Merging upstream version 1.69.0+dfsg1.

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

3 files changed, 12 insertions, 13 deletions

diff --git a/compiler/rustc_mir_build/src/build/matches/mod.rs b/compiler/rustc_mir_build/src/build/matches/mod.rs
index 0961ce11e..de2851a1a 100644
--- a/compiler/rustc_mir_build/src/build/matches/mod.rs
+++ b/compiler/rustc_mir_build/src/build/matches/mod.rs
@@ -1206,7 +1206,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
 
                     fake_borrows.insert(Place {
                         local: source.local,
-                        projection: self.tcx.intern_place_elems(proj_base),
+                        projection: self.tcx.mk_place_elems(proj_base),
                     });
                 }
             }
@@ -1743,12 +1743,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
             .map(|matched_place_ref| {
                 let matched_place = Place {
                     local: matched_place_ref.local,
-                    projection: tcx.intern_place_elems(matched_place_ref.projection),
+                    projection: tcx.mk_place_elems(matched_place_ref.projection),
                 };
                 let fake_borrow_deref_ty = matched_place.ty(&self.local_decls, tcx).ty;
                 let fake_borrow_ty = tcx.mk_imm_ref(tcx.lifetimes.re_erased, fake_borrow_deref_ty);
-                let fake_borrow_temp =
-                    self.local_decls.push(LocalDecl::new(fake_borrow_ty, temp_span));
+                let mut fake_borrow_temp = LocalDecl::new(fake_borrow_ty, temp_span);
+                fake_borrow_temp.internal = self.local_decls[matched_place.local].internal;
+                fake_borrow_temp.local_info = Some(Box::new(LocalInfo::FakeBorrow));
+                let fake_borrow_temp = self.local_decls.push(fake_borrow_temp);
 
                 (matched_place, fake_borrow_temp)
             })
diff --git a/compiler/rustc_mir_build/src/build/matches/test.rs b/compiler/rustc_mir_build/src/build/matches/test.rs
index ad7a568a2..2de89f67d 100644
--- a/compiler/rustc_mir_build/src/build/matches/test.rs
+++ b/compiler/rustc_mir_build/src/build/matches/test.rs
@@ -563,14 +563,11 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
                 let not_contained =
                     self.values_not_contained_in_range(&*range, options).unwrap_or(false);
 
-                if not_contained {
+                not_contained.then(|| {
                     // No switch values are contained in the pattern range,
                     // so the pattern can be matched only if this test fails.
-                    let otherwise = options.len();
-                    Some(otherwise)
-                } else {
-                    None
-                }
+                    options.len()
+                })
             }
 
             (&TestKind::SwitchInt { .. }, _) => None,
@@ -835,7 +832,7 @@ fn trait_method<'tcx>(
     tcx: TyCtxt<'tcx>,
     trait_def_id: DefId,
     method_name: Symbol,
-    substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>,
+    substs: impl IntoIterator<Item: Into<GenericArg<'tcx>>>,
 ) -> ConstantKind<'tcx> {
     // The unhygienic comparison here is acceptable because this is only
     // used on known traits.
diff --git a/compiler/rustc_mir_build/src/build/matches/util.rs b/compiler/rustc_mir_build/src/build/matches/util.rs
index cbd494862..c34105174 100644
--- a/compiler/rustc_mir_build/src/build/matches/util.rs
+++ b/compiler/rustc_mir_build/src/build/matches/util.rs
@@ -5,7 +5,7 @@ use crate::build::Builder;
 use rustc_middle::mir::*;
 use rustc_middle::thir::*;
 use rustc_middle::ty;
-use rustc_middle::ty::TypeVisitable;
+use rustc_middle::ty::TypeVisitableExt;
 use smallvec::SmallVec;
 
 impl<'a, 'tcx> Builder<'a, 'tcx> {
@@ -35,7 +35,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
         let tcx = self.tcx;
         let (min_length, exact_size) = if let Some(place_resolved) = place.try_to_place(self) {
             match place_resolved.ty(&self.local_decls, tcx).ty.kind() {
-                ty::Array(_, length) => (length.eval_usize(tcx, self.param_env), true),
+                ty::Array(_, length) => (length.eval_target_usize(tcx, self.param_env), true),
                 _ => ((prefix.len() + suffix.len()).try_into().unwrap(), false),
             }
         } else {