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Auto merge of #106977 - michaelwoerister:unord_id_collections, r=oli-obk

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Use UnordMap and UnordSet for id collections (DefIdMap, LocalDefIdMap, etc)

This PR changes the `rustc_data_structures::define_id_collections!` macro to use `UnordMap` and `UnordSet` instead of `FxHashMap` and `FxHashSet`. This should account for a large portion of hash-maps being used in places where they can cause trouble.

The changes required are moderate but non-zero:
- In some places the collections are extracted into sorted vecs.
- There are a few instances where for-loops have been changed to extends.

~~Let's see what the performance impact is. With a bit more refactoring, we might be able to get rid of some of the additional sorting -- but the change set is already big enough. Unless there's a performance impact, I'd like to do further changes in subsequent PRs.~~

Performance does not seem to be negatively affected ([perf-run here](https://github.com/rust-lang/rust/pull/106977#issuecomment-1396776699)).

Part of [MCP 533](https://github.com/rust-lang/compiler-team/issues/533).

r? `@ghost`
This commit is contained in:
bors 2023-01-21 14:18:17 +00:00
commit 005fc0f00f
18 changed files with 393 additions and 118 deletions
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8
compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
View File

@ -8,7 +8,7 @@
use rustc_codegen_ssa::traits::{ConstMethods, CoverageInfoMethods};
use rustc_data_structures::fx::FxIndexSet;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::DefIdSet;
use rustc_hir::def_id::DefId;
use rustc_llvm::RustString;
use rustc_middle::bug;
use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags;
@ -291,7 +291,7 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
let ignore_unused_generics = tcx.sess.instrument_coverage_except_unused_generics();
let eligible_def_ids: DefIdSet = tcx
let eligible_def_ids: Vec<DefId> = tcx
.mir_keys(())
.iter()
.filter_map(|local_def_id| {
@ -317,7 +317,9 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
let codegenned_def_ids = tcx.codegened_and_inlined_items(());
for &non_codegenned_def_id in eligible_def_ids.difference(codegenned_def_ids) {
for non_codegenned_def_id in
eligible_def_ids.into_iter().filter(|id| !codegenned_def_ids.contains(id))
{
let codegen_fn_attrs = tcx.codegen_fn_attrs(non_codegenned_def_id);
// If a function is marked `#[no_coverage]`, then skip generating a

12
compiler/rustc_codegen_ssa/src/back/symbol_export.rs
View File

@ -173,11 +173,15 @@ fn exported_symbols_provider_local(
return &[];
}
let mut symbols: Vec<_> = tcx
.reachable_non_generics(LOCAL_CRATE)
.iter()
// FIXME: Sorting this is unnecessary since we are sorting later anyway.
// Can we skip the later sorting?
let mut symbols: Vec<_> = tcx.with_stable_hashing_context(|hcx| {
tcx.reachable_non_generics(LOCAL_CRATE)
.to_sorted(&hcx, true)
.into_iter()
.map(|(&def_id, &info)| (ExportedSymbol::NonGeneric(def_id), info))
.collect();
.collect()
});
if tcx.entry_fn(()).is_some() {
let exported_symbol =

15
compiler/rustc_codegen_ssa/src/base.rs
View File

@ -964,16 +964,19 @@ pub fn provide(providers: &mut Providers) {
};
let (defids, _) = tcx.collect_and_partition_mono_items(cratenum);
for id in &*defids {
let any_for_speed = defids.items().any(|id| {
let CodegenFnAttrs { optimize, .. } = tcx.codegen_fn_attrs(*id);
match optimize {
attr::OptimizeAttr::None => continue,
attr::OptimizeAttr::Size => continue,
attr::OptimizeAttr::Speed => {
attr::OptimizeAttr::None | attr::OptimizeAttr::Size => false,
attr::OptimizeAttr::Speed => true,
}
});
if any_for_speed {
return for_speed;
}
}
}
tcx.sess.opts.optimize
};
}

4
compiler/rustc_data_structures/src/fx.rs
View File

@ -11,8 +11,8 @@
#[macro_export]
macro_rules! define_id_collections {
($map_name:ident, $set_name:ident, $entry_name:ident, $key:ty) => {
pub type $map_name<T> = $crate::fx::FxHashMap<$key, T>;
pub type $set_name = $crate::fx::FxHashSet<$key>;
pub type $map_name<T> = $crate::unord::UnordMap<$key, T>;
pub type $set_name = $crate::unord::UnordSet<$key>;
pub type $entry_name<'a, T> = $crate::fx::StdEntry<'a, $key, T>;
};
}

