From c5214df981a88d30226e9b3ac1b88da32395806a Mon Sep 17 00:00:00 2001
From: Conrad Irwin <conrad.irwin@gmail.com>
Date: Fri, 27 Feb 2026 16:24:14 -0700
Subject: [PATCH] Don't panic in duration underflow

In debug mode we check for tokens being dropped out of order, but in a
release build this can fail.
---
 cranelift/codegen/src/timing.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cranelift/codegen/src/timing.rs b/cranelift/codegen/src/timing.rs
index a06c6001ef41..8eb4630ba0ec 100644
--- a/cranelift/codegen/src/timing.rs
+++ b/cranelift/codegen/src/timing.rs
@@ -171,7 +171,10 @@ mod enabled {
 
         /// Returns the total amount of time taken by all the passes measured.
         pub fn total(&self) -> Duration {
-            self.pass.iter().map(|p| p.total - p.child).sum()
+            self.pass
+                .iter()
+                .map(|p| p.total.saturating_sub(p.child))
+                .sum()
         }
     }