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Merge pull request #1258 from YosysHQ/eddie/cleanup

Cleanup a few barnacles across codebase
This commit is contained in:
Clifford Wolf 2019-08-10 09:52:14 +02:00 committed by GitHub
commit f54bf1631f
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GPG key ID: 4AEE18F83AFDEB23
69 changed files with 405 additions and 414 deletions

View file

@ -49,7 +49,7 @@ struct ExclusiveDatabase
}
else if (cell->type == "$logic_not") {
nonconst_sig = sigmap(cell->getPort("\\A"));
const_sig = Const(RTLIL::S0, GetSize(nonconst_sig));
const_sig = Const(State::S0, GetSize(nonconst_sig));
y_port = sigmap(cell->getPort("\\Y"));
}
else if (cell->type == "$reduce_or") {

View file

@ -222,10 +222,10 @@ bool compare_signals(RTLIL::SigBit &s1, RTLIL::SigBit &s2, SigPool &regs, SigPoo
bool check_public_name(RTLIL::IdString id)
{
const std::string &id_str = id.str();
if (id_str[0] == '$')
if (id.begins_with("$"))
return false;
if (id_str.substr(0, 2) == "\\_" && (id_str[id_str.size()-1] == '_' || id_str.find("_[") != std::string::npos))
const std::string &id_str = id.str();
if (id.begins_with("\\_") && (id.ends_with("_") || id_str.find("_[") != std::string::npos))
return false;
if (id_str.find(".$") != std::string::npos)
return false;

