mirror of https://github.com/YosysHQ/yosys.git
2036 lines
68 KiB
C++
2036 lines
68 KiB
C++
/*
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* yosys -- Yosys Open SYnthesis Suite
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*
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* Copyright (C) 2012 Claire Xenia Wolf <claire@yosyshq.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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// [[CITE]] ABC
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// Berkeley Logic Synthesis and Verification Group, ABC: A System for Sequential Synthesis and Verification
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// http://www.eecs.berkeley.edu/~alanmi/abc/
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// [[CITE]] Berkeley Logic Interchange Format (BLIF)
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// University of California. Berkeley. July 28, 1992
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// http://www.ece.cmu.edu/~ee760/760docs/blif.pdf
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// [[CITE]] Kahn's Topological sorting algorithm
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// Kahn, Arthur B. (1962), "Topological sorting of large networks", Communications of the ACM 5 (11): 558-562, doi:10.1145/368996.369025
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// http://en.wikipedia.org/wiki/Topological_sorting
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#define ABC_COMMAND_LIB "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put"
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#define ABC_COMMAND_CTR "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put; buffer; upsize {D}; dnsize {D}; stime -p"
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#define ABC_COMMAND_LUT "strash; ifraig; scorr; dc2; dretime; strash; dch -f; if; mfs2"
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#define ABC_COMMAND_SOP "strash; ifraig; scorr; dc2; dretime; strash; dch -f; cover {I} {P}"
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#define ABC_COMMAND_DFL "strash; ifraig; scorr; dc2; dretime; strash; &get -n; &dch -f; &nf {D}; &put"
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#define ABC_FAST_COMMAND_LIB "strash; dretime; map {D}"
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#define ABC_FAST_COMMAND_CTR "strash; dretime; map {D}; buffer; upsize {D}; dnsize {D}; stime -p"
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#define ABC_FAST_COMMAND_LUT "strash; dretime; if"
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#define ABC_FAST_COMMAND_SOP "strash; dretime; cover {I} {P}"
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#define ABC_FAST_COMMAND_DFL "strash; dretime; map"
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#include "kernel/register.h"
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#include "kernel/sigtools.h"
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#include "kernel/celltypes.h"
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#include "kernel/ffinit.h"
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#include "kernel/cost.h"
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#include "kernel/log.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <cctype>
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#include <cerrno>
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#include <sstream>
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#include <climits>
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#include <vector>
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#ifndef _WIN32
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# include <unistd.h>
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# include <dirent.h>
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#endif
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#include "frontends/blif/blifparse.h"
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#ifdef YOSYS_LINK_ABC
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extern "C" int Abc_RealMain(int argc, char *argv[]);
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#endif
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USING_YOSYS_NAMESPACE
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PRIVATE_NAMESPACE_BEGIN
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enum class gate_type_t {
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G_NONE,
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G_FF,
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G_BUF,
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G_NOT,
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G_AND,
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G_NAND,
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G_OR,
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G_NOR,
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G_XOR,
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G_XNOR,
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G_ANDNOT,
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G_ORNOT,
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G_MUX,
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G_NMUX,
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G_AOI3,
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G_OAI3,
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G_AOI4,
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G_OAI4
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};
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#define G(_name) gate_type_t::G_ ## _name
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struct gate_t
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{
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int id;
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gate_type_t type;
