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cleanup

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This commit is contained in:
nora 2022-04-16 23:56:29 +02:00
parent 9db60ac38d
commit bd2bde58b8
4 changed files with 64 additions and 57 deletions
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27
rust2/src/mir/opts.rs
View file

@ -27,14 +27,25 @@ fn pass_get_state_info_inner<'mir>(
) {
for stmt in &mut mir.stmts {
let state = match &mut stmt.kind {
StmtKind::AddSub(offset, _, store) => MemoryState::single(
alloc,
outer,
MemoryStateChange::Change {
offset: *offset,
new_state: CellState::WrittenToUnknown(store.clone()),
},
),
StmtKind::AddSub(offset, n, store) => {
let prev_state = outer.state_for_offset(*offset);
let new_state = match prev_state {
CellState::WrittenToKnown(_, prev_n) => {
let n = i16::from(prev_n).wrapping_add(*n);
let n = u8::try_from(n).unwrap();
CellState::WrittenToKnown(store.clone(), n)
}
_ => CellState::WrittenToUnknown(store.clone()),
};
MemoryState::single(
alloc,
outer,
MemoryStateChange::Change {
offset: *offset,
new_state,
},
)
}
StmtKind::MoveAddTo {
offset,
store_set_null,