Rollup merge of #116896 - cjgillot:single-inline, r=oli-obk

Only check in a single place if a pass is enabled.

Fixes https://github.com/rust-lang/rust/issues/116294

2 files changed, 22 insertions, 13 deletions

diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs
index 01136974730..d579420ecb8 100644
--- a/compiler/rustc_mir_transform/src/lib.rs
+++ b/compiler/rustc_mir_transform/src/lib.rs
@@ -383,7 +383,7 @@ fn mir_drops_elaborated_and_const_checked(tcx: TyCtxt<'_>, def: LocalDefId) -> &
     let is_fn_like = tcx.def_kind(def).is_fn_like();
     if is_fn_like {
         // Do not compute the mir call graph without said call graph actually being used.
-        if inline::Inline.is_enabled(&tcx.sess) {
+        if pm::should_run_pass(tcx, &inline::Inline) {
             tcx.ensure_with_value().mir_inliner_callees(ty::InstanceDef::Item(def.to_def_id()));
         }
     }
diff --git a/compiler/rustc_mir_transform/src/pass_manager.rs b/compiler/rustc_mir_transform/src/pass_manager.rs
index 5abb2f3d041..a8aba29adcd 100644
--- a/compiler/rustc_mir_transform/src/pass_manager.rs
+++ b/compiler/rustc_mir_transform/src/pass_manager.rs
@@ -83,6 +83,25 @@ pub fn run_passes<'tcx>(
     run_passes_inner(tcx, body, passes, phase_change, true);
 }
 
+pub fn should_run_pass<'tcx, P>(tcx: TyCtxt<'tcx>, pass: &P) -> bool
+where
+    P: MirPass<'tcx> + ?Sized,
+{
+    let name = pass.name();
+
+    let overridden_passes = &tcx.sess.opts.unstable_opts.mir_enable_passes;
+    let overridden =
+        overridden_passes.iter().rev().find(|(s, _)| s == &*name).map(|(_name, polarity)| {
+            trace!(
+                pass = %name,
+                "{} as requested by flag",
+                if *polarity { "Running" } else { "Not running" },
+            );
+            *polarity
+        });
+    overridden.unwrap_or_else(|| pass.is_enabled(&tcx.sess))
+}
+
 fn run_passes_inner<'tcx>(
     tcx: TyCtxt<'tcx>,
     body: &mut Body<'tcx>,
@@ -100,19 +119,9 @@ fn run_passes_inner<'tcx>(
         for pass in passes {
             let name = pass.name();
 
-            let overridden = overridden_passes.iter().rev().find(|(s, _)| s == &*name).map(
-                |(_name, polarity)| {
-                    trace!(
-                        pass = %name,
-                        "{} as requested by flag",
-                        if *polarity { "Running" } else { "Not running" },
-                    );
-                    *polarity
-                },
-            );
-            if !overridden.unwrap_or_else(|| pass.is_enabled(&tcx.sess)) {
+            if !should_run_pass(tcx, *pass) {
                 continue;
-            }
+            };
 
             let dump_enabled = pass.is_mir_dump_enabled();