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-rw-r--r--compiler/rustc_query_impl/src/keys.rs188
-rw-r--r--compiler/rustc_query_impl/src/lib.rs7
-rw-r--r--compiler/rustc_query_impl/src/plumbing.rs82
-rw-r--r--compiler/rustc_query_impl/src/profiling_support.rs21
-rw-r--r--compiler/rustc_query_impl/src/stats.rs9
5 files changed, 151 insertions, 156 deletions
diff --git a/compiler/rustc_query_impl/src/keys.rs b/compiler/rustc_query_impl/src/keys.rs
index 1fdb37398f9..b3cc7de4662 100644
--- a/compiler/rustc_query_impl/src/keys.rs
+++ b/compiler/rustc_query_impl/src/keys.rs
@@ -14,16 +14,28 @@ use rustc_span::{Span, DUMMY_SP};
 pub trait Key {
     /// Given an instance of this key, what crate is it referring to?
     /// This is used to find the provider.
-    fn query_crate(&self) -> CrateNum;
+    fn query_crate_is_local(&self) -> bool;
 
     /// In the event that a cycle occurs, if no explicit span has been
     /// given for a query with key `self`, what span should we use?
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span;
 }
 
+impl Key for () {
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
+    }
+
+    fn default_span(&self, _: TyCtxt<'_>) -> Span {
+        DUMMY_SP
+    }
+}
+
 impl<'tcx> Key for ty::InstanceDef<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
 
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
@@ -32,8 +44,9 @@ impl<'tcx> Key for ty::InstanceDef<'tcx> {
 }
 
 impl<'tcx> Key for ty::Instance<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
 
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
@@ -42,8 +55,9 @@ impl<'tcx> Key for ty::Instance<'tcx> {
 }
 
 impl<'tcx> Key for mir::interpret::GlobalId<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        self.instance.query_crate()
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
 
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
@@ -52,8 +66,9 @@ impl<'tcx> Key for mir::interpret::GlobalId<'tcx> {
 }
 
 impl<'tcx> Key for mir::interpret::LitToConstInput<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
 
     fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
@@ -62,8 +77,9 @@ impl<'tcx> Key for mir::interpret::LitToConstInput<'tcx> {
 }
 
 impl Key for CrateNum {
-    fn query_crate(&self) -> CrateNum {
-        *self
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        *self == LOCAL_CRATE
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -71,8 +87,9 @@ impl Key for CrateNum {
 }
 
 impl Key for LocalDefId {
-    fn query_crate(&self) -> CrateNum {
-        self.to_def_id().query_crate()
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.to_def_id().default_span(tcx)
@@ -80,8 +97,9 @@ impl Key for LocalDefId {
 }
 
 impl Key for DefId {
-    fn query_crate(&self) -> CrateNum {
-        self.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         tcx.def_span(*self)
@@ -89,8 +107,9 @@ impl Key for DefId {
 }
 
 impl Key for ty::WithOptConstParam<LocalDefId> {
-    fn query_crate(&self) -> CrateNum {
-        self.did.query_crate()
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.did.default_span(tcx)
@@ -98,8 +117,9 @@ impl Key for ty::WithOptConstParam<LocalDefId> {
 }
 
 impl Key for (DefId, DefId) {
-    fn query_crate(&self) -> CrateNum {
-        self.0.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.0.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.1.default_span(tcx)
@@ -107,8 +127,9 @@ impl Key for (DefId, DefId) {
 }
 
 impl Key for (ty::Instance<'tcx>, LocalDefId) {
-    fn query_crate(&self) -> CrateNum {
-        self.0.query_crate()
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.0.default_span(tcx)
@@ -116,8 +137,9 @@ impl Key for (ty::Instance<'tcx>, LocalDefId) {
 }
 
 impl Key for (DefId, LocalDefId) {
-    fn query_crate(&self) -> CrateNum {
-        self.0.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.0.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.1.default_span(tcx)
@@ -125,8 +147,9 @@ impl Key for (DefId, LocalDefId) {
 }
 
 impl Key for (LocalDefId, DefId) {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.0.default_span(tcx)
@@ -134,8 +157,9 @@ impl Key for (LocalDefId, DefId) {
 }
 
