src/hotspot/cpu/x86/gc/z/zBarrierSetAssembler_x86.cpp

@@ -357,11 +357,11 @@
 // raddr register contains the good/healed oop returned from
 // ZBarrierSetRuntime::load_barrier_on_oop_field_preloaded() or
 // ZBarrierSetRuntime::load_barrier_on_weak_oop_field_preloaded().
 static address generate_load_barrier_stub(StubCodeGenerator* cgen, Register raddr, DecoratorSet decorators) {
   // Don't generate stub for invalid registers
-  if (raddr == rsp || raddr == r12 || raddr == r15) {
+  if (raddr == rsp || raddr == r15) {
     return NULL;
   }
 
   // Create stub name
   char name[64];