Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 10 insertions, 9 deletions

diff --git a/compiler/rustc_mir_dataflow/src/impls/liveness.rs b/compiler/rustc_mir_dataflow/src/impls/liveness.rs
index 3e08a8799..923dc16c1 100644
--- a/compiler/rustc_mir_dataflow/src/impls/liveness.rs
+++ b/compiler/rustc_mir_dataflow/src/impls/liveness.rs
@@ -149,7 +149,7 @@ enum DefUse {
 }
 
 impl DefUse {
-    fn apply<'tcx>(trans: &mut impl GenKill<Local>, place: Place<'tcx>, context: PlaceContext) {
+    fn apply(trans: &mut impl GenKill<Local>, place: Place<'_>, context: PlaceContext) {
         match DefUse::for_place(place, context) {
             Some(DefUse::Def) => trans.kill(place.local),
             Some(DefUse::Use) => trans.gen(place.local),
@@ -157,7 +157,7 @@ impl DefUse {
         }
     }
 
-    fn for_place<'tcx>(place: Place<'tcx>, context: PlaceContext) -> Option<DefUse> {
+    fn for_place(place: Place<'_>, context: PlaceContext) -> Option<DefUse> {
         match context {
             PlaceContext::NonUse(_) => None,
 
diff --git a/compiler/rustc_mir_dataflow/src/impls/mod.rs b/compiler/rustc_mir_dataflow/src/impls/mod.rs
index bc31ec42b..4b5324e20 100644
--- a/compiler/rustc_mir_dataflow/src/impls/mod.rs
+++ b/compiler/rustc_mir_dataflow/src/impls/mod.rs
@@ -750,7 +750,7 @@ where
 
 /// Calls `f` for each mutable borrow or raw reference in the program.
 ///
-/// This DOES NOT call `f` for a shared borrow of a type with interior mutability.  That's okay for
+/// This DOES NOT call `f` for a shared borrow of a type with interior mutability. That's okay for
 /// initializedness, because we cannot move from an `UnsafeCell` (outside of `core::cell`), but
 /// other analyses will likely need to check for `!Freeze`.
 fn for_each_mut_borrow<'tcx>(
diff --git a/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs b/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs
index 18760b6c6..8d379b90a 100644
--- a/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs
+++ b/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs
@@ -3,20 +3,21 @@ pub use super::*;
 use crate::{CallReturnPlaces, GenKill, Results, ResultsRefCursor};
 use rustc_middle::mir::visit::{NonMutatingUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::*;
+use std::borrow::Cow;
 use std::cell::RefCell;
 
 #[derive(Clone)]
-pub struct MaybeStorageLive {
-    always_live_locals: BitSet<Local>,
+pub struct MaybeStorageLive<'a> {
+    always_live_locals: Cow<'a, BitSet<Local>>,
 }
 
-impl MaybeStorageLive {
-    pub fn new(always_live_locals: BitSet<Local>) -> Self {
+impl<'a> MaybeStorageLive<'a> {
+    pub fn new(always_live_locals: Cow<'a, BitSet<Local>>) -> Self {
         MaybeStorageLive { always_live_locals }
     }
 }
 
-impl<'tcx> crate::AnalysisDomain<'tcx> for MaybeStorageLive {
+impl<'tcx, 'a> crate::AnalysisDomain<'tcx> for MaybeStorageLive<'a> {
     type Domain = BitSet<Local>;
 
     const NAME: &'static str = "maybe_storage_live";
@@ -38,7 +39,7 @@ impl<'tcx> crate::AnalysisDomain<'tcx> for MaybeStorageLive {
     }
 }
 
-impl<'tcx> crate::GenKillAnalysis<'tcx> for MaybeStorageLive {
+impl<'tcx, 'a> crate::GenKillAnalysis<'tcx> for MaybeStorageLive<'a> {
     type Idx = Local;
 
     fn statement_effect(