239
compiler/rustc_data_structures/src/unord.rs
View File

@ -6,13 +6,15 @@
use smallvec::SmallVec;
use std::{
borrow::Borrow,
collections::hash_map::Entry,
hash::Hash,
iter::{Product, Sum},
ops::Index,
};
use crate::{
fingerprint::Fingerprint,
stable_hasher::{HashStable, StableHasher, ToStableHashKey},
stable_hasher::{HashStable, StableHasher, StableOrd, ToStableHashKey},
};
/// `UnordItems` is the order-less version of `Iterator`. It only contains methods
@ -38,17 +40,17 @@ pub fn map<U, F: Fn(T) -> U>(self, f: F) -> UnordItems<U, impl Iterator<Item = U
}
#[inline]
pub fn all<U, F: Fn(T) -> bool>(mut self, f: F) -> bool {
pub fn all<F: Fn(T) -> bool>(mut self, f: F) -> bool {
self.0.all(f)
}
#[inline]
pub fn any<U, F: Fn(T) -> bool>(mut self, f: F) -> bool {
pub fn any<F: Fn(T) -> bool>(mut self, f: F) -> bool {
self.0.any(f)
}
#[inline]
pub fn filter<U, F: Fn(&T) -> bool>(self, f: F) -> UnordItems<T, impl Iterator<Item = T>> {
pub fn filter<F: Fn(&T) -> bool>(self, f: F) -> UnordItems<T, impl Iterator<Item = T>> {
UnordItems(self.0.filter(f))
}
@ -96,6 +98,15 @@ pub fn product<S>(self) -> S
pub fn count(self) -> usize {
self.0.count()
}
#[inline]
pub fn flat_map<U, F, O>(self, f: F) -> UnordItems<O, impl Iterator<Item = O>>
where
U: IntoIterator<Item = O>,
F: Fn(T) -> U,
{
UnordItems(self.0.flat_map(f))
}
}
impl<'a, T: Clone + 'a, I: Iterator<Item = &'a T>> UnordItems<&'a T, I> {
@ -147,6 +158,7 @@ pub struct UnordSet<V: Eq + Hash> {
}
impl<V: Eq + Hash> Default for UnordSet<V> {
#[inline]
fn default() -> Self {
Self { inner: FxHashSet::default() }
}
@ -178,7 +190,16 @@ pub fn contains<Q: ?Sized>(&self, v: &Q) -> bool
}
#[inline]
pub fn items(&self) -> UnordItems<&V, impl Iterator<Item = &V>> {
pub fn remove<Q: ?Sized>(&mut self, k: &Q) -> bool
where
V: Borrow<Q>,
Q: Hash + Eq,
{
self.inner.remove(k)
}
#[inline]
pub fn items<'a>(&'a self) -> UnordItems<&'a V, impl Iterator<Item = &'a V>> {
UnordItems(self.inner.iter())
}
@ -187,20 +208,75 @@ pub fn into_items(self) -> UnordItems<V, impl Iterator<Item = V>> {
UnordItems(self.inner.into_iter())
}
/// Returns the items of this set in stable sort order (as defined by `ToStableHashKey`).
///
/// The `cache_sort_key` parameter controls if [slice::sort_by_cached_key] or
/// [slice::sort_unstable_by_key] will be used for sorting the vec. Use
/// `cache_sort_key` when the [ToStableHashKey::to_stable_hash_key] implementation
/// for `V` is expensive (e.g. a `DefId -> DefPathHash` lookup).
#[inline]
pub fn to_sorted<HCX>(&self, hcx: &HCX, cache_sort_key: bool) -> Vec<&V>
where
V: ToStableHashKey<HCX>,
{
to_sorted_vec(hcx, self.inner.iter(), cache_sort_key, |&x| x)
}
/// Returns the items of this set in stable sort order (as defined by
/// `StableOrd`). This method is much more efficient than
/// `into_sorted` because it does not need to transform keys to their
/// `ToStableHashKey` equivalent.
#[inline]
pub fn to_sorted_stable_ord(&self) -> Vec<V>
where
V: Ord + StableOrd + Copy,
{
let mut items: Vec<V> = self.inner.iter().copied().collect();
items.sort_unstable();
items
}
/// Returns the items of this set in stable sort order (as defined by `ToStableHashKey`).
///
/// The `cache_sort_key` parameter controls if [slice::sort_by_cached_key] or
