mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2026-03-02 03:36:56 +00:00
Code Activity

Aiger use newcelltypes.

Browse source
This commit is contained in:
nella 2026-02-28 18:09:34 +01:00
parent 2a2c91e78a
commit 603ba688b2
1 changed files with 79 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

129
backends/aiger2/aiger.cc
View file

@ -23,7 +23,7 @@
// - zero-width operands
#include "kernel/register.h"
#include "kernel/celltypes.h"
#include "kernel/newcelltypes.h"
#include "kernel/rtlil.h"
USING_YOSYS_NAMESPACE
@ -45,10 +45,30 @@ PRIVATE_NAMESPACE_BEGIN
// TODO
//#define ARITH_OPS ID($add), ID($sub), ID($neg)
// TODO convert to newcelltypes
#define KNOWN_OPS BITWISE_OPS, REDUCE_OPS, LOGIC_OPS, GATE_OPS, ID($pos), CMP_OPS, \
ID($pmux), ID($bmux) /*, ARITH_OPS*/
static constexpr auto known_ops = []() constexpr {
StaticCellTypes::Categories::Category c{};
// bitwise
for (auto id : {ID($buf), ID($not), ID($mux), ID($and), ID($or), ID($xor), ID($xnor), ID($fa), ID($bwmux)})
c.set_id(id);
// reduce
for (auto id : {ID($reduce_and), ID($reduce_or), ID($reduce_xor), ID($reduce_xnor), ID($reduce_bool)})
c.set_id(id);
// logic
for (auto id : {ID($logic_and), ID($logic_or), ID($logic_not)})
c.set_id(id);
// gates
for (auto id : {ID($_BUF_), ID($_NOT_), ID($_AND_), ID($_NAND_), ID($_OR_), ID($_NOR_),
ID($_XOR_), ID($_XNOR_), ID($_ANDNOT_), ID($_ORNOT_), ID($_MUX_), ID($_NMUX_),
ID($_AOI3_), ID($_OAI3_), ID($_AOI4_), ID($_OAI4_)})
c.set_id(id);
// compare
for (auto id : {ID($eq), ID($ne), ID($lt), ID($le), ID($ge), ID($gt)})
c.set_id(id);
// other
for (auto id : {ID($pos), ID($pmux), ID($bmux)})
c.set_id(id);
return c;
}();
template<typename Writer, typename Lit, Lit CFALSE, Lit CTRUE>
struct Index {
@ -94,7 +114,7 @@ struct Index {
int pos = index_wires(info, m);
for (auto cell : m->cells()) {
if (cell->type.in(KNOWN_OPS) || cell->type.in(ID($scopeinfo), ID($specify2), ID($specify3), ID($input_port)))
if (known_ops(cell->type) || cell->type.in(ID($scopeinfo), ID($specify2), ID($specify3), ID($input_port)))
continue;
Module *submodule = m->design->module(cell->type);
@ -106,7 +126,7 @@ struct Index {
pos += index_module(submodule);
} else {
if (allow_blackboxes) {
info.found_blackboxes.insert(cell);
info.found_blackboxes.insert(cell);
} else {
// Even if we don't allow blackboxes these might still be
// present outside of any traversed input cones, so we
@ -271,7 +291,7 @@ struct Index {
} else if (cell->type.in(ID($lt), ID($le), ID($gt), ID($ge))) {
if (cell->type.in(ID($gt), ID($ge)))
std::swap(aport, bport);
int carry = cell->type.in(ID($le), ID($ge)) ? CFALSE : CTRUE;
int carry = cell->type.in(ID($le), ID($ge)) ? CFALSE : CTRUE;
Lit a = Writer::EMPTY_LIT;
Lit b = Writer::EMPTY_LIT;
// TODO: this might not be the most economic structure; revisit at a later date
@ -581,7 +601,7 @@ struct Index {
// an output of a cell
Cell *driver = bit.wire->driverCell();
if (driver->type.in(KNOWN_OPS)) {
if (known_ops(driver->type)) {
ret = impl_op(cursor, driver, bit.wire->driverPort(), bit.offset);
} else {
Module *def = cursor.enter(*this, driver);
@ -918,15 +938,15 @@ struct XAigerWriter : AigerWriter {
std::vector<HierBit> pos;
std::vector<HierBit> pis;
// * The aiger output port sequence is COs (inputs to modeled boxes),
// inputs to opaque boxes, then module outputs. COs going first is
// required by abc.
// * proper_pos_counter counts ports which follow after COs
// * The mapping file `pseudopo` and `po` statements use indexing relative
// to the first port following COs.
// * If a module output is directly driven by an opaque box, the emission
// of the po statement in the mapping file is skipped. This is done to
// aid re-integration of the mapped result.
// * The aiger output port sequence is COs (inputs to modeled boxes),
// inputs to opaque boxes, then module outputs. COs going first is
