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Allow comparisons between empty struct{} and union{}

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This commit is contained in:
gingerBill
2023-02-17 17:02:37 +00:00
parent 7d4e9497eb
commit 66f2881a78
2 changed files with 9 additions and 6 deletions
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9
src/llvm_backend_expr.cpp
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@@ -2210,6 +2210,15 @@ gb_internal lbValue lb_compare_records(lbProcedure *p, TokenKind op_kind, lbValu
lbValue left_ptr = lb_address_from_load_or_generate_local(p, left);
lbValue right_ptr = lb_address_from_load_or_generate_local(p, right);
lbValue res = {};
if (type_size_of(type) == 0) {
switch (op_kind) {
case Token_CmpEq:
return lb_const_bool(p->module, t_bool, true);
case Token_NotEq:
return lb_const_bool(p->module, t_bool, false);
}
GB_PANIC("invalid operator");
}
if (is_type_simple_compare(type)) {
// TODO(bill): Test to see if this is actually faster!!!!
auto args = array_make<lbValue>(permanent_allocator(), 3);

6
src/types.cpp
View File

@@ -2313,9 +2313,6 @@ gb_internal bool is_type_comparable(Type *t) {
return true;
case Type_Struct:
if (type_size_of(t) == 0) {
return false;
}
if (t->Struct.soa_kind != StructSoa_None) {
return false;
}
@@ -2331,9 +2328,6 @@ gb_internal bool is_type_comparable(Type *t) {
return true;
case Type_Union:
if (type_size_of(t) == 0) {
return false;
}
for_array(i, t->Union.variants) {
Type *v = t->Union.variants[i];
if (!is_type_comparable(v)) {