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feat(ir): 重构指针操作API并优化数组访问逻辑

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- 将scc_ir_builder_get_ptr重命名为scc_ir_builder_get_elem_ptr以更好地反映其功能
- 移除旧的GET_PTR相关枚举和结构体定义
- 更新IR构建器中指针类型的处理逻辑，支持数组元素指针计算
- 在代码生成阶段正确处理元素指针操作的索引计算

fix(ast2ir): 修正数组下标表达式的指针获取操作

- 将数组访问中的get_ptr调用替换为get_elem_ptr
- 确保数组元素访问使用正确的IR指令

perf(runtime): 优化fprintf函数的大字符串处理性能

- 实现动态缓冲区分配策略，小字符串使用栈缓冲区，大字符串使用堆分配
- 避免固定大小缓冲区可能导致的截断问题
- 添加适当的内存清理机制
This commit is contained in:
zzy
2026-04-11 10:12:22 +08:00
parent eeb4c4fc3c
commit 053c6abf51
9 changed files with 106 additions and 63 deletions
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34
libs/ir/src/ir_builder.c
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@@ -227,19 +227,33 @@ scc_ir_value_ref_t scc_ir_builder_store(scc_ir_builder_t *builder,
return value_ref;
}
scc_ir_value_ref_t scc_ir_builder_get_ptr(scc_ir_builder_t *builder,
scc_ir_value_ref_t target,
scc_ir_value_ref_t index) {
scc_ir_value_ref_t scc_ir_builder_get_elem_ptr(scc_ir_builder_t *builder,
scc_ir_value_ref_t target,
scc_ir_value_ref_t index) {
scc_ir_value_t get_ptr_node = {0};
get_ptr_node.tag = SCC_IR_VALUE_TAG_GET_PTR;
get_ptr_node.data.get_ptr.src_addr = target;
get_ptr_node.data.get_ptr.index = index;
get_ptr_node.tag = SCC_IR_VALUE_TAG_GET_ELEM_PTR;
get_ptr_node.data.get_elem_ptr.src_addr = target;
get_ptr_node.data.get_elem_ptr.index = index;
// 类型应与源地址相同（都是指针）
scc_ir_value_t *src_node =
scc_ir_module_get_value(GET_MODULE(builder), target);
if (src_node) {
get_ptr_node.type = src_node->type;
scc_ir_type_t *type =
scc_ir_module_get_type_by_value(GET_MODULE(builder), target);
Assert(type != nullptr);
if (type->tag == SCC_IR_TYPE_PTR) {
scc_ir_type_t *base_type = scc_ir_module_get_type(
GET_MODULE(builder), type->data.pointer.base);
if (base_type->tag == SCC_IR_TYPE_ARRAY) {
// FIXME GEP maybe multiple levels
get_ptr_node.type = scc_ir_builder_type(
builder, &(scc_ir_type_t){
.tag = SCC_IR_TYPE_PTR,
.data.pointer.base = base_type->data.array.base,
});
} else {
get_ptr_node.type = scc_ir_builder_type(builder, type);
}
} else {
get_ptr_node.type = scc_ir_builder_type(builder, type);
}
scc_ir_value_ref_t value_ref =