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techmap, flatten: remove dead options. 

After splitting the passes, some options can never be activated,
and most conditions involving them become dead. Remove them, and also
all of the newly dead code.
This commit is contained in:
whitequark 2020-06-03 00:12:54 +00:00
parent 6ac54a74fe
commit 76c4ee4ea5
2 changed files with 217 additions and 933 deletions
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747
passes/techmap/flatten.cc
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@ -20,21 +20,11 @@
#include "kernel/yosys.h"
#include "kernel/utils.h"
#include "kernel/sigtools.h"
#include "libs/sha1/sha1.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "simplemap.h"
YOSYS_NAMESPACE_BEGIN
// see maccmap.cc
extern void maccmap(RTLIL::Module *module, RTLIL::Cell *cell, bool unmap = false);
YOSYS_NAMESPACE_END
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
@ -61,10 +51,7 @@ void apply_prefix(IdString prefix, RTLIL::SigSpec &sig, RTLIL::Module *module)
struct TechmapWorker
{
dict<IdString, void(*)(RTLIL::Module*, RTLIL::Cell*)> simplemap_mappers;
dict<std::pair<IdString, dict<IdString, RTLIL::Const>>, RTLIL::Module*> techmap_cache;
dict<RTLIL::Module*, bool> techmap_do_cache;
pool<RTLIL::Module*> module_queue;
dict<Module*, SigMap> sigmaps;
pool<IdString> flatten_do_list;
@ -73,83 +60,8 @@ struct TechmapWorker
pool<string> log_msg_cache;
struct TechmapWireData {
RTLIL::Wire *wire;
RTLIL::SigSpec value;
};
typedef dict<IdString, std::vector<TechmapWireData>> TechmapWires;
bool extern_mode = false;
bool assert_mode = false;
bool flatten_mode = false;
bool recursive_mode = false;
bool autoproc_mode = false;
bool ignore_wb = false;
std::string constmap_tpl_name(SigMap &sigmap, RTLIL::Module *tpl, RTLIL::Cell *cell, bool verbose)
{
std::string constmap_info;
dict<RTLIL::SigBit, std::pair<IdString, int>> connbits_map;
for (auto &conn : cell->connections())
for (int i = 0; i < GetSize(conn.second); i++) {
RTLIL::SigBit bit = sigmap(conn.second[i]);
if (bit.wire == nullptr) {
if (verbose)
log(" Constant input on bit %d of port %s: %s\n", i, log_id(conn.first), log_signal(bit));
constmap_info += stringf("|%s %d %d", log_id(conn.first), i, bit.data);
} else if (connbits_map.count(bit)) {
if (verbose)
log(" Bit %d of port %s and bit %d of port %s are connected.\n", i, log_id(conn.first),
connbits_map.at(bit).second, log_id(connbits_map.at(bit).first));
constmap_info += stringf("|%s %d %s %d", log_id(conn.first), i,
log_id(connbits_map.at(bit).first), connbits_map.at(bit).second);
} else {
connbits_map.emplace(bit, std::make_pair(conn.first, i));
constmap_info += stringf("|%s %d", log_id(conn.first), i);
}
}
return stringf("$paramod$constmap:%s%s", sha1(constmap_info).c_str(), tpl->name.c_str());
}
TechmapWires techmap_find_special_wires(RTLIL::Module *module)
{
TechmapWires result;
if (module == nullptr)
return result;
for (auto w : module->wires()) {
const char *p = w->name.c_str();
if (*p == '$')
continue;
const char *q = strrchr(p+1, '.');
if (q)
p = q;
if (!strncmp(p, "\\_TECHMAP_", 10)) {
TechmapWireData record;
record.wire = w;
record.value = w;
result[p].push_back(record);
w->set_bool_attribute(ID::keep);
w->set_bool_attribute(ID::_techmap_special_);
}
}
if (!result.empty()) {
SigMap sigmap(module);
for (auto &it1 : result)
for (auto &it2 : it1.second)
sigmap.apply(it2.value);
}
return result;
}
void techmap_module_worker(RTLIL::Design *design, RTLIL::Module *module, RTLIL::Cell *cell, RTLIL::Module *tpl)
{
if (tpl->processes.size() != 0) {
@ -157,25 +69,11 @@ struct TechmapWorker
for (auto &it : tpl->processes)
log(" %s",log_id(it.first));
log("\n");
if (autoproc_mode) {
Pass::call_on_module(tpl->design, tpl, "proc");
log_assert(GetSize(tpl->processes) == 0);
} else
log_error("Technology map yielded processes -> this is not supported (use -autoproc to run 'proc' automatically).\n");
log_error("Technology map yielded processes -> this is not supported.\n");
}
std::string orig_cell_name;
pool<string> extra_src_attrs = cell->get_strpool_attribute(ID::src);
orig_cell_name = cell->name.str();
if (!flatten_mode) {
for (auto tpl_cell : tpl->cells())
if (tpl_cell->name == ID::_TECHMAP_REPLACE_) {
module->rename(cell, stringf("$techmap%d", autoidx++) + cell->name.str());
break;
}
}
dict<IdString, IdString> memory_renames;
for (auto &it : tpl->memories) {
@ -196,7 +94,6 @@ struct TechmapWorker
dict<IdString, IdString> positional_ports;
dict<Wire*, IdString> temp_renamed_wires;
pool<SigBit> autopurge_tpl_bits;
for (auto tpl_w : tpl->wires())
{
@ -204,24 +101,12 @@ struct TechmapWorker
{
IdString posportname = stringf("$%d", tpl_w->port_id);
positional_ports.emplace(posportname, tpl_w->name);
if (!flatten_mode && tpl_w->get_bool_attribute(ID::techmap_autopurge) &&
(!cell->hasPort(tpl_w->name) || !GetSize(cell->getPort(tpl_w->name))) &&
(!cell->hasPort(posportname) || !GetSize(cell->getPort(posportname))))
{
if (sigmaps.count(tpl) == 0)
sigmaps[tpl].set(tpl);
for (auto bit : sigmaps.at(tpl)(tpl_w))
if (bit.wire != nullptr)
autopurge_tpl_bits.insert(bit);
}
}
IdString w_name = tpl_w->name;
apply_prefix(cell->name, w_name);
RTLIL::Wire *w = module->wire(w_name);
