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refactor(ast2ir): 重构ABI类型系统并修复union结构问题

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- 将scc_ast_def.h中的attr_of从union改为struct以修复结构定义问题
- 添加type_abi依赖到ast2ir模块的cbuild.toml配置文件中
- 重命名scc_ast2ir.h中的abi字段为type_abi，并更新相关初始化函数签名
- 移除废弃的scc_abi_type.h和相关平台ABI头文件
- 添加辅助函数is_variadic_marker和fixed_param_count用于处理可变参数
- 添加数组和聚合类型初始化的辅助函数
This commit is contained in:
zzy
2026-06-01 12:14:13 +08:00
parent 8b817da3b6
commit 31d7e91ef1
45 changed files with 1918 additions and 1551 deletions
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249
libs/ir/hir/src/scc_hir_layout.c Normal file
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#include <scc_hir_layout.h>
int scc_hir_type_align(scc_hir_module_t *mod, scc_hir_type_ref_t ref,
const scc_type_abi_t *abi) {
scc_hir_type_t *type = scc_hir_module_get_type(mod, ref);
if (!type)
return 0;
switch (type->tag) {
case SCC_HIR_TYPE_void:
case SCC_HIR_TYPE_FUNC:
case SCC_HIR_TYPE_unknown:
return 1; // void/func 不占空间, 对齐为 1
case SCC_HIR_TYPE_i8:
case SCC_HIR_TYPE_u8:
return scc_type_abi_get_type_align(abi, 1) * 8;
case SCC_HIR_TYPE_i16:
case SCC_HIR_TYPE_u16:
case SCC_HIR_TYPE_f16:
return scc_type_abi_get_type_align(abi, 2) * 8;
case SCC_HIR_TYPE_i32:
case SCC_HIR_TYPE_u32:
case SCC_HIR_TYPE_f32:
return scc_type_abi_get_type_align(abi, 4) * 8;
case SCC_HIR_TYPE_i64:
case SCC_HIR_TYPE_u64:
case SCC_HIR_TYPE_f64:
return scc_type_abi_get_type_align(abi, 8) * 8;
case SCC_HIR_TYPE_i128:
case SCC_HIR_TYPE_u128:
case SCC_HIR_TYPE_f128:
return scc_type_abi_get_type_align(abi, 16) * 8;
case SCC_HIR_TYPE_PTR:
return abi->ptr_align * 8;
case SCC_HIR_TYPE_ARRAY: {
return scc_hir_type_align(mod, type->data.array.base, abi);
}
case SCC_HIR_TYPE_STRUCT: {
int max_align_bits = 0;
for (usize i = 0; i < scc_vec_size(type->data.aggregate.fields); i++) {
scc_hir_type_ref_t fr = scc_vec_at(type->data.aggregate.fields, i);
int fa_bits = scc_hir_type_align(mod, fr, abi);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa2_bits = scc_type_abi_get_field_align(abi, fs_bits / 8, fa_bits / 8) * 8;
if (fa2_bits > max_align_bits)
max_align_bits = fa2_bits;
}
return scc_type_abi_get_aggregate_align(abi, max_align_bits / 8) * 8;
}
case SCC_HIR_TYPE_UNION: {
int max_align_bits = 0;
for (usize i = 0; i < scc_vec_size(type->data.aggregate.fields); i++) {
scc_hir_type_ref_t fr = scc_vec_at(type->data.aggregate.fields, i);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa_bits = scc_hir_type_align(mod, fr, abi);
(void)fs_bits;
if (fa_bits > max_align_bits)
max_align_bits = fa_bits;
}
return scc_type_abi_get_aggregate_align(abi, max_align_bits / 8) * 8;
}
default:
return 1;
}
}
int scc_hir_type_size(scc_hir_module_t *mod, scc_hir_type_ref_t ref,
const scc_type_abi_t *abi) {
scc_hir_type_t *type = scc_hir_module_get_type(mod, ref);
if (!type)
return 0;
switch (type->tag) {
case SCC_HIR_TYPE_void:
case SCC_HIR_TYPE_FUNC:
case SCC_HIR_TYPE_unknown:
return 0;
case SCC_HIR_TYPE_i8:
case SCC_HIR_TYPE_u8:
return 8;
case SCC_HIR_TYPE_i16:
case SCC_HIR_TYPE_u16:
case SCC_HIR_TYPE_f16:
return 16;
case SCC_HIR_TYPE_i32:
case SCC_HIR_TYPE_u32:
case SCC_HIR_TYPE_f32:
return 32;
case SCC_HIR_TYPE_i64:
case SCC_HIR_TYPE_u64:
case SCC_HIR_TYPE_f64:
return 64;
case SCC_HIR_TYPE_i128:
case SCC_HIR_TYPE_u128:
case SCC_HIR_TYPE_f128:
return 128;
case SCC_HIR_TYPE_PTR:
return abi->ptr_size * 8;
case SCC_HIR_TYPE_ARRAY: {
int es_bits = scc_hir_type_size(mod, type->data.array.base, abi);
return es_bits * (int)type->data.array.len;
}
case SCC_HIR_TYPE_STRUCT: {
int offset_bits = 0, max_align_bits = 0;
for (usize i = 0; i < scc_vec_size(type->data.aggregate.fields); i++) {
scc_hir_type_ref_t fr = scc_vec_at(type->data.aggregate.fields, i);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa_bits = scc_hir_type_align(mod, fr, abi);
int fa2_bits = scc_type_abi_get_field_align(abi, fs_bits / 8, fa_bits / 8) * 8;
