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Folkert 2023-06-18 14:21:48 +02:00
parent 4a9514d2c4
commit 0247237fe8
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16 changed files with 625 additions and 163 deletions
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24
crates/compiler/mono/src/drop_specialization.rs
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@ -211,7 +211,20 @@ fn specialize_drops_stmt<'a, 'i>(
// TODO perhaps we need the union_layout later as well? if so, create a new function/map to store it.
environment.add_union_child(*structure, *binding, *tag_id, *index);
// Generated code might know the tag of the union without switching on it.
// So if we unionAtIndex, we must know the tag and we can use it to specialize the drop.
// So if we UnionAtIndex, we must know the tag and we can use it to specialize the drop.
environment.symbol_tag.insert(*structure, *tag_id);
alloc_let_with_continuation!(environment)
}
Expr::UnionFieldPtrAtIndex {
structure,
tag_id,
union_layout: _,
index,
} => {
// TODO perhaps we need the union_layout later as well? if so, create a new function/map to store it.
environment.add_union_child(*structure, *binding, *tag_id, *index);
// Generated code might know the tag of the union without switching on it.
// So if we UnionFieldPtrAtIndex, we must know the tag and we can use it to specialize the drop.
environment.symbol_tag.insert(*structure, *tag_id);
alloc_let_with_continuation!(environment)
}
@ -1666,8 +1679,13 @@ fn low_level_no_rc(lowlevel: &LowLevel) -> RC {
unreachable!("These lowlevel operations are turned into mono Expr's")
}
PtrCast | PtrWrite | RefCountIncRcPtr | RefCountDecRcPtr | RefCountIncDataPtr
| RefCountDecDataPtr | RefCountIsUnique => {
// only inserted for internal purposes. RC should not touch it
PtrStore => RC::NoRc,
PtrLoad => RC::NoRc,
PtrToZeroed => RC::NoRc,
PtrCast | RefCountIncRcPtr | RefCountDecRcPtr | RefCountIncDataPtr | RefCountDecDataPtr
| RefCountIsUnique => {
unreachable!("Only inserted *after* borrow checking: {:?}", lowlevel);
}
}