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refactor(irgen): 完善irgen代码和文档，提升扩展兼容性

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This commit is contained in:
jing
2026-03-17 19:03:49 +08:00
parent a091d9108a
commit f19d23c656
8 changed files with 115 additions and 72 deletions
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10
include/irgen/IRGen.h
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@@ -22,27 +22,25 @@ class IRGenImpl {
public:
IRGenImpl(ir::Module& module, const SemanticContext& sema);
void Gen(SysYParser::CompUnitContext& cu);
void Gen(SysYParser::CompUnitContext& cu);
private:
void GenFuncDef(SysYParser::FuncDefContext& func);
void GenBlock(SysYParser::BlockContext& block);
void GenBlock(SysYParser::BlockStmtContext& block);
bool GenBlockItem(SysYParser::BlockItemContext& item);
void GenDecl(SysYParser::DeclContext& decl);
bool GenStmt(SysYParser::StmtContext& stmt);
void GenVarDecl(SysYParser::VarDeclContext& decl);
void GenVarDef(SysYParser::VarDefContext& decl);
void GenReturnStmt(SysYParser::ReturnStmtContext& ret);
ir::Value* GenExpr(SysYParser::ExpContext& expr);
ir::Value* GenAddExpr(SysYParser::AddExpContext& add);
ir::Value* GenPrimary(SysYParser::PrimaryContext& primary);
ir::Module& module_;
const SemanticContext& sema_;
ir::Function* func_;
ir::IRBuilder builder_;
// 名称绑定由 Sema 负责；IRGen 只维护“声明 -> 存储槽位”的代码生成状态。
std::unordered_map<SysYParser::VarDeclContext*, ir::Value*> storage_map_;
std::unordered_map<SysYParser::VarDefContext*, ir::Value*> storage_map_;
};
std::unique_ptr<ir::Module> GenerateIR(SysYParser::CompUnitContext& tree,