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-rw-r--r--compiler/rustc_session/src/options.rs3
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs
index dab9c736d14..9e130287104 100644
--- a/compiler/rustc_session/src/options.rs
+++ b/compiler/rustc_session/src/options.rs
@@ -1294,6 +1294,9 @@ options! {
         computed `block` spans (one span encompassing a block's terminator and \
         all statements). If `-Z instrument-coverage` is also enabled, create \
         an additional `.html` file showing the computed coverage spans."),
+    dump_mono_stats: SwitchWithOptPath = (SwitchWithOptPath::Disabled,
+        parse_switch_with_opt_path, [UNTRACKED],
+        "output statistics about monomorphization collection (format: markdown)"),
     dwarf_version: Option<u32> = (None, parse_opt_number, [TRACKED],
         "version of DWARF debug information to emit (default: 2 or 4, depending on platform)"),
     dylib_lto: bool = (false, parse_bool, [UNTRACKED],