 impl Key for (DefId, Option<Ident>) {
-    fn query_crate(&self) -> CrateNum {
-        self.0.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.0.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         tcx.def_span(self.0)
@@ -143,8 +167,9 @@ impl Key for (DefId, Option<Ident>) {
 }
 
 impl Key for (DefId, LocalDefId, Ident) {
-    fn query_crate(&self) -> CrateNum {
-        self.0.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.0.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.1.default_span(tcx)
@@ -152,8 +177,9 @@ impl Key for (DefId, LocalDefId, Ident) {
 }
 
 impl Key for (CrateNum, DefId) {
-    fn query_crate(&self) -> CrateNum {
-        self.0
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.0 == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.1.default_span(tcx)
@@ -161,8 +187,9 @@ impl Key for (CrateNum, DefId) {
 }
 
 impl Key for (DefId, SimplifiedType) {
-    fn query_crate(&self) -> CrateNum {
-        self.0.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.0.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.0.default_span(tcx)
@@ -170,8 +197,9 @@ impl Key for (DefId, SimplifiedType) {
 }
 
 impl<'tcx> Key for SubstsRef<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -179,8 +207,9 @@ impl<'tcx> Key for SubstsRef<'tcx> {
 }
 
 impl<'tcx> Key for (DefId, SubstsRef<'tcx>) {
-    fn query_crate(&self) -> CrateNum {
-        self.0.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.0.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.0.default_span(tcx)
@@ -193,8 +222,9 @@ impl<'tcx> Key
         (ty::WithOptConstParam<DefId>, SubstsRef<'tcx>),
     )
 {
-    fn query_crate(&self) -> CrateNum {
-        (self.0).0.did.krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        (self.0).0.did.krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         (self.0).0.did.default_span(tcx)
@@ -202,8 +232,9 @@ impl<'tcx> Key
 }
 
 impl<'tcx> Key for (LocalDefId, DefId, SubstsRef<'tcx>) {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.0.default_span(tcx)
@@ -211,8 +242,9 @@ impl<'tcx> Key for (LocalDefId, DefId, SubstsRef<'tcx>) {
 }
 
 impl<'tcx> Key for (ty::ParamEnv<'tcx>, ty::PolyTraitRef<'tcx>) {
-    fn query_crate(&self) -> CrateNum {
-        self.1.def_id().krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.1.def_id().krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         tcx.def_span(self.1.def_id())
@@ -220,8 +252,9 @@ impl<'tcx> Key for (ty::ParamEnv<'tcx>, ty::PolyTraitRef<'tcx>) {
 }
 
 impl<'tcx> Key for (&'tcx ty::Const<'tcx>, mir::Field) {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -229,8 +262,9 @@ impl<'tcx> Key for (&'tcx ty::Const<'tcx>, mir::Field) {
 }
 
 impl<'tcx> Key for mir::interpret::ConstAlloc<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -238,8 +272,9 @@ impl<'tcx> Key for mir::interpret::ConstAlloc<'tcx> {
 }
 
 impl<'tcx> Key for ty::PolyTraitRef<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        self.def_id().krate
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.def_id().krate == LOCAL_CRATE
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         tcx.def_span(self.def_id())
@@ -247,8 +282,9 @@ impl<'tcx> Key for ty::PolyTraitRef<'tcx> {
 }
 
 impl<'tcx> Key for GenericArg<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -256,8 +292,9 @@ impl<'tcx> Key for GenericArg<'tcx> {
 }
 
 impl<'tcx> Key for mir::ConstantKind<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -265,8 +302,9 @@ impl<'tcx> Key for mir::ConstantKind<'tcx> {
 }
 
 impl<'tcx> Key for &'tcx ty::Const<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -274,8 +312,9 @@ impl<'tcx> Key for &'tcx ty::Const<'tcx> {
 }
 
 impl<'tcx> Key for Ty<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -283,8 +322,9 @@ impl<'tcx> Key for Ty<'tcx> {
 }
 
 impl<'tcx> Key for &'tcx ty::List<ty::Predicate<'tcx>> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -292,8 +332,9 @@ impl<'tcx> Key for &'tcx ty::List<ty::Predicate<'tcx>> {
 }
 
