mirrors/Odin
1
0
Fork 0
mirror of https://github.com/odin-lang/Odin.git synced 2026-02-17 08:34:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

Basic support for global variables

Browse Source
This commit is contained in:
gingerBill
2023-07-25 13:56:28 +01:00
parent c6e4b8ed5c
commit e914d551e7
1 changed files with 22 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/tilde.cpp
View File

@@ -267,7 +267,7 @@ struct cgGlobalVariable {
};
// Returns already_has_entry_point
gb_internal bool cg_global_variables_create(cgModule *m) {
gb_internal bool cg_global_variables_create(cgModule *m, Array<cgGlobalVariable> *global_variables) {
isize global_variable_max_count = 0;
bool already_has_entry_point = false;
@@ -296,7 +296,7 @@ gb_internal bool cg_global_variables_create(cgModule *m) {
}
}
}
auto global_variables = array_make<cgGlobalVariable>(permanent_allocator(), 0, global_variable_max_count);
*global_variables = array_make<cgGlobalVariable>(permanent_allocator(), 0, global_variable_max_count);
auto *min_dep_set = &m->info->minimum_dependency_set;
@@ -358,7 +358,7 @@ gb_internal bool cg_global_variables_create(cgModule *m) {
isize max_regions = cg_global_const_calculate_region_count(tav.value, e->type);
tb_global_set_storage(m->mod, section, global, type_size_of(e->type), type_align_of(e->type), max_regions);
if (tav.mode != Addressing_Invalid &&
if (tav.mode == Addressing_Constant &&
tav.value.kind != ExactValue_Invalid) {
cg_global_const_add_region(m, tav.value, e->type, global, 0);
var.is_initialized = true;
@@ -367,24 +367,36 @@ gb_internal bool cg_global_variables_create(cgModule *m) {
var.is_initialized = true;
}
} else {
var.is_initialized = true;
// TODO(bill): is this even needed;
i64 max_regions = cg_global_const_calculate_region_count_from_basic_type(e->type);
tb_global_set_storage(m->mod, section, global, type_size_of(e->type), type_align_of(e->type), max_regions);
}
array_add(&global_variables, var);
array_add(global_variables, var);
cg_add_symbol(m, e, cast(TB_Symbol *)global);
cg_add_entity(m, e, g);
cg_add_member(m, name, g);
}
cg_setup_type_info_data(m);
return already_has_entry_point;
}
gb_internal void cg_global_variables_initialize(cgProcedure *p, Array<cgGlobalVariable> *global_variables) {
for (cgGlobalVariable &var : *global_variables) {
if (var.is_initialized) {
continue;
}
cgValue src = cg_build_expr(p, var.decl->init_expr);
cgValue dst = cg_flatten_value(p, var.var);
cg_emit_store(p, dst, src);
}
}
gb_internal cgModule *cg_module_create(Checker *c) {
cgModule *m = gb_alloc_item(permanent_allocator(), cgModule);
@@ -674,7 +686,8 @@ gb_internal bool cg_generate_code(Checker *c, LinkerData *linker_data) {
TIME_SECTION("Tilde Global Variables");
bool already_has_entry_point = cg_global_variables_create(m);
Array<cgGlobalVariable> global_variables = {};
bool already_has_entry_point = cg_global_variables_create(m, &global_variables);
gb_unused(already_has_entry_point);
if (true) {
@@ -683,6 +696,8 @@ gb_internal bool cg_generate_code(Checker *c, LinkerData *linker_data) {
p->is_startup = true;
cg_procedure_begin(p);
cg_global_variables_initialize(p, &global_variables);
tb_inst_ret(p->func, 0, nullptr);
cg_procedure_end(p);
}