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int in1, in2, in3, in4;
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bool is_port;
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RTLIL::SigBit bit;
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RTLIL::State init;
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};
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bool map_mux4;
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bool map_mux8;
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bool map_mux16;
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bool markgroups;
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int map_autoidx;
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SigMap assign_map;
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RTLIL::Module *module;
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std::vector<gate_t> signal_list;
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std::map<RTLIL::SigBit, int> signal_map;
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FfInitVals initvals;
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pool<std::string> enabled_gates;
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bool recover_init, cmos_cost;
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bool clk_polarity, en_polarity;
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RTLIL::SigSpec clk_sig, en_sig;
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dict<int, std::string> pi_map, po_map;
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int map_signal(RTLIL::SigBit bit, gate_type_t gate_type = G(NONE), int in1 = -1, int in2 = -1, int in3 = -1, int in4 = -1)
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{
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assign_map.apply(bit);
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if (signal_map.count(bit) == 0) {
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gate_t gate;
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gate.id = signal_list.size();
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gate.type = G(NONE);
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gate.in1 = -1;
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gate.in2 = -1;
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gate.in3 = -1;
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gate.in4 = -1;
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gate.is_port = false;
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gate.bit = bit;
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gate.init = initvals(bit);
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signal_list.push_back(gate);
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signal_map[bit] = gate.id;
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}
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gate_t &gate = signal_list[signal_map[bit]];
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if (gate_type != G(NONE))
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gate.type = gate_type;
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if (in1 >= 0)
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gate.in1 = in1;
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if (in2 >= 0)
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gate.in2 = in2;
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if (in3 >= 0)
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gate.in3 = in3;
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if (in4 >= 0)
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gate.in4 = in4;
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return gate.id;
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}
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void mark_port(RTLIL::SigSpec sig)
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{
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for (auto &bit : assign_map(sig))
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if (bit.wire != nullptr && signal_map.count(bit) > 0)
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signal_list[signal_map[bit]].is_port = true;
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}
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void extract_cell(RTLIL::Cell *cell, bool keepff)
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{
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if (cell->type.in(ID($_DFF_N_), ID($_DFF_P_)))
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{
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if (clk_polarity != (cell->type == ID($_DFF_P_)))
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return;
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if (clk_sig != assign_map(cell->getPort(ID::C)))
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return;
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if (GetSize(en_sig) != 0)
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return;
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goto matching_dff;
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}
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if (cell->type.in(ID($_DFFE_NN_), ID($_DFFE_NP_), ID($_DFFE_PN_), ID($_DFFE_PP_)))
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{
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if (clk_polarity != cell->type.in(ID($_DFFE_PN_), ID($_DFFE_PP_)))
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return;
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if (en_polarity != cell->type.in(ID($_DFFE_NP_), ID($_DFFE_PP_)))
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return;
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if (clk_sig != assign_map(cell->getPort(ID::C)))
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return;
