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

@@ -195,10 +195,11 @@
                                     Register src,
                                     Register tmp1,
                                     Register tmp2) {
   BLOCK_COMMENT("ZBarrierSetAssembler::store_at {");
 
+  assert(type != T_VALUETYPE, "Not supported yet");
   // Verify oop store
   if (type == T_OBJECT || type == T_ARRAY) {
     // Note that src could be noreg, which means we
     // are storing null and can skip verification.
     if (src != noreg) {