calyx_opt/analysis/control_id.rs
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use calyx_ir as ir;
const NODE_ID: ir::Attribute =
ir::Attribute::Internal(ir::InternalAttr::NODE_ID);
const BEGIN_ID: ir::Attribute =
ir::Attribute::Internal(ir::InternalAttr::BEGIN_ID);
const END_ID: ir::Attribute = ir::Attribute::Internal(ir::InternalAttr::END_ID);
/// Adding "NODE_ID", "BEGIN_ID", and "END_ID" attribute to control statement
pub struct ControlId;
impl ControlId {
fn compute_unique_ids_static(
scon: &mut ir::StaticControl,
mut cur_state: u64,
two_if_ids: bool,
) -> u64 {
match scon {
ir::StaticControl::Empty(_) => cur_state,
ir::StaticControl::Enable(ir::StaticEnable {
attributes, ..
})
| ir::StaticControl::Invoke(ir::StaticInvoke {
attributes, ..
}) => {
attributes.insert(NODE_ID, cur_state);
cur_state + 1
}
ir::StaticControl::Repeat(ir::StaticRepeat {
attributes,
body,
..
}) => {
attributes.insert(NODE_ID, cur_state);
cur_state += 1;
Self::compute_unique_ids_static(body, cur_state, two_if_ids)
}
ir::StaticControl::Par(ir::StaticPar {
stmts, attributes, ..
})
| ir::StaticControl::Seq(ir::StaticSeq {
stmts, attributes, ..
}) => {
attributes.insert(NODE_ID, cur_state);
cur_state += 1;
stmts.iter_mut().for_each(|stmt| {
let new_state = Self::compute_unique_ids_static(
stmt, cur_state, two_if_ids,
);
cur_state = new_state;
});
cur_state
}
ir::StaticControl::If(ir::StaticIf {
tbranch,
fbranch,
attributes,
..
}) => {
if two_if_ids {
attributes.insert(BEGIN_ID, cur_state);
cur_state += 1;
cur_state = Self::compute_unique_ids_static(
tbranch, cur_state, two_if_ids,
);
cur_state = Self::compute_unique_ids_static(
fbranch, cur_state, two_if_ids,
);
attributes.insert(END_ID, cur_state);
cur_state + 1
} else {
attributes.insert(NODE_ID, cur_state);
cur_state += 1;
cur_state = Self::compute_unique_ids_static(
tbranch, cur_state, two_if_ids,
);
cur_state = Self::compute_unique_ids_static(
fbranch, cur_state, two_if_ids,
);
cur_state + 1
}
}
}
}
/// Adds the @NODE_ID attribute to all control stmts except emtpy ones.
/// If two_if_ids is true, then if statements get a BEGIN_ID and END_ID instead
/// of a NODE_ID
///
/// ## Example:
/// ```
/// seq { A; if cond {X} else{Y}; par { C; D; }; E }
/// ```
///
/// gets the labels (if two_if_ids is):
///
/// ```
/// @NODE_ID(0)seq {
/// @NODE_ID(1) A;
/// @BEGIN_ID(2) @END_ID(5) if cond {
/// @NODE_ID(3) X
/// }
/// else{
/// @NODE_ID(4) Y
/// }
/// @NODE_ID(6) par {
/// @NODE_ID(7) C;
/// @NODE_ID(8) D;
/// }
/// @NODE_ID(9) E;
/// }
/// ```
/// if two_if_ids were false, the if statement would just get a single NODE_ID
pub fn compute_unique_ids(
con: &mut ir::Control,
mut cur_state: u64,
two_if_ids: bool,
) -> u64 {
match con {
ir::Control::Enable(ir::Enable { attributes, .. })
| ir::Control::Invoke(ir::Invoke { attributes, .. }) => {
attributes.insert(NODE_ID, cur_state);
cur_state + 1
}
ir::Control::Par(ir::Par {
stmts, attributes, ..
})
| ir::Control::Seq(ir::Seq {
stmts, attributes, ..
}) => {
attributes.insert(NODE_ID, cur_state);
cur_state += 1;
stmts.iter_mut().for_each(|stmt| {
let new_state =
Self::compute_unique_ids(stmt, cur_state, two_if_ids);
cur_state = new_state;
});
cur_state
}
ir::Control::If(ir::If {
tbranch,
fbranch,
attributes,
..
}) => {
if two_if_ids {
attributes.insert(BEGIN_ID, cur_state);
cur_state += 1;
cur_state = Self::compute_unique_ids(
tbranch, cur_state, two_if_ids,
);
cur_state = Self::compute_unique_ids(
fbranch, cur_state, two_if_ids,
);
attributes.insert(END_ID, cur_state);
cur_state + 1
} else {
attributes.insert(NODE_ID, cur_state);
cur_state += 1;
cur_state = Self::compute_unique_ids(
tbranch, cur_state, two_if_ids,
);
cur_state = Self::compute_unique_ids(
fbranch, cur_state, two_if_ids,
);
cur_state + 1
}
}
ir::Control::While(ir::While {
body, attributes, ..