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if (en_sig != assign_map(cell->getPort(ID::E)))
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return;
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goto matching_dff;
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}
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if (0) {
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matching_dff:
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RTLIL::SigSpec sig_d = cell->getPort(ID::D);
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RTLIL::SigSpec sig_q = cell->getPort(ID::Q);
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if (keepff)
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for (auto &c : sig_q.chunks())
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if (c.wire != nullptr)
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c.wire->attributes[ID::keep] = 1;
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assign_map.apply(sig_d);
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assign_map.apply(sig_q);
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map_signal(sig_q, G(FF), map_signal(sig_d));
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module->remove(cell);
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return;
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}
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if (cell->type.in(ID($_BUF_), ID($_NOT_)))
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{
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RTLIL::SigSpec sig_a = cell->getPort(ID::A);
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RTLIL::SigSpec sig_y = cell->getPort(ID::Y);
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assign_map.apply(sig_a);
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assign_map.apply(sig_y);
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map_signal(sig_y, cell->type == ID($_BUF_) ? G(BUF) : G(NOT), map_signal(sig_a));
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module->remove(cell);
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return;
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}
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if (cell->type.in(ID($_AND_), ID($_NAND_), ID($_OR_), ID($_NOR_), ID($_XOR_), ID($_XNOR_), ID($_ANDNOT_), ID($_ORNOT_)))
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{
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RTLIL::SigSpec sig_a = cell->getPort(ID::A);
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RTLIL::SigSpec sig_b = cell->getPort(ID::B);
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RTLIL::SigSpec sig_y = cell->getPort(ID::Y);
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assign_map.apply(sig_a);
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assign_map.apply(sig_b);
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assign_map.apply(sig_y);
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int mapped_a = map_signal(sig_a);
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int mapped_b = map_signal(sig_b);
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if (cell->type == ID($_AND_))
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map_signal(sig_y, G(AND), mapped_a, mapped_b);
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else if (cell->type == ID($_NAND_))
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map_signal(sig_y, G(NAND), mapped_a, mapped_b);
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else if (cell->type == ID($_OR_))
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map_signal(sig_y, G(OR), mapped_a, mapped_b);
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else if (cell->type == ID($_NOR_))
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map_signal(sig_y, G(NOR), mapped_a, mapped_b);
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else if (cell->type == ID($_XOR_))
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map_signal(sig_y, G(XOR), mapped_a, mapped_b);
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else if (cell->type == ID($_XNOR_))
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map_signal(sig_y, G(XNOR), mapped_a, mapped_b);
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else if (cell->type == ID($_ANDNOT_))
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map_signal(sig_y, G(ANDNOT), mapped_a, mapped_b);
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else if (cell->type == ID($_ORNOT_))
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map_signal(sig_y, G(ORNOT), mapped_a, mapped_b);
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else
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log_abort();
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module->remove(cell);
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return;
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}
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if (cell->type.in(ID($_MUX_), ID($_NMUX_)))
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{
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RTLIL::SigSpec sig_a = cell->getPort(ID::A);
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RTLIL::SigSpec sig_b = cell->getPort(ID::B);
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RTLIL::SigSpec sig_s = cell->getPort(ID::S);
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RTLIL::SigSpec sig_y = cell->getPort(ID::Y);
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assign_map.apply(sig_a);
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assign_map.apply(sig_b);
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assign_map.apply(sig_s);
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assign_map.apply(sig_y);
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int mapped_a = map_signal(sig_a);
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int mapped_b = map_signal(sig_b);
