Simplify construction of replacement map.
This commit is contained in:
Camille GILLOT
parent
e465d647b1
commit
42c9514629
@ -790,7 +790,7 @@ impl<V, T> TryFrom<ProjectionElem<V, T>> for TrackElem {
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}
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/// Invokes `f` on all direct fields of `ty`.
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fn iter_fields<'tcx>(
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pub fn iter_fields<'tcx>(
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ty: Ty<'tcx>,
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tcx: TyCtxt<'tcx>,
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mut f: impl FnMut(Option<VariantIdx>, Field, Ty<'tcx>),
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@ -1,11 +1,12 @@
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use crate::MirPass;
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use rustc_data_structures::fx::{FxIndexMap, IndexEntry};
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use rustc_data_structures::fx::FxIndexMap;
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use rustc_index::bit_set::BitSet;
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use rustc_index::vec::IndexVec;
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use rustc_middle::mir::patch::MirPatch;
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use rustc_middle::mir::visit::*;
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use rustc_middle::mir::*;
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use rustc_middle::ty::TyCtxt;
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use rustc_mir_dataflow::value_analysis::iter_fields;
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pub struct ScalarReplacementOfAggregates;
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@ -125,6 +126,36 @@ fn escaping_locals(body: &Body<'_>) -> BitSet<Local> {
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#[derive(Default, Debug)]
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struct ReplacementMap<'tcx> {
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fields: FxIndexMap<PlaceRef<'tcx>, Local>,
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/// Pre-computed list of all "new" locals for each "old" local. This is used to expand storage
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/// and deinit statement and debuginfo.
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fragments: IndexVec<Local, Option<Vec<(&'tcx [PlaceElem<'tcx>], Local)>>>,
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}
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impl<'tcx> ReplacementMap<'tcx> {
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fn gather_debug_info_fragments(
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&self,
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place: PlaceRef<'tcx>,
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) -> Option<Vec<VarDebugInfoFragment<'tcx>>> {
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let mut fragments = Vec::new();
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let Some(parts) = &self.fragments[place.local] else { return None };
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for (proj, replacement_local) in parts {
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if proj.starts_with(place.projection) {
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fragments.push(VarDebugInfoFragment {
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projection: proj[place.projection.len()..].to_vec(),
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contents: Place::from(*replacement_local),
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});
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}
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}
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Some(fragments)
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}
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fn place_fragments(
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&self,
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place: Place<'tcx>,
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) -> Option<&Vec<(&'tcx [PlaceElem<'tcx>], Local)>> {
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let local = place.as_local()?;
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self.fragments[local].as_ref()
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}
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}
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/// Compute the replacement of flattened places into locals.
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@ -136,53 +167,30 @@ fn compute_flattening<'tcx>(
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body: &mut Body<'tcx>,
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escaping: BitSet<Local>,
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) -> ReplacementMap<'tcx> {
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let mut visitor = PreFlattenVisitor {
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tcx,
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escaping,
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local_decls: &mut body.local_decls,
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map: Default::default(),
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};
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for (block, bbdata) in body.basic_blocks.iter_enumerated() {
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visitor.visit_basic_block_data(block, bbdata);
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}
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return visitor.map;
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let mut fields = FxIndexMap::default();
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let mut fragments = IndexVec::from_elem(None::<Vec<_>>, &body.local_decls);
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struct PreFlattenVisitor<'tcx, 'll> {
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tcx: TyCtxt<'tcx>,
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local_decls: &'ll mut LocalDecls<'tcx>,
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escaping: BitSet<Local>,
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map: ReplacementMap<'tcx>,
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}
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impl<'tcx, 'll> PreFlattenVisitor<'tcx, 'll> {
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fn create_place(&mut self, place: PlaceRef<'tcx>) {
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if self.escaping.contains(place.local) {
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for local in body.local_decls.indices() {
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if escaping.contains(local) {
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continue;
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}
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let decl = body.local_decls[local].clone();
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let ty = decl.ty;
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iter_fields(ty, tcx, |variant, field, field_ty| {
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if variant.is_some() {
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// Downcasts are currently not supported.
