From: Eddie Hung <eddie@fpgeh.com>
Date: Thu, 26 Sep 2019 00:22:04 +0000 (-0700)
Subject: Only wreduce on t:$add
X-Git-Tag: working-ls180~1039^2~22
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=63940913d21fcfb18cd844d7e5b9c8b41a82295b;p=yosys.git

Only wreduce on t:$add
---

diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index 7a8f3d70c..98d3e44e3 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -276,7 +276,7 @@ struct SynthIce40Pass : public ScriptPass
 				run("techmap -map +/mul2dsp.v -map +/ice40/dsp_map.v -D DSP_A_MAXWIDTH=16 -D DSP_B_MAXWIDTH=16 "
 						"-D DSP_A_MINWIDTH=2 -D DSP_B_MINWIDTH=2 -D DSP_Y_MINWIDTH=11 "
 						"-D DSP_NAME=$__MUL16X16", "(if -dsp)");
-				run("wreduce", "                      (if -dsp)");
+				run("wreduce t:$add", "               (if -dsp)");
 				run("ice40_dsp", "                    (if -dsp)");
 				run("chtype -set $mul t:$__soft_mul","(if -dsp)");
 			}