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int mapped_s = map_signal(sig_s);
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map_signal(sig_y, cell->type == ID($_MUX_) ? G(MUX) : G(NMUX), mapped_a, mapped_b, mapped_s);
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module->remove(cell);
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return;
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}
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if (cell->type.in(ID($_AOI3_), ID($_OAI3_)))
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{
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RTLIL::SigSpec sig_a = cell->getPort(ID::A);
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RTLIL::SigSpec sig_b = cell->getPort(ID::B);
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RTLIL::SigSpec sig_c = cell->getPort(ID::C);
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RTLIL::SigSpec sig_y = cell->getPort(ID::Y);
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assign_map.apply(sig_a);
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assign_map.apply(sig_b);
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assign_map.apply(sig_c);
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assign_map.apply(sig_y);
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int mapped_a = map_signal(sig_a);
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int mapped_b = map_signal(sig_b);
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int mapped_c = map_signal(sig_c);
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map_signal(sig_y, cell->type == ID($_AOI3_) ? G(AOI3) : G(OAI3), mapped_a, mapped_b, mapped_c);
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module->remove(cell);
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return;
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}
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if (cell->type.in(ID($_AOI4_), ID($_OAI4_)))
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{
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RTLIL::SigSpec sig_a = cell->getPort(ID::A);
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RTLIL::SigSpec sig_b = cell->getPort(ID::B);
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RTLIL::SigSpec sig_c = cell->getPort(ID::C);
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RTLIL::SigSpec sig_d = cell->getPort(ID::D);
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RTLIL::SigSpec sig_y = cell->getPort(ID::Y);
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assign_map.apply(sig_a);
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assign_map.apply(sig_b);
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assign_map.apply(sig_c);
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assign_map.apply(sig_d);
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assign_map.apply(sig_y);
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int mapped_a = map_signal(sig_a);
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int mapped_b = map_signal(sig_b);
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int mapped_c = map_signal(sig_c);
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int mapped_d = map_signal(sig_d);
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map_signal(sig_y, cell->type == ID($_AOI4_) ? G(AOI4) : G(OAI4), mapped_a, mapped_b, mapped_c, mapped_d);
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module->remove(cell);
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return;
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}
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}
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std::string remap_name(RTLIL::IdString abc_name, RTLIL::Wire **orig_wire = nullptr)
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{
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std::string abc_sname = abc_name.substr(1);
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bool isnew = false;
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if (abc_sname.compare(0, 4, "new_") == 0)
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{
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abc_sname.erase(0, 4);
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isnew = true;
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}
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if (abc_sname.compare(0, 5, "ys__n") == 0)
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{
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abc_sname.erase(0, 5);
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if (std::isdigit(abc_sname.at(0)))
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{
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int sid = std::atoi(abc_sname.c_str());
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size_t postfix_start = abc_sname.find_first_not_of("0123456789");
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std::string postfix = postfix_start != std::string::npos ? abc_sname.substr(postfix_start) : "";
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if (sid < GetSize(signal_list))
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{
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auto sig = signal_list.at(sid);
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if (sig.bit.wire != nullptr)
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{
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std::string s = stringf("$abc$%d$%s", map_autoidx, sig.bit.wire->name.c_str()+1);
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if (sig.bit.wire->width != 1)
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s += stringf("[%d]", sig.bit.offset);
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if (isnew)
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s += "_new";
