mips without optimize
This commit is contained in:
colden
334
midend/visit/VisitorDecl.java
Normal file → Executable file
334
midend/visit/VisitorDecl.java
Normal file → Executable file
@@ -1,167 +1,167 @@
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package midend.visit;
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import java.util.ArrayList;
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import frontend.ast.decl.ConstDecl;
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import frontend.ast.decl.ConstDef;
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import frontend.ast.decl.Decl;
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import frontend.ast.decl.VarDecl;
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import frontend.ast.decl.VarDef;
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import frontend.ast.exp.ConstExp;
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import frontend.ast.exp.Exp;
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import frontend.ast.token.TokenNode;
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import frontend.lexer.Token;
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import midend.llvm.IrBuilder;
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import midend.llvm.constant.IrConstant;
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import midend.llvm.constant.IrConstantArray;
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import midend.llvm.constant.IrConstantInt;
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import midend.llvm.instr.AllocateInstr;
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import midend.llvm.instr.StoreInstr;
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import midend.llvm.instr.GepInstr;
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import midend.llvm.type.IrArrayType;
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import midend.llvm.type.IrFuncType;
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import midend.llvm.type.IrInterType;
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import midend.llvm.type.IrPointerType;
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import midend.llvm.type.IrType;
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import midend.llvm.value.IrGlobalValue;
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import midend.llvm.value.IrValue;
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import midend.symbol.SymbolType;
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import midend.symbol.ArraySymbol;
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import midend.symbol.Symbol;
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import midend.symbol.SymbolManager;
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public class VisitorDecl {
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public static void visitDecl(Decl decl) {
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if (decl.getChild(0) instanceof ConstDecl) {
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visitConstDecl((ConstDecl) decl.getChild(0));
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} else {
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visitVarDecl((VarDecl) decl.getChild(0));
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}
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}
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public static void visitConstDecl(ConstDecl constDecl) {
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ArrayList<ConstDef> constDefs = constDecl.GetConstDefs();
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for (ConstDef constDef : constDefs) {
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visitConstDef(constDef);
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}
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}
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public static void visitVarDecl(VarDecl varDecl) {
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ArrayList<VarDef> varDefs = varDecl.GetVarDefs();
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for (VarDef varDef : varDefs) {
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visitVarDef(varDef);
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}
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}
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public static void visitConstDef(ConstDef constDef) {
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Symbol symbol = SymbolManager.getSymbol(((TokenNode) constDef.getChild(0)).getValue());
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if (SymbolManager.IsGlobal()) { // 全局变量下直接声明
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IrGlobalValue irGlobalValue = new IrGlobalValue(
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new IrPointerType(getSymbolIrType(symbol)),
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IrBuilder.getGlobalName(), true, getSymbolIrConst(symbol));
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IrBuilder.addNewGlobal(irGlobalValue);
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symbol.setIrValue(irGlobalValue);
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} else { // 局部变量需要分配地址再存值
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AllocateInstr allocateInstr = new AllocateInstr(getSymbolIrType(symbol),
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IrBuilder.getLocalName());
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IrBuilder.addInstr(allocateInstr);
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symbol.setIrValue(allocateInstr);
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ArrayList<Integer> valueList = symbol.getValueList();
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if (!(symbol instanceof ArraySymbol)) {
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StoreInstr storeInstr = new StoreInstr(getSymbolIrConst(symbol),
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allocateInstr);
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IrBuilder.addInstr(storeInstr);
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} else {
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for (int i = 0; i < valueList.size(); i++) {
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GepInstr gepInstr = new GepInstr(allocateInstr,
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new IrConstantInt(i), IrBuilder.getLocalName());
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IrBuilder.addInstr(gepInstr);
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IrValue initValue = new IrConstantInt(valueList.get(i));
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StoreInstr storeInstr = new StoreInstr(initValue, gepInstr);
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IrBuilder.addInstr(storeInstr);
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}
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}
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}
