Create `format_args` as late as possible

4 files changed, 9 insertions, 20 deletions

diff --git a/compiler/rustc_mir_transform/src/coverage/debug.rs b/compiler/rustc_mir_transform/src/coverage/debug.rs
index 0f8679b0bd6..d6a298fade4 100644
--- a/compiler/rustc_mir_transform/src/coverage/debug.rs
+++ b/compiler/rustc_mir_transform/src/coverage/debug.rs
@@ -638,7 +638,7 @@ pub(super) fn dump_coverage_spanview<'tcx>(
     let def_id = mir_source.def_id();
 
     let span_viewables = span_viewables(tcx, mir_body, basic_coverage_blocks, &coverage_spans);
-    let mut file = create_dump_file(tcx, "html", None, pass_name, &0, mir_source)
+    let mut file = create_dump_file(tcx, "html", false, pass_name, &0, mir_body)
         .expect("Unexpected error creating MIR spanview HTML file");
     let crate_name = tcx.crate_name(def_id.krate);
     let item_name = tcx.def_path(def_id).to_filename_friendly_no_crate();
@@ -739,7 +739,7 @@ pub(super) fn dump_coverage_graphviz<'tcx>(
                 .join("\n  ")
         ));
     }
-    let mut file = create_dump_file(tcx, "dot", None, pass_name, &0, mir_source)
+    let mut file = create_dump_file(tcx, "dot", false, pass_name, &0, mir_body)
         .expect("Unexpected error creating BasicCoverageBlock graphviz DOT file");
     graphviz_writer
         .write_graphviz(tcx, &mut file)
diff --git a/compiler/rustc_mir_transform/src/dest_prop.rs b/compiler/rustc_mir_transform/src/dest_prop.rs
index 8cd44ab82cc..97485c4f57b 100644
--- a/compiler/rustc_mir_transform/src/dest_prop.rs
+++ b/compiler/rustc_mir_transform/src/dest_prop.rs
@@ -787,7 +787,7 @@ fn dest_prop_mir_dump<'body, 'tcx>(
     round: usize,
 ) {
     let mut reachable = None;
-    dump_mir(tcx, None, "DestinationPropagation-dataflow", &round, body, |pass_where, w| {
+    dump_mir(tcx, false, "DestinationPropagation-dataflow", &round, body, |pass_where, w| {
         let reachable = reachable.get_or_insert_with(|| traversal::reachable_as_bitset(body));
 
         match pass_where {
diff --git a/compiler/rustc_mir_transform/src/generator.rs b/compiler/rustc_mir_transform/src/generator.rs
index ffe4d43bc88..8922298ecaf 100644
--- a/compiler/rustc_mir_transform/src/generator.rs
+++ b/compiler/rustc_mir_transform/src/generator.rs
@@ -1000,7 +1000,7 @@ fn create_generator_drop_shim<'tcx>(
     // unrelated code from the resume part of the function
     simplify::remove_dead_blocks(tcx, &mut body);
 
-    dump_mir(tcx, None, "generator_drop", &0, &body, |_, _| Ok(()));
+    dump_mir(tcx, false, "generator_drop", &0, &body, |_, _| Ok(()));
 
     body
 }
@@ -1171,7 +1171,7 @@ fn create_generator_resume_function<'tcx>(
     // unrelated code from the drop part of the function
     simplify::remove_dead_blocks(tcx, body);
 
-    dump_mir(tcx, None, "generator_resume", &0, body, |_, _| Ok(()));
+    dump_mir(tcx, false, "generator_resume", &0, body, |_, _| Ok(()));
 }
 
 fn insert_clean_drop(body: &mut Body<'_>) -> BasicBlock {
@@ -1394,14 +1394,14 @@ impl<'tcx> MirPass<'tcx> for StateTransform {
         // This is expanded to a drop ladder in `elaborate_generator_drops`.
         let drop_clean = insert_clean_drop(body);
 
-        dump_mir(tcx, None, "generator_pre-elab", &0, body, |_, _| Ok(()));
+        dump_mir(tcx, false, "generator_pre-elab", &0, body, |_, _| Ok(()));
 
         // Expand `drop(generator_struct)` to a drop ladder which destroys upvars.
         // If any upvars are moved out of, drop elaboration will handle upvar destruction.
         // However we need to also elaborate the code generated by `insert_clean_drop`.
         elaborate_generator_drops(tcx, body);
 
-        dump_mir(tcx, None, "generator_post-transform", &0, body, |_, _| Ok(()));
+        dump_mir(tcx, false, "generator_post-transform", &0, body, |_, _| Ok(()));
 
         // Create a copy of our MIR and use it to create the drop shim for the generator
         let drop_shim = create_generator_drop_shim(tcx, &transform, gen_ty, body, drop_clean);
diff --git a/compiler/rustc_mir_transform/src/pass_manager.rs b/compiler/rustc_mir_transform/src/pass_manager.rs
index 74add635bd5..6288d006e94 100644
--- a/compiler/rustc_mir_transform/src/pass_manager.rs
+++ b/compiler/rustc_mir_transform/src/pass_manager.rs
@@ -160,11 +160,9 @@ pub fn dump_mir_for_pass<'tcx>(
     pass_name: &str,
     is_after: bool,
 ) {
-    let phase_index = body.phase.phase_index();
-
     mir::dump_mir(
         tcx,
-        Some(&format_args!("{:03}-{:03}", phase_index, body.pass_count)),
+        true,
         pass_name,
         if is_after { &"after" } else { &"before" },
         body,
@@ -173,14 +171,5 @@ pub fn dump_mir_for_pass<'tcx>(
 }
 
 pub fn dump_mir_for_phase_change<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>) {
-    let phase_index = body.phase.phase_index();
-
-    mir::dump_mir(
-        tcx,
-        Some(&format_args!("{:03}-000", phase_index)),
-        body.phase.name(),
-        &"after",
-        body,
-        |_, _| Ok(()),
-    )
+    mir::dump_mir(tcx, true, body.phase.name(), &"after", body, |_, _| Ok(()))
 }