Simplify the byte reordering logic slightly.

llvm-svn: 121216
diff --git a/llvm/lib/Target/ARM/ARMAsmBackend.cpp b/llvm/lib/Target/ARM/ARMAsmBackend.cpp
index 7c4823d..0bf6dd6 100644
--- a/llvm/lib/Target/ARM/ARMAsmBackend.cpp
+++ b/llvm/lib/Target/ARM/ARMAsmBackend.cpp
@@ -131,10 +131,8 @@
     
     // Same addressing mode as fixup_arm_pcrel_10, but with the bytes reordered.
     if (Kind == ARM::fixup_t2_pcrel_10) {
-      uint64_t swapped = (Value & 0x00FF0000) >> 16;
-      swapped |= (Value & 0xFF000000) >> 16;
-      swapped |= (Value & 0x000000FF) << 16;
-      swapped |= (Value & 0x0000FF00) << 16;
+      uint64_t swapped = (Value & 0xFFFF0000) >> 16;
+      swapped |= (Value & 0x0000FFFF) << 16;
       return swapped;
     }