2 files changed, 33 insertions, 0 deletions
diff --git a/compiler/rustc_const_eval/messages.ftl b/compiler/rustc_const_eval/messages.ftl
index e99005316b3..d8eade5bd2a 100644
--- a/compiler/rustc_const_eval/messages.ftl
+++ b/compiler/rustc_const_eval/messages.ftl
@@ -399,6 +399,9 @@ const_eval_unallowed_mutable_refs_raw =
 const_eval_unallowed_op_in_const_context =
     {$msg}
 
+const_eval_unavailable_target_features_for_fn =
+    calling a function that requires unavailable target features: {$unavailable_feats}
+
 const_eval_undefined_behavior =
     it is undefined behavior to use this value
 
diff --git a/compiler/rustc_const_eval/src/interpret/terminator.rs b/compiler/rustc_const_eval/src/interpret/terminator.rs
index c944782b487..7964c6be008 100644
--- a/compiler/rustc_const_eval/src/interpret/terminator.rs
+++ b/compiler/rustc_const_eval/src/interpret/terminator.rs
@@ -503,6 +503,11 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
                     }
                 }
 
+                // Check that all target features required by the callee (i.e., from
+                // the attribute `#[target_feature(enable = ...)]`) are enabled at
+                // compile time.
+                self.check_fn_target_features(instance)?;
+
                 if !callee_fn_abi.can_unwind {
                     // The callee cannot unwind, so force the `Unreachable` unwind handling.
                     unwind = mir::UnwindAction::Unreachable;
@@ -786,6 +791,31 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
         }
     }
 
+    fn check_fn_target_features(&self, instance: ty::Instance<'tcx>) -> InterpResult<'tcx, ()> {
+        let attrs = self.tcx.codegen_fn_attrs(instance.def_id());
+        if attrs
+            .target_features
+            .iter()
+            .any(|feature| !self.tcx.sess.target_features.contains(feature))
+        {
+            throw_ub_custom!(
+                fluent::const_eval_unavailable_target_features_for_fn,
+                unavailable_feats = attrs
+                    .target_features
+                    .iter()
+                    .filter(|&feature| !self.tcx.sess.target_features.contains(feature))
+                    .fold(String::new(), |mut s, feature| {
+                        if !s.is_empty() {
+                            s.push_str(", ");
+                        }
+                        s.push_str(feature.as_str());
+                        s
+                    }),
+            );
+        }
+        Ok(())
+    }
+
     fn drop_in_place(
         &mut self,
         place: &PlaceTy<'tcx, M::Provenance>,