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return;
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}
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match self.map.fields.entry(place) {
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IndexEntry::Occupied(_) => {}
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IndexEntry::Vacant(v) => {
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let ty = place.ty(&*self.local_decls, self.tcx).ty;
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let local = self.local_decls.push(LocalDecl {
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ty,
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user_ty: None,
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..self.local_decls[place.local].clone()
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});
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v.insert(local);
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}
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}
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}
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}
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impl<'tcx, 'll> Visitor<'tcx> for PreFlattenVisitor<'tcx, 'll> {
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fn visit_place(&mut self, place: &Place<'tcx>, _: PlaceContext, _: Location) {
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if let &[PlaceElem::Field(..), ..] = &place.projection[..] {
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let pr = PlaceRef { local: place.local, projection: &place.projection[..1] };
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self.create_place(pr)
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}
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}
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};
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let new_local =
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body.local_decls.push(LocalDecl { ty: field_ty, user_ty: None, ..decl.clone() });
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let place = Place::from(local)
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.project_deeper(&[PlaceElem::Field(field, field_ty)], tcx)
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.as_ref();
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fields.insert(place, new_local);
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fragments[local].get_or_insert_default().push((place.projection, new_local));
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});
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}
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ReplacementMap { fields, fragments }
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}
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/// Perform the replacement computed by `compute_flattening`.
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@ -200,18 +208,11 @@ fn replace_flattened_locals<'tcx>(
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return;
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}
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let mut fragments = IndexVec::<_, Option<Vec<_>>>::from_elem(None, &body.local_decls);
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for (k, v) in &replacements.fields {
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fragments[k.local].get_or_insert_default().push((k.projection, *v));
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}
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debug!(?fragments);
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let mut visitor = ReplacementVisitor {
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tcx,
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local_decls: &body.local_decls,
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replacements,
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all_dead_locals,
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fragments: &fragments,
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patch: MirPatch::new(body),
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};
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for (bb, data) in body.basic_blocks.as_mut_preserves_cfg().iter_enumerated_mut() {
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@ -237,30 +238,10 @@ struct ReplacementVisitor<'tcx, 'll> {
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replacements: ReplacementMap<'tcx>,
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/// This is used to check that we are not leaving references to replaced locals behind.
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all_dead_locals: BitSet<Local>,
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/// Pre-computed list of all "new" locals for each "old" local. This is used to expand storage
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/// and deinit statement and debuginfo.
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fragments: &'ll IndexVec<Local, Option<Vec<(&'tcx [PlaceElem<'tcx>], Local)>>>,
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patch: MirPatch<'tcx>,
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}
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impl<'tcx, 'll> ReplacementVisitor<'tcx, 'll> {
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fn gather_debug_info_fragments(
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&self,
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place: PlaceRef<'tcx>,
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) -> Option<Vec<VarDebugInfoFragment<'tcx>>> {
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let mut fragments = Vec::new();
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let Some(parts) = &self.fragments[place.local] else { return None };
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for (proj, replacement_local) in parts {