View file

@ -367,10 +367,11 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
for (auto cell : module->cells())
if (design->selected(module, cell) && cell->type[0] == '$') {
if ((cell->type == "$_NOT_" || cell->type == "$not" || cell->type == "$logic_not") &&
if (cell->type.in("$_NOT_", "$not", "$logic_not") &&
cell->getPort("\\A").size() == 1 && cell->getPort("\\Y").size() == 1)
invert_map[assign_map(cell->getPort("\\Y"))] = assign_map(cell->getPort("\\A"));
if ((cell->type == "$mux" || cell->type == "$_MUX_") && cell->getPort("\\A") == SigSpec(State::S1) && cell->getPort("\\B") == SigSpec(State::S0))
if (cell->type.in("$mux", "$_MUX_") &&
cell->getPort("\\A") == SigSpec(State::S1) && cell->getPort("\\B") == SigSpec(State::S0))
invert_map[assign_map(cell->getPort("\\Y"))] = assign_map(cell->getPort("\\S"));
if (ct_combinational.cell_known(cell->type))
for (auto &conn : cell->connections()) {
@ -512,13 +513,11 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
if (do_fine)
{
if (cell->type == "$not" || cell->type == "$pos" ||
cell->type == "$and" || cell->type == "$or" || cell->type == "$xor" || cell->type == "$xnor")
if (cell->type.in("$not", "$pos", "$and", "$or", "$xor", "$xnor"))
if (group_cell_inputs(module, cell, true, assign_map))
goto next_cell;
if (cell->type == "$logic_not" || cell->type == "$logic_and" || cell->type == "$logic_or" ||
cell->type == "$reduce_or" || cell->type == "$reduce_and" || cell->type == "$reduce_bool")
if (cell->type.in("$logic_not", "$logic_and", "$logic_or", "$reduce_or", "$reduce_and", "$reduce_bool"))
{
SigBit neutral_bit = cell->type == "$reduce_and" ? State::S1 : State::S0;
@ -541,7 +540,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if (cell->type == "$logic_and" || cell->type == "$logic_or")
if (cell->type.in("$logic_and", "$logic_or"))
{
SigBit neutral_bit = State::S0;
@ -590,7 +589,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if (cell->type == "$logic_not" || cell->type == "$logic_and" || cell->type == "$logic_or" || cell->type == "$reduce_or" || cell->type == "$reduce_bool")
if (cell->type.in("$logic_not", "$logic_and", "$logic_or", "$reduce_or", "$reduce_bool"))
{
RTLIL::SigSpec sig_a = assign_map(cell->getPort("\\A"));
@ -616,7 +615,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if (cell->type == "$logic_and" || cell->type == "$logic_or")
if (cell->type.in("$logic_and", "$logic_or"))
{
RTLIL::SigSpec sig_b = assign_map(cell->getPort("\\B"));
@ -668,16 +667,13 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if (cell->type == "$reduce_xor" || cell->type == "$reduce_xnor" || cell->type == "$shift" || cell->type == "$shiftx" ||
cell->type == "$shl" || cell->type == "$shr" || cell->type == "$sshl" || cell->type == "$sshr" ||
cell->type == "$lt" || cell->type == "$le" || cell->type == "$ge" || cell->type == "$gt" ||
cell->type == "$neg" || cell->type == "$add" || cell->type == "$sub" ||
cell->type == "$mul" || cell->type == "$div" || cell->type == "$mod" || cell->type == "$pow")
if (cell->type.in("$reduce_xor", "$reduce_xnor", "$shift", "$shiftx", "$shl", "$shr", "$sshl", "$sshr",
"$lt", "$le", "$ge", "$gt", "$neg", "$add", "$sub", "$mul", "$div", "$mod", "$pow"))
{
RTLIL::SigSpec sig_a = assign_map(cell->getPort("\\A"));
RTLIL::SigSpec sig_b = cell->hasPort("\\B") ? assign_map(cell->getPort("\\B")) : RTLIL::SigSpec();
if (cell->type == "$shl" || cell->type == "$shr" || cell->type == "$sshl" || cell->type == "$sshr" || cell->type == "$shift" || cell->type == "$shiftx")
if (cell->type.in("$shl", "$shr", "$sshl", "$sshr", "$shift", "$shiftx"))
sig_a = RTLIL::SigSpec();
for (auto &bit : sig_a.to_sigbit_vector())
@ -692,8 +688,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
found_the_x_bit:
cover_list("opt.opt_expr.xbit", "$reduce_xor", "$reduce_xnor", "$shl", "$shr", "$sshl", "$sshr", "$shift", "$shiftx",
