diff --git a/src/Php/CompilerBase.php b/src/Php/CompilerBase.php
index 05186cdb..bd62fd4e 100644
--- a/src/Php/CompilerBase.php
+++ b/src/Php/CompilerBase.php
@@ -1158,7 +1158,8 @@ class CompilerBase extends \PhpAot\Core\Translator
             $this->context->ssaBuilder = new SsaBuilder($v->stmts, $this->functionDef->argInfoList);
             $this->context->ssaBuilder->build();
             // Narrow local variable types based on SSA analysis
-            $this->optimizeVarTypes();
+            // TODO: 优化变量类型，不可靠，静态分析几乎无法判断是否会溢出
+            // $this->optimizeVarTypes();
             // Analyze object stability for property reference hoisting
             $this->optimizeObjectProps();
         }