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s += postfix;
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if (orig_wire != nullptr)
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*orig_wire = sig.bit.wire;
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return s;
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}
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}
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}
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}
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return stringf("$abc$%d$%s", map_autoidx, abc_name.c_str()+1);
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}
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void dump_loop_graph(FILE *f, int &nr, std::map<int, std::set<int>> &edges, std::set<int> &workpool, std::vector<int> &in_counts)
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{
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if (f == nullptr)
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return;
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log("Dumping loop state graph to slide %d.\n", ++nr);
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fprintf(f, "digraph \"slide%d\" {\n", nr);
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fprintf(f, " label=\"slide%d\";\n", nr);
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fprintf(f, " rankdir=\"TD\";\n");
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std::set<int> nodes;
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for (auto &e : edges) {
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nodes.insert(e.first);
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for (auto n : e.second)
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nodes.insert(n);
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}
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for (auto n : nodes)
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fprintf(f, " ys__n%d [label=\"%s\\nid=%d, count=%d\"%s];\n", n, log_signal(signal_list[n].bit),
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n, in_counts[n], workpool.count(n) ? ", shape=box" : "");
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for (auto &e : edges)
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for (auto n : e.second)
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fprintf(f, " ys__n%d -> ys__n%d;\n", e.first, n);
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fprintf(f, "}\n");
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}
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void handle_loops()
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{
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// http://en.wikipedia.org/wiki/Topological_sorting
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// (Kahn, Arthur B. (1962), "Topological sorting of large networks")
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std::map<int, std::set<int>> edges;
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std::vector<int> in_edges_count(signal_list.size());
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std::set<int> workpool;
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FILE *dot_f = nullptr;
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int dot_nr = 0;
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// uncomment for troubleshooting the loop detection code
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// dot_f = fopen("test.dot", "w");
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for (auto &g : signal_list) {
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if (g.type == G(NONE) || g.type == G(FF)) {
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workpool.insert(g.id);
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} else {
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if (g.in1 >= 0) {
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edges[g.in1].insert(g.id);
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in_edges_count[g.id]++;
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}
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if (g.in2 >= 0 && g.in2 != g.in1) {
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edges[g.in2].insert(g.id);
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in_edges_count[g.id]++;
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}
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if (g.in3 >= 0 && g.in3 != g.in2 && g.in3 != g.in1) {
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edges[g.in3].insert(g.id);
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in_edges_count[g.id]++;
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}
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if (g.in4 >= 0 && g.in4 != g.in3 && g.in4 != g.in2 && g.in4 != g.in1) {
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edges[g.in4].insert(g.id);
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in_edges_count[g.id]++;
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}
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}
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}
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dump_loop_graph(dot_f, dot_nr, edges, workpool, in_edges_count);
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while (workpool.size() > 0)
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{
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int id = *workpool.begin();
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workpool.erase(id);
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// log("Removing non-loop node %d from graph: %s\n", id, log_signal(signal_list[id].bit));
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for (int id2 : edges[id]) {
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log_assert(in_edges_count[id2] > 0);