/// [slice::sort_unstable_by_key] will be used for sorting the vec. Use
/// `cache_sort_key` when the [ToStableHashKey::to_stable_hash_key] implementation
/// for `V` is expensive (e.g. a `DefId -> DefPathHash` lookup).
#[inline]
pub fn into_sorted<HCX>(self, hcx: &HCX, cache_sort_key: bool) -> Vec<V>
where
V: ToStableHashKey<HCX>,
{
to_sorted_vec(hcx, self.inner.into_iter(), cache_sort_key, |x| x)
}
// We can safely extend this UnordSet from a set of unordered values because that
// won't expose the internal ordering anywhere.
#[inline]
pub fn extend<I: Iterator<Item = V>>(&mut self, items: UnordItems<V, I>) {
self.inner.extend(items.0)
}
#[inline]
pub fn clear(&mut self) {
self.inner.clear();
}
}
impl<V: Hash + Eq> Extend<V> for UnordSet<V> {
#[inline]
fn extend<T: IntoIterator<Item = V>>(&mut self, iter: T) {
self.inner.extend(iter)
}
}
impl<V: Hash + Eq> FromIterator<V> for UnordSet<V> {
#[inline]
fn from_iter<T: IntoIterator<Item = V>>(iter: T) -> Self {
UnordSet { inner: FxHashSet::from_iter(iter) }
}
}
impl<HCX, V: Hash + Eq + HashStable<HCX>> HashStable<HCX> for UnordSet<V> {
#[inline]
fn hash_stable(&self, hcx: &mut HCX, hasher: &mut StableHasher) {
@ -223,17 +299,33 @@ pub struct UnordMap<K: Eq + Hash, V> {
}
impl<K: Eq + Hash, V> Default for UnordMap<K, V> {
#[inline]
fn default() -> Self {
Self { inner: FxHashMap::default() }
}
}
impl<K: Hash + Eq, V> Extend<(K, V)> for UnordMap<K, V> {
#[inline]
fn extend<T: IntoIterator<Item = (K, V)>>(&mut self, iter: T) {
self.inner.extend(iter)
}
}
impl<K: Hash + Eq, V> FromIterator<(K, V)> for UnordMap<K, V> {
#[inline]
fn from_iter<T: IntoIterator<Item = (K, V)>>(iter: T) -> Self {
UnordMap { inner: FxHashMap::from_iter(iter) }
}
}
impl<K: Hash + Eq, V, I: Iterator<Item = (K, V)>> From<UnordItems<(K, V), I>> for UnordMap<K, V> {
#[inline]
fn from(items: UnordItems<(K, V), I>) -> Self {
UnordMap { inner: FxHashMap::from_iter(items.0) }
}
}
impl<K: Eq + Hash, V> UnordMap<K, V> {
#[inline]
pub fn len(&self) -> usize {
@ -255,7 +347,44 @@ pub fn contains_key<Q: ?Sized>(&self, k: &Q) -> bool
}
#[inline]
pub fn items(&self) -> UnordItems<(&K, &V), impl Iterator<Item = (&K, &V)>> {
pub fn is_empty(&self) -> bool {
self.inner.is_empty()
}
#[inline]
pub fn entry(&mut self, key: K) -> Entry<'_, K, V> {
self.inner.entry(key)
}
#[inline]
pub fn get<Q: ?Sized>(&self, k: &Q) -> Option<&V>
where
K: Borrow<Q>,
Q: Hash + Eq,
{
self.inner.get(k)
}
#[inline]
pub fn get_mut<Q: ?Sized>(&mut self, k: &Q) -> Option<&mut V>
where
K: Borrow<Q>,
Q: Hash + Eq,
{
self.inner.get_mut(k)
}
#[inline]
pub fn remove<Q: ?Sized>(&mut self, k: &Q) -> Option<V>
where
K: Borrow<Q>,
Q: Hash + Eq,
{
self.inner.remove(k)
}
#[inline]
pub fn items<'a>(&'a self) -> UnordItems<(&'a K, &'a V), impl Iterator<Item = (&'a K, &'a V)>> {
UnordItems(self.inner.iter())
}
@ -270,6 +399,77 @@ pub fn into_items(self) -> UnordItems<(K, V), impl Iterator<Item = (K, V)>> {
pub fn extend<I: Iterator<Item = (K, V)>>(&mut self, items: UnordItems<(K, V), I>) {
self.inner.extend(items.0)
}
/// Returns the entries of this map in stable sort order (as defined by `ToStableHashKey`).
///
/// The `cache_sort_key` parameter controls if [slice::sort_by_cached_key] or
/// [slice::sort_unstable_by_key] will be used for sorting the vec. Use