 impl<'tcx> Key for ty::ParamEnv<'tcx> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -301,8 +342,9 @@ impl<'tcx> Key for ty::ParamEnv<'tcx> {
 }
 
 impl<'tcx, T: Key> Key for ty::ParamEnvAnd<'tcx, T> {
-    fn query_crate(&self) -> CrateNum {
-        self.value.query_crate()
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        self.value.query_crate_is_local()
     }
     fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
         self.value.default_span(tcx)
@@ -310,8 +352,9 @@ impl<'tcx, T: Key> Key for ty::ParamEnvAnd<'tcx, T> {
 }
 
 impl Key for Symbol {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
     fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
         DUMMY_SP
@@ -321,8 +364,9 @@ impl Key for Symbol {
 /// Canonical query goals correspond to abstract trait operations that
 /// are not tied to any crate in particular.
 impl<'tcx, T> Key for Canonical<'tcx, T> {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
 
     fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
@@ -331,8 +375,9 @@ impl<'tcx, T> Key for Canonical<'tcx, T> {
 }
 
 impl Key for (Symbol, u32, u32) {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
 
     fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
@@ -341,8 +386,9 @@ impl Key for (Symbol, u32, u32) {
 }
 
 impl<'tcx> Key for (DefId, Ty<'tcx>, SubstsRef<'tcx>, ty::ParamEnv<'tcx>) {
-    fn query_crate(&self) -> CrateNum {
-        LOCAL_CRATE
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
     }
 
     fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
diff --git a/compiler/rustc_query_impl/src/lib.rs b/compiler/rustc_query_impl/src/lib.rs
index 00d886000fa..1d831affd1d 100644
--- a/compiler/rustc_query_impl/src/lib.rs
+++ b/compiler/rustc_query_impl/src/lib.rs
@@ -2,13 +2,9 @@
 
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
 #![feature(in_band_lifetimes)]
-#![feature(exhaustive_patterns)]
 #![feature(nll)]
 #![feature(min_specialization)]
-#![feature(crate_visibility_modifier)]
-#![feature(once_cell)]
 #![feature(rustc_attrs)]
-#![feature(never_type)]
 #![recursion_limit = "256"]
 
 #[macro_use]
@@ -19,14 +15,13 @@ extern crate tracing;
 use rustc_data_structures::fingerprint::Fingerprint;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_errors::{DiagnosticBuilder, Handler};
-use rustc_hir::def_id::LOCAL_CRATE;
 use rustc_middle::dep_graph;
 use rustc_middle::ich::StableHashingContext;
 use rustc_middle::ty::query::{query_keys, query_storage, query_stored, query_values};
 use rustc_middle::ty::query::{Providers, QueryEngine};
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_serialize::opaque;
-use rustc_span::{Span, DUMMY_SP};
+use rustc_span::Span;
 
 #[macro_use]
 mod plumbing;
diff --git a/compiler/rustc_query_impl/src/plumbing.rs b/compiler/rustc_query_impl/src/plumbing.rs
index 4194b28dc7d..5907a587e16 100644
--- a/compiler/rustc_query_impl/src/plumbing.rs
+++ b/compiler/rustc_query_impl/src/plumbing.rs
@@ -3,7 +3,7 @@
 //! manage the caches, and so forth.
 
 use super::queries;
-use rustc_middle::dep_graph::{DepKind, DepNode, DepNodeExt, DepNodeIndex, SerializedDepNodeIndex};
+use rustc_middle::dep_graph::{DepKind, DepNode, DepNodeIndex, SerializedDepNodeIndex};
 use rustc_middle::ty::query::on_disk_cache;
 use rustc_middle::ty::tls::{self, ImplicitCtxt};
 use rustc_middle::ty::{self, TyCtxt};
@@ -14,7 +14,7 @@ use rustc_data_structures::sync::Lock;
 use rustc_data_structures::thin_vec::ThinVec;
 use rustc_errors::Diagnostic;
 use rustc_serialize::opaque;
-use rustc_span::def_id::{DefId, LocalDefId};
+use rustc_span::def_id::LocalDefId;
 
