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twine: switch to std::deque from forked plf::colony

This commit is contained in:
Emil J. Tywoniak 2026-06-19 11:36:51 +02:00
parent bffe7a6e57
commit 63043901ea
3 changed files with 14 additions and 24 deletions
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3
.gitmodules vendored
View File

@ -5,6 +5,3 @@
[submodule "cxxopts"]
path = libs/cxxopts
url = https://github.com/jarro2783/cxxopts
[submodule "libs/plf_colony"]
path = libs/plf_colony
url = git@github.com:mattreecebentley/plf_colony.git

34
kernel/twine.h
View File

@ -6,9 +6,9 @@
#include <cassert>
#include "libs/plf_colony/plf_colony.h"
#include <algorithm>
#include <cstdint>
#include <deque>
#include <limits>
#include <span>
#include <sstream>
@ -164,7 +164,7 @@ void twine_prepopulate();
struct TwinePool {
static std::vector<Twine> globals_;
plf::colony<Twine> backing;
std::deque<Twine> backing;
std::unordered_set<TwineRef, TwineHash, TwineEq> index;
// Indices of monostate, kept sorted
std::vector<size_t> free_list;
@ -172,12 +172,8 @@ struct TwinePool {
const Twine& operator[] (TwineRef ref) const {
ref = twine_untag(ref);
if (ref < STATIC_TWINE_END) {
// if (yosys_xtrace)
// std::cout << "#X# accessing " << (size_t)ref << " from globals\n";
return globals_[ref];
} else {
// if (yosys_xtrace)
// std::cout << "#X# accessing " << (size_t)ref << " from colony of size " << backing.size() << "\n";
return backing[ref - STATIC_TWINE_END];
}
}
@ -293,9 +289,8 @@ struct TwinePool {
for (TwineRef ref = 0; ref < STATIC_TWINE_END; ref++)
index.insert(ref);
free_list.clear();
for (auto it = backing.begin(); it != backing.end(); ++it) {
size_t idx = backing.get_index(it);
if (it->is_dead())
for (size_t idx = 0; idx < backing.size(); ++idx) {
if (backing[idx].is_dead())
free_list.push_back(idx);
else
index.insert(STATIC_TWINE_END + idx);
@ -350,8 +345,8 @@ struct TwinePool {
backing[idx] = std::move(t);
ref = STATIC_TWINE_END + idx;
} else {
auto colony_it = backing.insert(std::move(t));
ref = STATIC_TWINE_END + backing.get_index(colony_it);
ref = STATIC_TWINE_END + backing.size();
backing.push_back(std::move(t));
}
index.insert(ref);
if (yosys_xtrace) {
@ -430,14 +425,13 @@ struct TwinePool {
for (TwineRef ref : roots)
mark_live(ref, live);
size_t erased = 0;
for (auto it = backing.begin(); it != backing.end(); ++it) {
if (it->is_dead())
for (size_t idx = 0; idx < backing.size(); ++idx) {
if (backing[idx].is_dead())
continue;
size_t idx = backing.get_index(it);
if (!live.count(STATIC_TWINE_END + idx)) {
index.erase(STATIC_TWINE_END + idx);
free_list.push_back(idx);
*it = Twine{};
backing[idx] = Twine{};
erased++;
}
}
@ -461,8 +455,8 @@ struct TwinePool {
void dump(std::ostream& os = std::cout) const {
os << "--- TwinePool Dump (" << backing.size() << " nodes) ---\n";
for (auto it = backing.begin(); it != backing.end(); ++it) {
TwineRef ref = STATIC_TWINE_END + backing.get_index(it);
for (size_t idx = 0; idx < backing.size(); ++idx) {
TwineRef ref = STATIC_TWINE_END + idx;
os << ref << " -> ";
dump(ref, os);
os << '\n';
@ -716,10 +710,10 @@ struct TwineSearch {
TwineSearch(const TwinePool* pool) : pool(pool), index(0, DeepTwineHash{pool}, DeepTwineEq{pool}) {
for (TwineRef ref = 0; ref < STATIC_TWINE_END; ref++)
index.insert(ref);
for (auto it = pool->backing.begin(); it != pool->backing.end(); ++it) {
if (it->is_dead())
for (size_t idx = 0; idx < pool->backing.size(); ++idx) {
if (pool->backing[idx].is_dead())
continue;
index.insert(STATIC_TWINE_END + pool->backing.get_index(it));
index.insert(STATIC_TWINE_END + idx);
}
}
// Escaped-name aware. Resolves both statics and locals by content.

1
libs/plf_colony

@ -1 +0,0 @@
Subproject commit bdc219742d116b569c2a44956ba0aba5f3ef5717