Remove `-Zperf-stats`.

The included measurements have varied over the years. At one point there
were quite a few more, but #49558 deleted a lot that were no longer
used. Today there's just four, and it's a motley collection that doesn't
seem particularly valuable.

I think it has been well and truly subsumed by self-profiling, which
collects way more data.

2 files changed, 0 insertions, 9 deletions

diff --git a/compiler/rustc_traits/src/normalize_erasing_regions.rs b/compiler/rustc_traits/src/normalize_erasing_regions.rs
index 2563e3ed1a3..cb2a36cb998 100644
--- a/compiler/rustc_traits/src/normalize_erasing_regions.rs
+++ b/compiler/rustc_traits/src/normalize_erasing_regions.rs
@@ -4,18 +4,12 @@ use rustc_middle::traits::query::NoSolution;
 use rustc_middle::ty::{self, ParamEnvAnd, TyCtxt, TypeFoldable, TypeVisitableExt};
 use rustc_trait_selection::traits::query::normalize::QueryNormalizeExt;
 use rustc_trait_selection::traits::{Normalized, ObligationCause};
-use std::sync::atomic::Ordering;
 
 pub(crate) fn provide(p: &mut Providers) {
     *p = Providers {
         try_normalize_generic_arg_after_erasing_regions: |tcx, goal| {
             debug!("try_normalize_generic_arg_after_erasing_regions(goal={:#?}", goal);
 
-            tcx.sess
-                .perf_stats
-                .normalize_generic_arg_after_erasing_regions
-                .fetch_add(1, Ordering::Relaxed);
-
             try_normalize_after_erasing_regions(tcx, goal)
         },
         ..*p
diff --git a/compiler/rustc_traits/src/normalize_projection_ty.rs b/compiler/rustc_traits/src/normalize_projection_ty.rs
index 01bb1ca70eb..b8c71bc96f8 100644
--- a/compiler/rustc_traits/src/normalize_projection_ty.rs
+++ b/compiler/rustc_traits/src/normalize_projection_ty.rs
@@ -10,7 +10,6 @@ use rustc_trait_selection::traits::query::{
 use rustc_trait_selection::traits::{
     self, FulfillmentErrorCode, ObligationCause, SelectionContext,
 };
-use std::sync::atomic::Ordering;
 
 pub(crate) fn provide(p: &mut Providers) {
     *p = Providers {
@@ -27,7 +26,6 @@ fn normalize_projection_ty<'tcx>(
 ) -> Result<&'tcx Canonical<'tcx, QueryResponse<'tcx, NormalizationResult<'tcx>>>, NoSolution> {
     debug!("normalize_provider(goal={:#?})", goal);
 
-    tcx.sess.perf_stats.normalize_projection_ty.fetch_add(1, Ordering::Relaxed);
     tcx.infer_ctxt().enter_canonical_trait_query(
         &goal,
         |ocx, ParamEnvAnd { param_env, value: goal }| {
@@ -78,7 +76,6 @@ fn normalize_weak_ty<'tcx>(
 ) -> Result<&'tcx Canonical<'tcx, QueryResponse<'tcx, NormalizationResult<'tcx>>>, NoSolution> {
     debug!("normalize_provider(goal={:#?})", goal);
 
-    tcx.sess.perf_stats.normalize_projection_ty.fetch_add(1, Ordering::Relaxed);
     tcx.infer_ctxt().enter_canonical_trait_query(
         &goal,
         |ocx, ParamEnvAnd { param_env, value: goal }| {