* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
- *
+ *
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
struct bitDef_t : public std::pair<RTLIL::Wire*, int> {
bitDef_t() : std::pair<RTLIL::Wire*, int>(NULL, 0) { }
bitDef_t(const RTLIL::SigBit &bit) : std::pair<RTLIL::Wire*, int>(bit.wire, bit.offset) { }
+ unsigned int hash() const { return first->name.hash() + second; }
};
- std::set<bitDef_t> bits;
+ pool<bitDef_t> bits;
void clear()
{
void expand(RTLIL::SigSpec from, RTLIL::SigSpec to)
{
- log_assert(SIZE(from) == SIZE(to));
- for (int i = 0; i < SIZE(from); i++) {
+ log_assert(GetSize(from) == GetSize(to));
+ for (int i = 0; i < GetSize(from); i++) {
bitDef_t bit_from(from[i]), bit_to(to[i]);
if (bit_from.first != NULL && bit_to.first != NULL && bits.count(bit_from) > 0)
bits.insert(bit_to);
RTLIL::SigSpec export_all()
{
- std::set<RTLIL::SigBit> sig;
+ pool<RTLIL::SigBit> sig;
for (auto &bit : bits)
sig.insert(RTLIL::SigBit(bit.first, bit.second));
return sig;
}
- size_t size()
+ size_t size() const
{
return bits.size();
}
};
-template <typename T, class Compare = std::less<T>>
+template <typename T, class Compare = void>
struct SigSet
{
+ static_assert(!std::is_same<Compare,void>::value, "Default value for `Compare' class not found for SigSet<T>. Please specify.");
+
struct bitDef_t : public std::pair<RTLIL::Wire*, int> {
bitDef_t() : std::pair<RTLIL::Wire*, int>(NULL, 0) { }
bitDef_t(const RTLIL::SigBit &bit) : std::pair<RTLIL::Wire*, int>(bit.wire, bit.offset) { }
+ unsigned int hash() const { return first->name.hash() + second; }
};
- std::map<bitDef_t, std::set<T, Compare>> bits;
+ dict<bitDef_t, std::set<T, Compare>> bits;
void clear()
{
}
}
+ void find(RTLIL::SigSpec sig, pool<T> &result)
+ {
+ for (auto &bit : sig)
+ if (bit.wire != NULL) {
+ auto &data = bits[bit];
+ result.insert(data.begin(), data.end());
+ }
+ }
+
std::set<T> find(RTLIL::SigSpec sig)
{
std::set<T> result;
}
};
+template<typename T>
+class SigSet<T, typename std::enable_if<!std::is_pointer<T>::value>::type> : public SigSet<T, std::less<T>> {};
+template<typename T>
+using sort_by_name_id_guard = typename std::enable_if<std::is_same<T,RTLIL::Cell*>::value>::type;
+template<typename T>
+class SigSet<T, sort_by_name_id_guard<T>> : public SigSet<T, RTLIL::sort_by_name_id<typename std::remove_pointer<T>::type>> {};
+
struct SigMap
{
- struct bitDef_t : public std::pair<RTLIL::Wire*, int> {
- bitDef_t() : std::pair<RTLIL::Wire*, int>(NULL, 0) { }
- bitDef_t(const RTLIL::SigBit &bit) : std::pair<RTLIL::Wire*, int>(bit.wire, bit.offset) { }
- };
-
- struct shared_bit_data_t {
- RTLIL::SigBit map_to;
- std::set<bitDef_t> bits;
- };
-
- std::map<bitDef_t, shared_bit_data_t*> bits;
+ mfp<SigBit> database;
SigMap(RTLIL::Module *module = NULL)
{
set(module);
}
- SigMap(const SigMap &other)
- {
- copy(other);
- }
-
- const SigMap &operator=(const SigMap &other)
- {
- copy(other);
- return *this;
- }
-
- void copy(const SigMap &other)
- {
- clear();
- for (auto &bit : other.bits) {
- bits[bit.first] = new shared_bit_data_t;
- bits[bit.first]->map_to = bit.second->map_to;
- bits[bit.first]->bits = bit.second->bits;
- }
- }
-
void swap(SigMap &other)
{
- bits.swap(other.bits);
- }
-
- ~SigMap()
- {
- clear();
+ database.swap(other.database);
}
void clear()
{
- std::set<shared_bit_data_t*> all_bd_ptr;
- for (auto &it : bits)
- all_bd_ptr.insert(it.second);
- for (auto bd_ptr : all_bd_ptr)
