2 files changed, 19 insertions, 7 deletions
diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs
index 3ef87684fa5..93b4032c310 100644
--- a/compiler/rustc_data_structures/src/lib.rs
+++ b/compiler/rustc_data_structures/src/lib.rs
@@ -150,3 +150,14 @@ pub fn make_display(f: impl Fn(&mut fmt::Formatter<'_>) -> fmt::Result) -> impl
 // See comments in src/librustc_middle/lib.rs
 #[doc(hidden)]
 pub fn __noop_fix_for_27438() {}
+
+#[macro_export]
+macro_rules! external_bitflags_debug {
+    ($Name:ident) => {
+        impl ::std::fmt::Debug for $Name {
+            fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
+                ::bitflags::parser::to_writer(self, f)
+            }
+        }
+    };
+}
diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs
index ef7375a7320..e29d4811980 100644
--- a/compiler/rustc_data_structures/src/profiling.rs
+++ b/compiler/rustc_data_structures/src/profiling.rs
@@ -101,6 +101,7 @@ use parking_lot::RwLock;
 use smallvec::SmallVec;
 
 bitflags::bitflags! {
+    #[derive(Clone, Copy)]
     struct EventFilter: u16 {
         const GENERIC_ACTIVITIES  = 1 << 0;
         const QUERY_PROVIDERS     = 1 << 1;
@@ -114,14 +115,14 @@ bitflags::bitflags! {
         const INCR_RESULT_HASHING = 1 << 8;
         const ARTIFACT_SIZES = 1 << 9;
 
-        const DEFAULT = Self::GENERIC_ACTIVITIES.bits |
-                        Self::QUERY_PROVIDERS.bits |
-                        Self::QUERY_BLOCKED.bits |
-                        Self::INCR_CACHE_LOADS.bits |
-                        Self::INCR_RESULT_HASHING.bits |
-                        Self::ARTIFACT_SIZES.bits;
+        const DEFAULT = Self::GENERIC_ACTIVITIES.bits() |
+                        Self::QUERY_PROVIDERS.bits() |
+                        Self::QUERY_BLOCKED.bits() |
+                        Self::INCR_CACHE_LOADS.bits() |
+                        Self::INCR_RESULT_HASHING.bits() |
+                        Self::ARTIFACT_SIZES.bits();
 
-        const ARGS = Self::QUERY_KEYS.bits | Self::FUNCTION_ARGS.bits;
+        const ARGS = Self::QUERY_KEYS.bits() | Self::FUNCTION_ARGS.bits();
     }
 }