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refactor(ir): 将IR节点重构为值引用并添加字符串字面量支持

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- 将scc_ir_node_ref_t重命名为scc_ir_value_ref_t，并更新所有相关API
- 修改IR定义中的节点标签枚举为值标签枚举(scc_ir_node_tag_t -> scc_ir_value_tag_t)
- 更新AST到IR转换器中所有节点引用的类型声明
- 添加对内置类型(VOID, CHAR, INT等)的完整映射实现
- 实现字符串字面量的常量数组创建功能
- 更新项目名称从"Simple Modual C Compiler"为"Simple C Compiler"
- 在Doxyfile中排除external目录的文档生成
- 移除未使用的strpool字段并重命名decl到IR的映射表

BREAKING CHANGE: IR节点引用类型已更改，所有使用scc_ir_node_ref_t的地方需
替换为scc_ir_value_ref_t。
This commit is contained in:
zzy
2026-03-31 11:42:14 +08:00
parent 4ddad7b456
commit 78e7c800ba
22 changed files with 992 additions and 727 deletions
Download Patch File Download Diff File Expand all files Collapse all files

153
libs/ir/include/ir_builder.h
View File

@@ -39,16 +39,8 @@ scc_ir_func_ref_t scc_ir_builder_func(scc_ir_builder_t *builder,
scc_ir_type_ref_t scc_ir_builder_type(scc_ir_builder_t *builder,
const scc_ir_type_t *type_desc);
// TODO
static inline scc_ir_node_ref_t
scc_ir_builder_const_int(scc_ir_builder_t *builder, scc_ir_type_ref_t type,
scc_ir_const_int_t value) {
scc_ir_node_t node;
scc_ir_node_init(&node, null, SCC_IR_NODE_CONST_INT);
node.data.const_int = value;
node.type = type;
return scc_ir_module_add_node(&builder->cprog->module, &node);
}
void scc_ir_builder_add_instr(scc_ir_builder_t *builder,
scc_ir_value_ref_t instr);
#define SCC_IR_BUILDER_TYPE_FUNC(scc_type) \
[[maybe_unused]] static inline scc_ir_type_ref_t \
@@ -76,6 +68,78 @@ SCC_IR_BUILDER_TYPE_FUNC(f32)
SCC_IR_BUILDER_TYPE_FUNC(f64)
SCC_IR_BUILDER_TYPE_FUNC(f128)
// TODO
static inline scc_ir_value_ref_t
scc_ir_builder_const_int(scc_ir_builder_t *builder, scc_ir_type_ref_t type,
scc_ir_const_int_t value) {
scc_ir_value_t node;
scc_ir_node_init(&node, null, SCC_IR_VALUE_TAG_CONST_INT);
node.data.const_int = value;
node.type = type;
return scc_ir_module_add_value(&builder->cprog->module, &node);
}
static inline scc_ir_value_ref_t
scc_ir_builder_const_string(scc_ir_builder_t *builder, const char *str,
usize len) {
scc_ir_type_ref_t u8_type = scc_ir_builder_type_u8(builder);
scc_ir_type_t array_type = {
.tag = SCC_IR_TYPE_ARRAY,
.data.array.base = u8_type,
.data.array.len = len + 1, // 包含 null 结尾
};
scc_ir_type_ref_t array_type_ref =
scc_ir_ctx_get_type(&builder->ctx, &array_type);
// 2. 创建指针类型：指向 array_type
scc_ir_type_t ptr_type = {.tag = SCC_IR_TYPE_PTR,
.data.pointer.base = u8_type};
scc_ir_type_ref_t ptr_type_ref =
scc_ir_ctx_get_type(&builder->ctx, &ptr_type);
// 5. 创建聚合节点
scc_ir_value_t const_array_value = {
.tag = SCC_IR_VALUE_TAG_CONST_ARRAY,
.type = array_type_ref,
.data.const_array.base_type = u8_type,
};
char *buff = scc_malloc(len + 1);
Assert(buff);
for (usize i = 0; i < len; i++) {
buff[i] = str[i];
}
buff[len] = '\0';
scc_vec_unsafe_from_buffer(const_array_value.data.const_array.elements,
buff, len + 1);
scc_ir_value_ref_t const_array_ref =
scc_ir_module_add_value(builder->ctx.module, &const_array_value);
Assert(const_array_ref != SCC_IR_REF_NULL);
// 3. 创建全局变量节点，类型为指针，初始值指向常量数组
char *name = scc_malloc(32);
// FIXME MAYBE MEMORY LEAK
scc_ir_value_ref_t global_value_ref = scc_ir_module_add_value(
builder->ctx.module, &(scc_ir_value_t){
.name = name,
.tag = SCC_IR_VALUE_TAG_GLOBAL_ALLOC,
.type = ptr_type_ref,
.data.global_alloc.value = const_array_ref,
});
scc_snprintf(name, 32, "$G%u", global_value_ref);
scc_vec_push(builder->cprog->global_vals, global_value_ref);
// scc_hashtable_insert(builder);
scc_ir_value_ref_t pointer_to_global_value = scc_ir_module_add_value(
builder->ctx.module, &(scc_ir_value_t){
.tag = SCC_IR_VALUE_TAG_GET_PTR,
.data.get_ptr.src_addr = global_value_ref,
.data.get_ptr.index = SCC_IR_VALUE_TAG_NULL,
});
scc_ir_builder_add_instr(builder, pointer_to_global_value);
return pointer_to_global_value;
}
/**
* @brief 开始构建函数
* @param func_ref 函数引用
