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Added "equiv_add -try" mode

This commit is contained in:
Clifford Wolf 2016-01-06 13:54:00 +01:00
parent 1d62f8710f
commit 1f8c47fb47
1 changed files with 33 additions and 6 deletions
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39
passes/equiv/equiv_add.cc
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@ -29,34 +29,51 @@ struct EquivAddPass : public Pass {
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" equiv_add gold_sig gate_sig\n");
log(" equiv_add [-try] gold_sig gate_sig\n");
log("\n");
log("This command adds an $equiv cell for the specified signals.\n");
log("\n");
log("\n");
log(" equiv_add -cell gold_cell gate_cell\n");
log(" equiv_add [-try] -cell gold_cell gate_cell\n");
log("\n");
log("This command adds $equiv cells for the ports of the specified cells.\n");
log("\n");
}
virtual void execute(std::vector<std::string> args, Design *design)
{
bool try_mode = false;
if (design->selected_active_module.empty())
log_cmd_error("This command must be executed in module context!\n");
Module *module = design->module(design->selected_active_module);
log_assert(module != nullptr);
if (GetSize(args) > 1 && args[1] == "-try") {
args.erase(args.begin() + 1);
try_mode = true;
}
if (GetSize(args) == 4 && args[1] == "-cell")
{
Cell *gold_cell = module->cell(RTLIL::escape_id(args[2]));
Cell *gate_cell = module->cell(RTLIL::escape_id(args[3]));
if (gold_cell == nullptr)
if (gold_cell == nullptr) {
if (try_mode) {
log_warning("Can't find gold cell '%s'.\n", args[2].c_str());
return;
}
log_cmd_error("Can't find gold cell '%s'.\n", args[2].c_str());
}
if (gate_cell == nullptr)
if (gate_cell == nullptr) {
if (try_mode) {
log_warning("Can't find gate cell '%s'.\n", args[3].c_str());
return;
}
log_cmd_error("Can't find gate cell '%s'.\n", args[3].c_str());
}
for (auto conn : gold_cell->connections())
{
@ -107,11 +124,21 @@ struct EquivAddPass : public Pass {
SigSpec gold_signal, gate_signal;
if (!SigSpec::parse(gate_signal, module, args[2]))
if (!SigSpec::parse(gate_signal, module, args[2])) {
if (try_mode) {
log_warning("Error in gate signal: %s\n", args[2].c_str());
return;
}
log_cmd_error("Error in gate signal: %s\n", args[2].c_str());
}
if (!SigSpec::parse_rhs(gate_signal, gold_signal, module, args[1]))
if (!SigSpec::parse_rhs(gate_signal, gold_signal, module, args[1])) {
if (try_mode) {
log_warning("Error in gold signal: %s\n", args[1].c_str());
return;
}
log_cmd_error("Error in gold signal: %s\n", args[1].c_str());
}
log_assert(GetSize(gold_signal) == GetSize(gate_signal));
SigSpec equiv_signal = module->addWire(NEW_ID, GetSize(gold_signal));