/// `cache_sort_key` when the [ToStableHashKey::to_stable_hash_key] implementation
/// for `K` is expensive (e.g. a `DefId -> DefPathHash` lookup).
#[inline]
pub fn to_sorted<HCX>(&self, hcx: &HCX, cache_sort_key: bool) -> Vec<(&K, &V)>
where
K: ToStableHashKey<HCX>,
{
to_sorted_vec(hcx, self.inner.iter(), cache_sort_key, |&(k, _)| k)
}
/// Returns the entries of this map in stable sort order (as defined by `StableOrd`).
/// This method can be much more efficient than `into_sorted` because it does not need
/// to transform keys to their `ToStableHashKey` equivalent.
#[inline]
pub fn to_sorted_stable_ord(&self) -> Vec<(K, &V)>
where
K: Ord + StableOrd + Copy,
{
let mut items: Vec<(K, &V)> = self.inner.iter().map(|(&k, v)| (k, v)).collect();
items.sort_unstable_by_key(|&(k, _)| k);
items
}
/// Returns the entries of this map in stable sort order (as defined by `ToStableHashKey`).
///
/// The `cache_sort_key` parameter controls if [slice::sort_by_cached_key] or
/// [slice::sort_unstable_by_key] will be used for sorting the vec. Use
/// `cache_sort_key` when the [ToStableHashKey::to_stable_hash_key] implementation
/// for `K` is expensive (e.g. a `DefId -> DefPathHash` lookup).
#[inline]
pub fn into_sorted<HCX>(self, hcx: &HCX, cache_sort_key: bool) -> Vec<(K, V)>
where
K: ToStableHashKey<HCX>,
{
to_sorted_vec(hcx, self.inner.into_iter(), cache_sort_key, |(k, _)| k)
}
/// Returns the values of this map in stable sort order (as defined by K's
/// `ToStableHashKey` implementation).
///
/// The `cache_sort_key` parameter controls if [slice::sort_by_cached_key] or
/// [slice::sort_unstable_by_key] will be used for sorting the vec. Use
/// `cache_sort_key` when the [ToStableHashKey::to_stable_hash_key] implementation
/// for `K` is expensive (e.g. a `DefId -> DefPathHash` lookup).
#[inline]
pub fn values_sorted<HCX>(&self, hcx: &HCX, cache_sort_key: bool) -> impl Iterator<Item = &V>
where
K: ToStableHashKey<HCX>,
{
to_sorted_vec(hcx, self.inner.iter(), cache_sort_key, |&(k, _)| k)
.into_iter()
.map(|(_, v)| v)
}
}
impl<K, Q: ?Sized, V> Index<&Q> for UnordMap<K, V>
where
K: Eq + Hash + Borrow<Q>,
Q: Eq + Hash,
{
type Output = V;
#[inline]
fn index(&self, key: &Q) -> &V {
&self.inner[key]
}
}
impl<HCX, K: Hash + Eq + HashStable<HCX>, V: HashStable<HCX>> HashStable<HCX> for UnordMap<K, V> {
@ -334,6 +534,12 @@ fn extend<I: IntoIterator<Item = T>>(&mut self, iter: I) {
}
}
impl<T, I: Iterator<Item = T>> From<UnordItems<T, I>> for UnordBag<T> {
fn from(value: UnordItems<T, I>) -> Self {
UnordBag { inner: Vec::from_iter(value.0) }
}
}
impl<HCX, V: Hash + Eq + HashStable<HCX>> HashStable<HCX> for UnordBag<V> {
#[inline]
fn hash_stable(&self, hcx: &mut HCX, hasher: &mut StableHasher) {
@ -341,6 +547,27 @@ fn hash_stable(&self, hcx: &mut HCX, hasher: &mut StableHasher) {
}
}
#[inline]
fn to_sorted_vec<HCX, T, K, I>(
hcx: &HCX,
iter: I,
cache_sort_key: bool,
extract_key: fn(&T) -> &K,
) -> Vec<T>
where
I: Iterator<Item = T>,
K: ToStableHashKey<HCX>,
{
let mut items: Vec<T> = iter.collect();
if cache_sort_key {
items.sort_by_cached_key(|x| extract_key(x).to_stable_hash_key(hcx));
} else {
items.sort_unstable_by_key(|x| extract_key(x).to_stable_hash_key(hcx));
}
items
}
fn hash_iter_order_independent<
HCX,
T: HashStable<HCX>,