@@ -129,38 +193,38 @@ void scc_ir_builder_set_current_bblock(scc_ir_builder_t *builder,
* @param type 分配的类型
* @param name 变量名（可为NULL）
*/
scc_ir_node_ref_t scc_ir_builder_alloca(scc_ir_builder_t *builder,
scc_ir_type_ref_t type,
const char *name);
scc_ir_value_ref_t scc_ir_builder_alloca(scc_ir_builder_t *builder,
scc_ir_type_ref_t type,
const char *name);
scc_ir_node_ref_t scc_ir_builder_func_arg_ref(scc_ir_builder_t *builder,
scc_ir_type_ref_t type,
const char *name, usize arg_idx);
scc_ir_value_ref_t scc_ir_builder_func_arg_ref(scc_ir_builder_t *builder,
scc_ir_type_ref_t type,
const char *name, usize arg_idx);
/**
* @brief 创建load指令
* @param ptr 指针操作数
*/
scc_ir_node_ref_t scc_ir_builder_load(scc_ir_builder_t *builder,
scc_ir_node_ref_t ptr);
scc_ir_value_ref_t scc_ir_builder_load(scc_ir_builder_t *builder,
scc_ir_value_ref_t ptr);
/**
* @brief 创建store指令
* @param ptr 目标指针
* @param value 要存储的值
*/
scc_ir_node_ref_t scc_ir_builder_store(scc_ir_builder_t *builder,
scc_ir_node_ref_t ptr,
scc_ir_node_ref_t value);
scc_ir_value_ref_t scc_ir_builder_store(scc_ir_builder_t *builder,
scc_ir_value_ref_t ptr,
scc_ir_value_ref_t value);
/**
* @brief 创建getptr指令（指针运算）
* @param ptr 基础指针
* @param index 索引值
*/
scc_ir_node_ref_t scc_ir_builder_get_ptr(scc_ir_builder_t *builder,
scc_ir_node_ref_t ptr,
scc_ir_node_ref_t index);
scc_ir_value_ref_t scc_ir_builder_get_ptr(scc_ir_builder_t *builder,
scc_ir_value_ref_t ptr,
scc_ir_value_ref_t index);
/**
* @brief 创建二元运算指令
@@ -168,10 +232,10 @@ scc_ir_node_ref_t scc_ir_builder_get_ptr(scc_ir_builder_t *builder,
* @param lhs 左操作数
* @param rhs 右操作数
*/
scc_ir_node_ref_t scc_ir_builder_binop(scc_ir_builder_t *builder,
scc_ir_op_type_t op,
scc_ir_node_ref_t lhs,
scc_ir_node_ref_t rhs);
scc_ir_value_ref_t scc_ir_builder_binop(scc_ir_builder_t *builder,
scc_ir_op_type_t op,
scc_ir_value_ref_t lhs,
scc_ir_value_ref_t rhs);
/**
* @brief 创建比较指令
@@ -179,16 +243,17 @@ scc_ir_node_ref_t scc_ir_builder_binop(scc_ir_builder_t *builder,
* @param lhs 左操作数
* @param rhs 右操作数
*/
scc_ir_node_ref_t scc_ir_builder_cmp(scc_ir_builder_t *builder,
scc_ir_op_type_t op, scc_ir_node_ref_t lhs,
scc_ir_node_ref_t rhs);
scc_ir_value_ref_t scc_ir_builder_cmp(scc_ir_builder_t *builder,
scc_ir_op_type_t op,
scc_ir_value_ref_t lhs,
scc_ir_value_ref_t rhs);
/**
* @brief 创建跳转指令（无条件）
* @param target 目标基本块
*/
scc_ir_node_ref_t scc_ir_builder_jump(scc_ir_builder_t *builder,
scc_ir_bblock_ref_t target);
scc_ir_value_ref_t scc_ir_builder_jump(scc_ir_builder_t *builder,
scc_ir_bblock_ref_t target);
/**
* @brief 创建条件分支指令
@@ -196,10 +261,10 @@ scc_ir_node_ref_t scc_ir_builder_jump(scc_ir_builder_t *builder,
* @param true_target 条件为真时的目标
* @param false_target 条件为假时的目标
*/
scc_ir_node_ref_t scc_ir_builder_branch(scc_ir_builder_t *builder,
scc_ir_node_ref_t cond,
scc_ir_bblock_ref_t true_target,
scc_ir_bblock_ref_t false_target);
scc_ir_value_ref_t scc_ir_builder_branch(scc_ir_builder_t *builder,
scc_ir_value_ref_t cond,
scc_ir_bblock_ref_t true_target,
scc_ir_bblock_ref_t false_target);
/**
* @brief 创建函数调用指令
@@ -207,21 +272,21 @@ scc_ir_node_ref_t scc_ir_builder_branch(scc_ir_builder_t *builder,
* @param args 参数列表
* @param arg_count 参数数量
*/
scc_ir_node_ref_t scc_ir_builder_call(scc_ir_builder_t *builder,
scc_ir_func_ref_t callee,
const scc_ir_node_ref_t *args,
usize arg_count);
scc_ir_value_ref_t scc_ir_builder_call(scc_ir_builder_t *builder,
scc_ir_func_ref_t callee,
const scc_ir_value_ref_t *args,
usize arg_count);
/**
* @brief 创建返回指令（带返回值）
* @param value 返回值
*/
scc_ir_node_ref_t scc_ir_builder_ret(scc_ir_builder_t *builder,
scc_ir_node_ref_t value);
scc_ir_value_ref_t scc_ir_builder_ret(scc_ir_builder_t *builder,
scc_ir_value_ref_t value);
/**
* @brief 创建返回指令（void返回）
*/
scc_ir_node_ref_t scc_ir_builder_ret_void(scc_ir_builder_t *builder);
scc_ir_value_ref_t scc_ir_builder_ret_void(scc_ir_builder_t *builder);
#endif /* __SCC_IR_BUILDER_H__ */