2 files changed, 13 insertions, 27 deletions

diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index 4b3034c4781..37b381c534e 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -16,7 +16,7 @@ use rustc_data_structures::parallel;
 use rustc_data_structures::sync::{Lrc, OnceCell, WorkerLocal};
 use rustc_errors::{ErrorGuaranteed, PResult};
 use rustc_expand::base::{ExtCtxt, LintStoreExpand, ResolverExpand};
-use rustc_hir::def_id::StableCrateId;
+use rustc_hir::def_id::{StableCrateId, LOCAL_CRATE};
 use rustc_lint::{BufferedEarlyLint, EarlyCheckNode, LintStore};
 use rustc_metadata::creader::CStore;
 use rustc_middle::arena::Arena;
@@ -47,7 +47,7 @@ use std::marker::PhantomPinned;
 use std::path::{Path, PathBuf};
 use std::pin::Pin;
 use std::rc::Rc;
-use std::sync::LazyLock;
+use std::sync::{Arc, LazyLock};
 use std::{env, fs, iter};
 
 pub fn parse<'a>(sess: &'a Session) -> PResult<'a, ast::Crate> {
@@ -660,13 +660,11 @@ fn write_out_deps(
     }
 }
 
-pub fn prepare_outputs(
-    sess: &Session,
-    krate: &ast::Crate,
-    cstore: &CrateStoreDyn,
-    crate_name: Symbol,
-) -> Result<OutputFilenames> {
+fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc<OutputFilenames> {
+    let sess = tcx.sess;
     let _timer = sess.timer("prepare_outputs");
+    let (_, krate) = &*tcx.resolver_for_lowering(()).borrow();
+    let crate_name = tcx.crate_name(LOCAL_CRATE);
 
     // FIXME: rustdoc passes &[] instead of &krate.attrs here
     let outputs = util::build_output_filenames(&krate.attrs, sess);
@@ -678,25 +676,21 @@ pub fn prepare_outputs(
     if let Some(ref input_path) = sess.io.input.opt_path() {
         if sess.opts.will_create_output_file() {
             if output_contains_path(&output_paths, input_path) {
-                let reported = sess.emit_err(InputFileWouldBeOverWritten { path: input_path });
-                return Err(reported);
+                sess.emit_fatal(InputFileWouldBeOverWritten { path: input_path });
             }
             if let Some(ref dir_path) = output_conflicts_with_dir(&output_paths) {
-                let reported =
-                    sess.emit_err(GeneratedFileConflictsWithDirectory { input_path, dir_path });
-                return Err(reported);
+                sess.emit_fatal(GeneratedFileConflictsWithDirectory { input_path, dir_path });
             }
         }
     }
 
     if let Some(ref dir) = sess.io.temps_dir {
         if fs::create_dir_all(dir).is_err() {
-            let reported = sess.emit_err(TempsDirError);
-            return Err(reported);
+            sess.emit_fatal(TempsDirError);
         }
     }
 
-    write_out_deps(sess, cstore, &outputs, &output_paths);
+    write_out_deps(sess, tcx.cstore_untracked(), &outputs, &output_paths);
 
     let only_dep_info = sess.opts.output_types.contains_key(&OutputType::DepInfo)
         && sess.opts.output_types.len() == 1;
@@ -704,19 +698,19 @@ pub fn prepare_outputs(
     if !only_dep_info {
         if let Some(ref dir) = sess.io.output_dir {
             if fs::create_dir_all(dir).is_err() {
-                let reported = sess.emit_err(OutDirError);
-                return Err(reported);
+                sess.emit_fatal(OutDirError);
             }
         }
     }
 
-    Ok(outputs)
+    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;
     proc_macro_decls::provide(providers);
     rustc_const_eval::provide(providers);
     rustc_middle::hir::provide(providers);
diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs
index fe24d41a4de..96cd3b06321 100644
--- a/compiler/rustc_interface/src/queries.rs
+++ b/compiler/rustc_interface/src/queries.rs
@@ -235,14 +235,6 @@ impl<'tcx> Queries<'tcx> {
                     tcx.arena.alloc(Steal::new((untracked_resolver_for_lowering, krate))),
                 );
                 feed.resolutions(tcx.arena.alloc(untracked_resolutions));
-
-                let outputs = passes::prepare_outputs(
-                    self.session(),
-                    &krate,
-                    &*untracked.cstore,
-                    crate_name,
-                )?;
-                feed.output_filenames(tcx.arena.alloc(std::sync::Arc::new(outputs)));
                 feed.features_query(tcx.sess.features_untracked());
                 let feed = tcx.feed_local_crate();
                 feed.crate_name(crate_name);