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synth_xilinx's muxcover call to be very conservative -- -nodecode

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Eddie Hung 2019-06-26 17:57:10 -07:00
parent f0a1726a1a
commit b9ff0503f3
1 changed files with 1 additions and 1 deletions
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2
techlibs/xilinx/synth_xilinx.cc
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@ -282,7 +282,7 @@ struct SynthXilinxPass : public ScriptPass
}
else if (widemux > 0) {
run("simplemap t:$mux");
std::string muxcover_args = " -dmux=0";
std::string muxcover_args = " -nodecode";
switch (widemux) {
// NB: Cost of mux2 is 100; mux8 should cost between 3 and 4
// of those so that 4:1 muxes and below are implemented