[backend]解决了数组访存地址计算问题，加入了参数控制的中端、后端调试选项

src/sysyc.cpp

@@ -18,6 +18,9 @@ using namespace antlr4;
 // #include "LLVMIRGenerator.h"
 using namespace sysy;
 
+int DEBUG = 0;
+int DEEPDEBUG = 0;
+
 static string argStopAfter;
 static string argInputFile;
 static bool argFormat = false;
@@ -27,7 +30,7 @@ void usage(int code = EXIT_FAILURE) {
                     "Supported options:\n"
                     "  -h \tprint help message and exit\n";
   "  -f \tpretty-format the input file\n";
-  "  -s {ast,ir,asm,llvmir}\tstop after generating AST/IR/Assembly\n";
+  "  -s {ast,ir,asm,llvmir,asmd,ird}\tstop after generating AST/IR/Assembly\n";
   cerr << msg;
   exit(code);
 }
@@ -80,10 +83,16 @@ int main(int argc, char **argv) {
   // visit AST to generate IR
   SysYIRGenerator generator;
   generator.visitCompUnit(moduleAST);
-  if (argStopAfter == "ir") {
+  if (argStopAfter == "ir" || argStopAfter == "ird") {
+    if (argStopAfter == "ird") {
+      DEBUG = 1;
+    }
     auto moduleIR = generator.get(); 
     SysYPrinter printer(moduleIR);
-    printer.printIR();
+    if (DEBUG) {
+      cout << "=== Original IR ===\n";
+      printer.printIR();
+    }
     auto builder = generator.getBuilder();
     SysYOptPre optPre(moduleIR, builder);
     optPre.SysYOptimizateAfterIR();
@@ -91,19 +100,35 @@ int main(int argc, char **argv) {
     cfa.init();
     ActiveVarAnalysis ava;
     ava.init(moduleIR);
-    printer.printIR();
-
-    
+    if (DEBUG) {
+      cout << "=== After CFA & AVA ===\n";
+      printer.printIR();
+    }
     DeadCodeElimination dce(moduleIR, &cfa, &ava);
     dce.runDCEPipeline();
-    
+    if (DEBUG) {
+      cout << "=== After 1st DCE ===\n";
+      printer.printIR();
+    }
     Mem2Reg mem2reg(moduleIR, builder, &cfa, &ava);
     mem2reg.mem2regPipeline();
-    printer.printIR();
+    if (DEBUG) {
+      cout << "=== After Mem2Reg ===\n";
+      printer.printIR();
+    }
     Reg2Mem reg2mem(moduleIR, builder);
     reg2mem.DeletePhiInst();
-    printer.printIR();
+    if (DEBUG) {
+      cout << "=== After Reg2Mem ===\n";
+      printer.printIR();
+    }
     dce.runDCEPipeline();
+    if (DEBUG) {
+      cout << "=== After 2nd DCE ===\n";
+      printer.printIR();
+    }
+    cout << "=== Final IR ===\n";
+    printer.printIR();
     return EXIT_SUCCESS;
   }
 
@@ -111,7 +136,11 @@ int main(int argc, char **argv) {
   auto module = generator.get();
   sysy::RISCv64CodeGen codegen(module);
   string asmCode = codegen.code_gen();
-  if (argStopAfter == "asm") {
+  if (argStopAfter == "asm" || argStopAfter == "asmd") {
+    if (argStopAfter == "asmd") {
+      DEBUG = 1;
+      DEEPDEBUG = 1;
+    }
     cout << asmCode << endl;
     return EXIT_SUCCESS;
   }