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if proj.starts_with(place.projection) {
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fragments.push(VarDebugInfoFragment {
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projection: proj[place.projection.len()..].to_vec(),
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contents: Place::from(*replacement_local),
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});
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}
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}
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Some(fragments)
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}
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fn replace_place(&self, place: PlaceRef<'tcx>) -> Option<Place<'tcx>> {
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if let &[PlaceElem::Field(..), ref rest @ ..] = place.projection {
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let pr = PlaceRef { local: place.local, projection: &place.projection[..1] };
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@ -270,14 +251,6 @@ impl<'tcx, 'll> ReplacementVisitor<'tcx, 'll> {
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None
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}
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}
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fn place_fragments(
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&self,
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place: Place<'tcx>,
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) -> Option<&'ll Vec<(&'tcx [PlaceElem<'tcx>], Local)>> {
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let local = place.as_local()?;
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self.fragments[local].as_ref()
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}
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}
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impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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@ -285,10 +258,11 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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self.tcx
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}
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#[instrument(level = "trace", skip(self))]
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fn visit_statement(&mut self, statement: &mut Statement<'tcx>, location: Location) {
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match statement.kind {
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StatementKind::StorageLive(l) => {
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if let Some(final_locals) = &self.fragments[l] {
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if let Some(final_locals) = &self.replacements.fragments[l] {
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for &(_, fl) in final_locals {
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self.patch.add_statement(location, StatementKind::StorageLive(fl));
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}
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@ -297,7 +271,7 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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return;
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}
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StatementKind::StorageDead(l) => {
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if let Some(final_locals) = &self.fragments[l] {
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if let Some(final_locals) = &self.replacements.fragments[l] {
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for &(_, fl) in final_locals {
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self.patch.add_statement(location, StatementKind::StorageDead(fl));
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}
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@ -306,7 +280,7 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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return;
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}
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StatementKind::Deinit(box place) => {
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if let Some(final_locals) = self.place_fragments(place) {
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if let Some(final_locals) = self.replacements.place_fragments(place) {
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for &(_, fl) in final_locals {
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self.patch
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.add_statement(location, StatementKind::Deinit(Box::new(fl.into())));
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@ -317,7 +291,7 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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}
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StatementKind::Assign(box (place, Rvalue::Aggregate(_, ref operands))) => {
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if let Some(final_locals) = self.place_fragments(place) {
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if let Some(final_locals) = self.replacements.place_fragments(place) {
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for &(projection, fl) in final_locals {
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let &[PlaceElem::Field(index, _)] = projection else { bug!() };
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let index = index.as_usize();
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@ -333,7 +307,7 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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}
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StatementKind::Assign(box (place, Rvalue::Use(Operand::Constant(_)))) => {
