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Do not call opt -mux_undef (part of -full) before muxcover

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This commit is contained in:
Eddie Hung 2019-07-08 23:49:16 -07:00
parent d4ab43d940
commit 45da3ada7b
1 changed files with 5 additions and 1 deletions
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6
techlibs/xilinx/synth_xilinx.cc
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@ -270,7 +270,11 @@ struct SynthXilinxPass : public ScriptPass
}
if (check_label("fine")) {
run("opt -fast -full");
if (widemux > 0)
run("opt -fast -mux_bool -undriven -fine"); // Necessary to omit -mux_undef otherwise muxcover
// performs less efficiently
else
run("opt -fast -full");
run("memory_map");
run("dffsr2dff");
run("dff2dffe");