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IRGenerator.h
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103 lines (63 loc) · 3.25 KB
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#pragma once
#include <algorithm>
#include "StaticScriptLexer.h"
#include "Sema/ASTVisitor.h"
#include "CodeGen/Builtin.h"
#include "Support/Alias.h"
#include "Support/Error.h"
#include "Support/LLVM.h"
class IRGenerator final : public ASTVisitor {
public:
explicit IRGenerator();
void resolve(const SharedPtr<ModuleNode> &module, const llvm::Twine &libDir);
void visit(const SharedPtr<ModuleNode> &module) override;
void visit(const SharedPtr<VarDeclNode> &varDecl) override;
void visit(const SharedPtr<ParmVarDeclNode> ¶mVarDecl) override;
void visit(const SharedPtr<FunctionDeclNode> &funcDecl) override;
void visit(const SharedPtr<BooleanLiteralExprNode> &boolLiteralExpr) override;
void visit(const SharedPtr<IntegerLiteralExprNode> &intLiteralExpr) override;
void visit(const SharedPtr<FloatLiteralExprNode> &floatLiteralExpr) override;
void visit(const SharedPtr<StringLiteralExprNode> &strLiteralExpr) override;
void visit(const SharedPtr<ArrayLiteralExprNode> &arrayLiteralExpr) override;
void visit(const SharedPtr<IdentifierExprNode> &varExpr) override;
void visit(const SharedPtr<CallExprNode> &callExpr) override;
void visit(const SharedPtr<UnaryOperatorExprNode> &uopExpr) override;
void visit(const SharedPtr<BinaryOperatorExprNode> &bopExpr) override;
void visit(const SharedPtr<ArraySubscriptExprNode> &asExpr) override;
void visit(const SharedPtr<ExprStmtNode> &exprStmt) override;
void visit(const SharedPtr<CompoundStmtNode> &compStmt) override;
void visit(const SharedPtr<VarDeclStmtNode> &varDeclStmt) override;
void visit(const SharedPtr<FunctionDeclStmtNode> &funcDeclStmt) override;
void visit(const SharedPtr<IfStmtNode> &ifStmt) override;
void visit(const SharedPtr<WhileStmtNode> &whileStmt) override;
void visit(const SharedPtr<ForStmtNode> &forStmt) override;
void visit(const SharedPtr<ContinueStmtNode> &continueStmt) override;
void visit(const SharedPtr<BreakStmtNode> &breakStmt) override;
void visit(const SharedPtr<ReturnStmtNode> &returnStmt) override;
LLVMModule &getLLVMModule() const {
return *llvmModule;
}
private:
LLVMType *getType(const SharedPtr<Type> &inputType);
void setArrayElement(const SharedPtr<ArraySubscriptExprNode> &asExpr, LLVMValue *valueCode);
inline LLVMValue *float2integer(LLVMValue *val) {
return llvmIRBuilder.CreateFPToSI(val, llvmIRBuilder.getInt64Ty());
}
inline LLVMValue *integer2float(LLVMValue *val) {
return llvmIRBuilder.CreateSIToFP(val, llvmIRBuilder.getDoubleTy());
}
inline void setFuncInsertPoint(LLVMFunction *func) {
LLVMBasicBlock *curBB = &(func->getBasicBlockList().back());
llvmIRBuilder.SetInsertPoint(curBB);
}
inline LLVMBasicBlock *createBasicBlock(const String &name, LLVMFunction *parent = nullptr, LLVMBasicBlock *before = nullptr) {
return LLVMBasicBlock::Create(llvmContext, name, parent, before);
}
void emitBlock(LLVMBasicBlock *bb, bool isFinished = false);
void emitBranch(LLVMBasicBlock *targetBB);
LLVMContext llvmContext;
llvm::IRBuilder<> llvmIRBuilder;
SharedPtr<LLVMModule> llvmModule;
LLVMFunction *mainFn = nullptr;
LLVMFunction *curFn = nullptr;
};