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Replace FnvHasher use with FxHasher.

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This speeds up compilation by 3--6% across most of rustc-benchmarks.
This commit is contained in:
Nicholas Nethercote
2016-11-08 14:02:55 +11:00
parent eca1cc957f
commit 00e48affde
91 changed files with 588 additions and 588 deletions
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14
src/librustdoc/clean/mod.rs
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@@ -38,7 +38,7 @@ use rustc::hir::print as pprust;
use rustc::ty::subst::Substs;
use rustc::ty::{self, AdtKind};
use rustc::middle::stability;
use rustc::util::nodemap::{FnvHashMap, FnvHashSet};
use rustc::util::nodemap::{FxHashMap, FxHashSet};
use rustc::hir;
@@ -116,7 +116,7 @@ pub struct Crate {
pub access_levels: Arc<AccessLevels<DefId>>,
// These are later on moved into `CACHEKEY`, leaving the map empty.
// Only here so that they can be filtered through the rustdoc passes.
pub external_traits: FnvHashMap<DefId, Trait>,
pub external_traits: FxHashMap<DefId, Trait>,
}
struct CrateNum(def_id::CrateNum);
@@ -993,7 +993,7 @@ impl<'a, 'tcx> Clean<Generics> for (&'a ty::Generics<'tcx>,
// Note that associated types also have a sized bound by default, but we
// don't actually know the set of associated types right here so that's
// handled in cleaning associated types
let mut sized_params = FnvHashSet();
let mut sized_params = FxHashSet();
where_predicates.retain(|pred| {
match *pred {
WP::BoundPredicate { ty: Generic(ref g), ref bounds } => {
@@ -1693,8 +1693,8 @@ impl Clean<Type> for hir::Ty {
});
if let Some((tcx, &hir::ItemTy(ref ty, ref generics))) = tcx_and_alias {
let provided_params = &path.segments.last().unwrap().parameters;
let mut ty_substs = FnvHashMap();
let mut lt_substs = FnvHashMap();
let mut ty_substs = FxHashMap();
let mut lt_substs = FxHashMap();
for (i, ty_param) in generics.ty_params.iter().enumerate() {
let ty_param_def = tcx.expect_def(ty_param.id);
if let Some(ty) = provided_params.types().get(i).cloned()
@@ -2368,7 +2368,7 @@ impl Clean<ImplPolarity> for hir::ImplPolarity {
pub struct Impl {
pub unsafety: hir::Unsafety,
pub generics: Generics,
pub provided_trait_methods: FnvHashSet<String>,
pub provided_trait_methods: FxHashSet<String>,
pub trait_: Option<Type>,
pub for_: Type,
pub items: Vec<Item>,
@@ -2394,7 +2394,7 @@ impl Clean<Vec<Item>> for doctree::Impl {
.map(|meth| meth.name.to_string())
.collect()
})
}).unwrap_or(FnvHashSet());
}).unwrap_or(FxHashSet());
ret.push(Item {
name: None,