From 4f4842ae3aae0dfa44b9e956690b4a2e1c9f2f5e Mon Sep 17 00:00:00 2001
From: mxr <>
Date: Thu, 9 Apr 2026 16:05:38 +0800
Subject: [PATCH] =?UTF-8?q?feat(mir)=E4=BF=AE=E5=A4=8D=E5=87=BD=E6=95=B0?=
 =?UTF-8?q?=E5=BA=8F=E8=A8=80=E6=8F=92=E5=85=A5=E9=97=AE=E9=A2=98?=
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---
 src/mir/FrameLowering.cpp | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/mir/FrameLowering.cpp b/src/mir/FrameLowering.cpp
index 62d7ccb..53c256a 100644
--- a/src/mir/FrameLowering.cpp
+++ b/src/mir/FrameLowering.cpp
@@ -42,13 +42,19 @@ void RunFrameLowering(MachineFunction& function) {
 
   // 基本块
   const auto& blocks = function.GetBasicBlocks();
-
+  bool firstBlock = true;
+  
   for (const auto& bb : blocks) {
     DEBUG_MSG("block");
     auto& insts = bb->GetInstructions();
     std::vector<MachineInstr> lowered;
-    DEBUG_MSG("empalace Prologue");
-    lowered.emplace_back(Opcode::Prologue);    
+    // 输出基本块标签（非第一个基本块）
+    if (firstBlock) {
+      DEBUG_MSG("empalace Prologue");
+      lowered.emplace_back(Opcode::Prologue); 
+    }
+    firstBlock = false;
+
     // 输出基本块中的指令
     for (const auto& inst : insts) {
       DEBUG_MSG("inst");