1 files changed, 5 insertions, 0 deletions
diff --git a/tool/ruby_vm/models/bare_instructions.rb b/tool/ruby_vm/models/bare_instructions.rb
index 297a93f5b2..f540295531 100755
--- a/tool/ruby_vm/models/bare_instructions.rb
+++ b/tool/ruby_vm/models/bare_instructions.rb
@@ -101,6 +101,10 @@ class RubyVM::BareInstructions
     }.join
   end
 
+  def handles_stack?
+    /\b(false|0)\b/ !~ @attrs['handles_stack'].expr.expr
+  end
+
   def inspect
     sprintf "#<%s %s@%s:%d>", self.class.name, @name, @loc[0], @loc[1]
   end
@@ -125,6 +129,7 @@ class RubyVM::BareInstructions
     generate_attribute 'rb_num_t', 'retn', rets.size
     generate_attribute 'rb_num_t', 'width', width
     generate_attribute 'rb_snum_t', 'sp_inc', rets.size - pops.size
+    generate_attribute 'bool', 'handles_stack', false
   end
 
   def typesplit a