diff --git a/includes/llvmlite/__init__.vp b/includes/llvmlite/__init__.vp
index 581560a..9ee22bf 100644
--- a/includes/llvmlite/__init__.vp
+++ b/includes/llvmlite/__init__.vp
@@ -93,7 +93,36 @@ def _str_dup(pool: memhub.MemBuddy | t.CPtr, src: t.CChar | t.CPtr) -> t.CChar |
 def create_block(pool: memhub.MemBuddy | t.CPtr, func: Function | t.CPtr,
                  name: t.CChar | t.CPtr) -> BasicBlock | t.CPtr:
     """创建基本块并添加到函数"""
-    name_dup: t.CChar | t.CPtr = _str_dup(pool, name)
+    # 块名与函数参数值名冲突防护：LLVM 中块标签 "entry:" 即值 %entry，
+    # 与参数 %entry 重名 → llc "unable to create block named 'entry'"
+    # （CallGenCall._field_byte_offset(self, pool, entry, ...) 根因）。
+    # 冲突时追加 .1/.2/... 后缀去重（Param.Name 可能带 % 前缀，剥离比较）。
+    use_name: t.CChar | t.CPtr = name
+    if func is not None and func.Params is not None and name is not None \
+            and name[0] != '\0':
+        cb_len: t.CSizeT = string.strlen(name) + 16
+        cb_buf: str = pool.alloc(cb_len)
+        if cb_buf is not None:
+            cb_k: int = 1
+            cb_collide: int = 1
+            while cb_collide != 0:
+                cb_collide = 0
+                cb_p: Param | t.CPtr = function_get_param_head(func)
+                while cb_p is not None:
+                    cb_pnm: str = param_get_name(cb_p)
+                    if cb_pnm is not None:
+                        cb_pv: str = cb_pnm
+                        if cb_pv[0] == '%':
+                            cb_pv = cb_pv + 1
+                        if string.strcmp(cb_pv, use_name) == 0:
+                            cb_collide = 1
+                            break
+                    cb_p = param_get_next(cb_p)
+                if cb_collide != 0:
+                    viperlib.snprintf(cb_buf, cb_len, "%s.%d", name, cb_k)
+                    use_name = cb_buf
+                    cb_k += 1
+    name_dup: t.CChar | t.CPtr = _str_dup(pool, use_name)
     blk: BasicBlock | t.CPtr = new_basic_block(pool, name_dup)
     if blk is not None:
         function_add_block(func, blk)