3 files changed, 12 insertions, 15 deletions
diff --git a/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs b/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs
index 7d77fffa83f..29a9133abe9 100644
--- a/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs
+++ b/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs
@@ -2,7 +2,7 @@ use std::cell::RefCell;
 use std::collections::hash_map;
 use std::rc::Rc;
 
-use rustc_data_structures::fx::{FxHashMap, FxHashSet};
+use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap};
 use rustc_data_structures::unord::{UnordMap, UnordSet};
 use rustc_errors::Subdiagnostic;
 use rustc_hir::CRATE_HIR_ID;
@@ -25,7 +25,6 @@ use rustc_mir_dataflow::{Analysis, MaybeReachable, ResultsCursor};
 use rustc_session::lint::builtin::TAIL_EXPR_DROP_ORDER;
 use rustc_session::lint::{self};
 use rustc_span::{DUMMY_SP, Span, Symbol};
-use rustc_type_ir::data_structures::IndexMap;
 use tracing::debug;
 
 fn place_has_common_prefix<'tcx>(left: &Place<'tcx>, right: &Place<'tcx>) -> bool {
@@ -199,7 +198,7 @@ pub(crate) fn run_lint<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId, body: &Body<
     // and, for each block, the vector of locations.
     //
     // We group them per-block because they tend to scheduled in the same drop ladder block.
-    let mut bid_per_block = IndexMap::default();
+    let mut bid_per_block = FxIndexMap::default();
     let mut bid_places = UnordSet::new();
 
     let mut ty_dropped_components = UnordMap::default();
@@ -455,8 +454,8 @@ pub(crate) fn run_lint<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId, body: &Body<
 }
 
 /// Extract binding names if available for diagnosis
-fn collect_user_names(body: &Body<'_>) -> IndexMap<Local, Symbol> {
-    let mut names = IndexMap::default();
+fn collect_user_names(body: &Body<'_>) -> FxIndexMap<Local, Symbol> {
+    let mut names = FxIndexMap::default();
     for var_debug_info in &body.var_debug_info {
         if let mir::VarDebugInfoContents::Place(place) = &var_debug_info.value
             && let Some(local) = place.local_or_deref_local()
@@ -470,9 +469,9 @@ fn collect_user_names(body: &Body<'_>) -> IndexMap<Local, Symbol> {
 /// Assign names for anonymous or temporary values for diagnosis
 fn assign_observables_names(
     locals: impl IntoIterator<Item = Local>,
-    user_names: &IndexMap<Local, Symbol>,
-) -> IndexMap<Local, (String, bool)> {
-    let mut names = IndexMap::default();
+    user_names: &FxIndexMap<Local, Symbol>,
+) -> FxIndexMap<Local, (String, bool)> {
+    let mut names = FxIndexMap::default();
     let mut assigned_names = FxHashSet::default();
     let mut idx = 0u64;
     let mut fresh_name = || {
diff --git a/compiler/rustc_mir_transform/src/match_branches.rs b/compiler/rustc_mir_transform/src/match_branches.rs
index 9db37bf5a07..0d9d0368d37 100644
--- a/compiler/rustc_mir_transform/src/match_branches.rs
+++ b/compiler/rustc_mir_transform/src/match_branches.rs
@@ -5,7 +5,6 @@ use rustc_index::IndexSlice;
 use rustc_middle::mir::*;
 use rustc_middle::ty::layout::{IntegerExt, TyAndLayout};
 use rustc_middle::ty::{self, ScalarInt, Ty, TyCtxt};
-use rustc_type_ir::TyKind::*;
 use tracing::instrument;
 
 use super::simplify::simplify_cfg;
@@ -293,13 +292,13 @@ fn can_cast(
 ) -> bool {
     let from_scalar = ScalarInt::try_from_uint(src_val.into(), src_layout.size).unwrap();
     let v = match src_layout.ty.kind() {
-        Uint(_) => from_scalar.to_uint(src_layout.size),
-        Int(_) => from_scalar.to_int(src_layout.size) as u128,
+        ty::Uint(_) => from_scalar.to_uint(src_layout.size),
+        ty::Int(_) => from_scalar.to_int(src_layout.size) as u128,
         _ => unreachable!("invalid int"),
     };
     let size = match *cast_ty.kind() {
-        Int(t) => Integer::from_int_ty(&tcx, t).size(),
-        Uint(t) => Integer::from_uint_ty(&tcx, t).size(),
+        ty::Int(t) => Integer::from_int_ty(&tcx, t).size(),
+        ty::Uint(t) => Integer::from_uint_ty(&tcx, t).size(),
         _ => unreachable!("invalid int"),
     };
     let v = size.truncate(v);
diff --git a/compiler/rustc_mir_transform/src/validate.rs b/compiler/rustc_mir_transform/src/validate.rs
index 4ac3a268c9c..231d7c2ef02 100644
--- a/compiler/rustc_mir_transform/src/validate.rs
+++ b/compiler/rustc_mir_transform/src/validate.rs
@@ -13,11 +13,10 @@ use rustc_middle::mir::visit::{NonUseContext, PlaceContext, Visitor};
 use rustc_middle::mir::*;
 use rustc_middle::ty::adjustment::PointerCoercion;
 use rustc_middle::ty::{
-    self, CoroutineArgsExt, InstanceKind, ScalarInt, Ty, TyCtxt, TypeVisitableExt, Variance,
+    self, CoroutineArgsExt, InstanceKind, ScalarInt, Ty, TyCtxt, TypeVisitableExt, Upcast, Variance,
 };
 use rustc_middle::{bug, span_bug};
 use rustc_trait_selection::traits::ObligationCtxt;
-use rustc_type_ir::Upcast;
 
 use crate::util::{self, is_within_packed};