From fbea91986d06d8e22a78d4072bf48bd5e1c0fe76 Mon Sep 17 00:00:00 2001
From: lzkk <956449176@qq.com>
Date: Tue, 26 May 2026 19:59:54 +0800
Subject: [PATCH] =?UTF-8?q?feat(mir):=20=E6=8C=87=E4=BB=A4=E7=BA=A7?=
 =?UTF-8?q?=E6=B4=BB=E5=8F=98=E9=87=8F=E5=88=86=E6=9E=90=20+=20CLI/?=
 =?UTF-8?q?=E6=9E=84=E5=BB=BA=E9=9B=86=E6=88=90?=
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- InstLiveness: 三阶段算法（块级 fixpoint + 指令反向扫描 + 区间构建）
- 支持 phi-copy 插入环境（非严格 SSA）：union 区间
- CLI.h 添加 regalloc 字段，支持 --regalloc=linear/graphcoloring
---
 src/utils/CLI.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/utils/CLI.cpp b/src/utils/CLI.cpp
index 16245faa..1f37c290 100644
--- a/src/utils/CLI.cpp
+++ b/src/utils/CLI.cpp
@@ -87,6 +87,17 @@ CLIOptions ParseCLI(int argc, char** argv) {
       continue;
     }
 
+    // 寄存器分配器选择
+    if (std::strncmp(arg, "--regalloc=", 12) == 0) {
+      opt.regalloc = arg + 12;
+      if (opt.regalloc != "linear" && opt.regalloc != "graphcoloring") {
+        throw std::runtime_error(
+            FormatError("cli", std::string("未知寄存器分配器: ") + opt.regalloc +
+                                   "（可选: graphcoloring, linear）"));
+      }
+      continue;
+    }
+
     // 兼容旧格式
     if (std::strcmp(arg, "--emit-parse-tree") == 0) {
       if (!explicit_emit) {