"$lt", "$le", "$ge", "$gt", "$neg", "$add", "$sub", "$mul", "$div", "$mod", "$pow", cell->type.str());
if (cell->type == "$reduce_xor" || cell->type == "$reduce_xnor" ||
cell->type == "$lt" || cell->type == "$le" || cell->type == "$ge" || cell->type == "$gt")
if (cell->type.in("$reduce_xor", "$reduce_xnor", "$lt", "$le", "$ge", "$gt"))
replace_cell(assign_map, module, cell, "x-bit in input", "\\Y", RTLIL::State::Sx);
else
replace_cell(assign_map, module, cell, "x-bit in input", "\\Y", RTLIL::SigSpec(RTLIL::State::Sx, cell->getPort("\\Y").size()));
@ -701,14 +696,14 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if ((cell->type == "$_NOT_" || cell->type == "$not" || cell->type == "$logic_not") && cell->getPort("\\Y").size() == 1 &&
if (cell->type.in("$_NOT_", "$not", "$logic_not") && cell->getPort("\\Y").size() == 1 &&
invert_map.count(assign_map(cell->getPort("\\A"))) != 0) {
cover_list("opt.opt_expr.invert.double", "$_NOT_", "$not", "$logic_not", cell->type.str());
replace_cell(assign_map, module, cell, "double_invert", "\\Y", invert_map.at(assign_map(cell->getPort("\\A"))));
goto next_cell;
}
if ((cell->type == "$_MUX_" || cell->type == "$mux") && invert_map.count(assign_map(cell->getPort("\\S"))) != 0) {
if (cell->type.in("$_MUX_", "$mux") && invert_map.count(assign_map(cell->getPort("\\S"))) != 0) {
cover_list("opt.opt_expr.invert.muxsel", "$_MUX_", "$mux", cell->type.str());
log_debug("Optimizing away select inverter for %s cell `%s' in module `%s'.\n", log_id(cell->type), log_id(cell), log_id(module));
RTLIL::SigSpec tmp = cell->getPort("\\A");
@ -811,7 +806,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if (cell->type == "$_TBUF_" || cell->type == "$tribuf") {
if (cell->type.in("$_TBUF_", "$tribuf")) {
RTLIL::SigSpec input = cell->getPort(cell->type == "$_TBUF_" ? "\\E" : "\\EN");
RTLIL::SigSpec a = cell->getPort("\\A");
assign_map.apply(input);
@ -828,7 +823,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if (cell->type == "$eq" || cell->type == "$ne" || cell->type == "$eqx" || cell->type == "$nex")
if (cell->type.in("$eq", "$ne", "$eqx", "$nex"))
{
RTLIL::SigSpec a = cell->getPort("\\A");
RTLIL::SigSpec b = cell->getPort("\\B");
@ -845,7 +840,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
for (int i = 0; i < GetSize(a); i++) {
if (a[i].wire == NULL && b[i].wire == NULL && a[i] != b[i] && a[i].data <= RTLIL::State::S1 && b[i].data <= RTLIL::State::S1) {
cover_list("opt.opt_expr.eqneq.isneq", "$eq", "$ne", "$eqx", "$nex", cell->type.str());
RTLIL::SigSpec new_y = RTLIL::SigSpec((cell->type == "$eq" || cell->type == "$eqx") ? RTLIL::State::S0 : RTLIL::State::S1);
RTLIL::SigSpec new_y = RTLIL::SigSpec(cell->type.in("$eq", "$eqx") ? RTLIL::State::S0 : RTLIL::State::S1);
new_y.extend_u0(cell->parameters["\\Y_WIDTH"].as_int(), false);
replace_cell(assign_map, module, cell, "isneq", "\\Y", new_y);
goto next_cell;
@ -858,7 +853,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
if (new_a.size() == 0) {
cover_list("opt.opt_expr.eqneq.empty", "$eq", "$ne", "$eqx", "$nex", cell->type.str());
RTLIL::SigSpec new_y = RTLIL::SigSpec((cell->type == "$eq" || cell->type == "$eqx") ? RTLIL::State::S1 : RTLIL::State::S0);
RTLIL::SigSpec new_y = RTLIL::SigSpec(cell->type.in("$eq", "$eqx") ? RTLIL::State::S1 : RTLIL::State::S0);
new_y.extend_u0(cell->parameters["\\Y_WIDTH"].as_int(), false);
replace_cell(assign_map, module, cell, "empty", "\\Y", new_y);
goto next_cell;
@ -873,7 +868,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if ((cell->type == "$eq" || cell->type == "$ne") && cell->parameters["\\Y_WIDTH"].as_int() == 1 &&
if (cell->type.in("$eq", "$ne") && cell->parameters["\\Y_WIDTH"].as_int() == 1 &&
cell->parameters["\\A_WIDTH"].as_int() == 1 && cell->parameters["\\B_WIDTH"].as_int() == 1)
{
RTLIL::SigSpec a = assign_map(cell->getPort("\\A"));
@ -903,7 +898,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if ((cell->type == "$eq" || cell->type == "$ne") &&