if (w != nullptr) {
if (!flatten_mode || !w->get_bool_attribute(ID::hierconn)) {
if (!w->get_bool_attribute(ID::hierconn)) {
temp_renamed_wires[w] = w->name;
module->rename(w, NEW_ID);
w = nullptr;
@ -239,20 +124,10 @@ struct TechmapWorker
w->port_input = false;
w->port_output = false;
w->port_id = 0;
if (!flatten_mode)
w->attributes.erase(ID::techmap_autopurge);
if (tpl_w->get_bool_attribute(ID::_techmap_special_))
w->attributes.clear();
if (w->attributes.count(ID::src))
w->add_strpool_attribute(ID::src, extra_src_attrs);
}
design->select(module, w);
if (tpl_w->name.begins_with("\\_TECHMAP_REPLACE_.")) {
IdString replace_name = stringf("%s%s", orig_cell_name.c_str(), tpl_w->name.c_str() + strlen("\\_TECHMAP_REPLACE_"));
Wire *replace_w = module->addWire(replace_name, tpl_w);
module->connect(replace_w, w);
}
}
SigMap tpl_sigmap(tpl);
@ -284,20 +159,16 @@ struct TechmapWorker
continue;
RTLIL::Wire *w = tpl->wire(portname);
RTLIL::SigSig c, extra_connect;
RTLIL::SigSig c;
if (w->port_output && !w->port_input) {
c.first = it.second;
c.second = RTLIL::SigSpec(w);
apply_prefix(cell->name, c.second, module);
extra_connect.first = c.second;
extra_connect.second = c.first;
} else if (!w->port_output && w->port_input) {
c.first = RTLIL::SigSpec(w);
c.second = it.second;
apply_prefix(cell->name, c.first, module);
extra_connect.first = c.first;
extra_connect.second = c.second;
} else {
SigSpec sig_tpl = w, sig_tpl_pf = w, sig_mod = it.second;
apply_prefix(cell->name, sig_tpl_pf, module);
@ -310,8 +181,6 @@ struct TechmapWorker
c.second.append(sig_mod[i]);
}
}
extra_connect.first = sig_tpl_pf;
extra_connect.second = sig_mod;
}
if (c.second.size() > c.first.size())
@ -322,95 +191,34 @@ struct TechmapWorker
log_assert(c.first.size() == c.second.size());
if (flatten_mode)
{
// more conservative approach:
// connect internal and external wires
// connect internal and external wires
if (sigmaps.count(module) == 0)
sigmaps[module].set(module);
if (sigmaps.count(module) == 0)
sigmaps[module].set(module);
if (sigmaps.at(module)(c.first).has_const())
log_error("Mismatch in directionality for cell port %s.%s.%s: %s <= %s\n",
log_id(module), log_id(cell), log_id(it.first), log_signal(c.first), log_signal(c.second));
if (sigmaps.at(module)(c.first).has_const())
log_error("Mismatch in directionality for cell port %s.%s.%s: %s <= %s\n",
log_id(module), log_id(cell), log_id(it.first), log_signal(c.first), log_signal(c.second));
module->connect(c);
}
else
{
// approach that yields nicer outputs:
// replace internal wires that are connected to external wires
if (w->port_output && !w->port_input) {
port_signal_map.add(c.second, c.first);
} else
if (!w->port_output && w->port_input) {
port_signal_map.add(c.first, c.second);
} else {
module->connect(c);
extra_connect = SigSig();
}
for (auto &attr : w->attributes) {
if (attr.first == ID::src)
continue;
auto lhs = GetSize(extra_connect.first);
auto rhs = GetSize(extra_connect.second);
if (lhs > rhs)
extra_connect.first.remove(rhs, lhs-rhs);
else if (rhs > lhs)
extra_connect.second.remove(lhs, rhs-lhs);
module->connect(extra_connect);
break;
}
}
module->connect(c);
}
for (auto tpl_cell : tpl->cells())
{
IdString c_name = tpl_cell->name;
bool techmap_replace_cell = (!flatten_mode) && (c_name == ID::_TECHMAP_REPLACE_);
if (techmap_replace_cell)
c_name = orig_cell_name;
else if (tpl_cell->name.begins_with("\\_TECHMAP_REPLACE_."))
c_name = stringf("%s%s", orig_cell_name.c_str(), c_name.c_str() + strlen("\\_TECHMAP_REPLACE_"));
else
apply_prefix(cell->name, c_name);
apply_prefix(cell->name, c_name);
RTLIL::Cell *c = module->addCell(c_name, tpl_cell);
design->select(module, c);
if (!flatten_mode && c->type.begins_with("\\$"))
c->type = c->type.substr(1);
vector<IdString> autopurge_ports;
for (auto &conn : c->connections())
{
bool autopurge = false;
if (!autopurge_tpl_bits.empty()) {
autopurge = GetSize(conn.second) != 0;
for (auto &bit : sigmaps.at(tpl)(conn.second))
if (!autopurge_tpl_bits.count(bit)) {
autopurge = false;
break;
}
}
if (autopurge) {
autopurge_ports.push_back(conn.first);
} else {
RTLIL::SigSpec new_conn = conn.second;
apply_prefix(cell->name, new_conn, module);
port_signal_map.apply(new_conn);
c->setPort(conn.first, std::move(new_conn));
}
RTLIL::SigSpec new_conn = conn.second;
apply_prefix(cell->name, new_conn, module);
port_signal_map.apply(new_conn);
c->setPort(conn.first, std::move(new_conn));
}
for (auto &it2 : autopurge_ports)
c->unsetPort(it2);
if (c->type.in(ID($memrd), ID($memwr), ID($meminit))) {
IdString memid = c->getParam(ID::MEMID).decode_string();
log_assert(memory_renames.count(memid) != 0);
@ -425,11 +233,6 @@ struct TechmapWorker
if (c->attributes.count(ID::src))
c->add_strpool_attribute(ID::src, extra_src_attrs);
if (techmap_replace_cell)
for (auto attr : cell->attributes)
if (!c->attributes.count(attr.first))
c->attributes[attr.first] = attr.second;
}
for (auto &it : tpl->connections()) {
@ -468,18 +271,6 @@ struct TechmapWorker
SigMap sigmap(module);
dict<SigBit, State> init_bits;
pool<SigBit> remove_init_bits;
for (auto wire : module->wires()) {
if (wire->attributes.count(ID::init)) {
Const value = wire->attributes.at(ID::init);
for (int i = 0; i < min(GetSize(value), GetSize(wire)); i++)