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}
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private static void visitVarDef(VarDef varDef) {
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Symbol symbol = SymbolManager.getSymbol(((TokenNode) varDef.getChild(0)).getValue());
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if (SymbolManager.IsGlobal()) {
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IrGlobalValue irGlobalValue = new IrGlobalValue(
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new IrPointerType(getSymbolIrType(symbol)),
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IrBuilder.getGlobalName(), false, getSymbolIrConst(symbol));
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IrBuilder.addNewGlobal(irGlobalValue);
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symbol.setIrValue(irGlobalValue);
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} else { // Think:static修饰的变量该如何实现
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visitLocalVarDef(varDef, symbol);
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}
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}
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private static void visitLocalVarDef(VarDef varDef, Symbol symbol) {
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if (symbol.getType().equals(SymbolType.STATIC_INT) ||
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symbol.getType().equals(SymbolType.STATIC_INT_ARRAY)) {
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// 当为局部变量且为static修饰的变量的时候，将其作为全局变量处理
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IrGlobalValue irGlobalValue = new IrGlobalValue(
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new IrPointerType(getSymbolIrType(symbol)),
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IrBuilder.getGlobalName(), false, getSymbolIrConst(symbol));
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IrBuilder.addNewGlobal(irGlobalValue);
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symbol.setIrValue(irGlobalValue);
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return;
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}
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AllocateInstr allocateInstr = new AllocateInstr(
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getSymbolIrType(symbol), IrBuilder.getLocalName());
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IrBuilder.addInstr(allocateInstr);
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if (!(symbol instanceof ArraySymbol)) { // 非数组变量
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if (varDef.HaveInitVal()) {
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Exp exp = varDef.getInitVal().getExpList().get(0);
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IrValue irExp = VisitorExp.visitExp(exp);
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StoreInstr storeInstr = new StoreInstr(irExp, allocateInstr);
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IrBuilder.addInstr(storeInstr);
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}
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} else { // 数组变量
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if (varDef.HaveInitVal()) {
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ArrayList<Exp> expList = varDef.getInitVal().getExpList();
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for (int i = 0; i < expList.size(); i++) {
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IrValue irExp = VisitorExp.visitExp(expList.get(i));
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irExp = IrType.convertType(irExp, IrInterType.INT32);
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GepInstr gepInstr = new GepInstr(allocateInstr,
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new IrConstantInt(i), IrBuilder.getLocalName());
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IrBuilder.addInstr(gepInstr);
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StoreInstr storeInstr = new StoreInstr(irExp, gepInstr);
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IrBuilder.addInstr(storeInstr);
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}
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}
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}
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symbol.setIrValue(allocateInstr);
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}
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public static IrType getSymbolIrType(Symbol symbol) {
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SymbolType st = symbol.getType();
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if (st.equals(SymbolType.INT) || st.equals(SymbolType.CONST_INT)
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|| st.equals(SymbolType.STATIC_INT)) {
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return IrInterType.INT32;
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} else if (st.equals(SymbolType.INT_ARRAY) || st.equals(SymbolType.CONST_INT_ARRAY)
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|| st.equals(SymbolType.STATIC_INT_ARRAY)) {
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return new IrArrayType(IrInterType.INT32, ((ArraySymbol) symbol).getDim());
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} else {
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if (st.equals(SymbolType.INT_FUNC)) {
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return new IrFuncType(IrInterType.INT32);
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} else {
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return new IrFuncType(IrInterType.VOID);
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}
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}
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}
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public static IrConstant getSymbolIrConst(Symbol symbol) {
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ArrayList<Integer> valueList = symbol.getValueList();
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if (symbol instanceof ArraySymbol) {
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ArrayList<IrConstant> elements = new ArrayList<>();
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for (int i = 0; i < valueList.size(); i++) {
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elements.add(new IrConstantInt(valueList.get(i)));
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}
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return new IrConstantArray(symbol.getName(), elements, ((ArraySymbol) symbol).getDim());
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} else {
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return valueList.isEmpty() ? new IrConstantInt(0) : new IrConstantInt(valueList.get(0));
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}
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}
