zzy
cec96333e7
- 新增 scc_ast2ir_promote.c 实现整数提升(6.3.1.1)和寻常算术转换(6.3.1.8) - 重构 HIR Builder: bblock → create_bblock + append_bblock，引入BBList链表管理 - AST2IR 全面集成类型提升：二元运算、赋值、函数调用参数、自增/自减操作符 - 变参函数支持：跳过 ... 假参数，实现默认参数提升(float→double等) - 简化 HIR Dump 实现 - MIR: Win64 ABI改进、x86指令选择优化 - 新增 printf 测试用例
314 lines
12 KiB
C
314 lines
12 KiB
C
#ifndef __SCC_HIR_BUILDER_H__
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#define __SCC_HIR_BUILDER_H__
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#include "scc_hir.h"
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#include "scc_hir_prog.h"
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typedef struct scc_hir_builder scc_hir_builder_t;
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/**
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* @brief IR 构建器上下文
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*
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* 负责管理 IR 构建过程中的所有状态：
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* - 类型统一化（type uniquing）
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* - 符号命名分配
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* - 内存管理
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* - 当前构建位置（函数、基本块）
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*/
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struct scc_hir_builder {
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scc_hir_cprog_t *cprog;
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scc_hir_func_ref_t current_func; ///< 当前正在构建的函数
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scc_hir_bblock_ref_t current_bblock; ///< 当前基本块
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scc_hashtable_t type_uniquing; // 类型哈希表：hash -> type_ref
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scc_hashtable_t const_pool; // 常量哈希表：hash -> node_ref
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scc_hashtable_t func_decl_set; // 函数声明集合：name -> func_ref
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#ifndef SCC_NO_DEBUG
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int borrow_depth;
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const char *dbg_file;
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int dbg_line;
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#endif
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};
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#ifndef SCC_NO_DEBUG
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#define SCC_HIR_BUILDER_BEGIN_BORROW(builder, ptr_var, ptr_expr) \
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do { \
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(builder)->borrow_depth++; \
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(builder)->dbg_file = __FILE__; \
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(builder)->dbg_line = __LINE__; \
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ptr_var = (ptr_expr); \
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} while (0)
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#define SCC_HIR_BUILDER_END_BORROW(builder) \
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do { \
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(builder)->borrow_depth--; \
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} while (0)
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#define SCC_HIR_BUILDER_CHECK_NO_BORROW(builder) \
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do { \
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if ((builder)->borrow_depth != 0) { \
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Panic("IR Builder: attempt to reallocate while borrowed at %s:%d", \
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(builder)->dbg_file, (builder)->dbg_line); \
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} \
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} while (0)
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#else
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#define SCC_HIR_BUILDER_BEGIN_BORROW(builder, ptr_var, ptr_expr) \
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ptr_var = (ptr_expr)
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#define SCC_HIR_BUILDER_END_BORROW(builder) ((void)0)
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#define SCC_HIR_BUILDER_CHECK_NO_BORROW(builder) ((void)0)
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#endif
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/**
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* @brief 初始化 IR 构建器
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*/
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void scc_hir_builder_init(scc_hir_builder_t *builder, scc_hir_cprog_t *cprog);
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/**
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* @brief 销毁 IR 构建器及其所有资源
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*/
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void scc_hir_builder_drop(scc_hir_builder_t *builder);
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static inline scc_hir_module_t *
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scc_hir_builder_get_module(scc_hir_builder_t *builder) {
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return &builder->cprog->module;
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}
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scc_hir_func_ref_t scc_hir_builder_func(scc_hir_builder_t *builder,
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scc_hir_type_ref_t type_ref,
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const char *name);
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scc_hir_type_ref_t scc_hir_builder_type(scc_hir_builder_t *builder,
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const scc_hir_type_t *type_desc);
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void scc_hir_builder_add_instr(scc_hir_builder_t *builder,
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scc_hir_value_ref_t instr);
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scc_hir_value_ref_t scc_hir_builder_global_alloca(scc_hir_builder_t *builder,
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scc_hir_type_ref_t type,
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scc_hir_value_ref_t value);
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/**
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* @brief 创建alloca指令（在当前基本块中）
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* @param type 分配的类型
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* @param name 变量名（可为nullptr）
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*/
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scc_hir_value_ref_t scc_hir_builder_alloca(scc_hir_builder_t *builder,
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scc_hir_type_ref_t type,
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const char *name);
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#define SCC_HIR_BUILDER_TYPE_FUNC(scc_type) \
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SCC_MAYBE_UNUSED static inline scc_hir_type_ref_t \
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scc_hir_builder_type_##scc_type(scc_hir_builder_t *builder) { \
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scc_hir_type_t type_desc; \
