From f433a523742350b4bb9291ad65299015e2c81f05 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Fri, 21 Jun 2019 11:15:23 -0700 Subject: Add FIXME about need for -mux4 --- techlibs/xilinx/synth_xilinx.cc | 2 ++ 1 file changed, 2 insertions(+) (limited to 'techlibs') diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index ede2bda10..db3f5b7e4 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -275,6 +275,8 @@ struct SynthXilinxPass : public ScriptPass run("dff2dffe"); if (!nomux || help_mode) { run("simplemap t:$mux", " (skip if -nomux)"); + // FIXME: Must specify mux4, even if we don't need it, + // otherwise it will use mux8 as mux4 run("muxcover -mux4=150 -mux8=200 -mux16=250 -dmux=0", "(skip if -nomux)"); } run("opt -full"); -- cgit v1.2.3