stage1 实现ir2vm 修复nob test命令的构建问题

stage1/spl_layout.h

@@ -0,0 +1,56 @@
+#ifndef __SPL_LAYOUT_H__
+#define __SPL_LAYOUT_H__
+
+#include "spl_type.h"
+
+typedef struct {
+    usize size;
+    usize abi_align;
+    usize pref_align;
+    VEC(usize) invalid_values;
+} spl_layout_scalar_t;
+
+typedef struct {
+    usize add_space;
+    usize ptr_size;
+    usize ptr_align;
+} spl_layout_ptr_t;
+
+typedef struct {
+    bool allow_field_reordering;
+    enum { ALIGN_MAX, ALIGN_FIXED, ALIGN_MAX_WITH_MIN } align_rule;
+    usize fixed_align;
+} spl_layout_agg_t;
+
+typedef struct {
+    usize size_bits;
+    usize align_bits;
+    VEC(usize) field_bit_offsets;
+    VEC(usize) field_bit_sizes;
+    bool resolved;
+} spl_layout_info_t;
+
+typedef struct {
+    enum { SPL_BIG_ENDIAN, SPL_LITTLE_ENDIAN } endian; // TODO 更多位存储方式
+
+} spl_layout_target_t;
+
+typedef struct {
+    VEC(spl_layout_scalar_t) scalars;
+    VEC(spl_layout_ptr_t) pointers;
+    spl_layout_agg_t aggregate;
+    VEC(spl_layout_info_t) infos;
+    spl_layout_target_t *target;
+} spl_layout_t;
+
+void spl_layout_init(spl_layout_t *layout, spl_layout_target_t *target);
+void spl_layout_drop(spl_layout_t *layout);
+
+void spl_layout_resolve(spl_layout_t *layout, spl_type_t *type);
+
+void spl_layout_add_scalar(spl_layout_t *layout, usize size, usize abi_align);
+void spl_layout_add_ptr(spl_layout_t *layout, usize addr_space, usize size, usize align);
+
+const spl_layout_info_t *spl_layout_info_of(spl_layout_t *layout, spl_type_id_t id);
+
+#endif /* __SPL_LAYOUT_H__ */