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if let Some(final_locals) = self.place_fragments(place) {
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if let Some(final_locals) = self.replacements.place_fragments(place) {
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for &(projection, fl) in final_locals {
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let rvalue =
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Rvalue::Use(Operand::Move(place.project_deeper(projection, self.tcx)));
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@ -353,9 +327,12 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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Operand::Move(rplace) => (rplace, false),
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Operand::Constant(_) => bug!(),
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};
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if let Some(final_locals) = self.place_fragments(lhs) {
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if let Some(final_locals) = self.replacements.place_fragments(lhs) {
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for &(projection, fl) in final_locals {
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let rplace = rplace.project_deeper(projection, self.tcx);
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debug!(?rplace);
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let rplace = self.replace_place(rplace.as_ref()).unwrap_or(rplace);
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debug!(?rplace);
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let rvalue = if copy {
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Rvalue::Use(Operand::Copy(rplace))
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} else {
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@ -389,7 +366,9 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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VarDebugInfoContents::Place(ref mut place) => {
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if let Some(repl) = self.replace_place(place.as_ref()) {
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*place = repl;
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} else if let Some(fragments) = self.gather_debug_info_fragments(place.as_ref()) {
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} else if let Some(fragments) =
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self.replacements.gather_debug_info_fragments(place.as_ref())
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{
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let ty = place.ty(self.local_decls, self.tcx).ty;
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var_debug_info.value = VarDebugInfoContents::Composite { ty, fragments };
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}
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@ -401,8 +380,9 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> {
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if let Some(repl) = self.replace_place(fragment.contents.as_ref()) {
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fragment.contents = repl;
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true
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} else if let Some(frg) =
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self.gather_debug_info_fragments(fragment.contents.as_ref())
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} else if let Some(frg) = self
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.replacements
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.gather_debug_info_fragments(fragment.contents.as_ref())
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{
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new_fragments.extend(frg.into_iter().map(|mut f| {
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f.projection.splice(0..0, fragment.projection.iter().copied());
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@ -8,8 +8,8 @@
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let mut _6: u8; // in scope 0 at $DIR/const_debuginfo.rs:+4:15: +4:16
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let mut _7: u8; // in scope 0 at $DIR/const_debuginfo.rs:+4:19: +4:20
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let mut _8: u8; // in scope 0 at $DIR/const_debuginfo.rs:+4:23: +4:24
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let mut _13: u32; // in scope 0 at $DIR/const_debuginfo.rs:+13:13: +13:16
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let mut _14: u32; // in scope 0 at $DIR/const_debuginfo.rs:+13:19: +13:22
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let mut _12: u32; // in scope 0 at $DIR/const_debuginfo.rs:+13:13: +13:16
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let mut _13: u32; // in scope 0 at $DIR/const_debuginfo.rs:+13:19: +13:22
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scope 1 {
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- debug x => _1; // in scope 1 at $DIR/const_debuginfo.rs:+1:9: +1:10
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+ debug x => const 1_u8; // in scope 1 at $DIR/const_debuginfo.rs:+1:9: +1:10
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@ -29,19 +29,21 @@
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scope 5 {
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- debug s => _9; // in scope 5 at $DIR/const_debuginfo.rs:+6:9: +6:10
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+ debug s => const "hello, world!"; // in scope 5 at $DIR/const_debuginfo.rs:+6:9: +6:10
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let _10: (bool, bool, u32); // in scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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let _14: bool; // in scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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let _15: bool; // in scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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let _16: u32; // in scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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scope 6 {
