From 4f44e3399ba6c959c830943c44c4ad728be895fa Mon Sep 17 00:00:00 2001 From: Eddie Hung Date: Wed, 22 May 2019 02:36:28 -0700 Subject: [PATCH] shift register inference before mux --- techlibs/xilinx/synth_xilinx.cc | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index ec7768ffe..3cee81a7b 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -266,9 +266,6 @@ struct SynthXilinxPass : public ScriptPass else if (!nocarry || help_mode) run("techmap -map +/xilinx/arith_map.v", "(skip if '-nocarry')"); - if (!nomux || help_mode) - run("techmap -map +/xilinx/cells_map.v"); - if (!nosrl || help_mode) { // shregmap operates on bit-level flops, not word-level, // so break those down here @@ -277,6 +274,9 @@ struct SynthXilinxPass : public ScriptPass run("shregmap -tech xilinx -minlen 3", "(skip if '-nosrl')"); } + if (!nomux || help_mode) + run("techmap -map +/xilinx/cells_map.v"); + run("techmap"); run("opt -fast"); } -- 2.30.2