// required by abc.
// * proper_pos_counter counts ports which follow after COs
// * The mapping file `pseudopo` and `po` statements use indexing relative
// to the first port following COs.
// * If a module output is directly driven by an opaque box, the emission
// of the po statement in the mapping file is skipped. This is done to
// aid re-integration of the mapped result.
int proper_pos_counter = 0;
pool<SigBit> driven_by_opaque_box;
@ -1333,41 +1353,50 @@ struct Aiger2Backend : Backend {
log(" perform structural hashing while writing\n");
log("\n");
log(" -flatten\n");
log(" allow descending into submodules and write a flattened view of the design\n");
log(" hierarchy starting at the selected top\n");
log("\n");
log(" allow descending into submodules and write a flattened view of the design\n");
log(" hierarchy starting at the selected top\n");
log("\n");
log("This command is able to ingest all combinational cells except for:\n");
log("\n");
pool<IdString> supported = {KNOWN_OPS};
CellTypes ct;
ct.setup_internals_eval();
log(" ");
int col = 0;
for (auto pair : ct.cell_types)
if (!supported.count(pair.first)) {
if (col + pair.first.size() + 2 > 72) {
for (size_t i = 0; i < StaticCellTypes::builder.count; i++) {
auto &cell = StaticCellTypes::builder.cells[i];
if (!cell.features.is_evaluable)
continue;
if (cell.features.is_stdcell)
continue;
if (known_ops(cell.type))
continue;
std::string name = log_id(cell.type);
if (col + name.size() + 2 > 72) {
log("\n ");
col = 0;
}
col += pair.first.size() + 2;
log("%s, ", log_id(pair.first));
col += name.size() + 2;
log("%s, ", name.c_str());
}
log("\n");
log("\n");
log("And all combinational gates except for:\n");
log("\n");
CellTypes ct2;
ct2.setup_stdcells();
log(" ");
col = 0;
for (auto pair : ct2.cell_types)
if (!supported.count(pair.first)) {
if (col + pair.first.size() + 2 > 72) {
for (size_t i = 0; i < StaticCellTypes::builder.count; i++) {
auto &cell = StaticCellTypes::builder.cells[i];
if (!cell.features.is_evaluable)
continue;
if (!cell.features.is_stdcell)
continue;
if (known_ops(cell.type))
continue;
std::string name = log_id(cell.type);
if (col + name.size() + 2 > 72) {
log("\n ");
col = 0;
}
col += pair.first.size() + 2;
log("%s, ", log_id(pair.first));
col += name.size() + 2;
log("%s, ", name.c_str());
}
log("\n");
}
@ -1425,20 +1454,20 @@ struct XAiger2Backend : Backend {
log(" perform structural hashing while writing\n");
log("\n");
log(" -flatten\n");
log(" allow descending into submodules and write a flattened view of the design\n");
log(" hierarchy starting at the selected top\n");
log("\n");
log(" -mapping_prep\n");
log(" after the file is written, prepare the module for reintegration of\n");
log(" a mapping in a subsequent command. all cells which are not blackboxed nor\n");
log(" whiteboxed are removed from the design as well as all wires which only\n");
log(" connect to removed cells\n");
log(" (conflicts with -flatten)\n");
log("\n");
log(" -map2 <file>\n");
log(" write a map2 file which 'read_xaiger2 -sc_mapping' can read to\n");
log(" reintegrate a mapping\n");
log(" (conflicts with -flatten)\n");
log(" allow descending into submodules and write a flattened view of the design\n");
log(" hierarchy starting at the selected top\n");
log("\n");
log(" -mapping_prep\n");
log(" after the file is written, prepare the module for reintegration of\n");
log(" a mapping in a subsequent command. all cells which are not blackboxed nor\n");
log(" whiteboxed are removed from the design as well as all wires which only\n");
log(" connect to removed cells\n");
log(" (conflicts with -flatten)\n");
log("\n");
log(" -map2 <file>\n");
log(" write a map2 file which 'read_xaiger2 -sc_mapping' can read to\n");
log(" reintegrate a mapping\n");
log(" (conflicts with -flatten)\n");
log("\n");
}