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debug f => _10; // in scope 6 at $DIR/const_debuginfo.rs:+8:9: +8:10
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let _11: std::option::Option<u16>; // in scope 6 at $DIR/const_debuginfo.rs:+10:9: +10:10
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debug f => (bool, bool, u32){ .0 => _14, .1 => _15, .2 => _16, }; // in scope 6 at $DIR/const_debuginfo.rs:+8:9: +8:10
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let _10: std::option::Option<u16>; // in scope 6 at $DIR/const_debuginfo.rs:+10:9: +10:10
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scope 7 {
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debug o => _11; // in scope 7 at $DIR/const_debuginfo.rs:+10:9: +10:10
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let _15: u32; // in scope 7 at $DIR/const_debuginfo.rs:+12:9: +12:10
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let _16: u32; // in scope 7 at $DIR/const_debuginfo.rs:+12:9: +12:10
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debug o => _10; // in scope 7 at $DIR/const_debuginfo.rs:+10:9: +10:10
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let _17: u32; // in scope 7 at $DIR/const_debuginfo.rs:+12:9: +12:10
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let _18: u32; // in scope 7 at $DIR/const_debuginfo.rs:+12:9: +12:10
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scope 8 {
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debug p => Point{ .0 => _15, .1 => _16, }; // in scope 8 at $DIR/const_debuginfo.rs:+12:9: +12:10
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let _12: u32; // in scope 8 at $DIR/const_debuginfo.rs:+13:9: +13:10
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debug p => Point{ .0 => _17, .1 => _18, }; // in scope 8 at $DIR/const_debuginfo.rs:+12:9: +12:10
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let _11: u32; // in scope 8 at $DIR/const_debuginfo.rs:+13:9: +13:10
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scope 9 {
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- debug a => _12; // in scope 9 at $DIR/const_debuginfo.rs:+13:9: +13:10
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- debug a => _11; // in scope 9 at $DIR/const_debuginfo.rs:+13:9: +13:10
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+ debug a => const 64_u32; // in scope 9 at $DIR/const_debuginfo.rs:+13:9: +13:10
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}
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}
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@ -67,17 +69,23 @@
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// mir::Constant
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// + span: $DIR/const_debuginfo.rs:14:13: 14:28
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// + literal: Const { ty: &str, val: Value(Slice(..)) }
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StorageLive(_10); // scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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_10 = (const true, const false, const 123_u32); // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34
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StorageLive(_11); // scope 6 at $DIR/const_debuginfo.rs:+10:9: +10:10
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_11 = Option::<u16>::Some(const 99_u16); // scope 6 at $DIR/const_debuginfo.rs:+10:13: +10:24
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_15 = const 32_u32; // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35
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_16 = const 32_u32; // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35
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StorageLive(_12); // scope 8 at $DIR/const_debuginfo.rs:+13:9: +13:10
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_12 = const 64_u32; // scope 8 at $DIR/const_debuginfo.rs:+13:13: +13:22
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StorageDead(_12); // scope 8 at $DIR/const_debuginfo.rs:+14:1: +14:2
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StorageDead(_11); // scope 6 at $DIR/const_debuginfo.rs:+14:1: +14:2
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StorageDead(_10); // scope 5 at $DIR/const_debuginfo.rs:+14:1: +14:2
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StorageLive(_14); // scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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StorageLive(_15); // scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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StorageLive(_16); // scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10
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_14 = const true; // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34
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_15 = const false; // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34
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_16 = const 123_u32; // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34
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StorageLive(_10); // scope 6 at $DIR/const_debuginfo.rs:+10:9: +10:10
|
||||
_10 = Option::<u16>::Some(const 99_u16); // scope 6 at $DIR/const_debuginfo.rs:+10:13: +10:24
|
||||
_17 = const 32_u32; // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35
|
||||
_18 = const 32_u32; // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35
|
||||
StorageLive(_11); // scope 8 at $DIR/const_debuginfo.rs:+13:9: +13:10
|
||||
_11 = const 64_u32; // scope 8 at $DIR/const_debuginfo.rs:+13:13: +13:22
|
||||
StorageDead(_11); // scope 8 at $DIR/const_debuginfo.rs:+14:1: +14:2
