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Add intrinsics.type_struct_has_implicit_padding #3844

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gingerBill
2024-07-01 12:13:35 +01:00
parent 942f3f5220
commit 544959326b
4 changed files with 31 additions and 2 deletions
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src/check_builtin.cpp
+25
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@@ -5839,6 +5839,31 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As
operand->mode = Addressing_Constant;
operand->type = t_untyped_integer;
break;
case BuiltinProc_type_struct_has_implicit_padding:
operand->value = exact_value_bool(false);
if (operand->mode != Addressing_Type) {
error(operand->expr, "Expected a struct type for '%.*s'", LIT(builtin_name));
} else if (!is_type_struct(operand->type) && !is_type_soa_struct(operand->type)) {
error(operand->expr, "Expected a struct type for '%.*s'", LIT(builtin_name));
} else {
Type *bt = base_type(operand->type);
if (bt->Struct.is_packed) {
operand->value = exact_value_bool(false);
} else if (bt->Struct.fields.count != 0) {
i64 size = type_size_of(bt);
Type *field_type = nullptr;
i64 last_offset = type_offset_of(bt, bt->Struct.fields.count-1, &field_type);
if (last_offset+type_size_of(field_type) < size) {
operand->value = exact_value_bool(true);
} else {
i64 packed_size = type_size_of_struct_pretend_is_packed(bt);
operand->value = exact_value_bool(packed_size < size);
}
}
}
operand->mode = Addressing_Constant;
operand->type = t_untyped_bool;
break;
case BuiltinProc_type_proc_parameter_count:
operand->value = exact_value_i64(0);