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if (--in_edges_count[id2] == 0)
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workpool.insert(id2);
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}
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edges.erase(id);
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dump_loop_graph(dot_f, dot_nr, edges, workpool, in_edges_count);
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while (workpool.size() == 0)
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{
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if (edges.size() == 0)
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break;
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int id1 = edges.begin()->first;
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for (auto &edge_it : edges) {
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int id2 = edge_it.first;
|
|
RTLIL::Wire *w1 = signal_list[id1].bit.wire;
|
|
RTLIL::Wire *w2 = signal_list[id2].bit.wire;
|
|
if (w1 == nullptr)
|
|
id1 = id2;
|
|
else if (w2 == nullptr)
|
|
continue;
|
|
else if (w1->name[0] == '$' && w2->name[0] == '\\')
|
|
id1 = id2;
|
|
else if (w1->name[0] == '\\' && w2->name[0] == '$')
|
|
continue;
|
|
else if (edges[id1].size() < edges[id2].size())
|
|
id1 = id2;
|
|
else if (edges[id1].size() > edges[id2].size())
|
|
continue;
|
|
else if (w2->name.str() < w1->name.str())
|
|
id1 = id2;
|
|
}
|
|
|
|
if (edges[id1].size() == 0) {
|
|
edges.erase(id1);
|
|
continue;
|
|
}
|
|
|
|
log_assert(signal_list[id1].bit.wire != nullptr);
|
|
|
|
std::stringstream sstr;
|
|
sstr << "$abcloop$" << (autoidx++);
|
|
RTLIL::Wire *wire = module->addWire(sstr.str());
|
|
|
|
bool first_line = true;
|
|
for (int id2 : edges[id1]) {
|
|
if (first_line)
|
|
log("Breaking loop using new signal %s: %s -> %s\n", log_signal(RTLIL::SigSpec(wire)),
|
|
log_signal(signal_list[id1].bit), log_signal(signal_list[id2].bit));
|
|
else
|
|
log(" %*s %s -> %s\n", int(strlen(log_signal(RTLIL::SigSpec(wire)))), "",
|
|
log_signal(signal_list[id1].bit), log_signal(signal_list[id2].bit));
|
|
first_line = false;
|
|
}
|
|
|
|
int id3 = map_signal(RTLIL::SigSpec(wire));
|
|
signal_list[id1].is_port = true;
|
|
signal_list[id3].is_port = true;
|
|
log_assert(id3 == int(in_edges_count.size()));
|
|
in_edges_count.push_back(0);
|
|
workpool.insert(id3);
|
|
|
|
for (int id2 : edges[id1]) {
|
|
if (signal_list[id2].in1 == id1)
|
|
signal_list[id2].in1 = id3;
|
|
if (signal_list[id2].in2 == id1)
|
|
signal_list[id2].in2 = id3;
|
|
if (signal_list[id2].in3 == id1)
|
|
signal_list[id2].in3 = id3;
|
|
if (signal_list[id2].in4 == id1)
|
|
signal_list[id2].in4 = id3;
|
|
}
|
|
edges[id1].swap(edges[id3]);
|
|
|
|
module->connect(RTLIL::SigSig(signal_list[id3].bit, signal_list[id1].bit));
|
|
dump_loop_graph(dot_f, dot_nr, edges, workpool, in_edges_count);
|
|
}
|
|
}
|
|
|
|
if (dot_f != nullptr)
|
|
fclose(dot_f);
|
|
}
|
|
|
|
std::string add_echos_to_abc_cmd(std::string str)
|
|
{
|
|
std::string new_str, token;
|
|
for (size_t i = 0; i < str.size(); i++) {
|
|
token += str[i];
|
|
if (str[i] == ';') {
|
|
while (i+1 < str.size() && str[i+1] == ' ')
|
|
i++;
|
|
new_str += "echo + " + token + " " + token + " ";
|
|
token.clear();
|
|
}
|
|
}
|
|
|
|
if (!token.empty()) {
|
|
if (!new_str.empty())
|
|
new_str += "echo + " + token + "; ";
|
|
new_str += token;
|
|
}
|
|
|
|
return new_str;
|
|
}
|
|
|
|
std::string fold_abc_cmd(std::string str)
|
|
{
|
|
std::string token, new_str = " ";
|
|
int char_counter = 10;
|
|
|
|
for (size_t i = 0; i <= str.size(); i++) {
|
|
if (i < str.size())
|
|
token += str[i];
|
|
if (i == str.size() || str[i] == ';') {
|
|
if (char_counter + token.size() > 75)
|
|
new_str += "\n ", char_counter = 14;
|
|
new_str += token, char_counter += token.size();
|
|
token.clear();
|
|
}
|
|
}
|
|
|
|
return new_str;
|
|
}
|
|
|
|
std::string replace_tempdir(std::string text, std::string tempdir_name, bool show_tempdir)
|
|
{
|
|
if (show_tempdir)
|
|
return text;
|
|
|
|
while (1) {
|
|
size_t pos = text.find(tempdir_name);
|
|
if (pos == std::string::npos)
|
|
break;
|
|
text = text.substr(0, pos) + "<abc-temp-dir>" + text.substr(pos + GetSize(tempdir_name));
|
|
}
|
|
|
|
std::string selfdir_name = proc_self_dirname();
|
|
if (selfdir_name != "/") {
|
|
while (1) {
|
|
size_t pos = text.find(selfdir_name);
|
|
if (pos == std::string::npos)
|
|
break;
|
|
text = text.substr(0, pos) + "<yosys-exe-dir>/" + text.substr(pos + GetSize(selfdir_name));
|
|
}
|
|
}
|
|
|
|
return text;
|
|
}
|
|
|
|
struct abc_output_filter
|
|
{
|
|
bool got_cr;
|
|
int escape_seq_state;
|
|
std::string linebuf;
|
|
std::string tempdir_name;
|
|
bool show_tempdir;
|
|
|
|
abc_output_filter(std::string tempdir_name, bool show_tempdir) : tempdir_name(tempdir_name), show_tempdir(show_tempdir)
|
|
{
|
|
got_cr = false;
|
|
escape_seq_state = 0;
|
|
}
|
|
|
|
void next_char(char ch)
|
|
{
|
|
if (escape_seq_state == 0 && ch == '\033') {
|
|
escape_seq_state = 1;
|
|
return;
|
|
}
|
|
if (escape_seq_state == 1) {
|
|
escape_seq_state = ch == '[' ? 2 : 0;
|
|
return;
|
|
}
|
|
if (escape_seq_state == 2) {
|
|
if ((ch < '0' || '9' < ch) && ch != ';')
|
|
escape_seq_state = 0;
|
|
return;
|
|
}
|
|
escape_seq_state = 0;
|
|
if (ch == '\r') {
|
|
got_cr = true;
|
|
return;
|
|
}
|
|
if (ch == '\n') {
|
|
log("ABC: %s\n", replace_tempdir(linebuf, tempdir_name, show_tempdir).c_str());
|
|
got_cr = false, linebuf.clear();
|
|
return;
|
|
}
|
|
if (got_cr)
|
|
got_cr = false, linebuf.clear();
|
|
linebuf += ch;
|
|
}
|
|
|
|
void next_line(const std::string &line)
|
|
{
|
|
int pi, po;
|
|
if (sscanf(line.c_str(), "Start-point = pi%d. End-point = po%d.", &pi, &po) == 2) {
|
|
log("ABC: Start-point = pi%d (%s). End-point = po%d (%s).\n",
|
|
pi, pi_map.count(pi) ? pi_map.at(pi).c_str() : "???",
|
|
po, po_map.count(po) ? po_map.at(po).c_str() : "???");
|
|
return;
|
|
}
|
|
|
|
