src/hotspot/cpu/x86/assembler_x86.cpp

@@ -3097,11 +3097,11 @@
       default:
         assert(i == 0, " ");
     }
     return;
   }
-  if (UseAddressNop && VM_Version::is_amd()) {
+  if (UseAddressNop && (VM_Version::is_amd() || VM_Version::is_hygon())) {
     //
     // Using multi-bytes nops "0x0F 0x1F [address]" for AMD.
     //  1: 0x90
     //  2: 0x66 0x90
     //  3: 0x66 0x66 0x90 (don't use "0x0F 0x1F 0x00" - need patching safe padding)