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reset reuse stuff

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This commit is contained in:
Folkert 2020-09-04 23:07:45 +02:00
parent f02d907f17
commit b849a3019f
5 changed files with 265 additions and 599 deletions
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32
compiler/mono/src/inc_dec.rs
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@ -113,7 +113,15 @@ pub fn occuring_variables_expr(expr: &Expr<'_>, result: &mut MutSet<Symbol>) {
} => {
result.extend(arguments.iter().copied());
}
Reuse {
symbol, arguments, ..
} => {
result.extend(arguments.iter().copied());
result.insert(*symbol);
}
Reset(x) => {
result.insert(*x);
}
RunLowLevel(_, args) => {
result.extend(args.iter());
}
@ -413,12 +421,14 @@ impl<'a> Context<'a> {
live_vars.remove(&z);
let new_b = match v {
Tag { arguments: ys, .. } | Struct(ys) | Array { elems: ys, .. } => self
.add_inc_before_consume_all(
ys,
self.arena.alloc(Stmt::Let(z, v, l, b)),
&b_live_vars,
),
Reuse { arguments: ys, .. }
| Tag { arguments: ys, .. }
| Struct(ys)
| Array { elems: ys, .. } => self.add_inc_before_consume_all(
ys,
self.arena.alloc(Stmt::Let(z, v, l, b)),
&b_live_vars,
),
AccessAtIndex { structure: x, .. } => {
let b = self.add_dec_if_needed(x, b, b_live_vars);
let info_x = self.get_var_info(x);
@ -464,7 +474,11 @@ impl<'a> Context<'a> {
self.add_inc_before(ys, ps, b, b_live_vars)
}
EmptyArray | FunctionPointer(_, _) | Literal(_) | RuntimeErrorFunction(_) => {
EmptyArray
| FunctionPointer(_, _)
| Literal(_)
| Reset(_)
| RuntimeErrorFunction(_) => {
// EmptyArray is always stack-allocated
// function pointers are persistent
self.arena.alloc(Stmt::Let(z, v, l, b))
@ -749,7 +763,7 @@ impl<'a> Context<'a> {
}
#[derive(Clone, Debug, Default)]
struct LocalContext<'a> {
pub struct LocalContext<'a> {
join_points: MutMap<JoinPointId, (&'a [Param<'a>], &'a Stmt<'a>)>,
}