From 143174ee4fb378b558640016f82836de5884e76a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E8=88=AA=E5=AE=87?= <3364451258@qq.com>
Date: Fri, 5 Jun 2026 21:43:48 +0800
Subject: [PATCH] =?UTF-8?q?refactor:=20=E9=93=BE=E6=8E=A5=E5=99=A8?=
 =?UTF-8?q?=E4=BB=8E=20gcc=20=E6=94=B9=E4=B8=BA=20clang=20+=20lld=EF=BC=88?=
 =?UTF-8?q?=E4=BC=98=E5=85=88=20clang=E2=86=92fallback=20gcc=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/driver/main.c | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/src/driver/main.c b/src/driver/main.c
index 2f28f51..abe6568 100644
--- a/src/driver/main.c
+++ b/src/driver/main.c
@@ -137,12 +137,37 @@ int main(int argc, char** argv) {
             return 1;
         }
 
-        // 调用 gcc 链接（MinGW 环境可用）
+        // 链接：优先 clang + lld（LLVM 自带），fallback gcc
         char cmd[1024];
+        int ret = -1;
+
+        // 构造 LLVM bin 路径（从 LLVM-C.dll 的位置推断）
+        char llvm_clang[512];
+        snprintf(llvm_clang, sizeof(llvm_clang),
+                 "D:/settings/Language/LLVM/bin/clang.exe");
+
+        // 1) 优先: clang + lld（零新依赖，已随 LLVM 安装）
         snprintf(cmd, sizeof(cmd),
-                 "gcc \"%s\" -o \"%s\"",
-                 obj_path, output);
-        int ret = system(cmd);
+                 "\"%s\" -target x86_64-w64-windows-gnu -fuse-ld=lld \"%s\" -o \"%s\"",
+                 llvm_clang, obj_path, output);
+        ret = system(cmd);
+
+        // 2) 备选: 系统 PATH 中的 clang
+        if (ret != 0) {
+            snprintf(cmd, sizeof(cmd),
+                     "clang -target x86_64-w64-windows-gnu -fuse-ld=lld \"%s\" -o \"%s\"",
+                     obj_path, output);
+            ret = system(cmd);
+        }
+
+        // 3) 最后 fallback: gcc
+        if (ret != 0) {
+            snprintf(cmd, sizeof(cmd),
+                     "gcc \"%s\" -o \"%s\"",
+                     obj_path, output);
+            ret = system(cmd);
+        }
+
         if (ret != 0) {
             fprintf(stderr, "链接失败 (exit code %d)\n", ret);
         } else {