diff --git a/App/lib/core/Gen/TranslatorGenMixin.vp b/App/lib/core/Gen/TranslatorGenMixin.vp
index 0992234..d538e26 100644
--- a/App/lib/core/Gen/TranslatorGenMixin.vp
+++ b/App/lib/core/Gen/TranslatorGenMixin.vp
@@ -548,6 +548,14 @@ novirtual class TranslatorGenMixin:
                     # resolved struct value in Ptr; pure t.CStruct keeps a value instance.
                     if resolved.kind() == mlirlite.LLVMType.Struct:
                         gv_entry: GenTypes.StructEntry* = self.Gen.StructGen.find_struct_by_type(resolved)
+                        # [TEMP-DIAG] 模块级 struct 全局的类型决策（定位完删除）：
+                        #   hasnew/hasvtable/isoop 任一为真 ⇒ 全局被包成 Ptr（指针槽），
+                        #   与"局部变量=值本体"不一致 ⇒ `CAM = V3(...)` 被当成把栈地址交给全局。
+                        gv_hn: int = -1; gv_hv: int = -1; gv_oo: int = -1
+                        if gv_entry is not None:
+                            gv_hn = gv_entry.HasNew; gv_hv = gv_entry.HasVTable; gv_oo = gv_entry.IsOOP
+                        stdio.printf("[GVAR-DIAG] name=%s hasnew=%d hasvtable=%d isoop=%d\n",
+                                     var_name, gv_hn, gv_hv, gv_oo)
                         if gv_entry is not None and (gv_entry.HasNew != 0 or gv_entry.HasVTable != 0 or gv_entry.IsOOP != 0):
                             # Object-class global (object-as-pointer): remember the Struct value type
                             # so a BSS storage global can hold the instance; otherwise @g is NULL.