From 38a0c30d65584335fee3e17f9075711853638ac3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcelina=20Ko=C5=9Bcielnicka?= <mwk@0x04.net>
Date: Sat, 11 Apr 2020 18:36:51 +0200
Subject: Get rid of dffsr2dff.

This pass is a proper subset of opt_rmdff, which is called by opt, which
is called by every synth flow in the coarse part.  Thus, it never
actually does anything and can be safely removed.
---
 techlibs/ice40/synth_ice40.cc | 1 -
 1 file changed, 1 deletion(-)

(limited to 'techlibs/ice40')

diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index 463e80ee2..9724b7dd5 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -341,7 +341,6 @@ struct SynthIce40Pass : public ScriptPass
 
 		if (check_label("map_ffs"))
 		{
-			run("dffsr2dff");
 			if (!nodffe)
 				run("dff2dffe -direct-match $_DFF_*");
 			if (min_ce_use >= 0) {
-- 
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