Issue #19781 has been reported by k0kubun (Takashi Kokubun). ---------------------------------------- Bug #19781: Stack consistency error with tailcall and YJIT enabled https://bugs.ruby-lang.org/issues/19781 * Author: k0kubun (Takashi Kokubun) * Status: Open * Priority: Normal * Assignee: yjit * Backport: 3.0: DONTNEED, 3.1: REQUIRED, 3.2: REQUIRED ---------------------------------------- ```rb src = <<-EOS def apply_one_and_two(&block) [1, p(1)] end def add_one_and_two apply_one_and_two(&:+) end EOS RubyVM::InstructionSequence.new( "proc {|_|_.class_eval {#{src}}}", __FILE__, __FILE__, 1, tailcall_optimization: true, trace_instruction: false, ).eval[self.singleton_class] def entry add_one_and_two end entry ``` This script causes "Stack consistency error" with `ruby --yjit-call-threshold=1` on any YJIT-enabled build (3.1, 3.2, and master). -- https://bugs.ruby-lang.org/