if (cell->type.in("$eq", "$ne") &&
(assign_map(cell->getPort("\\A")).is_fully_zero() || assign_map(cell->getPort("\\B")).is_fully_zero()))
{
cover_list("opt.opt_expr.eqneq.cmpzero", "$eq", "$ne", cell->type.str());
@ -962,7 +957,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
bool identity_wrt_b = false;
bool arith_inverse = false;
if (cell->type == "$add" || cell->type == "$sub" || cell->type == "$or" || cell->type == "$xor")
if (cell->type.in("$add", "$sub", "$or", "$xor"))
{
RTLIL::SigSpec a = assign_map(cell->getPort("\\A"));
RTLIL::SigSpec b = assign_map(cell->getPort("\\B"));
@ -974,7 +969,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
identity_wrt_a = true;
}
if (cell->type == "$shl" || cell->type == "$shr" || cell->type == "$sshl" || cell->type == "$sshr" || cell->type == "$shift" || cell->type == "$shiftx")
if (cell->type.in("$shl", "$shr", "$sshl", "$sshr", "$shift", "$shiftx"))
{
RTLIL::SigSpec b = assign_map(cell->getPort("\\B"));
@ -1029,15 +1024,15 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
}
if (mux_bool && (cell->type == "$mux" || cell->type == "$_MUX_") &&
cell->getPort("\\A") == RTLIL::SigSpec(0, 1) && cell->getPort("\\B") == RTLIL::SigSpec(1, 1)) {
if (mux_bool && cell->type.in("$mux", "$_MUX_") &&
cell->getPort("\\A") == State::S0 && cell->getPort("\\B") == State::S1) {
cover_list("opt.opt_expr.mux_bool", "$mux", "$_MUX_", cell->type.str());
replace_cell(assign_map, module, cell, "mux_bool", "\\Y", cell->getPort("\\S"));
goto next_cell;
}
if (mux_bool && (cell->type == "$mux" || cell->type == "$_MUX_") &&
cell->getPort("\\A") == RTLIL::SigSpec(1, 1) && cell->getPort("\\B") == RTLIL::SigSpec(0, 1)) {
if (mux_bool && cell->type.in("$mux", "$_MUX_") &&
cell->getPort("\\A") == State::S1 && cell->getPort("\\B") == State::S0) {
cover_list("opt.opt_expr.mux_invert", "$mux", "$_MUX_", cell->type.str());
log_debug("Replacing %s cell `%s' in module `%s' with inverter.\n", log_id(cell->type), log_id(cell), log_id(module));
cell->setPort("\\A", cell->getPort("\\S"));
@ -1056,7 +1051,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
goto next_cell;
}
if (consume_x && mux_bool && (cell->type == "$mux" || cell->type == "$_MUX_") && cell->getPort("\\A") == RTLIL::SigSpec(0, 1)) {
if (consume_x && mux_bool && cell->type.in("$mux", "$_MUX_") && cell->getPort("\\A") == State::S0) {
cover_list("opt.opt_expr.mux_and", "$mux", "$_MUX_", cell->type.str());
log_debug("Replacing %s cell `%s' in module `%s' with and-gate.\n", log_id(cell->type), log_id(cell), log_id(module));
cell->setPort("\\A", cell->getPort("\\S"));
@ -1076,7 +1071,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
goto next_cell;
}
if (consume_x && mux_bool && (cell->type == "$mux" || cell->type == "$_MUX_") && cell->getPort("\\B") == RTLIL::SigSpec(1, 1)) {
if (consume_x && mux_bool && cell->type.in("$mux", "$_MUX_") && cell->getPort("\\B") == State::S1) {
cover_list("opt.opt_expr.mux_or", "$mux", "$_MUX_", cell->type.str());
log_debug("Replacing %s cell `%s' in module `%s' with or-gate.\n", log_id(cell->type), log_id(cell), log_id(module));
cell->setPort("\\B", cell->getPort("\\S"));
@ -1096,7 +1091,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
goto next_cell;
}
if (mux_undef && (cell->type == "$mux" || cell->type == "$pmux")) {
if (mux_undef && cell->type.in("$mux", "$pmux")) {
RTLIL::SigSpec new_a, new_b, new_s;
int width = cell->getPort("\\A").size();
if ((cell->getPort("\\A").is_fully_undef() && cell->getPort("\\B").is_fully_undef()) ||
@ -1438,7 +1433,7 @@ void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module, bool cons
}
// simplify comparisons
if (do_fine && (cell->type == "$lt" || cell->type == "$ge" || cell->type == "$gt" || cell->type == "$le"))
if (do_fine && cell->type.in("$lt", "$ge", "$gt", "$le"))
{
IdString cmp_type = cell->type;
SigSpec var_sig = cell->getPort("\\A");

