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Support non-constant global slices

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This commit is contained in:
gingerBill
2023-07-25 14:37:19 +01:00
parent e914d551e7
commit c4033c215e
5 changed files with 77 additions and 21 deletions
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src/tilde_expr.cpp
+47 -8
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@@ -86,6 +86,39 @@ gb_internal cgValue cg_find_value_from_entity(cgModule *m, Entity *e) {
return {};
}
gb_internal cgValue cg_get_using_variable(cgProcedure *p, Entity *e) {
GB_ASSERT(e->kind == Entity_Variable && e->flags & EntityFlag_Using);
String name = e->token.string;
Entity *parent = e->using_parent;
Selection sel = lookup_field(parent->type, name, false);
GB_ASSERT(sel.entity != nullptr);
cgValue *pv = map_get(&p->module->values, parent);
cgValue v = {};
if (pv == nullptr && parent->flags & EntityFlag_SoaPtrField) {
// NOTE(bill): using SOA value (probably from for-in statement)
GB_PANIC("TODO(bill): cg_get_soa_variable_addr");
// cgAddr parent_addr = cg_get_soa_variable_addr(p, parent);
// v = cg_addr_get_ptr(p, parent_addr);
} else if (pv != nullptr) {
v = *pv;
} else {
GB_ASSERT_MSG(e->using_expr != nullptr, "%.*s %.*s", LIT(e->token.string), LIT(name));
v = cg_build_addr_ptr(p, e->using_expr);
}
GB_ASSERT(v.node != nullptr);
GB_ASSERT_MSG(parent->type == type_deref(v.type), "%s %s", type_to_string(parent->type), type_to_string(v.type));
cgValue ptr = cg_emit_deep_field_gep(p, v, sel);
// if (parent->scope) {
// if ((parent->scope->flags & (ScopeFlag_File|ScopeFlag_Pkg)) == 0) {
// cg_add_debug_local_variable(p, ptr.value, e->type, e->token);
// }
// } else {
// cg_add_debug_local_variable(p, ptr.value, e->type, e->token);
// }
return ptr;
}
gb_internal cgAddr cg_build_addr_from_entity(cgProcedure *p, Entity *e, Ast *expr) {
GB_ASSERT(e != nullptr);
if (e->kind == Entity_Constant) {
@@ -111,9 +144,8 @@ gb_internal cgAddr cg_build_addr_from_entity(cgProcedure *p, Entity *e, Ast *exp
if (found) {
v = *found;
} else if (e->kind == Entity_Variable && e->flags & EntityFlag_Using) {
GB_PANIC("TODO(bill): cg_get_using_variable");
// NOTE(bill): Calculate the using variable every time
// v = cg_get_using_variable(p, e);
v = cg_get_using_variable(p, e);
} else if (e->flags & EntityFlag_SoaPtrField) {
GB_PANIC("TODO(bill): cg_get_soa_variable_addr");
// return cg_get_soa_variable_addr(p, e);
@@ -434,11 +466,10 @@ gb_internal cgValue cg_emit_comp(cgProcedure *p, TokenKind op_kind, cgValue left
}
GB_ASSERT(runtime_procedure != nullptr);
GB_PANIC("TODO(bill): cg_emit_runtime_call");
// auto args = array_make<lbValue>(permanent_allocator(), 2);
// args[0] = left;
// args[1] = right;
// return cg_emit_runtime_call(p, runtime_procedure, args);
auto args = slice_make<cgValue>(permanent_allocator(), 2);
args[0] = left;
args[1] = right;
return cg_emit_runtime_call(p, runtime_procedure, args);
}
if (is_type_complex(a)) {
@@ -2514,7 +2545,15 @@ cgAddr cg_build_addr_compound_lit(cgProcedure *p, Ast *expr) {
TB_CharUnits backing_size = cast(TB_CharUnits)(type_size_of(bt->Slice.elem) * count);
TB_CharUnits align = cast(TB_CharUnits)type_align_of(bt->Slice.elem);
TB_Node *backing = tb_inst_local(p->func, backing_size, align);
TB_Node *backing = nullptr;
if (p->is_startup) {
TB_Global *global = tb_global_create(p->module->mod, 0, "", nullptr, TB_LINKAGE_PRIVATE);
tb_global_set_storage(p->module->mod, tb_module_get_data(p->module->mod), global, backing_size, align, 0);
backing = tb_inst_get_symbol_address(p->func, cast(TB_Symbol *)global);
} else {
backing = tb_inst_local(p->func, backing_size, align);
}
cgValue data = cg_value(backing, alloc_type_multi_pointer(bt->Slice.elem));