giving the method to return and save

so they can make decisions like wether to create a frame or not
2015-06-28 22:03:21 +03:00
parent 02615db508
commit a16abeb3e6
4 changed files with 19 additions and 5 deletions
--- a/lib/virtual/passes/enter_implementation.rb
+++ b/lib/virtual/passes/enter_implementation.rb
@ -8,7 +8,9 @@ module Virtual
        # save return register and create a new frame
        # lr is link register, ie where arm stores the return address when call is issued
        new_codes << Register::SaveReturn.new( Register::RegisterReference.message_reg , Virtual::RETURN_INDEX )
-        new_codes << Virtual::NewFrame.new
+        unless code.method.locals.empty? and code.method.tmps.empty?
+          new_codes << Virtual::NewFrame.new
+        end
        block.replace(code , new_codes )
      end
    end