View file

@ -94,8 +94,8 @@ struct OptMergeWorker
const dict<RTLIL::IdString, RTLIL::SigSpec> *conn = &cell->connections();
dict<RTLIL::IdString, RTLIL::SigSpec> alt_conn;
if (cell->type == "$and" || cell->type == "$or" || cell->type == "$xor" || cell->type == "$xnor" || cell->type == "$add" || cell->type == "$mul" ||
cell->type == "$logic_and" || cell->type == "$logic_or" || cell->type == "$_AND_" || cell->type == "$_OR_" || cell->type == "$_XOR_") {
if (cell->type.in("$and", "$or", "$xor", "$xnor", "$add", "$mul",
"$logic_and", "$logic_or", "$_AND_", "$_OR_", "$_XOR_")) {
alt_conn = *conn;
if (assign_map(alt_conn.at("\\A")) < assign_map(alt_conn.at("\\B"))) {
alt_conn["\\A"] = conn->at("\\B");
@ -103,13 +103,13 @@ struct OptMergeWorker
}
conn = &alt_conn;
} else
if (cell->type == "$reduce_xor" || cell->type == "$reduce_xnor") {
if (cell->type.in("$reduce_xor", "$reduce_xnor")) {
alt_conn = *conn;
assign_map.apply(alt_conn.at("\\A"));
alt_conn.at("\\A").sort();
conn = &alt_conn;
} else
if (cell->type == "$reduce_and" || cell->type == "$reduce_or" || cell->type == "$reduce_bool") {
if (cell->type.in("$reduce_and", "$reduce_or", "$reduce_bool")) {
alt_conn = *conn;
assign_map.apply(alt_conn.at("\\A"));
alt_conn.at("\\A").sort_and_unify();
@ -222,7 +222,7 @@ struct OptMergeWorker
return true;
}
if (cell1->type.substr(0, 1) == "$" && conn1.count("\\Q") != 0) {
if (cell1->type.begins_with("$") && conn1.count("\\Q") != 0) {
std::vector<RTLIL::SigBit> q1 = dff_init_map(cell1->getPort("\\Q")).to_sigbit_vector();
std::vector<RTLIL::SigBit> q2 = dff_init_map(cell2->getPort("\\Q")).to_sigbit_vector();
for (size_t i = 0; i < q1.size(); i++)

View file

@ -84,7 +84,7 @@ struct OptMuxtreeWorker
// .const_deactivated
for (auto cell : module->cells())
{
if (cell->type == "$mux" || cell->type == "$pmux")
if (cell->type.in("$mux", "$pmux"))
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_b = cell->getPort("\\B");

