwappedBytes(Value);
+      sys::swapByteOrder(Value);
     *Addr       = (Value >> 56) & 0xFF;
     *(Addr + 1) = (Value >> 48) & 0xFF;
     *(Addr + 2) = (Value >> 40) & 0xFF;