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-rw-r--r--src/librustc_data_structures/profiling.rs2
-rw-r--r--src/librustc_session/options.rs6
2 files changed, 7 insertions, 1 deletions
diff --git a/src/librustc_data_structures/profiling.rs b/src/librustc_data_structures/profiling.rs
index 004db0a79a8..44cef727f03 100644
--- a/src/librustc_data_structures/profiling.rs
+++ b/src/librustc_data_structures/profiling.rs
@@ -136,9 +136,11 @@ bitflags::bitflags! {
     }
 }
 
+// keep this in sync with the `-Z self-profile-events` help message in librustc_session/options.rs
 const EVENT_FILTERS_BY_NAME: &[(&str, EventFilter)] = &[
     ("none", EventFilter::NONE),
     ("all", EventFilter::ALL),
+    ("default", EventFilter::DEFAULT),
     ("generic-activity", EventFilter::GENERIC_ACTIVITIES),
     ("query-provider", EventFilter::QUERY_PROVIDERS),
     ("query-cache-hit", EventFilter::QUERY_CACHE_HITS),
diff --git a/src/librustc_session/options.rs b/src/librustc_session/options.rs
index 4b5736adc17..2a0ed27b63b 100644
--- a/src/librustc_session/options.rs
+++ b/src/librustc_session/options.rs
@@ -923,8 +923,12 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
     self_profile: SwitchWithOptPath = (SwitchWithOptPath::Disabled,
         parse_switch_with_opt_path, [UNTRACKED],
         "run the self profiler and output the raw event data"),
+    // keep this in sync with the event filter names in librustc_data_structures/profiling.rs
     self_profile_events: Option<Vec<String>> = (None, parse_opt_comma_list, [UNTRACKED],
-        "specifies which kinds of events get recorded by the self profiler"),
+        "specifies which kinds of events get recorded by the self profiler;
+        for example: `-Z self-profile-events=default,query-keys`
+        all options: none, all, default, generic-activity, query-provider, query-cache-hit
+                     query-blocked, incr-cache-load, query-keys"),
     emit_stack_sizes: bool = (false, parse_bool, [UNTRACKED],
         "emits a section containing stack size metadata"),
     plt: Option<bool> = (None, parse_opt_bool, [TRACKED],