 #[derive(Copy, Clone)]
 pub struct QueryCtxt<'tcx> {
@@ -25,6 +25,7 @@ pub struct QueryCtxt<'tcx> {
 impl<'tcx> std::ops::Deref for QueryCtxt<'tcx> {
     type Target = TyCtxt<'tcx>;
 
+    #[inline]
     fn deref(&self) -> &Self::Target {
         &self.tcx
     }
@@ -42,10 +43,6 @@ impl HasDepContext for QueryCtxt<'tcx> {
 }
 
 impl QueryContext for QueryCtxt<'tcx> {
-    fn def_path_str(&self, def_id: DefId) -> String {
-        self.tcx.def_path_str(def_id)
-    }
-
     fn current_query_job(&self) -> Option<QueryJobId<Self::DepKind>> {
         tls::with_related_context(**self, |icx| icx.query)
     }
@@ -60,39 +57,6 @@ impl QueryContext for QueryCtxt<'tcx> {
     }
 
     fn try_force_from_dep_node(&self, dep_node: &DepNode) -> bool {
-        // FIXME: This match is just a workaround for incremental bugs and should
-        // be removed. https://github.com/rust-lang/rust/issues/62649 is one such
-        // bug that must be fixed before removing this.
-        match dep_node.kind {
-            DepKind::hir_owner | DepKind::hir_owner_nodes => {
-                if let Some(def_id) = dep_node.extract_def_id(**self) {
-                    let def_id = def_id.expect_local();
-                    let hir_id = self.tcx.hir().local_def_id_to_hir_id(def_id);
-                    if def_id != hir_id.owner {
-                        // This `DefPath` does not have a
-                        // corresponding `DepNode` (e.g. a
-                        // struct field), and the ` DefPath`
-                        // collided with the `DefPath` of a
-                        // proper item that existed in the
-                        // previous compilation session.
-                        //
-                        // Since the given `DefPath` does not
-                        // denote the item that previously
-                        // existed, we just fail to mark green.
-                        return false;
-                    }
-                } else {
-                    // If the node does not exist anymore, we
-                    // just fail to mark green.
-                    return false;
-                }
-            }
-            _ => {
-                // For other kinds of nodes it's OK to be
-                // forced.
-            }
-        }
-
         debug!("try_force_from_dep_node({:?}) --- trying to force", dep_node);
 
         // We must avoid ever having to call `force_from_dep_node()` for a
@@ -389,14 +353,14 @@ macro_rules! define_queries {
             }
 
             #[inline]
-            fn compute(tcx: QueryCtxt<'tcx>, key: Self::Key) -> Self::Value {
-                let is_local = key.query_crate() == LOCAL_CRATE;
-                let provider = if is_local {
+            fn compute_fn(tcx: QueryCtxt<'tcx>, key: &Self::Key) ->
+                fn(TyCtxt<'tcx>, Self::Key) -> Self::Value
+            {
+                if key.query_crate_is_local() {
                     tcx.queries.local_providers.$name
                 } else {
                     tcx.queries.extern_providers.$name
-                };
-                provider(*tcx, key)
+                }
             }
 
             fn hash_result(
@@ -438,6 +402,11 @@ macro_rules! define_queries {
                 try_load_from_on_disk_cache: |_, _| {},
             };
 
+            pub const CompileMonoItem: QueryStruct = QueryStruct {
+                force_from_dep_node: |_, _| false,
+                try_load_from_on_disk_cache: |_, _| {},
+            };
+
             $(pub const $name: QueryStruct = {
                 const is_anon: bool = is_anon!([$($modifiers)*]);
 
@@ -452,20 +421,7 @@ macro_rules! define_queries {
                 }
 
                 fn force_from_dep_node(tcx: QueryCtxt<'_>, dep_node: &DepNode) -> bool {
-                    if is_anon {
-                        return false;
-                    }
-
-                    if !can_reconstruct_query_key() {
-                        return false;
-                    }
-
-                    if let Some(key) = recover(*tcx, dep_node) {
-                        force_query::<queries::$name<'_>, _>(tcx, key, DUMMY_SP, *dep_node);
-                        return true;
-                    }
-
-                    false
+                    force_query::<queries::$name<'_>, _>(tcx, dep_node)
                 }
 