if (value[i] != State::Sx)
init_bits[sigmap(SigBit(wire, i))] = value[i];
}
}
TopoSort<RTLIL::Cell*, IdString::compare_ptr_by_name<RTLIL::Cell>> cells;
dict<RTLIL::Cell*, pool<RTLIL::SigBit>> cell_to_inbit;
dict<RTLIL::SigBit, pool<RTLIL::Cell*>> outbit_to_cell;
@ -493,26 +284,21 @@ struct TechmapWorker
if (in_recursion && cell->type.begins_with("\\$"))
cell_type = cell_type.substr(1);
if (celltypeMap.count(cell_type) == 0) {
if (assert_mode && cell_type.back() != '_')
log_error("(ASSERT MODE) No matching template cell for type %s found.\n", log_id(cell_type));
if (celltypeMap.count(cell_type) == 0)
continue;
}
if (flatten_mode) {
bool keepit = cell->get_bool_attribute(ID::keep_hierarchy);
for (auto &tpl_name : celltypeMap.at(cell_type))
if (map->module(tpl_name)->get_bool_attribute(ID::keep_hierarchy))
keepit = true;
if (keepit) {
if (!flatten_keep_list[cell]) {
log("Keeping %s.%s (found keep_hierarchy property).\n", log_id(module), log_id(cell));
flatten_keep_list.insert(cell);
}
if (!flatten_done_list[cell->type])
flatten_do_list.insert(cell->type);
continue;
bool keepit = cell->get_bool_attribute(ID::keep_hierarchy);
for (auto &tpl_name : celltypeMap.at(cell_type))
if (map->module(tpl_name)->get_bool_attribute(ID::keep_hierarchy))
keepit = true;
if (keepit) {
if (!flatten_keep_list[cell]) {
log("Keeping %s.%s (found keep_hierarchy property).\n", log_id(module), log_id(cell));
flatten_keep_list.insert(cell);
}
if (!flatten_done_list[cell->type])
flatten_do_list.insert(cell->type);
continue;
}
for (auto &conn : cell->connections())
@ -548,7 +334,6 @@ struct TechmapWorker
{
log_assert(handled_cells.count(cell) == 0);
log_assert(cell == module->cell(cell->name));
bool mapped_cell = false;
std::string cell_type = cell->type.str();
@ -564,484 +349,41 @@ struct TechmapWorker
if (tpl->get_blackbox_attribute(ignore_wb))
continue;
if (!flatten_mode)
{
std::string extmapper_name;
if (tpl->get_bool_attribute(ID::techmap_simplemap))
extmapper_name = "simplemap";
if (tpl->get_bool_attribute(ID::techmap_maccmap))
extmapper_name = "maccmap";
if (tpl->attributes.count(ID::techmap_wrap))
extmapper_name = "wrap";
if (!extmapper_name.empty())
{
cell->type = cell_type;
if ((extern_mode && !in_recursion) || extmapper_name == "wrap")
{
std::string m_name = stringf("$extern:%s:%s", extmapper_name.c_str(), log_id(cell->type));
for (auto &c : cell->parameters)
m_name += stringf(":%s=%s", log_id(c.first), log_signal(c.second));
if (extmapper_name == "wrap")
m_name += ":" + sha1(tpl->attributes.at(ID::techmap_wrap).decode_string());
RTLIL::Design *extmapper_design = extern_mode && !in_recursion ? design : tpl->design;
RTLIL::Module *extmapper_module = extmapper_design->module(m_name);
if (extmapper_module == nullptr)
{
extmapper_module = extmapper_design->addModule(m_name);
RTLIL::Cell *extmapper_cell = extmapper_module->addCell(cell->type, cell);
extmapper_cell->set_src_attribute(cell->get_src_attribute());
int port_counter = 1;
for (auto &c : extmapper_cell->connections_) {
RTLIL::Wire *w = extmapper_module->addWire(c.first, GetSize(c.second));
if (w->name.in(ID::Y, ID::Q))
w->port_output = true;
else
w->port_input = true;
w->port_id = port_counter++;
c.second = w;
}
extmapper_module->fixup_ports();
extmapper_module->check();
if (extmapper_name == "simplemap") {
log("Creating %s with simplemap.\n", log_id(extmapper_module));
if (simplemap_mappers.count(extmapper_cell->type) == 0)
log_error("No simplemap mapper for cell type %s found!\n", log_id(extmapper_cell->type));
simplemap_mappers.at(extmapper_cell->type)(extmapper_module, extmapper_cell);
extmapper_module->remove(extmapper_cell);
}
if (extmapper_name == "maccmap") {
log("Creating %s with maccmap.\n", log_id(extmapper_module));
if (extmapper_cell->type != ID($macc))
log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(extmapper_cell->type));
maccmap(extmapper_module, extmapper_cell);
extmapper_module->remove(extmapper_cell);
}
if (extmapper_name == "wrap") {
std::string cmd_string = tpl->attributes.at(ID::techmap_wrap).decode_string();
log("Running \"%s\" on wrapper %s.\n", cmd_string.c_str(), log_id(extmapper_module));
mkdebug.on();
Pass::call_on_module(extmapper_design, extmapper_module, cmd_string);
log_continue = true;
}
}
cell->type = extmapper_module->name;
cell->parameters.clear();
if (!extern_mode || in_recursion) {
tpl = extmapper_module;
goto use_wrapper_tpl;
}
auto msg = stringf("Using extmapper %s for cells of type %s.", log_id(extmapper_module), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) to %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(extmapper_module));
}
else
{
auto msg = stringf("Using extmapper %s for cells of type %s.", extmapper_name.c_str(), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) with %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), extmapper_name.c_str());
if (extmapper_name == "simplemap") {
if (simplemap_mappers.count(cell->type) == 0)
log_error("No simplemap mapper for cell type %s found!\n", log_id(cell->type));
simplemap_mappers.at(cell->type)(module, cell);
}
if (extmapper_name == "maccmap") {
if (cell->type != ID($macc))
log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(cell->type));
