From: Eddie Hung <eddie@fpgeh.com>
Date: Mon, 22 Jul 2019 20:48:33 +0000 (-0700)
Subject: opt and wreduce necessary for -dsp
X-Git-Tag: working-ls180~1039^2~309
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5e70b8a22bf38e622943b0546255befd539fa884;p=yosys.git

opt and wreduce necessary for -dsp
---

diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index fcb177491..ce88a0542 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -267,8 +267,10 @@ struct SynthIce40Pass : public ScriptPass
 			run("opt_clean");
 			if (help_mode || dsp) {
 				run("techmap -map +/mul2dsp.v -D DSP_A_MAXWIDTH=16 -D DSP_B_MAXWIDTH=16 -D DSP_MINWIDTH=11 -D DSP_NAME=$__MUL16X16", "(if -dsp)");
-				run("ice40_dsp", "(if -dsp)");
-				run("chtype -set $mul t:$__soft_mul");
+				run("opt_expr", "                     (if -dsp)");
+				run("wreduce", "                      (if -dsp)");
+				run("ice40_dsp", "                    (if -dsp)");
+				run("chtype -set $mul t:$__soft_mul","(if -dsp)");
 			}
 			run("alumacc");
 			run("opt");