15
compiler/rustc_hir_analysis/src/variance/solve.rs
View File

@ -5,8 +5,7 @@
//! optimal solution to the constraints. The final variance for each
//! inferred is then written into the `variance_map` in the tcx.
use rustc_data_structures::fx::FxHashMap;
use rustc_hir::def_id::DefId;
use rustc_hir::def_id::DefIdMap;
use rustc_middle::ty;
use super::constraints::*;
@ -89,14 +88,12 @@ fn enforce_const_invariance(&self, generics: &ty::Generics, variances: &mut [ty:
}
}
fn create_map(&self) -> FxHashMap<DefId, &'tcx [ty::Variance]> {
fn create_map(&self) -> DefIdMap<&'tcx [ty::Variance]> {
let tcx = self.terms_cx.tcx;
let solutions = &self.solutions;
self.terms_cx
.inferred_starts
.iter()
.map(|(&def_id, &InferredIndex(start))| {
DefIdMap::from(self.terms_cx.inferred_starts.items().map(
|(&def_id, &InferredIndex(start))| {
let generics = tcx.generics_of(def_id);
let count = generics.count();
@ -115,8 +112,8 @@ fn create_map(&self) -> FxHashMap<DefId, &'tcx [ty::Variance]> {
}
(def_id.to_def_id(), &*variances)
})
.collect()
},
))
}
fn evaluate(&self, term: VarianceTermPtr<'a>) -> ty::Variance {

63
compiler/rustc_hir_typeck/src/writeback.rs
View File

@ -448,8 +448,11 @@ fn visit_closures(&mut self) {
assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner);
let common_hir_owner = fcx_typeck_results.hir_owner;
for (id, origin) in fcx_typeck_results.closure_kind_origins().iter() {
let hir_id = hir::HirId { owner: common_hir_owner, local_id: *id };
let fcx_closure_kind_origins =
fcx_typeck_results.closure_kind_origins().items_in_stable_order();
for (local_id, origin) in fcx_closure_kind_origins {
let hir_id = hir::HirId { owner: common_hir_owner, local_id };
let place_span = origin.0;
let place = self.resolve(origin.1.clone(), &place_span);
self.typeck_results.closure_kind_origins_mut().insert(hir_id, (place_span, place));
@ -458,11 +461,12 @@ fn visit_closures(&mut self) {
fn visit_coercion_casts(&mut self) {
let fcx_typeck_results = self.fcx.typeck_results.borrow();
let fcx_coercion_casts = fcx_typeck_results.coercion_casts();
assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner);
let fcx_coercion_casts = fcx_typeck_results.coercion_casts().to_sorted_stable_ord();
for local_id in fcx_coercion_casts {
self.typeck_results.set_coercion_cast(*local_id);
self.typeck_results.set_coercion_cast(local_id);
}
}
@ -471,22 +475,15 @@ fn visit_user_provided_tys(&mut self) {
assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner);
let common_hir_owner = fcx_typeck_results.hir_owner;
if self.rustc_dump_user_substs {
let sorted_user_provided_types =
fcx_typeck_results.user_provided_types().items_in_stable_order();
let mut errors_buffer = Vec::new();
for (&local_id, c_ty) in fcx_typeck_results.user_provided_types().iter() {
for (local_id, c_ty) in sorted_user_provided_types {
let hir_id = hir::HirId { owner: common_hir_owner, local_id };
if cfg!(debug_assertions) && c_ty.needs_infer() {
span_bug!(
hir_id.to_span(self.fcx.tcx),
"writeback: `{:?}` has inference variables",
c_ty
);
};
self.typeck_results.user_provided_types_mut().insert(hir_id, *c_ty);
if let ty::UserType::TypeOf(_, user_substs) = c_ty.value {
if self.rustc_dump_user_substs {
// This is a unit-testing mechanism.
let span = self.tcx().hir().span(hir_id);
// We need to buffer the errors in order to guarantee a consistent
@ -498,7 +495,6 @@ fn visit_user_provided_tys(&mut self) {
err.buffer(&mut errors_buffer);
}
}
}
if !errors_buffer.is_empty() {
errors_buffer.sort_by_key(|diag| diag.span.primary_span());
@ -508,11 +504,29 @@ fn visit_user_provided_tys(&mut self) {
}
}
self.typeck_results.user_provided_types_mut().extend(
fcx_typeck_results.user_provided_types().items().map(|(local_id, c_ty)| {
let hir_id = hir::HirId { owner: common_hir_owner, local_id };
if cfg!(debug_assertions) && c_ty.needs_infer() {
span_bug!(
hir_id.to_span(self.fcx.tcx),
"writeback: `{:?}` has inference variables",
c_ty
);
};
(hir_id, *c_ty)
}),
);
}
fn visit_user_provided_sigs(&mut self) {
let fcx_typeck_results = self.fcx.typeck_results.borrow();
assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner);
for (&def_id, c_sig) in fcx_typeck_results.user_provided_sigs.iter() {
self.typeck_results.user_provided_sigs.extend(
fcx_typeck_results.user_provided_sigs.items().map(|(&def_id, c_sig)| {
if cfg!(debug_assertions) && c_sig.needs_infer() {
span_bug!(
self.fcx.tcx.def_span(def_id),
@ -521,8 +535,9 @@ fn visit_user_provided_sigs(&mut self) {
);
};
self.typeck_results.user_provided_sigs.insert(def_id, *c_sig);
}
(def_id, *c_sig)
}),
);
}
fn visit_generator_interior_types(&mut self) {
@ -641,7 +656,9 @@ fn visit_liberated_fn_sigs(&mut self) {
assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner);
let common_hir_owner = fcx_typeck_results.hir_owner;
for (&local_id, &fn_sig) in fcx_typeck_results.liberated_fn_sigs().iter() {
let fcx_liberated_fn_sigs = fcx_typeck_results.liberated_fn_sigs().items_in_stable_order();
for (local_id, &fn_sig) in fcx_liberated_fn_sigs {
let hir_id = hir::HirId { owner: common_hir_owner, local_id };
let fn_sig = self.resolve(fn_sig, &hir_id);
self.typeck_results.liberated_fn_sigs_mut().insert(hir_id, fn_sig);
@ -653,7 +670,9 @@ fn visit_fru_field_types(&mut self) {
assert_eq!(fcx_typeck_results.hir_owner, self.typeck_results.hir_owner);
let common_hir_owner = fcx_typeck_results.hir_owner;
for (&local_id, ftys) in fcx_typeck_results.fru_field_types().iter() {
let fcx_fru_field_types = fcx_typeck_results.fru_field_types().items_in_stable_order();
for (local_id, ftys) in fcx_fru_field_types {
let hir_id = hir::HirId { owner: common_hir_owner, local_id };
let ftys = self.resolve(ftys.clone(), &hir_id);
self.typeck_results.fru_field_types_mut().insert(hir_id, ftys);

