From afbae64f05e4d90037be3152a105632ceb80c1b4 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Sun, 2 Apr 2023 12:23:22 -0700
Subject: [PATCH] Skip assert_linear_performance for RJIT

---
 tool/lib/core_assertions.rb | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tool/lib/core_assertions.rb b/tool/lib/core_assertions.rb
index 5ae9019c46..66f5d9ec53 100644
--- a/tool/lib/core_assertions.rb
+++ b/tool/lib/core_assertions.rb
@@ -732,13 +732,16 @@ eom
       #
       # :yield: each elements of +seq+.
       def assert_linear_performance(seq, rehearsal: nil, pre: ->(n) {n})
+        # Timeout testing generally doesn't work when RJIT compilation happens.
+        rjit_enabled = defined?(RubyVM::RJIT) && RubyVM::RJIT.enabled?
+
         first = seq.first
         *arg = pre.call(first)
         times = (0..(rehearsal || (2 * first))).map do
           st = Process.clock_gettime(Process::CLOCK_MONOTONIC)
           yield(*arg)
           t = (Process.clock_gettime(Process::CLOCK_MONOTONIC) - st)
-          assert_operator 0, :<=, t
+          assert_operator 0, :<=, t unless rjit_enabled
           t.nonzero?
         end
         times.compact!
@@ -754,7 +757,7 @@ eom
           Timeout.timeout(t, Timeout::Error, message) do
             st = Process.clock_gettime(Process::CLOCK_MONOTONIC)
             yield(*arg)
-            assert_operator (Process.clock_gettime(Process::CLOCK_MONOTONIC) - st), :<=, t, message
+            assert_operator (Process.clock_gettime(Process::CLOCK_MONOTONIC) - st), :<=, t, message unless rjit_enabled
           end
         end
       end