From 6b25123ab53fe0d7fb7f68b4a816c8e1d9671833 Mon Sep 17 00:00:00 2001
From: gouzi <530971494@qq.com>
Date: Tue, 6 Jun 2023 16:49:32 +0800
Subject: [PATCH] [opcode] fix IS_OP

---
 symbolic_trace/opcode_translator/executor/opcode_executor.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/symbolic_trace/opcode_translator/executor/opcode_executor.py b/symbolic_trace/opcode_translator/executor/opcode_executor.py
index 2f16f2368..bce0555e0 100644
--- a/symbolic_trace/opcode_translator/executor/opcode_executor.py
+++ b/symbolic_trace/opcode_translator/executor/opcode_executor.py
@@ -693,8 +693,7 @@ def COMPARE_OP(self, instr):
     def IS_OP(self, instr):
         # It will only be 0 or 1
         assert instr.argval == 0 or instr.argval == 1
-        left = self.pop()
-        right = self.pop()
+        right, left = self.pop(), self.pop()
         if instr.argval == 0:
             self.push(SUPPORT_COMPARE_OP["is"](left, right))
         else: