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Disable synth_gowin -abc9 as it offers no advantages yet

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This commit is contained in:
Eddie Hung 2019-12-30 12:05:52 -08:00
parent aa6d06c1b5
commit c9e3b26412
1 changed files with 12 additions and 12 deletions
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24
techlibs/gowin/synth_gowin.cc
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@ -62,16 +62,16 @@ struct SynthGowinPass : public ScriptPass
log(" do not flatten design before synthesis\n");
log("\n");
log(" -retime\n");
log(" run 'abc' with -dff option\n");
log(" run 'abc' with '-dff -D 1' options\n");
log("\n");
log(" -nowidelut\n");
log(" do not use muxes to implement LUTs larger than LUT4s\n");
log("\n");
log(" -noiopads\n");
log(" do not emit IOB at top level ports\n");
log("\n");
log(" -abc9\n");
log(" use new ABC9 flow (EXPERIMENTAL)\n");
//log("\n");
//log(" -abc9\n");
//log(" use new ABC9 flow (EXPERIMENTAL)\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
@ -144,10 +144,10 @@ struct SynthGowinPass : public ScriptPass
nowidelut = true;
continue;
}
if (args[argidx] == "-abc9") {
abc9 = true;
continue;
}
//if (args[argidx] == "-abc9") {
// abc9 = true;
// continue;
//}
if (args[argidx] == "-noiopads") {
noiopads = true;
continue;
@ -227,13 +227,13 @@ struct SynthGowinPass : public ScriptPass
if (check_label("map_luts"))
{
if (nowidelut && abc9) {
/*if (nowidelut && abc9) {
run("abc9 -lut 4");
} else if (nowidelut && !abc9) {
} else*/ if (nowidelut && !abc9) {
run("abc -lut 4");
} else if (!nowidelut && abc9) {
} else /*if (!nowidelut && abc9) {
run("abc9 -lut 4:8");
} else if (!nowidelut && !abc9) {
} else*/ if (!nowidelut && !abc9) {
run("abc -lut 4:8");
}
run("clean");