pytholite: prune unused registers

2012-12-19 16:03:05 +01:00 · 2012-12-19 16:03:05 +01:00 · 9c65402fda
parent 3fae6c8f03
commit 9c65402fda
1 changed files with 3 additions and 2 deletions
--- a/migen/pytholite/compiler.py
+++ b/migen/pytholite/compiler.py
@ -237,8 +237,9 @@ def make_pytholite(func, **ioresources):
 	
 	regf = Fragment()
 	for register in registers:
-		register.finalize()
-		regf += register.get_fragment()
+		if register.source_encoding:
+			register.finalize()
+			regf += register.get_fragment()
 	
 	fsm = implement_fsm(states)
 	fsmf = LowerAbstractLoad().visit(fsm.get_fragment())