5
compiler/rustc_lint_defs/src/lib.rs
View File

@ -6,8 +6,9 @@
extern crate rustc_macros;
pub use self::Level::*;
use rustc_ast::node_id::{NodeId, NodeMap};
use rustc_ast::node_id::NodeId;
use rustc_ast::{AttrId, Attribute};
use rustc_data_structures::fx::FxIndexMap;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher, ToStableHashKey};
use rustc_error_messages::{DiagnosticMessage, MultiSpan};
use rustc_hir::HashStableContext;
@ -544,7 +545,7 @@ pub struct BufferedEarlyLint {
#[derive(Default)]
pub struct LintBuffer {
pub map: NodeMap<Vec<BufferedEarlyLint>>,
pub map: FxIndexMap<NodeId, Vec<BufferedEarlyLint>>,
}
impl LintBuffer {

7
compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs
View File

@ -391,7 +391,7 @@ pub(in crate::rmeta) fn provide(providers: &mut Providers) {
// keys from the former.
// This is a rudimentary check that does not catch all cases,
// just the easiest.
let mut fallback_map: DefIdMap<DefId> = Default::default();
let mut fallback_map: Vec<(DefId, DefId)> = Default::default();
// Issue 46112: We want the map to prefer the shortest
// paths when reporting the path to an item. Therefore we
@ -421,12 +421,12 @@ pub(in crate::rmeta) fn provide(providers: &mut Providers) {
if let Some(def_id) = child.res.opt_def_id() {
if child.ident.name == kw::Underscore {
fallback_map.insert(def_id, parent);
fallback_map.push((def_id, parent));
return;
}
if ty::util::is_doc_hidden(tcx, parent) {
fallback_map.insert(def_id, parent);
fallback_map.push((def_id, parent));
return;
}
@ -460,6 +460,7 @@ pub(in crate::rmeta) fn provide(providers: &mut Providers) {
// Fill in any missing entries with the less preferable path.
// If this path re-exports the child as `_`, we still use this
// path in a diagnostic that suggests importing `::*`.
for (child, parent) in fallback_map {
visible_parent_map.entry(child).or_insert(parent);
}

