https://git.ruby-lang.org/ruby.git/commit/?id=7dbbba38a0

From 7dbbba38a0a6acd41a43eb0c4fc416fe35e2345a Mon Sep 17 00:00:00 2001
From: Aaron Patterson <tenderlove@r...>
Date: Fri, 11 Oct 2019 17:13:02 -0700
Subject: Make sure we don't push MOVED or NONE on the stack


diff --git a/tool/ruby_vm/views/_insn_entry.erb b/tool/ruby_vm/views/_insn_entry.erb
index cdadd93..90e1268 100644
--- a/tool/ruby_vm/views/_insn_entry.erb
+++ b/tool/ruby_vm/views/_insn_entry.erb
@@ -64,6 +64,8 @@ INSN_ENTRY(<%= insn.name %>) https://github.com/ruby/ruby/blob/trunk/tool/ruby_vm/views/_insn_entry.erb#L64
     INC_SP(INSN_ATTR(sp_inc));
 %   insn.rets.reverse_each.with_index do |ret, i|
     TOPN(<%= i %>) = <%= insn.cast_to_VALUE ret %>;
+    VM_ASSERT(!RB_TYPE_P(TOPN(<%= i %>), T_NONE));
+    VM_ASSERT(!RB_TYPE_P(TOPN(<%= i %>), T_MOVED));
 %   end
 % end
     if (leaf) ADD_PC(INSN_ATTR(width));
-- 
cgit v0.10.2


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