Feed the output filenames into the TyCtxt

Since the introduction of the crate attribute pre-expansion pass we
don't need access to the TyCtxt to compute it.

compiler/rustc_driver_impl/src/lib.rs

@@ -401,9 +401,9 @@ fn run_compiler(
                         Ok(())
                     })?;
 
-                    // Make sure the `output_filenames` query is run for its side
+                    // Make sure the `write_dep_info` query is run for its side
                     // effects of writing the dep-info and reporting errors.
-                    queries.global_ctxt()?.enter(|tcx| tcx.output_filenames(()));
+                    queries.global_ctxt()?.enter(|tcx| tcx.write_dep_info(()));
                 } else {
                     let krate = queries.parse()?;
                     pretty::print(
@@ -431,9 +431,9 @@ fn run_compiler(
                 return early_exit();
             }
 
-            // Make sure the `output_filenames` query is run for its side
+            // Make sure the `write_dep_info` query is run for its side
             // effects of writing the dep-info and reporting errors.
-            queries.global_ctxt()?.enter(|tcx| tcx.output_filenames(()));
+            queries.global_ctxt()?.enter(|tcx| tcx.write_dep_info(()));
 
             if sess.opts.output_types.contains_key(&OutputType::DepInfo)
                 && sess.opts.output_types.len() == 1

compiler/rustc_interface/src/passes.rs

@@ -39,7 +39,7 @@
 use std::ffi::OsString;
 use std::io::{self, BufWriter, Write};
 use std::path::{Path, PathBuf};
-use std::sync::{Arc, LazyLock};
+use std::sync::LazyLock;
 use std::{env, fs, iter};
 
 pub fn parse<'a>(sess: &'a Session) -> PResult<'a, ast::Crate> {
@@ -553,12 +553,12 @@ fn resolver_for_lowering<'tcx>(
     tcx.arena.alloc(Steal::new((untracked_resolver_for_lowering, Lrc::new(krate))))
 }
 
-fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc<OutputFilenames> {
+fn write_dep_info(tcx: TyCtxt<'_>, (): ()) {
     let sess = tcx.sess;
-    let _timer = sess.timer("prepare_outputs");
+    let _timer = sess.timer("write_dep_info");
     let crate_name = tcx.crate_name(LOCAL_CRATE);
 
-    let outputs = util::build_output_filenames(sess, crate_name.to_string());
+    let outputs = tcx.output_filenames(());
     let output_paths =
         generated_output_paths(tcx, &outputs, sess.io.output_file.is_some(), crate_name);
 
@@ -595,15 +595,13 @@ fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc<OutputFilenames> {
             }
         }
     }
-
-    outputs.into()
 }
 
 pub static DEFAULT_QUERY_PROVIDERS: LazyLock<Providers> = LazyLock::new(|| {
     let providers = &mut Providers::default();
     providers.analysis = analysis;
     providers.hir_crate = rustc_ast_lowering::lower_to_hir;
-    providers.output_filenames = output_filenames;
+    providers.write_dep_info = write_dep_info;
     providers.resolver_for_lowering = resolver_for_lowering;
     providers.early_lint_checks = early_lint_checks;
     proc_macro_decls::provide(providers);

compiler/rustc_interface/src/queries.rs

@@ -135,6 +135,7 @@ pub fn global_ctxt(&'tcx self) -> Result<QueryResult<'_, &'tcx GlobalCtxt<'tcx>>
                 sess.opts.cg.metadata.clone(),
                 sess.cfg_version,
             );
+            let outputs = util::build_output_filenames(sess, crate_name.to_string());
             let dep_graph = setup_dep_graph(sess, crate_name, stable_crate_id)?;
 
             let cstore = FreezeLock::new(Box::new(CStore::new(
@@ -169,6 +170,7 @@ pub fn global_ctxt(&'tcx self) -> Result<QueryResult<'_, &'tcx GlobalCtxt<'tcx>>
                     crate_name,
                 )));
                 feed.crate_for_resolver(tcx.arena.alloc(Steal::new((krate, pre_configured_attrs))));
+                feed.output_filenames(Arc::new(outputs));
             });
             Ok(qcx)
         })

compiler/rustc_middle/src/query/mod.rs

@@ -1916,6 +1916,11 @@
         arena_cache
     }
 
+    /// Write the dep-info file.
+    query write_dep_info(_: ()) -> () {
+        desc { "writing the dep-info file" }
+    }
+
     /// Do not call this query directly: invoke `normalize` instead.
     query normalize_projection_ty(
         goal: CanonicalProjectionGoal<'tcx>