7
compiler/rustc_metadata/src/rmeta/encoder.rs
View File

@ -1187,8 +1187,11 @@ fn encode_def_ids(&mut self) {
record!(self.tables.trait_impl_trait_tys[def_id] <- table);
}
}
let inherent_impls = tcx.crate_inherent_impls(());
for (def_id, implementations) in inherent_impls.inherent_impls.iter() {
let inherent_impls = tcx.with_stable_hashing_context(|hcx| {
tcx.crate_inherent_impls(()).inherent_impls.to_sorted(&hcx, true)
});
for (def_id, implementations) in inherent_impls {
if implementations.is_empty() {
continue;
}

4
compiler/rustc_middle/src/ty/mod.rs
View File

@ -38,7 +38,7 @@
use rustc_data_structures::tagged_ptr::CopyTaggedPtr;
use rustc_hir as hir;
use rustc_hir::def::{CtorKind, CtorOf, DefKind, LifetimeRes, Res};
use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LocalDefIdMap};
use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LocalDefId, LocalDefIdMap};
use rustc_hir::Node;
use rustc_index::vec::IndexVec;
use rustc_macros::HashStable;
@ -436,7 +436,7 @@ pub struct CrateVariancesMap<'tcx> {
/// For each item with generics, maps to a vector of the variance
/// of its generics. If an item has no generics, it will have no
/// entry.
pub variances: FxHashMap<DefId, &'tcx [ty::Variance]>,
pub variances: DefIdMap<&'tcx [ty::Variance]>,
}
// Contains information needed to resolve types and (in the future) look up

34
compiler/rustc_middle/src/ty/typeck_results.rs
View File

@ -6,7 +6,12 @@
GenericArgKind, InternalSubsts, SubstsRef, Ty, UserSubsts,
},
};
use rustc_data_structures::{fx::FxHashMap, sync::Lrc, unord::UnordSet, vec_map::VecMap};
use rustc_data_structures::{
fx::FxHashMap,
sync::Lrc,
unord::{UnordItems, UnordSet},
vec_map::VecMap,
};
use rustc_errors::ErrorGuaranteed;
use rustc_hir as hir;
use rustc_hir::{
@ -20,11 +25,7 @@
use rustc_middle::mir::FakeReadCause;
use rustc_session::Session;
use rustc_span::Span;
use std::{
collections::hash_map::{self, Entry},
hash::Hash,
iter,
};
use std::{collections::hash_map::Entry, hash::Hash, iter};
use super::RvalueScopes;
@ -567,8 +568,15 @@ pub fn get(&self, id: hir::HirId) -> Option<&V> {
self.data.get(&id.local_id)
}
pub fn iter(&self) -> hash_map::Iter<'_, hir::ItemLocalId, V> {
self.data.iter()
pub fn items(
&'a self,
) -> UnordItems<(hir::ItemLocalId, &'a V), impl Iterator<Item = (hir::ItemLocalId, &'a V)>>
{
self.data.items().map(|(id, value)| (*id, value))
}
pub fn items_in_stable_order(&self) -> Vec<(ItemLocalId, &'a V)> {
self.data.to_sorted_stable_ord()
}
}
@ -605,6 +613,16 @@ pub fn remove(&mut self, id: hir::HirId) -> Option<V> {
validate_hir_id_for_typeck_results(self.hir_owner, id);
self.data.remove(&id.local_id)
}
pub fn extend(
&mut self,
items: UnordItems<(hir::HirId, V), impl Iterator<Item = (hir::HirId, V)>>,
) {
self.data.extend(items.map(|(id, value)| {
validate_hir_id_for_typeck_results(self.hir_owner, id);
(id.local_id, value)
}))
}
}
rustc_index::newtype_index! {

