From e79ba76ec462031c9d5fa2130bc631600bc6d875 Mon Sep 17 00:00:00 2001
From: Peh <20146907+randomicon00@users.noreply.github.com>
Date: Wed, 30 Mar 2022 00:29:29 +0000
Subject: [PATCH] Fixing #95444 by only displaying passes that take more than 5
 milliseconds

95444: Adding passes that include memory increase

Fix95444: Change the substraction with the abs_diff() method

Fix95444: Change the substraction with abs_diff() method
---
 .../rustc_data_structures/src/profiling.rs    | 21 ++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs
index fd6ff086b08..e122536f61f 100644
--- a/compiler/rustc_data_structures/src/profiling.rs
+++ b/compiler/rustc_data_structures/src/profiling.rs
@@ -649,11 +649,30 @@ impl Drop for VerboseTimingGuard<'_> {
     fn drop(&mut self) {
         if let Some((start_time, start_rss, ref message)) = self.start_and_message {
             let end_rss = get_resident_set_size();
-            print_time_passes_entry(&message, start_time.elapsed(), start_rss, end_rss);
+            let dur = start_time.elapsed();
+
+            if should_print_passes(dur, start_rss, end_rss) {
+                print_time_passes_entry(&message, dur, start_rss, end_rss);
+            }
         }
     }
 }
 
+fn should_print_passes(dur: Duration, start_rss: Option<usize>, end_rss: Option<usize>) -> bool {
+    if dur.as_millis() > 5 {
+        return true;
+    }
+
+    if let (Some(start_rss), Some(end_rss)) = (start_rss, end_rss) {
+        let change_rss = end_rss.abs_diff(start_rss);
+        if change_rss > 0 {
+            return true;
+        }
+    }
+
+    false
+}
+
 pub fn print_time_passes_entry(
     what: &str,
     dur: Duration,