maccmap(module, cell);
}
module->remove(cell);
cell = nullptr;
}
did_something = true;
mapped_cell = true;
break;
}
for (auto &conn : cell->connections()) {
if (conn.first.begins_with("$"))
continue;
if (tpl->wire(conn.first) != nullptr && tpl->wire(conn.first)->port_id > 0)
continue;
if (!conn.second.is_fully_const() || parameters.count(conn.first) > 0 || tpl->avail_parameters.count(conn.first) == 0)
goto next_tpl;
parameters[conn.first] = conn.second.as_const();
}
if (0) {
next_tpl:
continue;
}
if (tpl->avail_parameters.count(ID::_TECHMAP_CELLTYPE_) != 0)
parameters.emplace(ID::_TECHMAP_CELLTYPE_, RTLIL::unescape_id(cell->type));
for (auto &conn : cell->connections()) {
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONSTMSK_%s_", log_id(conn.first))) != 0) {
std::vector<RTLIL::SigBit> v = sigmap(conn.second).to_sigbit_vector();
for (auto &bit : v)
bit = RTLIL::SigBit(bit.wire == nullptr ? RTLIL::State::S1 : RTLIL::State::S0);
parameters.emplace(stringf("\\_TECHMAP_CONSTMSK_%s_", log_id(conn.first)), RTLIL::SigSpec(v).as_const());
}
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONSTVAL_%s_", log_id(conn.first))) != 0) {
std::vector<RTLIL::SigBit> v = sigmap(conn.second).to_sigbit_vector();
for (auto &bit : v)
if (bit.wire != nullptr)
bit = RTLIL::SigBit(RTLIL::State::Sx);
parameters.emplace(stringf("\\_TECHMAP_CONSTVAL_%s_", log_id(conn.first)), RTLIL::SigSpec(v).as_const());
}
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_WIREINIT_%s_", log_id(conn.first))) != 0) {
auto sig = sigmap(conn.second);
RTLIL::Const value(State::Sx, sig.size());
for (int i = 0; i < sig.size(); i++) {
auto it = init_bits.find(sig[i]);
if (it != init_bits.end()) {
value[i] = it->second;
}
}
parameters.emplace(stringf("\\_TECHMAP_WIREINIT_%s_", log_id(conn.first)), value);
}
}
int unique_bit_id_counter = 0;
dict<RTLIL::SigBit, int> unique_bit_id;
unique_bit_id[RTLIL::State::S0] = unique_bit_id_counter++;
unique_bit_id[RTLIL::State::S1] = unique_bit_id_counter++;
unique_bit_id[RTLIL::State::Sx] = unique_bit_id_counter++;
unique_bit_id[RTLIL::State::Sz] = unique_bit_id_counter++;
for (auto &conn : cell->connections())
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONNMAP_%s_", log_id(conn.first))) != 0) {
for (auto &bit : sigmap(conn.second))
if (unique_bit_id.count(bit) == 0)
unique_bit_id[bit] = unique_bit_id_counter++;
}
// Find highest bit set
int bits = 0;
for (int i = 0; i < 32; i++)
if (((unique_bit_id_counter-1) & (1 << i)) != 0)
bits = i;
// Increment index by one to get number of bits
bits++;
if (tpl->avail_parameters.count(ID::_TECHMAP_BITS_CONNMAP_))
parameters[ID::_TECHMAP_BITS_CONNMAP_] = bits;
for (auto &conn : cell->connections())
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONNMAP_%s_", log_id(conn.first))) != 0) {
RTLIL::Const value;
for (auto &bit : sigmap(conn.second)) {
int val = unique_bit_id.at(bit);
for (int i = 0; i < bits; i++) {
value.bits.push_back((val & 1) != 0 ? State::S1 : State::S0);
val = val >> 1;
}
}
parameters.emplace(stringf("\\_TECHMAP_CONNMAP_%s_", log_id(conn.first)), value);
}
}
if (0) {
use_wrapper_tpl:;
// do not register techmap_wrap modules with techmap_cache
std::pair<IdString, dict<IdString, RTLIL::Const>> key(tpl_name, parameters);
auto it = techmap_cache.find(key);
if (it != techmap_cache.end()) {
tpl = it->second;
} else {
std::pair<IdString, dict<IdString, RTLIL::Const>> key(tpl_name, parameters);
auto it = techmap_cache.find(key);
if (it != techmap_cache.end()) {
tpl = it->second;
} else {
if (parameters.size() != 0) {
mkdebug.on();
derived_name = tpl->derive(map, parameters);
tpl = map->module(derived_name);
log_continue = true;
}
techmap_cache.emplace(std::move(key), tpl);
if (parameters.size() != 0) {
mkdebug.on();
derived_name = tpl->derive(map, parameters);
tpl = map->module(derived_name);
log_continue = true;
}
techmap_cache.emplace(std::move(key), tpl);
}
if (flatten_mode) {
techmap_do_cache[tpl] = true;
} else {
RTLIL::Module *constmapped_tpl = map->module(constmap_tpl_name(sigmap, tpl, cell, false));
if (constmapped_tpl != nullptr)
tpl = constmapped_tpl;
}
if (techmap_do_cache.count(tpl) == 0)
{
bool keep_running = true;
techmap_do_cache[tpl] = true;
pool<IdString> techmap_wire_names;
while (keep_running)
{
TechmapWires twd = techmap_find_special_wires(tpl);
keep_running = false;
for (auto &it : twd)
techmap_wire_names.insert(it.first);
for (auto &it : twd[ID::_TECHMAP_FAIL_]) {
RTLIL::SigSpec value = it.value;
if (value.is_fully_const() && value.as_bool()) {
log("Not using module `%s' from techmap as it contains a %s marker wire with non-zero value %s.\n",
derived_name.c_str(), log_id(it.wire->name), log_signal(value));
techmap_do_cache[tpl] = false;
}
}
if (!techmap_do_cache[tpl])
break;
for (auto &it : twd)
{
if (!it.first.begins_with("\\_TECHMAP_DO_") || it.second.empty())
continue;
auto &data = it.second.front();
if (!data.value.is_fully_const())
log_error("Techmap yielded config wire %s with non-const value %s.\n", log_id(data.wire->name), log_signal(data.value));
techmap_wire_names.erase(it.first);
const char *p = data.wire->name.c_str();
const char *q = strrchr(p+1, '.');
q = q ? q : p+1;
