Auto merge of #93724 - Mark-Simulacrum:drop-query-stats, r=michaelwoerister

Delete -Zquery-stats infrastructure

These statistics are computable from the self-profile data and/or ad-hoc collectable as needed, and in the meantime contribute to rustc bootstrap times -- locally, this PR shaves ~2.5% from rustc_query_impl builds in instruction counts.

If this does lose some functionality we want to keep, I think we should migrate it to self-profile (or a similar interface) rather than this ad-hoc reporting.

2 files changed, 0 insertions, 5 deletions

diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs
index 2640a9575a3..89390ee1d6c 100644
--- a/compiler/rustc_interface/src/queries.rs
+++ b/compiler/rustc_interface/src/queries.rs
@@ -400,10 +400,6 @@ impl Compiler {
                 gcx.enter(rustc_query_impl::alloc_self_profile_query_strings);
             }
 
-            if self.session().opts.debugging_opts.query_stats {
-                gcx.enter(rustc_query_impl::print_stats);
-            }
-
             self.session()
                 .time("serialize_dep_graph", || gcx.enter(rustc_incremental::save_dep_graph));
         }
diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs
index e5e46703082..9ab138c1b12 100644
--- a/compiler/rustc_interface/src/tests.rs
+++ b/compiler/rustc_interface/src/tests.rs
@@ -684,7 +684,6 @@ fn test_debugging_options_tracking_hash() {
     untracked!(print_type_sizes, true);
     untracked!(proc_macro_backtrace, true);
     untracked!(query_dep_graph, true);
-    untracked!(query_stats, true);
     untracked!(save_analysis, true);
     untracked!(self_profile, SwitchWithOptPath::Enabled(None));
     untracked!(self_profile_events, Some(vec![String::new()]));