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scc_hir_type_init(&type_desc, SCC_HIR_TYPE_##scc_type); \
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return scc_hir_builder_type(builder, &type_desc); \
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}
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SCC_HIR_BUILDER_TYPE_FUNC(unknown)
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SCC_HIR_BUILDER_TYPE_FUNC(void)
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SCC_HIR_BUILDER_TYPE_FUNC(i8)
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SCC_HIR_BUILDER_TYPE_FUNC(i16)
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SCC_HIR_BUILDER_TYPE_FUNC(i32)
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SCC_HIR_BUILDER_TYPE_FUNC(i64)
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SCC_HIR_BUILDER_TYPE_FUNC(i128)
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SCC_HIR_BUILDER_TYPE_FUNC(u8)
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SCC_HIR_BUILDER_TYPE_FUNC(u16)
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SCC_HIR_BUILDER_TYPE_FUNC(u32)
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SCC_HIR_BUILDER_TYPE_FUNC(u64)
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SCC_HIR_BUILDER_TYPE_FUNC(u128)
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// SCC_HIR_BUILDER_TYPE_FUNC(f8)
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SCC_HIR_BUILDER_TYPE_FUNC(f16)
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SCC_HIR_BUILDER_TYPE_FUNC(f32)
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SCC_HIR_BUILDER_TYPE_FUNC(f64)
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SCC_HIR_BUILDER_TYPE_FUNC(f128)
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scc_hir_value_ref_t scc_hir_builder_builtin_memcpy(scc_hir_builder_t *builder,
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scc_hir_value_ref_t dest,
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scc_hir_value_ref_t src,
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scc_hir_value_ref_t len);
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// TODO
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static inline scc_hir_value_ref_t
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scc_hir_builder_integer(scc_hir_builder_t *builder, scc_hir_type_ref_t type,
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scc_ap_t *val) {
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Assert(builder != nullptr && val != nullptr);
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scc_hir_value_t value;
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scc_hir_value_init(&value, nullptr, SCC_HIR_VALUE_TAG_INTEGER);
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// FIXME assign
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value.data.integer = *val;
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value.type = type;
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return scc_hir_module_add_value(&builder->cprog->module, &value);
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}
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scc_hir_value_ref_t scc_hir_builder_const_string(scc_hir_builder_t *builder,
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const char *str, usize len);
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/**
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* @brief 创建类型转换指令（SEXT/ZEXT/TRUNC）
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* @param operand 被转换的值
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* @param target_type 目标类型
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* @param conv_kind 转换种类（SCC_HIR_CONV_SEXT/ZEXT/TRUNC）
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*/
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scc_hir_value_ref_t scc_hir_builder_conv(scc_hir_builder_t *builder,
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scc_hir_value_ref_t operand,
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scc_hir_type_ref_t target_type,
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int conv_kind);
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/**
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* @brief 开始构建函数
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* @param func_ref 函数引用
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* @param param_names 参数名列表（可为nullptr）
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* @return void
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*/
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void scc_hir_builder_begin_func(scc_hir_builder_t *builder,
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scc_hir_func_ref_t func_ref);
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/**
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* @brief 结束当前函数的构建
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*/
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void scc_hir_builder_end_func(scc_hir_builder_t *builder);
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/**
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* @brief 获取当前正在构建的函数
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*/
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scc_hir_func_ref_t scc_hir_builder_current_func(scc_hir_builder_t *builder);
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/**
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* @brief 创建一个新的基本块，并自动添加到当前函数中，但不改变当前块。
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* @param builder IR构建器
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* @param label 基本块标签（可为 nullptr，自动生成）
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* @return 新基本块的引用
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*/
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scc_hir_bblock_ref_t scc_hir_builder_bblock(scc_hir_builder_t *builder,
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const char *label);
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/**
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* @brief 创建一个新的基本块（仅分配对象，不添加到当前函数的基本块列表）
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* @param label 基本块标签（可为 nullptr）
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* @return 基本块引用（真实 ID）
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*/
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scc_hir_bblock_ref_t scc_hir_builder_create_bblock(scc_hir_builder_t *builder,
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const char *label);
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/**
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* @brief 将指定基本块追加到当前函数的基本块列表末尾
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* @param bblock 基本块引用
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*/
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void scc_hir_builder_append_bblock(scc_hir_builder_t *builder,
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scc_hir_bblock_ref_t bblock);
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/**
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* @brief 开始构建新的基本块
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* @param label 基本块标签（可为nullptr，自动生成）
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* @return 基本块引用
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*/
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scc_hir_bblock_ref_t scc_hir_builder_begin_bblock(scc_hir_builder_t *builder,
