[midend]重构了src目录

src/midend/CMakeLists.txt

@@ -0,0 +1,23 @@
+# src/midend/CMakeLists.txt
+add_library(midend_lib STATIC
+    IR.cpp
+    SysYIRGenerator.cpp
+    SysYIRPrinter.cpp
+    Pass/Pass.cpp
+    Pass/Analysis/Dom.cpp
+    Pass/Analysis/Liveness.cpp
+    Pass/Optimize/DCE.cpp
+    Pass/Optimize/Mem2Reg.cpp
+    Pass/Optimize/Reg2Mem.cpp
+    Pass/Optimize/SysYIRCFGOpt.cpp
+)
+
+# 包含中端模块所需的头文件路径
+target_include_directories(midend_lib PUBLIC
+    ${CMAKE_CURRENT_SOURCE_DIR}/../include/midend            # 中端顶层头文件
+    ${CMAKE_CURRENT_SOURCE_DIR}/../include/midend/Pass       # 增加 Pass 头文件路径
+    ${CMAKE_CURRENT_SOURCE_DIR}/../include/midend/Pass/Analysis # 增加 Pass/Analysis 头文件路径
+    ${CMAKE_CURRENT_SOURCE_DIR}/../include/midend/Pass/Optimize # 增加 Pass/Optimize 头文件路径
+    ${CMAKE_CURRENT_SOURCE_DIR}/../include/frontend          # 增加 frontend 头文件路径 (已存在)
+    ${ANTLR_RUNTIME}/runtime/src # ANTLR运行时库头文件
+)