bjoernager/rust
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Add new Deinit statement kind

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This commit is contained in:
Jakob Degen 2022-04-05 17:14:59 -04:00
parent d00e77078c
commit 9b6b1a625b
27 changed files with 141 additions and 66 deletions
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3
compiler/rustc_middle/src/mir/mod.rs
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@ -1590,6 +1590,8 @@ pub enum StatementKind<'tcx> {
/// Write the discriminant for a variant to the enum Place.
SetDiscriminant { place: Box<Place<'tcx>>, variant_index: VariantIdx },
Deinit(Box<Place<'tcx>>),
/// Start a live range for the storage of the local.
StorageLive(Local),
@ -1739,6 +1741,7 @@ impl Debug for Statement<'_> {
SetDiscriminant { ref place, variant_index } => {
write!(fmt, "discriminant({:?}) = {:?}", place, variant_index)
}
Deinit(ref place) => write!(fmt, "Deinit({:?})", place),
AscribeUserType(box (ref place, ref c_ty), ref variance) => {
write!(fmt, "AscribeUserType({:?}, {:?}, {:?})", place, variance, c_ty)
}

1
compiler/rustc_middle/src/mir/spanview.rs
View file

@ -243,6 +243,7 @@ pub fn statement_kind_name(statement: &Statement<'_>) -> &'static str {
Assign(..) => "Assign",
FakeRead(..) => "FakeRead",
SetDiscriminant { .. } => "SetDiscriminant",
Deinit(..) => "Deinit",
StorageLive(..) => "StorageLive",
StorageDead(..) => "StorageDead",
Retag(..) => "Retag",

7
compiler/rustc_middle/src/mir/visit.rs
View file

@ -399,6 +399,13 @@ macro_rules! make_mir_visitor {
location
);
}
StatementKind::Deinit(place) => {
self.visit_place(
place,
PlaceContext::MutatingUse(MutatingUseContext::Store),
location
)
}
StatementKind::StorageLive(local) => {
self.visit_local(
local,