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Merge remote-tracking branch 'origin/master' into xaig

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This commit is contained in:
Eddie Hung 2019-02-21 11:23:00 -08:00
commit a8803a1519
16 changed files with 1874 additions and 63 deletions
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31
techlibs/ice40/synth_ice40.cc
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@ -79,6 +79,9 @@ struct SynthIce40Pass : public ScriptPass
log(" -nobram\n");
log(" do not use SB_RAM40_4K* cells in output netlist\n");
log("\n");
log(" -dsp\n");
log(" use iCE40 UltraPlus DSP cells for large arithmetic\n");
log("\n");
log(" -noabc\n");
log(" use built-in Yosys LUT techmapping instead of abc\n");
log("\n");
@ -98,8 +101,9 @@ struct SynthIce40Pass : public ScriptPass
log("\n");
}
string top_opt, blif_file, edif_file, json_file, abc;
bool nocarry, nodffe, nobram, flatten, retime, relut, noabc, abc2, vpr;
bool nocarry, nodffe, nobram, dsp, flatten, retime, relut, noabc, abc2, vpr;
int min_ce_use;
void clear_flags() YS_OVERRIDE
@ -112,6 +116,7 @@ struct SynthIce40Pass : public ScriptPass
nodffe = false;
min_ce_use = -1;
nobram = false;
dsp = false;
flatten = true;
retime = false;
relut = false;
@ -185,6 +190,10 @@ struct SynthIce40Pass : public ScriptPass
nobram = true;
continue;
}
if (args[argidx] == "-dsp") {
dsp = true;
continue;
}
if (args[argidx] == "-noabc") {
noabc = true;
continue;
@ -222,11 +231,11 @@ struct SynthIce40Pass : public ScriptPass
{
run("read_verilog -lib +/ice40/cells_sim.v");
run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str()));
run("proc");
}
if (flatten && check_label("flatten", "(unless -noflatten)"))
{
run("proc");
run("flatten");
run("tribuf -logic");
run("deminout");
@ -234,7 +243,23 @@ struct SynthIce40Pass : public ScriptPass
if (check_label("coarse"))
{
run("synth -lut 4 -run coarse");
run("opt_expr");
run("opt_clean");
run("check");
run("opt");
run("wreduce");
run("share");
run("techmap -map +/cmp2lut.v -D LUT_WIDTH=4");
run("opt_expr");
run("opt_clean");
if (help_mode || dsp)
run("ice40_dsp", "(if -dsp)");
run("alumacc");
run("opt");
run("fsm");
run("opt -fast");
run("memory -nomap");
run("opt_clean");
}
if (!nobram && check_label("bram", "(skip if -nobram)"))