|
||||
StorageDead(_10); // scope 6 at $DIR/const_debuginfo.rs:+14:1: +14:2
|
||||
StorageDead(_14); // scope 5 at $DIR/const_debuginfo.rs:+14:1: +14:2
|
||||
StorageDead(_15); // scope 5 at $DIR/const_debuginfo.rs:+14:1: +14:2
|
||||
StorageDead(_16); // scope 5 at $DIR/const_debuginfo.rs:+14:1: +14:2
|
||||
StorageDead(_9); // scope 4 at $DIR/const_debuginfo.rs:+14:1: +14:2
|
||||
StorageDead(_4); // scope 3 at $DIR/const_debuginfo.rs:+14:1: +14:2
|
||||
return; // scope 0 at $DIR/const_debuginfo.rs:+14:2: +14:2
|
||||
|
||||
@ -6,9 +6,10 @@
|
||||
let mut _1: (i32, i32); // in scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14
|
||||
scope 1 {
|
||||
debug x => _1; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14
|
||||
let _2: (i32, i32); // in scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10
|
||||
let _2: i32; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10
|
||||
let _3: i32; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10
|
||||
scope 2 {
|
||||
debug y => _2; // in scope 2 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10
|
||||
debug y => (i32, i32){ .0 => _2, .1 => _3, }; // in scope 2 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10
|
||||
}
|
||||
}
|
||||
|
||||
@ -18,9 +19,13 @@
|
||||
+ _1 = const (42_i32, 43_i32); // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25
|
||||
(_1.1: i32) = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate.rs:+2:5: +2:13
|
||||
StorageLive(_2); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10
|
||||
- _2 = _1; // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14
|
||||
+ _2 = const (42_i32, 99_i32); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14
|
||||
StorageLive(_3); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10
|
||||
- _2 = (_1.0: i32); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14
|
||||
- _3 = (_1.1: i32); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14
|
||||
+ _2 = const 42_i32; // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14
|
||||
+ _3 = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14
|
||||
StorageDead(_2); // scope 1 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2
|
||||
StorageDead(_3); // scope 1 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2
|
||||
StorageDead(_1); // scope 0 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2
|
||||
return; // scope 0 at $DIR/mutable_variable_aggregate.rs:+4:2: +4:2
|
||||
}
|
||||
|
||||
@ -9,9 +9,10 @@
|
||||
let _2: &mut (i32, i32); // in scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10
|
||||
scope 2 {
|
||||
debug z => _2; // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10
|
||||
let _3: (i32, i32); // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10
|
||||
let _3: i32; // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10
|
||||
let _4: i32; // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10
|
||||
scope 3 {
|
||||
debug y => _3; // in scope 3 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10
|
||||
debug y => (i32, i32){ .0 => _3, .1 => _4, }; // in scope 3 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -23,8 +24,11 @@
|
||||
_2 = &mut _1; // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:13: +2:19
|
||||
((*_2).1: i32) = const 99_i32; // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+3:5: +3:13
|
||||
StorageLive(_3); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10
|
||||
_3 = _1; // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:13: +4:14
|
||||
StorageLive(_4); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10
|
||||
_3 = (_1.0: i32); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:13: +4:14
|
||||
_4 = (_1.1: i32); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:13: +4:14
|
||||
StorageDead(_3); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2
|
||||
StorageDead(_4); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2
|
||||
StorageDead(_2); // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2
|
||||
StorageDead(_1); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2
|
||||
return; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:2: +5:2
|
||||
|
||||
@ -10,13 +10,13 @@
|
||||
let mut _5: i32; // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
|
||||
let mut _6: i32; // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
|
||||
scope 2 {
|
||||
debug x => (i32, i32){ .1 => _5, .0 => _6, }; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
|
||||
debug x => (i32, i32){ .0 => _5, .1 => _6, }; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
|
||||
let _3: i32; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10
|
||||
scope 3 {
|
||||
debug y => _3; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10
|
||||
let _4: i32; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10
|
||||
scope 4 {
|
||||
debug z => _6; // in scope 4 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10
|
||||
debug z => _5; // in scope 4 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -31,17 +31,17 @@
|
||||
}
|
||||
|
||||
bb1: {
|
||||
StorageLive(_5); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
|
||||
_5 = const 2_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
|
||||
_6 = const 1_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
|
||||
StorageLive(_6); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14
|
||||
_5 = const 1_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
|
||||
_6 = const 2_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35
|
||||
StorageLive(_2); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12
|
||||
_2 = _1; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12
|
||||
_5 = move _2; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:5: +3:12
|
||||
_6 = move _2; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:5: +3:12
|
||||
StorageDead(_2); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12
|
||||
StorageLive(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10