offset_bits = SCC_ALIGN_UP(offset_bits, fa2_bits);
offset_bits += fs_bits;
if (fa2_bits > max_align_bits)
max_align_bits = fa2_bits;
}
return SCC_ALIGN_UP(offset_bits,
scc_type_abi_get_aggregate_align(abi, max_align_bits / 8) * 8);
}
case SCC_HIR_TYPE_UNION: {
int max_size_bits = 0, max_align_bits = 0;
for (usize i = 0; i < scc_vec_size(type->data.aggregate.fields); i++) {
scc_hir_type_ref_t fr = scc_vec_at(type->data.aggregate.fields, i);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa_bits = scc_hir_type_align(mod, fr, abi);
if (fs_bits > max_size_bits)
max_size_bits = fs_bits;
if (fa_bits > max_align_bits)
max_align_bits = fa_bits;
}
return SCC_ALIGN_UP(max_size_bits,
scc_type_abi_get_aggregate_align(abi, max_align_bits / 8) * 8);
}
default:
return 0;
}
}
int scc_hir_field_offset(scc_hir_module_t *mod, scc_hir_type_ref_t ref,
int field_idx, const scc_type_abi_t *abi) {
scc_hir_type_t *type = scc_hir_module_get_type(mod, ref);
if (!type || (type->tag != SCC_HIR_TYPE_STRUCT &&
type->tag != SCC_HIR_TYPE_UNION))
return 0;
if (type->tag == SCC_HIR_TYPE_UNION)
return 0; // union 所有字段偏移为 0
int offset_bits = 0;
int count = (int)scc_vec_size(type->data.aggregate.fields);
if (field_idx >= count)
return 0;
for (int i = 0; i < count; i++) {
scc_hir_type_ref_t fr = scc_vec_at(type->data.aggregate.fields, (usize)i);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa_bits = scc_hir_type_align(mod, fr, abi);
int fa2_bits = scc_type_abi_get_field_align(abi, fs_bits / 8, fa_bits / 8) * 8;
offset_bits = SCC_ALIGN_UP(offset_bits, fa2_bits);
if (i == field_idx)
return offset_bits;
offset_bits += fs_bits;
}
return 0;
}
scc_hir_aggregate_layout_t *
scc_hir_aggregate_layout(scc_hir_module_t *mod, scc_hir_type_ref_t ref,
const scc_type_abi_t *abi) {
scc_hir_type_t *type = scc_hir_module_get_type(mod, ref);
if (!type || (type->tag != SCC_HIR_TYPE_STRUCT &&
type->tag != SCC_HIR_TYPE_UNION))
return NULL;
int fc = (int)scc_vec_size(type->data.aggregate.fields);
if (type->tag == SCC_HIR_TYPE_UNION) {
int max_size_bits = 0, max_align_bits = 0;
for (usize i = 0; i < scc_vec_size(type->data.aggregate.fields); i++) {
scc_hir_type_ref_t fr = scc_vec_at(type->data.aggregate.fields, i);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa_bits = scc_hir_type_align(mod, fr, abi);
if (fs_bits > max_size_bits)
max_size_bits = fs_bits;
if (fa_bits > max_align_bits)
max_align_bits = fa_bits;
}
scc_hir_aggregate_layout_t *al =
scc_malloc(sizeof(scc_hir_aggregate_layout_t) +
(usize)fc * sizeof(scc_hir_field_layout_t));
al->size = SCC_ALIGN_UP(max_size_bits, max_align_bits);
al->align = max_align_bits;
al->field_count = fc;
for (int i = 0; i < fc; i++) {
scc_hir_type_ref_t fr =
scc_vec_at(type->data.aggregate.fields, (usize)i);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa_bits = scc_hir_type_align(mod, fr, abi);
al->fields[i].offset = 0;
al->fields[i].size = fs_bits;
al->fields[i].align = fa_bits;
}
return al;
}
// STRUCT
scc_hir_aggregate_layout_t *al =
scc_malloc(sizeof(scc_hir_aggregate_layout_t) +
(usize)fc * sizeof(scc_hir_field_layout_t));
al->field_count = fc;
int offset_bits = 0, max_align_bits = 0;
for (int i = 0; i < fc; i++) {
scc_hir_type_ref_t fr =
scc_vec_at(type->data.aggregate.fields, (usize)i);
int fs_bits = scc_hir_type_size(mod, fr, abi);
int fa_bits = scc_hir_type_align(mod, fr, abi);
int fa2_bits = scc_type_abi_get_field_align(abi, fs_bits / 8, fa_bits / 8) * 8;
offset_bits = SCC_ALIGN_UP(offset_bits, fa2_bits);
al->fields[i].offset = offset_bits;
al->fields[i].size = fs_bits;
al->fields[i].align = fa_bits;
offset_bits += fs_bits;
if (fa2_bits > max_align_bits)
max_align_bits = fa2_bits;
}
al->size = SCC_ALIGN_UP(offset_bits,
scc_type_abi_get_aggregate_align(abi, max_align_bits / 8) * 8);
al->align = scc_type_abi_get_aggregate_align(abi, max_align_bits / 8) * 8;
return al;
}
void scc_hir_aggregate_layout_free(scc_hir_aggregate_layout_t *layout) {
scc_free(layout);
}