1 files changed, 7 insertions, 21 deletions

diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs
index 4e8798b7a..16b7dcad1 100644
--- a/compiler/rustc_mir_transform/src/shim.rs
+++ b/compiler/rustc_mir_transform/src/shim.rs
@@ -37,7 +37,7 @@ fn make_shim<'tcx>(tcx: TyCtxt<'tcx>, instance: ty::InstanceDef<'tcx>) -> Body<'
         }
         ty::InstanceDef::FnPtrShim(def_id, ty) => {
             let trait_ = tcx.trait_of_item(def_id).unwrap();
-            let adjustment = match tcx.fn_trait_kind_from_lang_item(trait_) {
+            let adjustment = match tcx.fn_trait_kind_from_def_id(trait_) {
                 Some(ty::ClosureKind::FnOnce) => Adjustment::Identity,
                 Some(ty::ClosureKind::FnMut | ty::ClosureKind::Fn) => Adjustment::Deref,
                 None => bug!("fn pointer {:?} is not an fn", ty),
@@ -177,16 +177,6 @@ fn build_drop_shim<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId, ty: Option<Ty<'tcx>>)
     if ty.is_some() {
         // The first argument (index 0), but add 1 for the return value.
         let dropee_ptr = Place::from(Local::new(1 + 0));
-        if tcx.sess.opts.unstable_opts.mir_emit_retag {
-            // Function arguments should be retagged, and we make this one raw.
-            body.basic_blocks_mut()[START_BLOCK].statements.insert(
-                0,
-                Statement {
-                    source_info,
-                    kind: StatementKind::Retag(RetagKind::Raw, Box::new(dropee_ptr)),
-                },
-            );
-        }
         let patch = {
             let param_env = tcx.param_env_reveal_all_normalized(def_id);
             let mut elaborator =
@@ -346,7 +336,7 @@ impl<'tcx> CloneShimBuilder<'tcx> {
         // we must subst the self_ty because it's
         // otherwise going to be TySelf and we can't index
         // or access fields of a Place of type TySelf.
-        let substs = tcx.mk_substs_trait(self_ty, &[]);
+        let substs = tcx.mk_substs_trait(self_ty, []);
         let sig = tcx.bound_fn_sig(def_id).subst(tcx, substs);
         let sig = tcx.erase_late_bound_regions(sig);
         let span = tcx.def_span(def_id);
@@ -427,7 +417,7 @@ impl<'tcx> CloneShimBuilder<'tcx> {
     ) {
         let tcx = self.tcx;
 
-        let substs = tcx.mk_substs_trait(ty, &[]);
+        let substs = tcx.mk_substs_trait(ty, []);
 
         // `func == Clone::clone(&ty) -> ty`
         let func_ty = tcx.mk_fn_def(self.def_id, substs);
@@ -569,17 +559,13 @@ impl<'tcx> CloneShimBuilder<'tcx> {
 
 /// Builds a "call" shim for `instance`. The shim calls the function specified by `call_kind`,
 /// first adjusting its first argument according to `rcvr_adjustment`.
+#[instrument(level = "debug", skip(tcx), ret)]
 fn build_call_shim<'tcx>(
     tcx: TyCtxt<'tcx>,
     instance: ty::InstanceDef<'tcx>,
     rcvr_adjustment: Option<Adjustment>,
     call_kind: CallKind<'tcx>,
 ) -> Body<'tcx> {
-    debug!(
-        "build_call_shim(instance={:?}, rcvr_adjustment={:?}, call_kind={:?})",
-        instance, rcvr_adjustment, call_kind
-    );
-
     // `FnPtrShim` contains the fn pointer type that a call shim is being built for - this is used
     // to substitute into the signature of the shim. It is not necessary for users of this
     // MIR body to perform further substitutions (see `InstanceDef::has_polymorphic_mir_body`).
@@ -590,7 +576,7 @@ fn build_call_shim<'tcx>(
 
         // Create substitutions for the `Self` and `Args` generic parameters of the shim body.
         let arg_tup = tcx.mk_tup(untuple_args.iter());
-        let sig_substs = tcx.mk_substs_trait(ty, &[ty::subst::GenericArg::from(arg_tup)]);
+        let sig_substs = tcx.mk_substs_trait(ty, [ty::subst::GenericArg::from(arg_tup)]);
 
         (Some(sig_substs), Some(untuple_args))
     } else {
@@ -641,7 +627,7 @@ fn build_call_shim<'tcx>(
 
     let span = tcx.def_span(def_id);
 
-    debug!("build_call_shim: sig={:?}", sig);
+    debug!(?sig);
 
     let mut local_decls = local_decls_for_sig(&sig, span);
     let source_info = SourceInfo::outermost(span);
@@ -845,7 +831,7 @@ pub fn build_adt_ctor(tcx: TyCtxt<'_>, ctor_id: DefId) -> Body<'_> {
         span,
     );
 
-    rustc_middle::mir::dump_mir(tcx, None, "mir_map", &0, &body, |_, _| Ok(()));
+    crate::pass_manager::dump_mir_for_phase_change(tcx, &body);
 
     body
 }