修正了 args 传参问题

includes/llvmlite/__builder.vp

@@ -1219,6 +1219,29 @@ def build_cmpxchg(builder: IRBuilder | t.CPtr, ptr: Value | t.CPtr,
     return SSAValue(pool, new_val.Ty, name)
 
 
+# ============================================================
+# va_arg 指令: 从 va_list 读取下一个变长参数
+# ============================================================
+def build_va_arg(builder: IRBuilder | t.CPtr,
+                 va_list_ptr: Value | t.CPtr,
+                 arg_ty: LLVMType | t.CPtr) -> Value | t.CPtr:
+    """%N = va_arg <va_list_ty> <va_list_ptr>, <arg_ty>"""
+    if builder is None or va_list_ptr is None or arg_ty is None:
+        return None
+    pool: memhub.MemBuddy | t.CPtr = builder.Pool
+    name: t.CChar | t.CPtr = _alloc_ssa_name(builder)
+    va_list_ty_s: t.CChar | t.CPtr = _type_str(builder, va_list_ptr.Ty)
+    arg_ty_s: t.CChar | t.CPtr = _type_str(builder, arg_ty)
+    line: t.CChar | t.CPtr = pool.alloc(256)
+    if line is None: return None
+    if va_list_ptr.Name is None:
+        return None
+    viperlib.snprintf(line, 256, "%s = va_arg %s %s, %s",
+                      name, va_list_ty_s, va_list_ptr.Name, arg_ty_s)
+    _emit(builder, line)
+    return SSAValue(pool, arg_ty, name)
+
+
 # ============================================================
 # 内联汇编 (Phase 3)
 # ============================================================

includes/llvmlite/__init__.vp

@@ -51,7 +51,7 @@ from .__builder import (
     build_fpext, build_fptrunc, build_fp2si, build_si2fp, build_fp2ui, build_ui2fp,
     build_gep, build_gep_array, build_gep_struct,
     build_phi, build_switch, build_select, build_unreachable,
-    build_atomicrmw, build_cmpxchg, build_inline_asm,
+    build_atomicrmw, build_cmpxchg, build_inline_asm, build_va_arg,
     PhiIncoming, new_phi_incoming, SwitchCase, new_switch_case,
     ICMP_EQ, ICMP_NE, ICMP_SGT, ICMP_SGE, ICMP_SLT, ICMP_SLE,
     ICMP_UGT, ICMP_UGE, ICMP_ULT, ICMP_ULE,

includes/llvmlite/__types.vp

@@ -120,9 +120,27 @@ def Int64(pool: memhub.MemBuddy | t.CPtr) -> LLVMType | t.CPtr:
 
 
 def Ptr(pool: memhub.MemBuddy | t.CPtr, pointee: LLVMType | t.CPtr) -> LLVMType | t.CPtr:
+    """创建指针类型 Ptr(pointee)
+
+    LLVM IR 中 **不允许 void* 指针**（"pointers to void are invalid"），
+    因此：
+      - 若 pointee == None          → 回退 Ptr(Int8)
+      - 若 pointee 是 LLVMType.Void  → 回退 Ptr(Int8)（对应 C 的 void* 语法在 TPV 中写 Ptr(t.CVoid)）
+    其他类型正常构造 Ptr(pointee)。
+    """
+    # ============== 前置校验: 拦截 Void / None pointee（void* 非法）==============
+    safe_pointee: LLVMType | t.CPtr = pointee
+    if safe_pointee is None:
+        safe_pointee = Int8(pool)
+    else:
+        match safe_pointee:
+            case LLVMType.Void():
+                safe_pointee = Int8(pool)
+            case _:
+                pass
     ptr: LLVMType | t.CPtr = _new_type(pool)
     if ptr is None: return None
-    c.DerefAs(ptr, LLVMType.Ptr(pointee))
+    c.DerefAs(ptr, LLVMType.Ptr(safe_pointee))
     return ptr
 
 
@@ -372,14 +390,34 @@ def TypePrint(buf: t.CChar | t.CPtr, size: t.CSizeT,
         case LLVMType.Int(bits):
             viperlib.snprintf(buf, size, "i%d", bits)
         case LLVMType.Ptr(pointee):
-            # 快速路径: Ptr(Struct(name)) → %"name"*
-            # 使用 snprintf 一次性格式化，避免递归 TypePrint + _strappend 导致的截断
+            # ================================================================
+            # LLVM IR 不允许 "void*"，必须是 "i8*"。
+            # 兜底处理：
+            #   pointee == None / Void() / Label() / Metadata()  →  统一打印 i8*
+            # ================================================================
+            # 先判断是否 Struct(name) 的快速路径（需先判断 pointee 非None）
             if pointee is not None:
                 match pointee:
                     case LLVMType.Struct(sfields, sfcount, sname):
                         if sname is not None:
                             viperlib.snprintf(buf, size, "%%\"%s\"*", sname)
                             return
+                    case LLVMType.Void():
+                        # Ptr(Void) → i8*（LLVM IR void* 非法）
+                        string.strcpy(buf, "i8*")
+                        return
+                    case LLVMType.Label():
+                        string.strcpy(buf, "i8*")
+                        return
+                    case LLVMType.Metadata():
+                        string.strcpy(buf, "i8*")
+                        return
+                    case _:
+                        pass
+            # pointee == None 时也兜底 Ptr(Int8) 打印 i8*
+            if pointee is None:
+                string.strcpy(buf, "i8*")
+                return
             # 通用路径: 递归打印 pointee 后追加 '*'
             TypePrint(buf, size, pointee, pool)
             pos: t.CSizeT = string.strlen(buf)