From ed00823b41becc87b52317a82c595c398dd6d10a Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddie@fpgeh.com>
Date: Fri, 21 Jun 2019 16:56:56 -0700
Subject: synth_xilinx to now wreduce except $mux, remove extra peepopt
---
techlibs/xilinx/synth_xilinx.cc | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
(limited to 'techlibs/xilinx/synth_xilinx.cc')
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc
index 174138e6a..3d39afcde 100644
--- a/techlibs/xilinx/synth_xilinx.cc
+++ b/techlibs/xilinx/synth_xilinx.cc
@@ -226,8 +226,7 @@ struct SynthXilinxPass : public ScriptPass
run("opt_clean");
run("check");
run("opt");
- // FIXME
- //run("wreduce");
+ run("wreduce c:* t:$mux %d");
run("peepopt");
run("opt_clean");
run("alumacc");
@@ -247,11 +246,6 @@ struct SynthXilinxPass : public ScriptPass
// Also: wide multiplexer inference benefits from this too
if (!(nosrl && nomux) || help_mode)
run("pmux2shiftx", "(skip if '-nosrl' and '-nomux')");
-
- // Run a number of peephole optimisations, including one
- // that optimises $mul cells driving $shiftx's B input
- // and that aids wide mux analysis
- run("peepopt");
}
if (check_label("bram", "(skip if '-nobram')")) {
@@ -279,7 +273,6 @@ struct SynthXilinxPass : public ScriptPass
// otherwise it will use mux8 as mux4
run("muxcover -mux4=150 -mux8=200 -mux16=250 -dmux=0", "(skip if -nomux)");
}
- run("wreduce"); // FIXME: Moved until after muxcover from 'coarse'
run("opt -full");
if (!nosrl || help_mode) {
--
cgit v1.2.3