10
compiler/rustc_resolve/src/check_unused.rs
View File

@ -28,9 +28,9 @@
use crate::Resolver;
use rustc_ast as ast;
use rustc_ast::node_id::NodeMap;
use rustc_ast::visit::{self, Visitor};
use rustc_data_structures::fx::FxHashSet;
use rustc_data_structures::fx::FxIndexMap;
use rustc_data_structures::unord::UnordSet;
use rustc_errors::{pluralize, MultiSpan};
use rustc_session::lint::builtin::{MACRO_USE_EXTERN_CRATE, UNUSED_IMPORTS};
use rustc_session::lint::BuiltinLintDiagnostics;
@ -40,7 +40,7 @@ struct UnusedImport<'a> {
use_tree: &'a ast::UseTree,
use_tree_id: ast::NodeId,
item_span: Span,
unused: FxHashSet<ast::NodeId>,
unused: UnordSet<ast::NodeId>,
}
impl<'a> UnusedImport<'a> {
@ -52,7 +52,7 @@ fn add(&mut self, id: ast::NodeId) {
struct UnusedImportCheckVisitor<'a, 'b> {
r: &'a mut Resolver<'b>,
/// All the (so far) unused imports, grouped path list
unused_imports: NodeMap<UnusedImport<'a>>,
unused_imports: FxIndexMap<ast::NodeId, UnusedImport<'a>>,
base_use_tree: Option<&'a ast::UseTree>,
base_id: ast::NodeId,
item_span: Span,
@ -89,7 +89,7 @@ fn unused_import(&mut self, id: ast::NodeId) -> &mut UnusedImport<'a> {
use_tree,
use_tree_id,
item_span,
unused: FxHashSet::default(),
unused: Default::default(),
})
}
}

12
src/tools/clippy/clippy_lints/src/inherent_impl.rs
View File

@ -52,12 +52,11 @@ fn check_crate_post(&mut self, cx: &LateContext<'tcx>) {
// List of spans to lint. (lint_span, first_span)
let mut lint_spans = Vec::new();
for (_, impl_ids) in cx
let inherent_impls = cx
.tcx
.crate_inherent_impls(())
.inherent_impls
.iter()
.filter(|(&id, impls)| {
.with_stable_hashing_context(|hcx| cx.tcx.crate_inherent_impls(()).inherent_impls.to_sorted(&hcx, true));
for (_, impl_ids) in inherent_impls.into_iter().filter(|(&id, impls)| {
impls.len() > 1
// Check for `#[allow]` on the type definition
&& !is_lint_allowed(
@ -65,8 +64,7 @@ fn check_crate_post(&mut self, cx: &LateContext<'tcx>) {
MULTIPLE_INHERENT_IMPL,
cx.tcx.hir().local_def_id_to_hir_id(id),
)
})
{
}) {
for impl_id in impl_ids.iter().map(|id| id.expect_local()) {
match type_map.entry(cx.tcx.type_of(impl_id)) {
Entry::Vacant(e) => {

2
src/tools/clippy/clippy_lints/src/len_zero.rs
View File

@ -219,7 +219,7 @@ fn fill_trait_set(traitt: DefId, set: &mut DefIdSet, cx: &LateContext<'_>) {
let is_empty = sym!(is_empty);
let is_empty_method_found = current_and_super_traits
.iter()
.items()
.flat_map(|&i| cx.tcx.associated_items(i).filter_by_name_unhygienic(is_empty))
.any(|i| {
i.kind == ty::AssocKind::Fn

2
src/tools/clippy/clippy_lints/src/loops/while_immutable_condition.rs
View File

@ -35,7 +35,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, cond: &'tcx Expr<'_>, expr: &'
} else {
return;
};
let mutable_static_in_cond = var_visitor.def_ids.iter().any(|(_, v)| *v);
let mutable_static_in_cond = var_visitor.def_ids.items().any(|(_, v)| *v);
let mut has_break_or_return_visitor = HasBreakOrReturnVisitor {
has_break_or_return: false,

4
src/tools/clippy/clippy_lints/src/missing_trait_methods.rs
View File

@ -80,7 +80,8 @@ fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'tcx>) {
}
}
for assoc in provided.values() {
cx.tcx.with_stable_hashing_context(|hcx| {
for assoc in provided.values_sorted(&hcx, true) {
let source_map = cx.tcx.sess.source_map();
let definition_span = source_map.guess_head_span(cx.tcx.def_span(assoc.def_id));
@ -93,6 +94,7 @@ fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'tcx>) {
"implement the method",
);
}
})
}
}
}

4
src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs
View File

@ -190,10 +190,10 @@ fn check_poly_fn(&mut self, cx: &LateContext<'tcx>, def_id: LocalDefId, decl: &F
// Don't lint if an unsafe pointer is created.
// TODO: Limit the check only to unsafe pointers to the argument (or part of the argument)
// which escape the current function.
if typeck.node_types().iter().any(|(_, &ty)| ty.is_unsafe_ptr())
if typeck.node_types().items().any(|(_, &ty)| ty.is_unsafe_ptr())
|| typeck
.adjustments()
.iter()
.items()
.flat_map(|(_, a)| a)
.any(|a| matches!(a.kind, Adjust::Pointer(PointerCast::UnsafeFnPointer)))
{