std::string cmd_string = data.value.as_const().decode_string();
restart_eval_cmd_string:
if (cmd_string.rfind("CONSTMAP; ", 0) == 0)
{
cmd_string = cmd_string.substr(strlen("CONSTMAP; "));
log("Analyzing pattern of constant bits for this cell:\n");
IdString new_tpl_name = constmap_tpl_name(sigmap, tpl, cell, true);
log("Creating constmapped module `%s'.\n", log_id(new_tpl_name));
log_assert(map->module(new_tpl_name) == nullptr);
RTLIL::Module *new_tpl = map->addModule(new_tpl_name);
tpl->cloneInto(new_tpl);
techmap_do_cache.erase(tpl);
techmap_do_cache[new_tpl] = true;
tpl = new_tpl;
dict<RTLIL::SigBit, RTLIL::SigBit> port_new2old_map;
dict<RTLIL::SigBit, RTLIL::SigBit> port_connmap;
dict<RTLIL::SigBit, RTLIL::SigBit> cellbits_to_tplbits;
for (auto wire : tpl->wires().to_vector())
{
if (!wire->port_input || wire->port_output)
continue;
IdString port_name = wire->name;
tpl->rename(wire, NEW_ID);
RTLIL::Wire *new_wire = tpl->addWire(port_name, wire);
wire->port_input = false;
wire->port_id = 0;
for (int i = 0; i < wire->width; i++) {
port_new2old_map.emplace(RTLIL::SigBit(new_wire, i), RTLIL::SigBit(wire, i));
port_connmap.emplace(RTLIL::SigBit(wire, i), RTLIL::SigBit(new_wire, i));
}
}
for (auto &conn : cell->connections())
for (int i = 0; i < GetSize(conn.second); i++)
{
RTLIL::SigBit bit = sigmap(conn.second[i]);
RTLIL::SigBit tplbit(tpl->wire(conn.first), i);
if (bit.wire == nullptr)
{
RTLIL::SigBit oldbit = port_new2old_map.at(tplbit);
port_connmap.at(oldbit) = bit;
}
else if (cellbits_to_tplbits.count(bit))
{
RTLIL::SigBit oldbit = port_new2old_map.at(tplbit);
port_connmap.at(oldbit) = cellbits_to_tplbits[bit];
}
else
cellbits_to_tplbits[bit] = tplbit;
}
RTLIL::SigSig port_conn;
for (auto &it : port_connmap) {
port_conn.first.append(it.first);
port_conn.second.append(it.second);
}
tpl->connect(port_conn);
tpl->check();
goto restart_eval_cmd_string;
}
if (cmd_string.rfind("RECURSION; ", 0) == 0)
{
cmd_string = cmd_string.substr(strlen("RECURSION; "));
while (techmap_module(map, tpl, map, handled_cells, celltypeMap, true)) { }
goto restart_eval_cmd_string;
}
Pass::call_on_module(map, tpl, cmd_string);
log_assert(!strncmp(q, "_TECHMAP_DO_", 12));
std::string new_name = data.wire->name.substr(0, q-p) + "_TECHMAP_DONE_" + data.wire->name.substr(q-p+12);
while (tpl->wire(new_name) != nullptr)
new_name += "_";
tpl->rename(data.wire->name, new_name);
keep_running = true;
break;
}
}
TechmapWires twd = techmap_find_special_wires(tpl);
for (auto &it : twd) {
if (it.first != ID::_TECHMAP_FAIL_ && (!it.first.begins_with("\\_TECHMAP_REMOVEINIT_") || !it.first.ends_with("_")) && !it.first.begins_with("\\_TECHMAP_DO_") && !it.first.begins_with("\\_TECHMAP_DONE_"))
log_error("Techmap yielded unknown config wire %s.\n", log_id(it.first));
if (techmap_do_cache[tpl])
for (auto &it2 : it.second)
if (!it2.value.is_fully_const())
log_error("Techmap yielded config wire %s with non-const value %s.\n", log_id(it2.wire->name), log_signal(it2.value));
techmap_wire_names.erase(it.first);
}
for (auto &it : techmap_wire_names)
log_error("Techmap special wire %s disappeared. This is considered a fatal error.\n", log_id(it));
if (recursive_mode) {
if (log_continue) {
log_header(design, "Continuing TECHMAP pass.\n");
log_continue = false;
mkdebug.off();
}
while (techmap_module(map, tpl, map, handled_cells, celltypeMap, true)) { }
}
}
if (techmap_do_cache.at(tpl) == false)
continue;
if (log_continue) {
log_header(design, "Continuing TECHMAP pass.\n");
log_continue = false;
mkdebug.off();
}
TechmapWires twd = techmap_find_special_wires(tpl);
for (auto &it : twd) {
if (it.first.begins_with("\\_TECHMAP_REMOVEINIT_")) {
for (auto &it2 : it.second) {
auto val = it2.value.as_const();
auto wirename = RTLIL::escape_id(it.first.substr(21, it.first.size() - 21 - 1));
auto it = cell->connections().find(wirename);
if (it != cell->connections().end()) {
auto sig = sigmap(it->second);
for (int i = 0; i < sig.size(); i++)
if (val[i] == State::S1)
remove_init_bits.insert(sig[i]);
}
}
}
}
if (extern_mode && !in_recursion)
{
std::string m_name = stringf("$extern:%s", log_id(tpl));
if (!design->module(m_name))
{
RTLIL::Module *m = design->addModule(m_name);
tpl->cloneInto(m);
for (auto cell : m->cells()) {
if (cell->type.begins_with("\\$"))
cell->type = cell->type.substr(1);
}
module_queue.insert(m);
}
log_debug("%s %s.%s to imported %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(m_name));
cell->type = m_name;
cell->parameters.clear();
}
else
{
auto msg = stringf("Using template %s for cells of type %s.", log_id(tpl), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) using %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(tpl));
techmap_module_worker(design, module, cell, tpl);
cell = nullptr;
auto msg = stringf("Using template %s for cells of type %s.", log_id(tpl), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) using %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(tpl));
techmap_module_worker(design, module, cell, tpl);
cell = nullptr;
did_something = true;
mapped_cell = true;
break;
}
if (assert_mode && !mapped_cell)
log_error("(ASSERT MODE) Failed to map cell %s.%s (%s).\n", log_id(module), log_id(cell), log_id(cell->type));
handled_cells.insert(cell);
}
