Tweak the sort of vtable sizes

2023-06-13 12:39:59 +00:00
parent 8e6a193946
commit dc0fba0238
1 changed files with 6 additions and 2 deletions
--- a/compiler/rustc_session/src/code_stats.rs
+++ b/compiler/rustc_session/src/code_stats.rs
@@ -232,9 +232,13 @@ impl CodeStats {
            .map(|(_did, stats)| stats)
            .collect::<Vec<_>>();

-        // Sort by the cost % in reverse order (from biggest to smallest)
+        // Primary sort: cost % in reverse order (from largest to smallest)
+        // Secondary sort: trait_name
        infos.sort_by(|a, b| {
-            a.upcasting_cost_percent.total_cmp(&b.upcasting_cost_percent).reverse()
+            a.upcasting_cost_percent
+                .total_cmp(&b.upcasting_cost_percent)
+                .reverse()
+                .then_with(|| a.trait_name.cmp(&b.trait_name))
        });

        for VTableSizeInfo {