[DO NOT BUILD] working on push/pop

src/main/java/chocopy/pa3/CodeGenImpl.java

@@ -299,7 +299,6 @@ public class CodeGenImpl extends CodeGenBase {
 
         @Override
         public Void analyze(AssignStmt node) {
-            backend.emitADDI(SP, SP, -4, "Increment stack ptr by 1 for Condition");
             node.value.dispatch(this);
             RiscVBackend.Register tmpReg = /*regMgr.borrowOneTmp()*/ T6;
             RiscVBackend.Register tmpReg2 = /*regMgr.borrowOneTmp()*/ T5;
@@ -358,7 +357,6 @@ public class CodeGenImpl extends CodeGenBase {
 
         @Override
         public Void analyze(IfStmt node) {
-            backend.emitADDI(SP, SP, -4, "Increment stack ptr by 1 for Condition");
             node.condition.dispatch(this);
             RiscVBackend.Register tmpReg = /*regMgr.borrowTmp()*/ T6;
             betterBackend.emitPop(tmpReg, "IfStmt: Get condition");
@@ -389,7 +387,6 @@ public class CodeGenImpl extends CodeGenBase {
             Label exitLabel = new Label(labelPrefix + ".exit");
 
             backend.emitLocalLabel(beginLabel, "WhileStmt: Begin");
-            backend.emitADDI(SP, SP, -4, "Increment stack ptr by 1 for Condition");
             node.condition.dispatch(this);
             RiscVBackend.Register tmpReg = /*borrowOneTmp*/ T6;
             betterBackend.emitPop(tmpReg, "GetCondition");
@@ -472,20 +469,20 @@ public class CodeGenImpl extends CodeGenBase {
             SymbolInfo ident = sym.get(id.name);
             if (ident instanceof GlobalVarInfo) {     // global var case
                 backend.emitLW(A0, ((GlobalVarInfo) ident).getLabel(), "Load identifier");
-                backend.emitSW(A0, SP, 0, "Push to stack");
+                betterBackend.emitPush(A0, "Ident: GlobalVar");
             } else if (ident instanceof StackVarInfo){ // local variable
                 StackVarInfo identVar = (StackVarInfo) ident;
                 if(funcArgsMap.containsKey(identVar.getVarName())) {
                     // is a function arg.
                     backend.emitLW(T6, FP, funcArgsMap.get(identVar.getVarName()), "Idnet:get FuncArg identifier value to reg");
-                    backend.emitSW(T6, SP, 0, "Push to stack without decrease SP");
+                    betterBackend.emitPush(T6, "Ident: Arg");
                     return null; // DO NOT RUN THE FUCKING SILLY CODE BELOW
                 }
                 // TODO: Function arg works, but local var won't work.
                 if (id.getInferredType().equals(SymbolType.INT_TYPE)) {
                     IntegerLiteral value = (IntegerLiteral) (identVar.getInitialValue());
                     backend.emitLI(A0, value.value, "Load initial value of StackVar");
-                    backend.emitSW(A0, SP, 0, "Push to stack");
+                    betterBackend.emitPush(A0, "Ident: LocalVar");
                 }
             }
             return null;