if (!remove_init_bits.empty()) {
for (auto wire : module->wires())
if (wire->attributes.count(ID::init)) {
Const &value = wire->attributes.at(ID::init);
bool do_cleanup = true;
for (int i = 0; i < min(GetSize(value), GetSize(wire)); i++) {
SigBit bit = sigmap(SigBit(wire, i));
if (remove_init_bits.count(bit))
value[i] = State::Sx;
else if (value[i] != State::Sx)
do_cleanup = false;
}
if (do_cleanup) {
log("Removing init attribute from wire %s.%s.\n", log_id(module), log_id(wire));
wire->attributes.erase(ID::init);
}
}
}
if (log_continue) {
log_header(design, "Continuing TECHMAP pass.\n");
log_continue = false;
@ -1077,7 +419,6 @@ struct FlattenPass : public Pass {
log_push();
TechmapWorker worker;
worker.flatten_mode = true;
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) {

403
passes/techmap/techmap.cc
View File

@ -67,10 +67,6 @@ struct TechmapWorker
pool<RTLIL::Module*> module_queue;
dict<Module*, SigMap> sigmaps;
pool<IdString> flatten_do_list;
pool<IdString> flatten_done_list;
pool<Cell*> flatten_keep_list;
pool<string> log_msg_cache;
struct TechmapWireData {
@ -82,7 +78,6 @@ struct TechmapWorker
bool extern_mode = false;
bool assert_mode = false;
bool flatten_mode = false;
bool recursive_mode = false;
bool autoproc_mode = false;
bool ignore_wb = false;
@ -168,13 +163,11 @@ struct TechmapWorker
pool<string> extra_src_attrs = cell->get_strpool_attribute(ID::src);
orig_cell_name = cell->name.str();
if (!flatten_mode) {
for (auto tpl_cell : tpl->cells())
if (tpl_cell->name == ID::_TECHMAP_REPLACE_) {
module->rename(cell, stringf("$techmap%d", autoidx++) + cell->name.str());
break;
}
}
for (auto tpl_cell : tpl->cells())
if (tpl_cell->name == ID::_TECHMAP_REPLACE_) {
module->rename(cell, stringf("$techmap%d", autoidx++) + cell->name.str());
break;
}
dict<IdString, IdString> memory_renames;
@ -205,7 +198,7 @@ struct TechmapWorker
IdString posportname = stringf("$%d", tpl_w->port_id);
positional_ports.emplace(posportname, tpl_w->name);
if (!flatten_mode && tpl_w->get_bool_attribute(ID::techmap_autopurge) &&
if (tpl_w->get_bool_attribute(ID::techmap_autopurge) &&
(!cell->hasPort(tpl_w->name) || !GetSize(cell->getPort(tpl_w->name))) &&
(!cell->hasPort(posportname) || !GetSize(cell->getPort(posportname))))
{
@ -221,26 +214,16 @@ struct TechmapWorker
apply_prefix(cell->name, w_name);
RTLIL::Wire *w = module->wire(w_name);
if (w != nullptr) {
if (!flatten_mode || !w->get_bool_attribute(ID::hierconn)) {
temp_renamed_wires[w] = w->name;
module->rename(w, NEW_ID);
w = nullptr;
} else {
w->attributes.erase(ID::hierconn);
if (GetSize(w) < GetSize(tpl_w)) {
log_warning("Widening signal %s.%s to match size of %s.%s (via %s.%s).\n", log_id(module), log_id(w),
log_id(tpl), log_id(tpl_w), log_id(module), log_id(cell));
w->width = GetSize(tpl_w);
}
}
temp_renamed_wires[w] = w->name;
module->rename(w, NEW_ID);
w = nullptr;
}
if (w == nullptr) {
w = module->addWire(w_name, tpl_w);
w->port_input = false;
w->port_output = false;
w->port_id = 0;
if (!flatten_mode)
w->attributes.erase(ID::techmap_autopurge);
w->attributes.erase(ID::techmap_autopurge);
if (tpl_w->get_bool_attribute(ID::_techmap_special_))
w->attributes.clear();
if (w->attributes.count(ID::src))
@ -322,56 +305,37 @@ struct TechmapWorker
log_assert(c.first.size() == c.second.size());
if (flatten_mode)
{
// more conservative approach:
// connect internal and external wires
if (sigmaps.count(module) == 0)
sigmaps[module].set(module);
if (sigmaps.at(module)(c.first).has_const())
log_error("Mismatch in directionality for cell port %s.%s.%s: %s <= %s\n",
log_id(module), log_id(cell), log_id(it.first), log_signal(c.first), log_signal(c.second));
// replace internal wires that are connected to external wires
if (w->port_output && !w->port_input) {
port_signal_map.add(c.second, c.first);
} else
if (!w->port_output && w->port_input) {
port_signal_map.add(c.first, c.second);
} else {
module->connect(c);
extra_connect = SigSig();
}
else
{
// approach that yields nicer outputs:
// replace internal wires that are connected to external wires
if (w->port_output && !w->port_input) {
port_signal_map.add(c.second, c.first);
} else
if (!w->port_output && w->port_input) {
port_signal_map.add(c.first, c.second);
} else {
module->connect(c);
extra_connect = SigSig();
}
for (auto &attr : w->attributes) {
if (attr.first == ID::src)
continue;
auto lhs = GetSize(extra_connect.first);
auto rhs = GetSize(extra_connect.second);
if (lhs > rhs)
extra_connect.first.remove(rhs, lhs-rhs);
else if (rhs > lhs)
extra_connect.second.remove(lhs, rhs-lhs);
module->connect(extra_connect);
break;
}
for (auto &attr : w->attributes) {
if (attr.first == ID::src)
continue;
auto lhs = GetSize(extra_connect.first);
auto rhs = GetSize(extra_connect.second);
if (lhs > rhs)
extra_connect.first.remove(rhs, lhs-rhs);
else if (rhs > lhs)
extra_connect.second.remove(lhs, rhs-lhs);
module->connect(extra_connect);
break;
}
}
for (auto tpl_cell : tpl->cells())
{
IdString c_name = tpl_cell->name;
bool techmap_replace_cell = (!flatten_mode) && (c_name == ID::_TECHMAP_REPLACE_);
if (techmap_replace_cell)
if (c_name == ID::_TECHMAP_REPLACE_)
c_name = orig_cell_name;
else if (tpl_cell->name.begins_with("\\_TECHMAP_REPLACE_."))
