remove set optimization

will become obsolete soon anyway

lib/virtual.rb

@@ -14,7 +14,6 @@ require "virtual/type"
 require "virtual/passes/minimizer"
 require "virtual/passes/collector"
 require "virtual/passes/enter_implementation"
-require "virtual/passes/set_optimisation"
 
 
 class Fixnum

lib/virtual/passes/set_optimisation.rb

@@ -1,19 +0,0 @@
-module Virtual
-
-  class SetOptimisation
-    def run block
-      block.codes.dup.each_with_index do |code , i|
-        next unless code.is_a? Virtual::Set
-        next_code = block.codes[i+1]
-        next unless next_code.is_a? Virtual::Set
-        next unless code.to == next_code.from
-        # TODO: a correct implementation would have to check that the code.to
-        #       is not used in further blocks, before being assigned to
-        new_code = Virtual::Set.new(code.from , next_code.to )
-        block.replace(code , [new_code] )
-        block.replace(next_code , [] )
-      end
-    end
-  end
-  Virtual.machine.add_pass "Virtual::SetOptimisation"
-end