Merge from rustc

6 files changed, 9 insertions, 10 deletions

diff --git a/compiler/rustc_data_structures/src/fx.rs b/compiler/rustc_data_structures/src/fx.rs
index 9fce0e1e65c..80e72250470 100644
--- a/compiler/rustc_data_structures/src/fx.rs
+++ b/compiler/rustc_data_structures/src/fx.rs
@@ -7,6 +7,7 @@ pub type StdEntry<'a, K, V> = std::collections::hash_map::Entry<'a, K, V>;
 pub type FxIndexMap<K, V> = indexmap::IndexMap<K, V, BuildHasherDefault<FxHasher>>;
 pub type FxIndexSet<V> = indexmap::IndexSet<V, BuildHasherDefault<FxHasher>>;
 pub type IndexEntry<'a, K, V> = indexmap::map::Entry<'a, K, V>;
+pub type IndexOccupiedEntry<'a, K, V> = indexmap::map::OccupiedEntry<'a, K, V>;
 
 #[macro_export]
 macro_rules! define_id_collections {
diff --git a/compiler/rustc_data_structures/src/graph/dominators/mod.rs b/compiler/rustc_data_structures/src/graph/dominators/mod.rs
index 4b819e1cbd6..a45f1dd72a1 100644
--- a/compiler/rustc_data_structures/src/graph/dominators/mod.rs
+++ b/compiler/rustc_data_structures/src/graph/dominators/mod.rs
@@ -394,6 +394,7 @@ impl<Node: Idx> Dominators<Node> {
     /// # Panics
     ///
     /// Panics if `b` is unreachable.
+    #[inline]
     pub fn dominates(&self, a: Node, b: Node) -> bool {
         match &self.kind {
             Kind::Path => a.index() <= b.index(),
diff --git a/compiler/rustc_data_structures/src/sorted_map.rs b/compiler/rustc_data_structures/src/sorted_map.rs
index ed2e558bffa..1436628139f 100644
--- a/compiler/rustc_data_structures/src/sorted_map.rs
+++ b/compiler/rustc_data_structures/src/sorted_map.rs
@@ -16,7 +16,7 @@ pub use index_map::SortedIndexMultiMap;
 /// stores data in a more compact way. It also supports accessing contiguous
 /// ranges of elements as a slice, and slices of already sorted elements can be
 /// inserted efficiently.
-#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable, Decodable)]
+#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Encodable_Generic, Decodable_Generic)]
 pub struct SortedMap<K, V> {
     data: Vec<(K, V)>,
 }
diff --git a/compiler/rustc_data_structures/src/svh.rs b/compiler/rustc_data_structures/src/svh.rs
index 71679086f16..1cfc9fecd47 100644
--- a/compiler/rustc_data_structures/src/svh.rs
+++ b/compiler/rustc_data_structures/src/svh.rs
@@ -10,7 +10,7 @@ use std::fmt;
 
 use crate::stable_hasher;
 
-#[derive(Copy, Clone, PartialEq, Eq, Debug, Encodable, Decodable, Hash)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Encodable_Generic, Decodable_Generic, Hash)]
 pub struct Svh {
     hash: Fingerprint,
 }
diff --git a/compiler/rustc_data_structures/src/sync.rs b/compiler/rustc_data_structures/src/sync.rs
index 43221d70e21..48edfba8da0 100644
--- a/compiler/rustc_data_structures/src/sync.rs
+++ b/compiler/rustc_data_structures/src/sync.rs
@@ -56,9 +56,6 @@ mod parallel;
 pub use parallel::scope;
 pub use parallel::{join, par_for_each_in, par_map, parallel_guard, try_par_for_each_in};
 
-pub use std::sync::atomic::Ordering;
-pub use std::sync::atomic::Ordering::SeqCst;
-
 pub use vec::{AppendOnlyIndexVec, AppendOnlyVec};
 
 mod vec;
@@ -67,8 +64,7 @@ mod freeze;
 pub use freeze::{FreezeLock, FreezeReadGuard, FreezeWriteGuard};
 
 mod mode {
-    use super::Ordering;
-    use std::sync::atomic::AtomicU8;
+    use std::sync::atomic::{AtomicU8, Ordering};
 
     const UNINITIALIZED: u8 = 0;
     const DYN_NOT_THREAD_SAFE: u8 = 1;
@@ -113,6 +109,7 @@ cfg_match! {
     cfg(not(parallel_compiler)) => {
         use std::ops::Add;
         use std::cell::Cell;
+        use std::sync::atomic::Ordering;
 
         pub unsafe auto trait Send {}
         pub unsafe auto trait Sync {}
diff --git a/compiler/rustc_data_structures/src/unord.rs b/compiler/rustc_data_structures/src/unord.rs
index bd4dff6f62f..907c866b3ed 100644
--- a/compiler/rustc_data_structures/src/unord.rs
+++ b/compiler/rustc_data_structures/src/unord.rs
@@ -226,7 +226,7 @@ trait UnordCollection {}
 ///
 /// See [MCP 533](https://github.com/rust-lang/compiler-team/issues/533)
 /// for more information.
-#[derive(Debug, Eq, PartialEq, Clone, Encodable, Decodable)]
+#[derive(Debug, Eq, PartialEq, Clone, Encodable_Generic, Decodable_Generic)]
 pub struct UnordSet<V: Eq + Hash> {
     inner: FxHashSet<V>,
 }
@@ -417,7 +417,7 @@ impl<HCX, V: Hash + Eq + HashStable<HCX>> HashStable<HCX> for UnordSet<V> {
 ///
 /// See [MCP 533](https://github.com/rust-lang/compiler-team/issues/533)
 /// for more information.
-#[derive(Debug, Eq, PartialEq, Clone, Encodable, Decodable)]
+#[derive(Debug, Eq, PartialEq, Clone, Encodable_Generic, Decodable_Generic)]
 pub struct UnordMap<K: Eq + Hash, V> {
     inner: FxHashMap<K, V>,
 }
@@ -626,7 +626,7 @@ impl<HCX, K: Hash + Eq + HashStable<HCX>, V: HashStable<HCX>> HashStable<HCX> fo
 ///
 /// See [MCP 533](https://github.com/rust-lang/compiler-team/issues/533)
 /// for more information.
-#[derive(Default, Debug, Eq, PartialEq, Clone, Encodable, Decodable)]
+#[derive(Default, Debug, Eq, PartialEq, Clone, Encodable_Generic, Decodable_Generic)]
 pub struct UnordBag<V> {
     inner: Vec<V>,
 }