--- a/src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp	Thu Sep 28 14:55:45 2017 +0200
+++ b/src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp	Thu Nov 02 18:44:44 2017 +0300
@@ -2657,9 +2657,9 @@
   __ adrp(res, ExternalAddress(StubRoutines::crc_table_addr()), offset);
   if (offset) __ add(res, res, offset);
 
-  __ ornw(crc, zr, crc); // ~crc
+  __ mvnw(crc, crc); // ~crc
   __ update_byte_crc32(crc, val, res);
-  __ ornw(res, zr, crc); // ~crc
+  __ mvnw(res, crc); // ~crc
 }
 
 void LIR_Assembler::emit_profile_type(LIR_OpProfileType* op) {