View file

@ -63,15 +63,15 @@ bool handle_dffsr(RTLIL::Module *mod, RTLIL::Cell *cell)
log_assert(GetSize(sig_set) == GetSize(sig_clr));
if (cell->type.substr(0,8) == "$_DFFSR_") {
if (cell->type.begins_with("$_DFFSR_")) {
pol_set = cell->type[9] == 'P' ? State::S1 : State::S0;
pol_clr = cell->type[10] == 'P' ? State::S1 : State::S0;
} else
if (cell->type.substr(0,11) == "$_DLATCHSR_") {
if (cell->type.begins_with("$_DLATCHSR_")) {
pol_set = cell->type[12] == 'P' ? State::S1 : State::S0;
pol_clr = cell->type[13] == 'P' ? State::S1 : State::S0;
} else
if (cell->type == "$dffsr" || cell->type == "$dlatchsr") {
if (cell->type.in("$dffsr", "$dlatchsr")) {
pol_set = cell->parameters["\\SET_POLARITY"].as_bool() ? State::S1 : State::S0;
pol_clr = cell->parameters["\\CLR_POLARITY"].as_bool() ? State::S1 : State::S0;
} else
@ -137,7 +137,7 @@ bool handle_dffsr(RTLIL::Module *mod, RTLIL::Cell *cell)
return true;
}
if (cell->type == "$dffsr" || cell->type == "$dlatchsr")
if (cell->type.in("$dffsr", "$dlatchsr"))
{
cell->setParam("\\WIDTH", GetSize(sig_d));
cell->setPort("\\SET", sig_set);
@ -198,9 +198,9 @@ bool handle_dffsr(RTLIL::Module *mod, RTLIL::Cell *cell)
{
IdString new_type;
if (cell->type.substr(0,8) == "$_DFFSR_")
if (cell->type.begins_with("$_DFFSR_"))
new_type = stringf("$_DFF_%c_", cell->type[8]);
else if (cell->type.substr(0,11) == "$_DLATCHSR_")
else if (cell->type.begins_with("$_DLATCHSR_"))
new_type = stringf("$_DLATCH_%c_", cell->type[11]);
else
log_abort();
@ -278,7 +278,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
sig_c = dff->getPort("\\C");
val_cp = RTLIL::Const(dff->type == "$_DFF_P_", 1);
}
else if (dff->type.substr(0,6) == "$_DFF_" && dff->type.substr(9) == "_" &&
else if (dff->type.begins_with("$_DFF_") && dff->type.compare(9, 1, "_") == 0 &&
(dff->type[6] == 'N' || dff->type[6] == 'P') &&
(dff->type[7] == 'N' || dff->type[7] == 'P') &&
(dff->type[8] == '0' || dff->type[8] == '1')) {
@ -290,7 +290,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
val_rp = RTLIL::Const(dff->type[7] == 'P', 1);
val_rv = RTLIL::Const(dff->type[8] == '1', 1);
}
else if (dff->type.substr(0,7) == "$_DFFE_" && dff->type.substr(9) == "_" &&
else if (dff->type.begins_with("$_DFFE_") && dff->type.compare(9, 1, "_") == 0 &&
(dff->type[7] == 'N' || dff->type[7] == 'P') &&
(dff->type[8] == 'N' || dff->type[8] == 'P')) {
sig_d = dff->getPort("\\D");
@ -428,7 +428,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
return true;
}
log_assert(dff->type.substr(0,6) == "$_DFF_");
log_assert(dff->type.begins_with("$_DFF_"));
dff->type = stringf("$_DFF_%c_", + dff->type[6]);
dff->unsetPort("\\R");
}
@ -452,7 +452,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
return true;
}
log_assert(dff->type.substr(0,7) == "$_DFFE_");
log_assert(dff->type.begins_with("$_DFFE_"));
dff->type = stringf("$_DFF_%c_", + dff->type[7]);
dff->unsetPort("\\E");
}
@ -624,7 +624,7 @@ struct OptRmdffPass : public Pass {
}
}
if (cell->type == "$mux" || cell->type == "$pmux") {
if (cell->type.in("$mux", "$pmux")) {
if (cell->getPort("\\A").size() == cell->getPort("\\B").size())
mux_drivers.insert(assign_map(cell->getPort("\\Y")), cell);
continue;

View file

@ -376,13 +376,13 @@ struct ShareWorker
continue;
}
if (cell->type == "$mul" || cell->type == "$div" || cell->type == "$mod") {
if (cell->type.in("$mul", "$div", "$mod")) {
if (config.opt_aggressive || cell->parameters.at("\\Y_WIDTH").as_int() >= 4)
shareable_cells.insert(cell);
continue;
}
if (cell->type == "$shl" || cell->type == "$shr" || cell->type == "$sshl" || cell->type == "$sshr") {
if (cell->type.in("$shl", "$shr", "$sshl", "$sshr")) {
if (config.opt_aggressive || cell->parameters.at("\\Y_WIDTH").as_int() >= 8)
shareable_cells.insert(cell);
continue;