|
||||
_3 = _5; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:13: +4:16
|
||||
_3 = _6; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:13: +4:16
|
||||
StorageDead(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
|
||||
StorageDead(_5); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
|
||||
StorageDead(_6); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
|
||||
StorageDead(_1); // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2
|
||||
return; // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:2: +6:2
|
||||
}
|
||||
|
||||
@ -11,6 +11,7 @@
|
||||
let mut _7: bool; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
|
||||
let mut _9: Point; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ let mut _10: u32; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ let mut _11: u32; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
scope 1 {
|
||||
debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10
|
||||
let _3: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10
|
||||
@ -51,11 +52,14 @@
|
||||
- _8 = (_9.1: u32); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38
|
||||
- StorageDead(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39
|
||||
+ StorageLive(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ StorageLive(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ _10 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ _10 = const 12_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ _11 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
|
||||
+ _8 = _10; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38
|
||||
+ _8 = _11; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38
|
||||
+ StorageDead(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39
|
||||
+ StorageDead(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39
|
||||
+ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39
|
||||
nop; // scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +4:2
|
||||
StorageDead(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2
|
||||
|
||||
@ -5,44 +5,65 @@
|
||||
debug x => _1; // in scope 0 at $DIR/sroa.rs:+0:11: +0:12
|
||||
let mut _0: (); // return place in scope 0 at $DIR/sroa.rs:+0:19: +0:19
|
||||
let _2: Foo; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ let _5: u8; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ let _6: &str; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
scope 1 {
|
||||
- debug y => _2; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ debug y => Foo{ .0 => _5, .2 => _6, }; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10
|
||||
debug y => _2; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10
|
||||
let _3: u8; // in scope 1 at $DIR/sroa.rs:+2:9: +2:10
|
||||
scope 2 {
|
||||
debug t => _3; // in scope 2 at $DIR/sroa.rs:+2:9: +2:10
|
||||
let _4: &str; // in scope 2 at $DIR/sroa.rs:+3:9: +3:10
|
||||
scope 3 {
|
||||
debug u => _4; // in scope 3 at $DIR/sroa.rs:+3:9: +3:10
|
||||
let _5: Foo; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ let _7: u8; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ let _8: (); // in scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ let _9: &str; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ let _10: std::option::Option<isize>; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
scope 4 {
|
||||
- debug z => _5; // in scope 4 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ debug z => Foo{ .0 => _7, .1 => _8, .2 => _9, .3 => _10, }; // in scope 4 at $DIR/sroa.rs:+4:9: +4:10
|
||||
let _6: (); // in scope 4 at $DIR/sroa.rs:+5:9: +5:10
|
||||
scope 5 {
|
||||
debug a => _6; // in scope 5 at $DIR/sroa.rs:+5:9: +5:10
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
bb0: {
|
||||
- StorageLive(_2); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
- _2 = _1; // scope 0 at $DIR/sroa.rs:+1:13: +1:14
|
||||
+ StorageLive(_5); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ StorageLive(_6); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ _5 = (_1.0: u8); // scope 0 at $DIR/sroa.rs:+1:13: +1:14
|
||||
+ _6 = (_1.2: &str); // scope 0 at $DIR/sroa.rs:+1:13: +1:14
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+1:13: +1:14
|
||||
StorageLive(_2); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
_2 = _1; // scope 0 at $DIR/sroa.rs:+1:13: +1:14
|
||||
StorageLive(_3); // scope 1 at $DIR/sroa.rs:+2:9: +2:10
|
||||
- _3 = (_2.0: u8); // scope 1 at $DIR/sroa.rs:+2:13: +2:16
|
||||
+ _3 = _5; // scope 1 at $DIR/sroa.rs:+2:13: +2:16
|
||||
_3 = (_2.0: u8); // scope 1 at $DIR/sroa.rs:+2:13: +2:16
|
||||
StorageLive(_4); // scope 2 at $DIR/sroa.rs:+3:9: +3:10
|
||||
- _4 = (_2.2: &str); // scope 2 at $DIR/sroa.rs:+3:13: +3:16
|
||||
+ _4 = _6; // scope 2 at $DIR/sroa.rs:+3:13: +3:16
|
||||
_0 = const (); // scope 0 at $DIR/sroa.rs:+0:19: +4:2
|
||||
StorageDead(_4); // scope 2 at $DIR/sroa.rs:+4:1: +4:2
|
||||
StorageDead(_3); // scope 1 at $DIR/sroa.rs:+4:1: +4:2
|
||||
- StorageDead(_2); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ StorageDead(_5); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ StorageDead(_6); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
return; // scope 0 at $DIR/sroa.rs:+4:2: +4:2
|
||||
_4 = (_2.2: &str); // scope 2 at $DIR/sroa.rs:+3:13: +3:16
|
||||
- StorageLive(_5); // scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
- _5 = _2; // scope 3 at $DIR/sroa.rs:+4:13: +4:14
|
||||
+ StorageLive(_7); // scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ StorageLive(_8); // scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ StorageLive(_9); // scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ StorageLive(_10); // scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ nop; // scope 3 at $DIR/sroa.rs:+4:9: +4:10
|
||||
+ _7 = (_2.0: u8); // scope 3 at $DIR/sroa.rs:+4:13: +4:14
|
||||
+ _8 = (_2.1: ()); // scope 3 at $DIR/sroa.rs:+4:13: +4:14
|
||||
+ _9 = (_2.2: &str); // scope 3 at $DIR/sroa.rs:+4:13: +4:14
