From b1efd481b4d656213e4c02ccc7e9a7991a8630f3 Mon Sep 17 00:00:00 2001
From: CGH0S7 <776459475@qq.com>
Date: Mon, 4 Aug 2025 17:34:05 +0800
Subject: [PATCH] =?UTF-8?q?[midend]BinaryExpStack=E8=A1=A8=E8=BE=BE?=
 =?UTF-8?q?=E5=BC=8F=E5=BC=B9=E5=87=BA=E9=83=A8=E5=88=86=E4=BC=98=E5=8C=96?=
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---
 src/midend/SysYIRGenerator.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/midend/SysYIRGenerator.cpp b/src/midend/SysYIRGenerator.cpp
index 2e0e910..50c4114 100644
--- a/src/midend/SysYIRGenerator.cpp
+++ b/src/midend/SysYIRGenerator.cpp
@@ -262,10 +262,12 @@ void SysYIRGenerator::compute() {
   }
   
   // 弹出BinaryExpStack的表达式
-  while(begin < end) {
+  int count = end - begin;
+  for (int i = 0; i < count; i++) {
     BinaryExpStack.pop_back();
-    BinaryExpLenStack.back()--;
-    end--;
+  }
+  if (!BinaryExpLenStack.empty()) {
+    BinaryExpLenStack.back() -= count;
   }
 
   // 计算后缀表达式