                 fn try_load_from_on_disk_cache(tcx: QueryCtxt<'_>, dep_node: &DepNode) {
@@ -545,12 +501,10 @@ macro_rules! define_queries_struct {
         }
 
         impl QueryEngine<'tcx> for Queries<'tcx> {
-            unsafe fn deadlock(&'tcx self, _tcx: TyCtxt<'tcx>, _registry: &rustc_rayon_core::Registry) {
-                #[cfg(parallel_compiler)]
-                {
-                    let tcx = QueryCtxt { tcx: _tcx, queries: self };
-                    rustc_query_system::query::deadlock(tcx, _registry)
-                }
+            #[cfg(parallel_compiler)]
+            unsafe fn deadlock(&'tcx self, tcx: TyCtxt<'tcx>, registry: &rustc_rayon_core::Registry) {
+                let tcx = QueryCtxt { tcx, queries: self };
+                rustc_query_system::query::deadlock(tcx, registry)
             }
 
             fn encode_query_results(
diff --git a/compiler/rustc_query_impl/src/profiling_support.rs b/compiler/rustc_query_impl/src/profiling_support.rs
index 24485889731..95edc1e93a5 100644
--- a/compiler/rustc_query_impl/src/profiling_support.rs
+++ b/compiler/rustc_query_impl/src/profiling_support.rs
@@ -61,7 +61,7 @@ impl<'p, 'c, 'tcx> QueryKeyStringBuilder<'p, 'c, 'tcx> {
 
         match def_key.disambiguated_data.data {
             DefPathData::CrateRoot => {
-                crate_name = self.tcx.original_crate_name(def_id.krate).as_str();
+                crate_name = self.tcx.crate_name(def_id.krate).as_str();
                 name = &*crate_name;
                 dis = "";
                 end_index = 3;
@@ -250,8 +250,8 @@ fn alloc_self_profile_query_strings_for_query_cache<'tcx, C>(
             // need to invoke queries itself, we cannot keep the query caches
             // locked while doing so. Instead we copy out the
             // `(query_key, dep_node_index)` pairs and release the lock again.
-            let query_keys_and_indices: Vec<_> = query_cache
-                .iter_results(|results| results.map(|(k, _, i)| (k.clone(), i)).collect());
+            let mut query_keys_and_indices = Vec::new();
+            query_cache.iter_results(&mut |k, _, i| query_keys_and_indices.push((k.clone(), i)));
 
             // Now actually allocate the strings. If allocating the strings
             // generates new entries in the query cache, we'll miss them but
@@ -275,14 +275,15 @@ fn alloc_self_profile_query_strings_for_query_cache<'tcx, C>(
             let query_name = profiler.get_or_alloc_cached_string(query_name);
             let event_id = event_id_builder.from_label(query_name).to_string_id();
 
-            query_cache.iter_results(|results| {
-                let query_invocation_ids: Vec<_> = results.map(|v| v.2.into()).collect();
-
-                profiler.bulk_map_query_invocation_id_to_single_string(
-                    query_invocation_ids.into_iter(),
-                    event_id,
-                );
+            let mut query_invocation_ids = Vec::new();
+            query_cache.iter_results(&mut |_, _, i| {
+                query_invocation_ids.push(i.into());
             });
+
+            profiler.bulk_map_query_invocation_id_to_single_string(
+                query_invocation_ids.into_iter(),
+                event_id,
+            );
         }
     });
 }
diff --git a/compiler/rustc_query_impl/src/stats.rs b/compiler/rustc_query_impl/src/stats.rs
index 4d52483c3b8..e877034bd7b 100644
--- a/compiler/rustc_query_impl/src/stats.rs
+++ b/compiler/rustc_query_impl/src/stats.rs
@@ -50,13 +50,12 @@ where
         key_type: type_name::<C::Key>(),
         value_size: mem::size_of::<C::Value>(),
         value_type: type_name::<C::Value>(),
-        entry_count: map.iter_results(|results| results.count()),
+        entry_count: 0,
         local_def_id_keys: None,
     };
-    map.iter_results(|results| {
-        for (key, _, _) in results {
-            key.key_stats(&mut stats)
-        }
+    map.iter_results(&mut |key, _, _| {
+        stats.entry_count += 1;
+        key.key_stats(&mut stats)
     });
     stats
 }