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-rw-r--r--techlibs/ice40/synth_ice40.cc8
1 files changed, 5 insertions, 3 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index 98d3e44e3..694782e5b 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -276,9 +276,11 @@ 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=$__MUL16X16", "(if -dsp)");
- run("wreduce t:$add", " (if -dsp)");
- run("ice40_dsp", " (if -dsp)");
- run("chtype -set $mul t:$__soft_mul","(if -dsp)");
+ run("opt_expr -fine a:mul2dsp", " (if -dsp)");
+ run("wreduce a:mul2dsp", " (if -dsp)");
+ run("ice40_dsp", " (if -dsp)");
+ run("setattr -unset mul2dsp a:mul2dsp", "(if -dsp)");
+ run("chtype -set $mul t:$__soft_mul", " (if -dsp)");
}
run("alumacc");
run("opt");