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Expand synth -coarse without wreduce, move muxcover

This commit is contained in:
Eddie Hung 2019-06-21 11:12:32 -07:00
parent 9edde91c26
commit dd22edcd28
1 changed files with 24 additions and 12 deletions
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36
techlibs/xilinx/synth_xilinx.cc
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@ -218,15 +218,25 @@ struct SynthXilinxPass : public ScriptPass
run(stringf("hierarchy -check %s", top_opt.c_str()));
}
if (check_label("flatten", "(with '-flatten' only)")) {
if (flatten || help_mode) {
run("proc");
run("flatten");
}
}
if (check_label("coarse")) {
run("synth -run coarse");
run("proc");
if (flatten || help_mode)
run("flatten", "(with -flatten only)");
run("opt_expr");
run("opt_clean");
run("check");
run("opt");
// FIXME
//run("wreduce");
run("peepopt");
run("opt_clean");
run("alumacc");
run("share");
run("opt");
run("fsm");
run("opt -fast");
run("memory -nomap");
run("opt_clean");
//if (!nomux || help_mode)
// run("muxpack", "(skip if '-nomux')");
@ -259,16 +269,20 @@ struct SynthXilinxPass : public ScriptPass
}
if (check_label("fine")) {
run("opt -fast -full");
run("opt -fast");
run("memory_map");
run("dffsr2dff");
run("dff2dffe");
if (!nomux || help_mode) {
run("simplemap t:$mux", " (skip if -nomux)");
run("muxcover -mux4=150 -mux8=200 -mux16=250 -dmux=0", "(skip if -nomux)");
}
run("opt -full");
if (!nosrl || help_mode) {
// shregmap operates on bit-level flops, not word-level,
// so break those down here
run("simplemap t:$dff t:$dffe", "(skip if '-nosrl')");
run("simplemap t:$dff t:$dffe", " (skip if '-nosrl')");
// shregmap with '-tech xilinx' infers variable length shift regs
run("shregmap -tech xilinx -minlen 3", "(skip if '-nosrl')");
}
@ -292,8 +306,6 @@ struct SynthXilinxPass : public ScriptPass
}
if (check_label("map_cells")) {
if (!nomux || help_mode)
run("muxcover -mux8 -mux16", "(skip if '-nomux')");
run("techmap -map +/techmap.v -map +/xilinx/cells_map.v");
run("clean");
}