--- a/python/ppci/codegen/codegen.py	Thu Mar 13 18:59:06 2014 +0100
+++ b/python/ppci/codegen/codegen.py	Fri Mar 14 10:30:13 2014 +0100
@@ -1,5 +1,6 @@
 from .. import ir
 from ..irutils import Verifier
+from ..transform import RemoveAddZero
 from ..target import Target
 from .. import CompilerError
 from .canon import make as canonicalize
@@ -27,6 +28,7 @@
 
         # Canonicalize the intermediate language:
         canonicalize(irfunc, frame)
+        RemoveAddZero().run(irfunc)
         self.logger.debug('after canonicalize', extra={'irfunc': irfunc})
         self.verifier.verify_function(irfunc)
         self.ins_sel.munchFunction(irfunc, frame)