for (char ch : line)
|
|
next_char(ch);
|
|
}
|
|
};
|
|
|
|
void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::string script_file, std::string exe_file,
|
|
std::vector<std::string> &liberty_files, std::vector<std::string> &genlib_files, std::string constr_file,
|
|
bool cleanup, vector<int> lut_costs, bool dff_mode, std::string clk_str, bool keepff, std::string delay_target,
|
|
std::string sop_inputs, std::string sop_products, std::string lutin_shared, bool fast_mode,
|
|
const std::vector<RTLIL::Cell*> &cells, bool show_tempdir, bool sop_mode, bool abc_dress)
|
|
{
|
|
module = current_module;
|
|
map_autoidx = autoidx++;
|
|
|
|
signal_map.clear();
|
|
signal_list.clear();
|
|
pi_map.clear();
|
|
po_map.clear();
|
|
recover_init = false;
|
|
|
|
if (clk_str != "$")
|
|
{
|
|
clk_polarity = true;
|
|
clk_sig = RTLIL::SigSpec();
|
|
|
|
en_polarity = true;
|
|
en_sig = RTLIL::SigSpec();
|
|
}
|
|
|
|
if (!clk_str.empty() && clk_str != "$")
|
|
{
|
|
if (clk_str.find(',') != std::string::npos) {
|
|
int pos = clk_str.find(',');
|
|
std::string en_str = clk_str.substr(pos+1);
|
|
clk_str = clk_str.substr(0, pos);
|
|
if (en_str[0] == '!') {
|
|
en_polarity = false;
|
|
en_str = en_str.substr(1);
|
|
}
|
|
if (module->wire(RTLIL::escape_id(en_str)) != nullptr)
|
|
en_sig = assign_map(module->wire(RTLIL::escape_id(en_str)));
|
|
}
|
|
if (clk_str[0] == '!') {
|
|
clk_polarity = false;
|
|
clk_str = clk_str.substr(1);
|
|
}
|
|
if (module->wire(RTLIL::escape_id(clk_str)) != nullptr)
|
|
clk_sig = assign_map(module->wire(RTLIL::escape_id(clk_str)));
|
|
}
|
|
|
|
if (dff_mode && clk_sig.empty())
|
|
log_cmd_error("Clock domain %s not found.\n", clk_str.c_str());
|
|
|
|
std::string tempdir_name = "/tmp/" + proc_program_prefix()+ "yosys-abc-XXXXXX";
|
|
if (!cleanup)
|
|
tempdir_name[0] = tempdir_name[4] = '_';
|
|
tempdir_name = make_temp_dir(tempdir_name);
|
|
log_header(design, "Extracting gate netlist of module `%s' to `%s/input.blif'..\n",
|
|
module->name.c_str(), replace_tempdir(tempdir_name, tempdir_name, show_tempdir).c_str());
|
|
|
|
std::string abc_script = stringf("read_blif %s/input.blif; ", tempdir_name.c_str());
|
|
|
|
if (!liberty_files.empty() || !genlib_files.empty()) {
|
|
for (std::string liberty_file : liberty_files)
|
|
abc_script += stringf("read_lib -w %s; ", liberty_file.c_str());
|
|
for (std::string liberty_file : genlib_files)
|
|
abc_script += stringf("read_library %s; ", liberty_file.c_str());
|
|
if (!constr_file.empty())
|
|
abc_script += stringf("read_constr -v %s; ", constr_file.c_str());
|
|
} else
|
|
if (!lut_costs.empty())
|
|
abc_script += stringf("read_lut %s/lutdefs.txt; ", tempdir_name.c_str());
|
|
else
|
|
abc_script += stringf("read_library %s/stdcells.genlib; ", tempdir_name.c_str());
|
|
|
|
if (!script_file.empty()) {
|
|
if (script_file[0] == '+') {
|
|
for (size_t i = 1; i < script_file.size(); i++)
|
|
if (script_file[i] == '\'')
|
|
abc_script += "'\\''";
|
|
else if (script_file[i] == ',')
|
|
abc_script += " ";
|
|
else
|
|
abc_script += script_file[i];
|
|
} else
|
|
abc_script += stringf("source %s", script_file.c_str());
|
|
} else if (!lut_costs.empty()) {
|
|
bool all_luts_cost_same = true;
|
|
for (int this_cost : lut_costs)
|
|
if (this_cost != lut_costs.front())
|
|
all_luts_cost_same = false;
|
|
abc_script += fast_mode ? ABC_FAST_COMMAND_LUT : ABC_COMMAND_LUT;
|
|
if (all_luts_cost_same && !fast_mode)
|
|
abc_script += "; lutpack {S}";
|
|
} else if (!liberty_files.empty() || !genlib_files.empty())
|
|
abc_script += constr_file.empty() ? (fast_mode ? ABC_FAST_COMMAND_LIB : ABC_COMMAND_LIB) : (fast_mode ? ABC_FAST_COMMAND_CTR : ABC_COMMAND_CTR);
|
|
else if (sop_mode)
|
|
abc_script += fast_mode ? ABC_FAST_COMMAND_SOP : ABC_COMMAND_SOP;
|
|
else
|
|
abc_script += fast_mode ? ABC_FAST_COMMAND_DFL : ABC_COMMAND_DFL;
|
|
|
|
if (script_file.empty() && !delay_target.empty())
|
|
for (size_t pos = abc_script.find("dretime;"); pos != std::string::npos; pos = abc_script.find("dretime;", pos+1))
|
|
abc_script = abc_script.substr(0, pos) + "dretime; retime -o {D};" + abc_script.substr(pos+8);
|
|
|
|
for (size_t pos = abc_script.find("{D}"); pos != std::string::npos; pos = abc_script.find("{D}", pos))
|
|
abc_script = abc_script.substr(0, pos) + delay_target + abc_script.substr(pos+3);
|
|
|
|
for (size_t pos = abc_script.find("{I}"); pos != std::string::npos; pos = abc_script.find("{D}", pos))
|
|
abc_script = abc_script.substr(0, pos) + sop_inputs + abc_script.substr(pos+3);
|
|
|
|
for (size_t pos = abc_script.find("{P}"); pos != std::string::npos; pos = abc_script.find("{D}", pos))
|
|
abc_script = abc_script.substr(0, pos) + sop_products + abc_script.substr(pos+3);
|
|
|
|
for (size_t pos = abc_script.find("{S}"); pos != std::string::npos; pos = abc_script.find("{S}", pos))
|
|
abc_script = abc_script.substr(0, pos) + lutin_shared + abc_script.substr(pos+3);
|
|
if (abc_dress)
|
|
abc_script += "; dress";
|
|
abc_script += stringf("; write_blif %s/output.blif", tempdir_name.c_str());
|
|
abc_script = add_echos_to_abc_cmd(abc_script);
|
|
|
|
for (size_t i = 0; i+1 < abc_script.size(); i++)
|
|
if (abc_script[i] == ';' && abc_script[i+1] == ' ')
|
|
abc_script[i+1] = '\n';
|
|
|
|
std::string buffer = stringf("%s/abc.script", tempdir_name.c_str());
|
|
FILE *f = fopen(buffer.c_str(), "wt");
|
|
if (f == nullptr)
|
|
log_error("Opening %s for writing failed: %s\n", buffer.c_str(), strerror(errno));
|
|
fprintf(f, "%s\n", abc_script.c_str());
|
|
fclose(f);
|
|
|
|
if (dff_mode || !clk_str.empty())
|
|
{
|
|
if (clk_sig.size() == 0)
|
|
log("No%s clock domain found. Not extracting any FF cells.\n", clk_str.empty() ? "" : " matching");
|
|
else {
|
|
log("Found%s %s clock domain: %s", clk_str.empty() ? "" : " matching", clk_polarity ? "posedge" : "negedge", log_signal(clk_sig));
|
|
if (en_sig.size() != 0)
|
|
log(", enabled by %s%s", en_polarity ? "" : "!", log_signal(en_sig));