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}
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package midend.visit;
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import java.util.ArrayList;
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import frontend.ast.decl.ConstDecl;
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import frontend.ast.decl.ConstDef;
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import frontend.ast.decl.Decl;
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import frontend.ast.decl.VarDecl;
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import frontend.ast.decl.VarDef;
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import frontend.ast.exp.ConstExp;
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import frontend.ast.exp.Exp;
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import frontend.ast.token.TokenNode;
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import frontend.lexer.Token;
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import midend.llvm.IrBuilder;
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import midend.llvm.constant.IrConstant;
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import midend.llvm.constant.IrConstantArray;
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import midend.llvm.constant.IrConstantInt;
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import midend.llvm.instr.AllocateInstr;
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import midend.llvm.instr.StoreInstr;
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import midend.llvm.instr.GepInstr;
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import midend.llvm.type.IrArrayType;
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import midend.llvm.type.IrFuncType;
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import midend.llvm.type.IrInterType;
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import midend.llvm.type.IrPointerType;
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import midend.llvm.type.IrType;
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import midend.llvm.value.IrGlobalValue;
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import midend.llvm.value.IrValue;
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import midend.symbol.SymbolType;
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import midend.symbol.ArraySymbol;
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import midend.symbol.Symbol;
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import midend.symbol.SymbolManager;
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public class VisitorDecl {
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public static void visitDecl(Decl decl) {
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if (decl.getChild(0) instanceof ConstDecl) {
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visitConstDecl((ConstDecl) decl.getChild(0));
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} else {
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visitVarDecl((VarDecl) decl.getChild(0));
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}
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}
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public static void visitConstDecl(ConstDecl constDecl) {
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ArrayList<ConstDef> constDefs = constDecl.GetConstDefs();
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for (ConstDef constDef : constDefs) {
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visitConstDef(constDef);
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}
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}
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public static void visitVarDecl(VarDecl varDecl) {
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ArrayList<VarDef> varDefs = varDecl.GetVarDefs();
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for (VarDef varDef : varDefs) {
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visitVarDef(varDef);
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}
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}
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public static void visitConstDef(ConstDef constDef) {
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Symbol symbol = SymbolManager.getSymbol(((TokenNode) constDef.getChild(0)).getValue());
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if (SymbolManager.IsGlobal()) { // 全局变量下直接声明
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IrGlobalValue irGlobalValue = new IrGlobalValue(
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new IrPointerType(getSymbolIrType(symbol)),
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IrBuilder.getGlobalName(), true, getSymbolIrConst(symbol));
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IrBuilder.addNewGlobal(irGlobalValue);
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symbol.setIrValue(irGlobalValue);
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} else { // 局部变量需要分配地址再存值
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AllocateInstr allocateInstr = new AllocateInstr(getSymbolIrType(symbol),
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IrBuilder.getLocalName());
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IrBuilder.addInstr(allocateInstr);
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symbol.setIrValue(allocateInstr);
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ArrayList<Integer> valueList = symbol.getValueList();
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if (!(symbol instanceof ArraySymbol)) {
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StoreInstr storeInstr = new StoreInstr(getSymbolIrConst(symbol),
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allocateInstr);
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IrBuilder.addInstr(storeInstr);
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} else {
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for (int i = 0; i < valueList.size(); i++) {
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GepInstr gepInstr = new GepInstr(allocateInstr,
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new IrConstantInt(i), IrBuilder.getLocalName());
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IrBuilder.addInstr(gepInstr);
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IrValue initValue = new IrConstantInt(valueList.get(i));
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StoreInstr storeInstr = new StoreInstr(initValue, gepInstr);
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IrBuilder.addInstr(storeInstr);
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}
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}
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}
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}
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private static void visitVarDef(VarDef varDef) {
