From 9b4ceec60e039433a4409ca2f89af97e1c3b581d Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Mon, 4 Nov 2019 11:17:40 +0100
Subject: [PATCH] update comment re: not using higher mir-opt-level

---
 tests/compiletest.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tests/compiletest.rs b/tests/compiletest.rs
index 00fd039ad7e..bc1ba2eda56 100644
--- a/tests/compiletest.rs
+++ b/tests/compiletest.rs
@@ -66,9 +66,8 @@ fn compile_fail(path: &str, target: &str, opt: bool) {
 
     let mut flags = Vec::new();
     if opt {
-        // Optimizing too aggressivley makes UB detection harder, but test at least
-        // the default value.
-        // FIXME: Opt level 3 ICEs during stack trace generation.
+        // FIXME: Opt level 2 ICEs during stack trace generation.
+        // See https://github.com/rust-lang/rust/issues/66077.
         flags.push("-Zmir-opt-level=1".to_owned());
     }
 
-- 
2.44.0