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const char *label);
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/**
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* @brief 结束当前基本块的构建
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*/
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void scc_hir_builder_end_bblock(scc_hir_builder_t *builder);
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scc_hir_func_ref_t scc_hir_builder_current_bblock(scc_hir_builder_t *builder);
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/**
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* @brief 设置当前基本块
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*/
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void scc_hir_builder_set_current_bblock(scc_hir_builder_t *builder,
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scc_hir_bblock_ref_t bblock);
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scc_hir_value_ref_t scc_hir_builder_func_arg_ref(scc_hir_builder_t *builder,
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scc_hir_type_ref_t type,
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const char *name,
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usize arg_idx);
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/**
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* @brief 创建load指令
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* @param ptr 指针操作数
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*/
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scc_hir_value_ref_t scc_hir_builder_load(scc_hir_builder_t *builder,
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scc_hir_value_ref_t ptr);
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/**
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* @brief 创建store指令
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* @param ptr 目标指针
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* @param value 要存储的值
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*/
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scc_hir_value_ref_t scc_hir_builder_store(scc_hir_builder_t *builder,
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scc_hir_value_ref_t ptr,
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scc_hir_value_ref_t value);
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/**
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* @brief 创建getptr指令（指针运算）
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* @param ptr 基础指针
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* @param index 索引值
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*/
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scc_hir_value_ref_t scc_hir_builder_get_elem_ptr(scc_hir_builder_t *builder,
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scc_hir_value_ref_t ptr,
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scc_hir_value_ref_t index);
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/**
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* @brief 创建二元运算指令
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* @param op 操作符
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* @param lhs 左操作数
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* @param rhs 右操作数
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*/
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scc_hir_value_ref_t scc_hir_builder_binop(scc_hir_builder_t *builder,
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scc_hir_op_type_t op,
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scc_hir_value_ref_t lhs,
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scc_hir_value_ref_t rhs);
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/**
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* @brief 创建比较指令
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* @param op 比较操作符
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* @param lhs 左操作数
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* @param rhs 右操作数
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*/
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scc_hir_value_ref_t scc_hir_builder_cmp(scc_hir_builder_t *builder,
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scc_hir_op_type_t op,
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scc_hir_value_ref_t lhs,
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scc_hir_value_ref_t rhs);
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/**
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* @brief 创建跳转指令（无条件）
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* @param target 目标基本块
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*/
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scc_hir_value_ref_t scc_hir_builder_jump(scc_hir_builder_t *builder,
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scc_hir_bblock_ref_t target);
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/**
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* @brief 创建条件分支指令
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* @param cond 条件值
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* @param true_target 条件为真时的目标
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* @param false_target 条件为假时的目标
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*/
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scc_hir_value_ref_t scc_hir_builder_branch(scc_hir_builder_t *builder,
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scc_hir_value_ref_t cond,
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scc_hir_bblock_ref_t true_target,
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scc_hir_bblock_ref_t false_target);
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/**
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* @brief 创建函数调用指令
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* @param callee 被调用函数
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* @param args 参数列表
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* @param arg_count 参数数量
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*/
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scc_hir_value_ref_t scc_hir_builder_call(scc_hir_builder_t *builder,
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scc_hir_func_ref_t callee,
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const scc_hir_value_ref_t *args,
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usize arg_count);
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/**
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* @brief 创建返回指令（带返回值）
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* @param value 返回值
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*/
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scc_hir_value_ref_t scc_hir_builder_ret(scc_hir_builder_t *builder,
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scc_hir_value_ref_t value);
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/**
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* @brief 创建返回指令（void返回）
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*/
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scc_hir_value_ref_t scc_hir_builder_ret_void(scc_hir_builder_t *builder);
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#endif /* __SCC_HIR_BUILDER_H__ */
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