c_name = stringf("%s%s", orig_cell_name.c_str(), c_name.c_str() + strlen("\\_TECHMAP_REPLACE_"));
@ -381,7 +345,7 @@ struct TechmapWorker
RTLIL::Cell *c = module->addCell(c_name, tpl_cell);
design->select(module, c);
if (!flatten_mode && c->type.begins_with("\\$"))
if (c->type.begins_with("\\$"))
c->type = c->type.substr(1);
vector<IdString> autopurge_ports;
@ -426,7 +390,7 @@ struct TechmapWorker
if (c->attributes.count(ID::src))
c->add_strpool_attribute(ID::src, extra_src_attrs);
if (techmap_replace_cell)
if (c_name == ID::_TECHMAP_REPLACE_)
for (auto attr : cell->attributes)
if (!c->attributes.count(attr.first))
c->attributes[attr.first] = attr.second;
@ -499,22 +463,6 @@ struct TechmapWorker
continue;
}
if (flatten_mode) {
bool keepit = cell->get_bool_attribute(ID::keep_hierarchy);
for (auto &tpl_name : celltypeMap.at(cell_type))
if (map->module(tpl_name)->get_bool_attribute(ID::keep_hierarchy))
keepit = true;
if (keepit) {
if (!flatten_keep_list[cell]) {
log("Keeping %s.%s (found keep_hierarchy property).\n", log_id(module), log_id(cell));
flatten_keep_list.insert(cell);
}
if (!flatten_done_list[cell->type])
flatten_do_list.insert(cell->type);
continue;
}
}
for (auto &conn : cell->connections())
{
RTLIL::SigSpec sig = sigmap(conn.second);
@ -564,172 +512,171 @@ struct TechmapWorker
if (tpl->get_blackbox_attribute(ignore_wb))
continue;
if (!flatten_mode)
std::string extmapper_name;
if (tpl->get_bool_attribute(ID::techmap_simplemap))
extmapper_name = "simplemap";
if (tpl->get_bool_attribute(ID::techmap_maccmap))
extmapper_name = "maccmap";
if (tpl->attributes.count(ID::techmap_wrap))
extmapper_name = "wrap";
if (!extmapper_name.empty())
{
std::string extmapper_name;
cell->type = cell_type;
if (tpl->get_bool_attribute(ID::techmap_simplemap))
extmapper_name = "simplemap";
if (tpl->get_bool_attribute(ID::techmap_maccmap))
extmapper_name = "maccmap";
if (tpl->attributes.count(ID::techmap_wrap))
extmapper_name = "wrap";
if (!extmapper_name.empty())
if ((extern_mode && !in_recursion) || extmapper_name == "wrap")
{
cell->type = cell_type;
std::string m_name = stringf("$extern:%s:%s", extmapper_name.c_str(), log_id(cell->type));
if ((extern_mode && !in_recursion) || extmapper_name == "wrap")
for (auto &c : cell->parameters)
m_name += stringf(":%s=%s", log_id(c.first), log_signal(c.second));
if (extmapper_name == "wrap")
m_name += ":" + sha1(tpl->attributes.at(ID::techmap_wrap).decode_string());
RTLIL::Design *extmapper_design = extern_mode && !in_recursion ? design : tpl->design;
RTLIL::Module *extmapper_module = extmapper_design->module(m_name);
if (extmapper_module == nullptr)
{
std::string m_name = stringf("$extern:%s:%s", extmapper_name.c_str(), log_id(cell->type));
extmapper_module = extmapper_design->addModule(m_name);
RTLIL::Cell *extmapper_cell = extmapper_module->addCell(cell->type, cell);
for (auto &c : cell->parameters)
m_name += stringf(":%s=%s", log_id(c.first), log_signal(c.second));
extmapper_cell->set_src_attribute(cell->get_src_attribute());
if (extmapper_name == "wrap")
m_name += ":" + sha1(tpl->attributes.at(ID::techmap_wrap).decode_string());
RTLIL::Design *extmapper_design = extern_mode && !in_recursion ? design : tpl->design;
RTLIL::Module *extmapper_module = extmapper_design->module(m_name);
if (extmapper_module == nullptr)
{
extmapper_module = extmapper_design->addModule(m_name);
RTLIL::Cell *extmapper_cell = extmapper_module->addCell(cell->type, cell);
extmapper_cell->set_src_attribute(cell->get_src_attribute());
int port_counter = 1;
for (auto &c : extmapper_cell->connections_) {
RTLIL::Wire *w = extmapper_module->addWire(c.first, GetSize(c.second));
if (w->name.in(ID::Y, ID::Q))
w->port_output = true;
else
w->port_input = true;
w->port_id = port_counter++;
c.second = w;
}
extmapper_module->fixup_ports();
extmapper_module->check();
if (extmapper_name == "simplemap") {
log("Creating %s with simplemap.\n", log_id(extmapper_module));
if (simplemap_mappers.count(extmapper_cell->type) == 0)
log_error("No simplemap mapper for cell type %s found!\n", log_id(extmapper_cell->type));
simplemap_mappers.at(extmapper_cell->type)(extmapper_module, extmapper_cell);
extmapper_module->remove(extmapper_cell);
}
if (extmapper_name == "maccmap") {
log("Creating %s with maccmap.\n", log_id(extmapper_module));
if (extmapper_cell->type != ID($macc))
log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(extmapper_cell->type));
maccmap(extmapper_module, extmapper_cell);
extmapper_module->remove(extmapper_cell);
}
if (extmapper_name == "wrap") {
std::string cmd_string = tpl->attributes.at(ID::techmap_wrap).decode_string();
log("Running \"%s\" on wrapper %s.\n", cmd_string.c_str(), log_id(extmapper_module));
mkdebug.on();
Pass::call_on_module(extmapper_design, extmapper_module, cmd_string);
log_continue = true;
}
int port_counter = 1;
for (auto &c : extmapper_cell->connections_) {
RTLIL::Wire *w = extmapper_module->addWire(c.first, GetSize(c.second));
if (w->name.in(ID::Y, ID::Q))
w->port_output = true;
else
w->port_input = true;
w->port_id = port_counter++;
c.second = w;
}
cell->type = extmapper_module->name;
cell->parameters.clear();
if (!extern_mode || in_recursion) {
tpl = extmapper_module;
goto use_wrapper_tpl;
}
auto msg = stringf("Using extmapper %s for cells of type %s.", log_id(extmapper_module), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) to %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(extmapper_module));
}
else
{
auto msg = stringf("Using extmapper %s for cells of type %s.", extmapper_name.c_str(), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) with %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), extmapper_name.c_str());
extmapper_module->fixup_ports();
extmapper_module->check();
if (extmapper_name == "simplemap") {
if (simplemap_mappers.count(cell->type) == 0)
log_error("No simplemap mapper for cell type %s found!\n", log_id(cell->type));
simplemap_mappers.at(cell->type)(module, cell);
log("Creating %s with simplemap.\n", log_id(extmapper_module));
if (simplemap_mappers.count(extmapper_cell->type) == 0)
log_error("No simplemap mapper for cell type %s found!\n", log_id(extmapper_cell->type));