|
||||
+ _10 = (_2.3: std::option::Option<isize>); // scope 3 at $DIR/sroa.rs:+4:13: +4:14
|
||||
+ nop; // scope 3 at $DIR/sroa.rs:+4:13: +4:14
|
||||
StorageLive(_6); // scope 4 at $DIR/sroa.rs:+5:9: +5:10
|
||||
- _6 = (_5.1: ()); // scope 4 at $DIR/sroa.rs:+5:13: +5:16
|
||||
+ _6 = _8; // scope 4 at $DIR/sroa.rs:+5:13: +5:16
|
||||
_0 = const (); // scope 0 at $DIR/sroa.rs:+0:19: +6:2
|
||||
StorageDead(_6); // scope 4 at $DIR/sroa.rs:+6:1: +6:2
|
||||
- StorageDead(_5); // scope 3 at $DIR/sroa.rs:+6:1: +6:2
|
||||
+ StorageDead(_7); // scope 3 at $DIR/sroa.rs:+6:1: +6:2
|
||||
+ StorageDead(_8); // scope 3 at $DIR/sroa.rs:+6:1: +6:2
|
||||
+ StorageDead(_9); // scope 3 at $DIR/sroa.rs:+6:1: +6:2
|
||||
+ StorageDead(_10); // scope 3 at $DIR/sroa.rs:+6:1: +6:2
|
||||
+ nop; // scope 3 at $DIR/sroa.rs:+6:1: +6:2
|
||||
StorageDead(_4); // scope 2 at $DIR/sroa.rs:+6:1: +6:2
|
||||
StorageDead(_3); // scope 1 at $DIR/sroa.rs:+6:1: +6:2
|
||||
StorageDead(_2); // scope 0 at $DIR/sroa.rs:+6:1: +6:2
|
||||
return; // scope 0 at $DIR/sroa.rs:+6:2: +6:2
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@ -6,10 +6,12 @@
|
||||
let mut _0: (); // return place in scope 0 at $DIR/sroa.rs:+0:24: +0:24
|
||||
let _2: Foo; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ let _5: u8; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ let _6: &str; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ let _6: (); // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ let _7: &str; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ let _8: std::option::Option<isize>; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
scope 1 {
|
||||
- debug y => _2; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ debug y => Foo{ .0 => _5, .2 => _6, }; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ debug y => Foo{ .0 => _5, .1 => _6, .2 => _7, .3 => _8, }; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10
|
||||
let _3: u8; // in scope 1 at $DIR/sroa.rs:+2:9: +2:10
|
||||
scope 2 {
|
||||
debug t => _3; // in scope 2 at $DIR/sroa.rs:+2:9: +2:10
|
||||
@ -25,22 +27,28 @@
|
||||
- _2 = (*_1); // scope 0 at $DIR/sroa.rs:+1:13: +1:15
|
||||
+ StorageLive(_5); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ StorageLive(_6); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ StorageLive(_7); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ StorageLive(_8); // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+1:9: +1:10
|
||||
+ _5 = ((*_1).0: u8); // scope 0 at $DIR/sroa.rs:+1:13: +1:15
|
||||
+ _6 = ((*_1).2: &str); // scope 0 at $DIR/sroa.rs:+1:13: +1:15
|
||||
+ _6 = ((*_1).1: ()); // scope 0 at $DIR/sroa.rs:+1:13: +1:15
|
||||
+ _7 = ((*_1).2: &str); // scope 0 at $DIR/sroa.rs:+1:13: +1:15
|
||||
+ _8 = ((*_1).3: std::option::Option<isize>); // scope 0 at $DIR/sroa.rs:+1:13: +1:15
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+1:13: +1:15
|
||||
StorageLive(_3); // scope 1 at $DIR/sroa.rs:+2:9: +2:10
|
||||
- _3 = (_2.0: u8); // scope 1 at $DIR/sroa.rs:+2:13: +2:16
|
||||
+ _3 = _5; // scope 1 at $DIR/sroa.rs:+2:13: +2:16
|
||||
StorageLive(_4); // scope 2 at $DIR/sroa.rs:+3:9: +3:10
|
||||
- _4 = (_2.2: &str); // scope 2 at $DIR/sroa.rs:+3:13: +3:16
|
||||
+ _4 = _6; // scope 2 at $DIR/sroa.rs:+3:13: +3:16
|
||||
+ _4 = _7; // scope 2 at $DIR/sroa.rs:+3:13: +3:16
|
||||
_0 = const (); // scope 0 at $DIR/sroa.rs:+0:24: +4:2
|
||||
StorageDead(_4); // scope 2 at $DIR/sroa.rs:+4:1: +4:2
|
||||
StorageDead(_3); // scope 1 at $DIR/sroa.rs:+4:1: +4:2
|
||||
- StorageDead(_2); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ StorageDead(_5); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ StorageDead(_6); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ StorageDead(_7); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ StorageDead(_8); // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+4:1: +4:2
|
||||
return; // scope 0 at $DIR/sroa.rs:+4:2: +4:2
|
||||
}
|
||||
|
||||
@ -77,6 +77,8 @@ fn copies(x: Foo) {
|
||||
let y = x;
|
||||
let t = y.a;
|
||||
let u = y.c;
|
||||
let z = y;
|
||||
let a = z.b;
|
||||
}
|
||||
|
||||
fn ref_copies(x: &Foo) {
|
||||
|
||||
@ -6,22 +6,26 @@
|
||||
let mut _0: f32; // return place in scope 0 at $DIR/sroa.rs:+0:27: +0:30
|
||||
let mut _2: structs::U; // in scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
let mut _3: f32; // in scope 0 at $DIR/sroa.rs:+6:18: +6:19
|
||||
+ let mut _4: f32; // in scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ let mut _4: usize; // in scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ let mut _5: f32; // in scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
|
||||
bb0: {
|
||||
- StorageLive(_2); // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ StorageLive(_4); // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ StorageLive(_5); // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
StorageLive(_3); // scope 0 at $DIR/sroa.rs:+6:18: +6:19
|
||||
_3 = _1; // scope 0 at $DIR/sroa.rs:+6:18: +6:19
|
||||
- _2 = U { _foo: const 0_usize, a: move _3 }; // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ _4 = move _3; // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ _4 = const 0_usize; // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ _5 = move _3; // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+6:5: +6:21
|
||||
StorageDead(_3); // scope 0 at $DIR/sroa.rs:+6:20: +6:21
|
||||
- _0 = (_2.1: f32); // scope 0 at $DIR/sroa.rs:+6:5: +6:23
|
||||
- StorageDead(_2); // scope 0 at $DIR/sroa.rs:+7:1: +7:2
|
||||
+ _0 = _4; // scope 0 at $DIR/sroa.rs:+6:5: +6:23
|
||||
+ _0 = _5; // scope 0 at $DIR/sroa.rs:+6:5: +6:23
|
||||
+ StorageDead(_4); // scope 0 at $DIR/sroa.rs:+7:1: +7:2
|
||||
+ StorageDead(_5); // scope 0 at $DIR/sroa.rs:+7:1: +7:2
|
||||
+ nop; // scope 0 at $DIR/sroa.rs:+7:1: +7:2
|
||||
return; // scope 0 at $DIR/sroa.rs:+7:2: +7:2
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user