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

*** 195,204 ****
--- 195,205 ----
                                      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) {