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Symbol symbol = SymbolManager.getSymbol(((TokenNode) varDef.getChild(0)).getValue());
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if (SymbolManager.IsGlobal()) {
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IrGlobalValue irGlobalValue = new IrGlobalValue(
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new IrPointerType(getSymbolIrType(symbol)),
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IrBuilder.getGlobalName(), false, getSymbolIrConst(symbol));
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IrBuilder.addNewGlobal(irGlobalValue);
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symbol.setIrValue(irGlobalValue);
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} else { // Think:static修饰的变量该如何实现
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visitLocalVarDef(varDef, symbol);
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}
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}
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private static void visitLocalVarDef(VarDef varDef, Symbol symbol) {
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if (symbol.getType().equals(SymbolType.STATIC_INT) ||
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symbol.getType().equals(SymbolType.STATIC_INT_ARRAY)) {
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// 当为局部变量且为static修饰的变量的时候，将其作为全局变量处理
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IrGlobalValue irGlobalValue = new IrGlobalValue(
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new IrPointerType(getSymbolIrType(symbol)),
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IrBuilder.getGlobalName(), false, getSymbolIrConst(symbol));
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IrBuilder.addNewGlobal(irGlobalValue);
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symbol.setIrValue(irGlobalValue);
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return;
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}
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AllocateInstr allocateInstr = new AllocateInstr(
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getSymbolIrType(symbol), IrBuilder.getLocalName());
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IrBuilder.addInstr(allocateInstr);
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if (!(symbol instanceof ArraySymbol)) { // 非数组变量
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if (varDef.HaveInitVal()) {
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Exp exp = varDef.getInitVal().getExpList().get(0);
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IrValue irExp = VisitorExp.visitExp(exp);
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StoreInstr storeInstr = new StoreInstr(irExp, allocateInstr);
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IrBuilder.addInstr(storeInstr);
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}
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} else { // 数组变量
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if (varDef.HaveInitVal()) {
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ArrayList<Exp> expList = varDef.getInitVal().getExpList();
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for (int i = 0; i < expList.size(); i++) {
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IrValue irExp = VisitorExp.visitExp(expList.get(i));
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irExp = IrType.convertType(irExp, IrInterType.INT32);
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GepInstr gepInstr = new GepInstr(allocateInstr,
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new IrConstantInt(i), IrBuilder.getLocalName());
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IrBuilder.addInstr(gepInstr);
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StoreInstr storeInstr = new StoreInstr(irExp, gepInstr);
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IrBuilder.addInstr(storeInstr);
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}
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}
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}
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symbol.setIrValue(allocateInstr);
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}
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public static IrType getSymbolIrType(Symbol symbol) {
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SymbolType st = symbol.getType();
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if (st.equals(SymbolType.INT) || st.equals(SymbolType.CONST_INT)
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|| st.equals(SymbolType.STATIC_INT)) {
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return IrInterType.INT32;
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} else if (st.equals(SymbolType.INT_ARRAY) || st.equals(SymbolType.CONST_INT_ARRAY)
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|| st.equals(SymbolType.STATIC_INT_ARRAY)) {
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return new IrArrayType(IrInterType.INT32, ((ArraySymbol) symbol).getDim());
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} else {
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if (st.equals(SymbolType.INT_FUNC)) {
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return new IrFuncType(IrInterType.INT32);
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} else {
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return new IrFuncType(IrInterType.VOID);
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}
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}
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}
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public static IrConstant getSymbolIrConst(Symbol symbol) {
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ArrayList<Integer> valueList = symbol.getValueList();
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if (symbol instanceof ArraySymbol) {
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ArrayList<IrConstant> elements = new ArrayList<>();
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for (int i = 0; i < valueList.size(); i++) {
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elements.add(new IrConstantInt(valueList.get(i)));
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}
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return new IrConstantArray(symbol.getName(), elements, ((ArraySymbol) symbol).getDim());
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} else {
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return valueList.isEmpty() ? new IrConstantInt(0) : new IrConstantInt(valueList.get(0));
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}
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}
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}
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