- delete bd_ptr;
- bits.clear();
+ database.clear();
}
void set(RTLIL::Module *module)
{
- clear();
+ int bitcount = 0;
for (auto &it : module->connections())
- add(it.first, it.second);
- }
+ bitcount += it.first.size();
- // internal helper function
- void register_bit(const RTLIL::SigBit &bit)
- {
- if (bit.wire && bits.count(bit) == 0) {
- shared_bit_data_t *bd = new shared_bit_data_t;
- bd->map_to = bit;
- bd->bits.insert(bit);
- bits[bit] = bd;
- }
- }
-
- // internal helper function
- void unregister_bit(const RTLIL::SigBit &bit)
- {
- if (bit.wire && bits.count(bit) > 0) {
- shared_bit_data_t *bd = bits[bit];
- bd->bits.erase(bit);
- if (bd->bits.size() == 0)
- delete bd;
- bits.erase(bit);
- }
- }
-
- // internal helper function
- void merge_bit(const RTLIL::SigBit &bit1, const RTLIL::SigBit &bit2)
- {
- log_assert(bit1.wire != NULL && bit2.wire != NULL);
-
- shared_bit_data_t *bd1 = bits[bit1];
- shared_bit_data_t *bd2 = bits[bit2];
- log_assert(bd1 != NULL && bd2 != NULL);
-
- if (bd1 == bd2)
- return;
-
- if (bd1->bits.size() < bd2->bits.size())
- {
- for (auto &bit : bd1->bits)
- bits[bit] = bd2;
- bd2->bits.insert(bd1->bits.begin(), bd1->bits.end());
- delete bd1;
- }
- else
- {
- bd1->map_to = bd2->map_to;
- for (auto &bit : bd2->bits)
- bits[bit] = bd1;
- bd1->bits.insert(bd2->bits.begin(), bd2->bits.end());
- delete bd2;
- }
- }
+ database.clear();
+ database.reserve(bitcount);
- // internal helper function
- void set_bit(const RTLIL::SigBit &bit1, const RTLIL::SigBit &bit2)
- {
- log_assert(bit1.wire != NULL);
- log_assert(bits.count(bit1) > 0);
- bits[bit1]->map_to = bit2;
- }
-
- // internal helper function
- void map_bit(RTLIL::SigBit &bit) const
- {
- if (bit.wire && bits.count(bit) > 0)
- bit = bits.at(bit)->map_to;
+ for (auto &it : module->connections())
+ add(it.first, it.second);
}
void add(RTLIL::SigSpec from, RTLIL::SigSpec to)
{
- log_assert(SIZE(from) == SIZE(to));
+ log_assert(GetSize(from) == GetSize(to));
- for (int i = 0; i < SIZE(from); i++)
+ for (int i = 0; i < GetSize(from); i++)
{
- RTLIL::SigBit &bf = from[i];
- RTLIL::SigBit &bt = to[i];
+ int bfi = database.lookup(from[i]);
+ int bti = database.lookup(to[i]);
+
+ const RTLIL::SigBit &bf = database[bfi];
+ const RTLIL::SigBit &bt = database[bti];
- if (bf.wire == NULL)
- continue;
+ if (bf.wire || bt.wire)
+ {
+ database.imerge(bfi, bti);
- register_bit(bf);
- register_bit(bt);
+ if (bf.wire == nullptr)
+ database.ipromote(bfi);
- if (bt.wire != NULL)
- merge_bit(bf, bt);
- else
- set_bit(bf, bt);
+ if (bt.wire == nullptr)
+ database.ipromote(bti);
+ }
}
}
void add(RTLIL::SigSpec sig)
{
for (auto &bit : sig) {
- register_bit(bit);
- set_bit(bit, bit);
+ RTLIL::SigBit b = database.find(bit);
+ if (b.wire != nullptr)
+ database.promote(bit);
}
}
- void del(RTLIL::SigSpec sig)
- {
- for (auto &bit : sig)
- unregister_bit(bit);
- }
-
void apply(RTLIL::SigBit &bit) const
{
- map_bit(bit);
+ bit = database.find(bit);
}
void apply(RTLIL::SigSpec &sig) const
{
for (auto &bit : sig)
- map_bit(bit);
+ apply(bit);
}
RTLIL::SigBit operator()(RTLIL::SigBit bit) const
RTLIL::SigSpec operator()(RTLIL::Wire *wire) const
{
- RTLIL::SigSpec sig(wire);
+ SigSpec sig(wire);
apply(sig);
return sig;
}
+
+ RTLIL::SigSpec allbits() const
+ {
+ RTLIL::SigSpec sig;
+ for (auto &bit : database)
+ if (bit.wire != nullptr)
+ sig.append(bit);
+ return sig;
+ }
};
YOSYS_NAMESPACE_END
projects / yosys.git / blobdiff