From f9fb05cf6684d855ce2fc776a20cd5552a4ef4a8 Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Mon, 25 Mar 2019 13:18:55 -0700 Subject: [PATCH] synth_xilinx to use shregmap with -minlen 3 --- techlibs/xilinx/synth_xilinx.cc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 5237cc4c6..b6225a1a3 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -114,7 +114,7 @@ struct SynthXilinxPass : public Pass log(" dff2dffe\n"); log(" opt -full\n"); log(" simplemap t:$dff* (only without -nosrl)\n"); - log(" shregmap -tech xilinx (only without -nosrl)\n"); + log(" shregmap -tech xilinx -minlen 3 (only without -nosrl)\n"); log(" techmap -map +/techmap.v -map +/xilinx/arith_map.v -map +/xilinx/ff_map.v\n"); log(" opt -fast\n"); log("\n"); @@ -267,7 +267,7 @@ struct SynthXilinxPass : public Pass if (!nosrl) { Pass::call(design, "simplemap t:$dff*"); - Pass::call(design, "shregmap -tech xilinx"); + Pass::call(design, "shregmap -tech xilinx -minlen 3"); } if (vpr) { -- 2.30.2