})
| ir::Control::Repeat(ir::Repeat {
body, attributes, ..
}) => {
attributes.insert(NODE_ID, cur_state);
cur_state += 1;
Self::compute_unique_ids(body, cur_state, two_if_ids)
}
ir::Control::Static(s) => {
Self::compute_unique_ids_static(s, cur_state, two_if_ids)
}
ir::Control::Empty(_) => cur_state,
}
}
// Gets attribute s from c, panics otherwise. Should be used when you know
// that c has attribute s.
pub fn get_guaranteed_attribute<A>(c: &ir::Control, attr: A) -> u64
where
A: Into<ir::Attribute>,
{
c.get_attribute(attr.into()).unwrap_or_else(||unreachable!(
"called get_guaranteed_attribute, meaning we had to be sure it had the attribute"
))
}
// Gets attribute s from c, panics otherwise. Should be used when you know
// that c has attribute s.
pub fn get_guaranteed_attribute_static<A>(
sc: &ir::StaticControl,
attr: A,
) -> u64
where
A: Into<ir::Attribute>,
{
sc.get_attribute(attr.into()).unwrap_or_else(||unreachable!(
"called get_guaranteed_attribute_static, meaning we had to be sure it had the attribute"
))
}
// Gets attribute NODE_ID from c
pub fn get_guaranteed_id(c: &ir::Control) -> u64 {
Self::get_guaranteed_attribute(c, NODE_ID)
}
// Gets attribute NODE_ID from c
pub fn get_guaranteed_id_static(sc: &ir::StaticControl) -> u64 {
Self::get_guaranteed_attribute_static(sc, NODE_ID)
}
// takes in a static control scon, and adds unique id to each static enable.
// Returns cur_state, i.e., what the next enable should be labeled as
pub fn add_static_enable_ids_static(
scon: &mut ir::StaticControl,
mut cur_state: u64,
) -> u64 {
match scon {
ir::StaticControl::Enable(se) => {
se.attributes.insert(NODE_ID, cur_state);
cur_state + 1
}
ir::StaticControl::Invoke(_) | ir::StaticControl::Empty(_) => {
cur_state
}
ir::StaticControl::Par(ir::StaticPar { stmts, .. })
| ir::StaticControl::Seq(ir::StaticSeq { stmts, .. }) => {
for stmt in stmts {
let new_state =
Self::add_static_enable_ids_static(stmt, cur_state);
cur_state = new_state
}
cur_state
}
ir::StaticControl::If(ir::StaticIf {
tbranch, fbranch, ..
}) => {
let mut new_state =
Self::add_static_enable_ids_static(tbranch, cur_state);
cur_state = new_state;
new_state =
Self::add_static_enable_ids_static(fbranch, cur_state);
new_state
}
ir::StaticControl::Repeat(ir::StaticRepeat { body, .. }) => {
Self::add_static_enable_ids_static(body, cur_state)
}
}
}
// takes in ir::Control `con`, and adds unique id to every static enable within it.
// returns u64 `cur_state` that says what the next staticenable should be labeled as.
pub fn add_static_enable_ids(
con: &mut ir::Control,
mut cur_state: u64,
) -> u64 {
match con {
ir::Control::Enable(_)
| ir::Control::Invoke(_)
| ir::Control::Empty(_) => cur_state,
ir::Control::Par(ir::Par { stmts, .. })
| ir::Control::Seq(ir::Seq { stmts, .. }) => {
for stmt in stmts {
let new_state =
Self::add_static_enable_ids(stmt, cur_state);
cur_state = new_state
}
cur_state
}
ir::Control::If(ir::If {
tbranch, fbranch, ..
}) => {
let mut new_state =
Self::add_static_enable_ids(tbranch, cur_state);
cur_state = new_state;
new_state = Self::add_static_enable_ids(fbranch, cur_state);
new_state
}
ir::Control::While(ir::While { body, .. })
| ir::Control::Repeat(ir::Repeat { body, .. }) => {
Self::add_static_enable_ids(body, cur_state)
}
ir::Control::Static(s) => {
Self::add_static_enable_ids_static(s, cur_state)
}
}
}
// Gets NODE_ID from StaticEnable se, panics otherwise. Should be used when you know
// that se has attributes NODE_ID.
pub fn get_guaranteed_enable_id(se: &ir::StaticEnable) -> u64 {
se.get_attribute(NODE_ID).unwrap_or_else(||unreachable!(
"called get_guaranteed_enable_id, meaning we had to be sure it had a NODE_ID attribute"
))
}
}