simplemap_mappers.at(extmapper_cell->type)(extmapper_module, extmapper_cell);
extmapper_module->remove(extmapper_cell);
}
if (extmapper_name == "maccmap") {
if (cell->type != ID($macc))
log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(cell->type));
maccmap(module, cell);
log("Creating %s with maccmap.\n", log_id(extmapper_module));
if (extmapper_cell->type != ID($macc))
log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(extmapper_cell->type));
maccmap(extmapper_module, extmapper_cell);
extmapper_module->remove(extmapper_cell);
}
module->remove(cell);
cell = nullptr;
if (extmapper_name == "wrap") {
std::string cmd_string = tpl->attributes.at(ID::techmap_wrap).decode_string();
log("Running \"%s\" on wrapper %s.\n", cmd_string.c_str(), log_id(extmapper_module));
mkdebug.on();
Pass::call_on_module(extmapper_design, extmapper_module, cmd_string);
log_continue = true;
}
}
did_something = true;
mapped_cell = true;
break;
cell->type = extmapper_module->name;
cell->parameters.clear();
if (!extern_mode || in_recursion) {
tpl = extmapper_module;
goto use_wrapper_tpl;
}
auto msg = stringf("Using extmapper %s for cells of type %s.", log_id(extmapper_module), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) to %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), log_id(extmapper_module));
}
else
{
auto msg = stringf("Using extmapper %s for cells of type %s.", extmapper_name.c_str(), log_id(cell->type));
if (!log_msg_cache.count(msg)) {
log_msg_cache.insert(msg);
log("%s\n", msg.c_str());
}
log_debug("%s %s.%s (%s) with %s.\n", mapmsg_prefix.c_str(), log_id(module), log_id(cell), log_id(cell->type), extmapper_name.c_str());
if (extmapper_name == "simplemap") {
if (simplemap_mappers.count(cell->type) == 0)
log_error("No simplemap mapper for cell type %s found!\n", log_id(cell->type));
simplemap_mappers.at(cell->type)(module, cell);
}
if (extmapper_name == "maccmap") {
if (cell->type != ID($macc))
log_error("The maccmap mapper can only map $macc (not %s) cells!\n", log_id(cell->type));
maccmap(module, cell);
}
module->remove(cell);
cell = nullptr;
}
for (auto &conn : cell->connections()) {
if (conn.first.begins_with("$"))
continue;
if (tpl->wire(conn.first) != nullptr && tpl->wire(conn.first)->port_id > 0)
continue;
if (!conn.second.is_fully_const() || parameters.count(conn.first) > 0 || tpl->avail_parameters.count(conn.first) == 0)
goto next_tpl;
parameters[conn.first] = conn.second.as_const();
}
did_something = true;
mapped_cell = true;
break;
}
if (0) {
next_tpl:
for (auto &conn : cell->connections()) {
if (conn.first.begins_with("$"))
continue;
if (tpl->wire(conn.first) != nullptr && tpl->wire(conn.first)->port_id > 0)
continue;
if (!conn.second.is_fully_const() || parameters.count(conn.first) > 0 || tpl->avail_parameters.count(conn.first) == 0)
goto next_tpl;
parameters[conn.first] = conn.second.as_const();
}
if (0) {
next_tpl:
continue;
}
if (tpl->avail_parameters.count(ID::_TECHMAP_CELLTYPE_) != 0)
parameters.emplace(ID::_TECHMAP_CELLTYPE_, RTLIL::unescape_id(cell->type));
for (auto &conn : cell->connections()) {
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONSTMSK_%s_", log_id(conn.first))) != 0) {
std::vector<RTLIL::SigBit> v = sigmap(conn.second).to_sigbit_vector();
for (auto &bit : v)
bit = RTLIL::SigBit(bit.wire == nullptr ? RTLIL::State::S1 : RTLIL::State::S0);
parameters.emplace(stringf("\\_TECHMAP_CONSTMSK_%s_", log_id(conn.first)), RTLIL::SigSpec(v).as_const());
}
if (tpl->avail_parameters.count(ID::_TECHMAP_CELLTYPE_) != 0)
parameters.emplace(ID::_TECHMAP_CELLTYPE_, RTLIL::unescape_id(cell->type));
for (auto &conn : cell->connections()) {
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONSTMSK_%s_", log_id(conn.first))) != 0) {
std::vector<RTLIL::SigBit> v = sigmap(conn.second).to_sigbit_vector();
for (auto &bit : v)
bit = RTLIL::SigBit(bit.wire == nullptr ? RTLIL::State::S1 : RTLIL::State::S0);
parameters.emplace(stringf("\\_TECHMAP_CONSTMSK_%s_", log_id(conn.first)), RTLIL::SigSpec(v).as_const());
}
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONSTVAL_%s_", log_id(conn.first))) != 0) {
std::vector<RTLIL::SigBit> v = sigmap(conn.second).to_sigbit_vector();
for (auto &bit : v)
if (bit.wire != nullptr)
bit = RTLIL::SigBit(RTLIL::State::Sx);
parameters.emplace(stringf("\\_TECHMAP_CONSTVAL_%s_", log_id(conn.first)), RTLIL::SigSpec(v).as_const());
}
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_WIREINIT_%s_", log_id(conn.first))) != 0) {
auto sig = sigmap(conn.second);
RTLIL::Const value(State::Sx, sig.size());
for (int i = 0; i < sig.size(); i++) {
auto it = init_bits.find(sig[i]);
if (it != init_bits.end()) {
value[i] = it->second;
}
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_CONSTVAL_%s_", log_id(conn.first))) != 0) {
std::vector<RTLIL::SigBit> v = sigmap(conn.second).to_sigbit_vector();
for (auto &bit : v)
if (bit.wire != nullptr)
bit = RTLIL::SigBit(RTLIL::State::Sx);
parameters.emplace(stringf("\\_TECHMAP_CONSTVAL_%s_", log_id(conn.first)), RTLIL::SigSpec(v).as_const());
}
if (tpl->avail_parameters.count(stringf("\\_TECHMAP_WIREINIT_%s_", log_id(conn.first))) != 0) {
auto sig = sigmap(conn.second);
RTLIL::Const value(State::Sx, sig.size());
for (int i = 0; i < sig.size(); i++) {
auto it = init_bits.find(sig[i]);
if (it != init_bits.end()) {
value[i] = it->second;
}
parameters.emplace(stringf("\\_TECHMAP_WIREINIT_%s_", log_id(conn.first)), value);
}
parameters.emplace(stringf("\\_TECHMAP_WIREINIT_%s_", log_id(conn.first)), value);
}
}
{
int unique_bit_id_counter = 0;
dict<RTLIL::SigBit, int> unique_bit_id;
unique_bit_id[RTLIL::State::S0] = unique_bit_id_counter++;
@ -787,13 +734,9 @@ struct TechmapWorker
}
}
if (flatten_mode) {
techmap_do_cache[tpl] = true;
} else {
RTLIL::Module *constmapped_tpl = map->module(constmap_tpl_name(sigmap, tpl, cell, false));
if (constmapped_tpl != nullptr)
tpl = constmapped_tpl;
}
RTLIL::Module *constmapped_tpl = map->module(constmap_tpl_name(sigmap, tpl, cell, false));
if (constmapped_tpl != nullptr)
tpl = constmapped_tpl;
if (techmap_do_cache.count(tpl) == 0)
{