Remove unused ProfileCategory.

Author: cjgillot

compiler/rustc_data_structures/src/profiling.rs

@@ -111,17 +111,6 @@ cfg_if! {
 
 type Profiler = measureme::Profiler<SerializationSink>;
 
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Ord, PartialOrd)]
-pub enum ProfileCategory {
-    Parsing,
-    Expansion,
-    TypeChecking,
-    BorrowChecking,
-    Codegen,
-    Linking,
-    Other,
-}
-
 bitflags::bitflags! {
     struct EventFilter: u32 {
         const GENERIC_ACTIVITIES = 1 << 0;

compiler/rustc_middle/src/ty/query/mod.rs

@@ -34,7 +34,6 @@ use crate::ty::util::AlwaysRequiresDrop;
 use crate::ty::{self, AdtSizedConstraint, CrateInherentImpls, ParamEnvAnd, Ty, TyCtxt};
 use rustc_data_structures::fingerprint::Fingerprint;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap};
-use rustc_data_structures::profiling::ProfileCategory::*;
 use rustc_data_structures::stable_hasher::StableVec;
 use rustc_data_structures::svh::Svh;
 use rustc_data_structures::sync::Lrc;

compiler/rustc_middle/src/ty/query/plumbing.rs

@@ -268,7 +268,6 @@ macro_rules! define_queries_inner {
             rustc_data_structures::stable_hasher::StableHasher,
             ich::StableHashingContext
         };
-        use rustc_data_structures::profiling::ProfileCategory;
 
         define_queries_struct! {
             tcx: $tcx,
@@ -362,7 +361,6 @@ macro_rules! define_queries_inner {
                 as QueryStorage
             >::Stored;
             const NAME: &'static str = stringify!($name);
-            const CATEGORY: ProfileCategory = $category;
         }
 
         impl<$tcx> QueryAccessors<TyCtxt<$tcx>> for queries::$name<$tcx> {

compiler/rustc_query_system/src/query/config.rs

@@ -5,7 +5,6 @@ use crate::dep_graph::SerializedDepNodeIndex;
 use crate::query::caches::QueryCache;
 use crate::query::plumbing::CycleError;
 use crate::query::{QueryContext, QueryState};
-use rustc_data_structures::profiling::ProfileCategory;
 
 use rustc_data_structures::fingerprint::Fingerprint;
 use std::borrow::Cow;
@@ -14,7 +13,6 @@ use std::hash::Hash;
 
 pub trait QueryConfig {
     const NAME: &'static str;
-    const CATEGORY: ProfileCategory;
 
     type Key: Eq + Hash + Clone + Debug;
     type Value;