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Add latch inference msg severity option.

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This commit is contained in:
nella 2026-06-15 14:17:02 +02:00
parent 8869ce61dc
commit 7473fcf939
4 changed files with 97 additions and 7 deletions
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12
techlibs/common/synth.cc
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@ -78,6 +78,9 @@ struct SynthPass : public ScriptPass {
log(" -nordff\n");
log(" passed to 'memory'. prohibits merging of FFs into memory read ports\n");
log("\n");
log(" -latches <auto|warn|error>\n");
log(" controls how the inference of a latch is reported.\n");
log("\n");
log(" -noshare\n");
log(" do not run SAT-based resource sharing\n");
log("\n");
@ -111,7 +114,7 @@ struct SynthPass : public ScriptPass {
log("\n");
}
string top_module, fsm_opts, memory_opts, abc;
string top_module, fsm_opts, memory_opts, abc, latches_opt;
bool autotop, flatten, noalumacc, nofsm, noabc, noshare, flowmap, booth, arith_tree, hieropt, relative_share;
int lut;
std::vector<std::string> techmap_maps;
@ -121,6 +124,7 @@ struct SynthPass : public ScriptPass {
top_module.clear();
fsm_opts.clear();
memory_opts.clear();
latches_opt.clear();
autotop = false;
flatten = false;
@ -200,6 +204,10 @@ struct SynthPass : public ScriptPass {
memory_opts += " -nordff";
continue;
}
if (args[argidx] == "-latches" && argidx + 1 < args.size()) {
latches_opt += " -latches " + args[++argidx];
continue;
}
if (args[argidx] == "-noshare") {
noshare = true;
continue;
@ -276,7 +284,7 @@ struct SynthPass : public ScriptPass {
}
if (check_label("coarse")) {
run("proc");
run("proc" + latches_opt);
if (flatten || help_mode) {
run("check");
run("flatten", " (if -flatten)");