|
|
log("\n");
|
|
}
|
|
}
|
|
|
|
for (auto c : cells)
|
|
extract_cell(c, keepff);
|
|
|
|
for (auto wire : module->wires()) {
|
|
if (wire->port_id > 0 || wire->get_bool_attribute(ID::keep))
|
|
mark_port(wire);
|
|
}
|
|
|
|
for (auto cell : module->cells())
|
|
for (auto &port_it : cell->connections())
|
|
mark_port(port_it.second);
|
|
|
|
if (clk_sig.size() != 0)
|
|
mark_port(clk_sig);
|
|
|
|
if (en_sig.size() != 0)
|
|
mark_port(en_sig);
|
|
|
|
handle_loops();
|
|
|
|
buffer = stringf("%s/input.blif", tempdir_name.c_str());
|
|
f = fopen(buffer.c_str(), "wt");
|
|
if (f == nullptr)
|
|
log_error("Opening %s for writing failed: %s\n", buffer.c_str(), strerror(errno));
|
|
|
|
fprintf(f, ".model netlist\n");
|
|
|
|
int count_input = 0;
|
|
fprintf(f, ".inputs");
|
|
for (auto &si : signal_list) {
|
|
if (!si.is_port || si.type != G(NONE))
|
|
continue;
|
|
fprintf(f, " ys__n%d", si.id);
|
|
pi_map[count_input++] = log_signal(si.bit);
|
|
}
|
|
if (count_input == 0)
|
|
fprintf(f, " dummy_input\n");
|
|
fprintf(f, "\n");
|
|
|
|
int count_output = 0;
|
|
fprintf(f, ".outputs");
|
|
for (auto &si : signal_list) {
|
|
if (!si.is_port || si.type == G(NONE))
|
|
continue;
|
|
fprintf(f, " ys__n%d", si.id);
|
|
po_map[count_output++] = log_signal(si.bit);
|
|
}
|
|
fprintf(f, "\n");
|
|
|
|
for (auto &si : signal_list)
|
|
fprintf(f, "# ys__n%-5d %s\n", si.id, log_signal(si.bit));
|
|
|
|
for (auto &si : signal_list) {
|
|
if (si.bit.wire == nullptr) {
|
|
fprintf(f, ".names ys__n%d\n", si.id);
|
|
if (si.bit == RTLIL::State::S1)
|
|
fprintf(f, "1\n");
|
|
}
|
|
}
|
|
|
|
int count_gates = 0;
|
|
for (auto &si : signal_list) {
|
|
if (si.type == G(BUF)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d\n", si.in1, si.id);
|
|
fprintf(f, "1 1\n");
|
|
} else if (si.type == G(NOT)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d\n", si.in1, si.id);
|
|
fprintf(f, "0 1\n");
|
|
} else if (si.type == G(AND)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "11 1\n");
|
|
} else if (si.type == G(NAND)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "0- 1\n");
|
|
fprintf(f, "-0 1\n");
|
|
} else if (si.type == G(OR)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "-1 1\n");
|
|
fprintf(f, "1- 1\n");
|
|
} else if (si.type == G(NOR)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "00 1\n");
|
|
} else if (si.type == G(XOR)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "01 1\n");
|
|
fprintf(f, "10 1\n");
|
|
} else if (si.type == G(XNOR)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "00 1\n");
|
|
fprintf(f, "11 1\n");
|
|
} else if (si.type == G(ANDNOT)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "10 1\n");
|
|
} else if (si.type == G(ORNOT)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.id);
|
|
fprintf(f, "1- 1\n");
|
|
fprintf(f, "-0 1\n");
|
|
} else if (si.type == G(MUX)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id);
|
|
fprintf(f, "1-0 1\n");
|
|
fprintf(f, "-11 1\n");
|
|
} else if (si.type == G(NMUX)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id);
|
|
fprintf(f, "0-0 1\n");
|
|
fprintf(f, "-01 1\n");
|
|
} else if (si.type == G(AOI3)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id);
|
|
fprintf(f, "-00 1\n");
|
|
fprintf(f, "0-0 1\n");
|
|
} else if (si.type == G(OAI3)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.id);
|
|
fprintf(f, "00- 1\n");
|
|
fprintf(f, "--0 1\n");
|
|
} else if (si.type == G(AOI4)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.in4, si.id);
|
|
fprintf(f, "-0-0 1\n");
|
|
fprintf(f, "-00- 1\n");
|
|
fprintf(f, "0--0 1\n");
|
|
fprintf(f, "0-0- 1\n");
|
|
} else if (si.type == G(OAI4)) {
|
|
fprintf(f, ".names ys__n%d ys__n%d ys__n%d ys__n%d ys__n%d\n", si.in1, si.in2, si.in3, si.in4, si.id);
|
|
fprintf(f, "00-- 1\n");
|
|
fprintf(f, "--00 1\n");
|
|
} else if (si.type == G(FF)) {
|
|
if (si.init == State::S0 || si.init == State::S1) {
|
|
fprintf(f, ".latch ys__n%d ys__n%d %d\n", si.in1, si.id, si.init == State::S1 ? 1 : 0);
|
|
recover_init = true;
|
|
} else
|
|
fprintf(f, ".latch ys__n%d ys__n%d 2\n", si.in1, si.id);
|
|
} else if (si.type != G(NONE))
|
|
log_abort();
|
|
if (si.type != G(NONE))
|
|
count_gates++;
|
|
}
|
|
|
|
fprintf(f, ".end\n");
|
|
fclose(f);
|
|
|
|
log("Extracted %d gates and %d wires to a netlist network with %d inputs and %d outputs.\n",
|
|
count_gates, GetSize(signal_list), count_input, count_output);
|
|
log_push();
|
|
if (count_output > 0)
|
|
{
|
|
log_header(design, "Executing ABC.\n");
|
|
|
|
auto &cell_cost = cmos_cost ? CellCosts::cmos_gate_cost() : CellCosts::default_gate_cost();
|
|
|
|
buffer = stringf("%s/stdcells.genlib", tempdir_name.c_str());
|
|
f = fopen(buffer.c_str(), "wt");
|
|
if (f == nullptr)
|
|
log_error("Opening %s for writing failed: %s\n", buffer.c_str(), strerror(errno));
|
|
fprintf(f, "GATE ZERO 1 Y=CONST0;\n");
|
|
fprintf(f, "GATE ONE 1 Y=CONST1;\n");
|
|
fprintf(f, "GATE BUF %d Y=A; PIN * NONINV 1 999 1 0 1 0\n", cell_cost.at(ID($_BUF_)));
|
|
fprintf(f, "GATE NOT %d Y=!A; PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_NOT_)));
|
|
if (enabled_gates.count("AND"))
|
|
fprintf(f, "GATE AND %d Y=A*B; PIN * NONINV 1 999 1 0 1 0\n", cell_cost.at(ID($_AND_)));
|
|
if (enabled_gates.count("NAND"))
|
|
fprintf(f, "GATE NAND %d Y=!(A*B); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_NAND_)));
|
|
if (enabled_gates.count("OR"))
|
|
fprintf(f, "GATE OR %d Y=A+B; PIN * NONINV 1 999 1 0 1 0\n", cell_cost.at(ID($_OR_)));
|
|
if (enabled_gates.count("NOR"))
|
|
fprintf(f, "GATE NOR %d Y=!(A+B); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_NOR_)));
|
|
if (enabled_gates.count("XOR"))
|
|
fprintf(f, "GATE XOR %d Y=(A*!B)+(!A*B); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_XOR_)));
|
|
if (enabled_gates.count("XNOR"))
|
|
fprintf(f, "GATE XNOR %d Y=(A*B)+(!A*!B); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_XNOR_)));
|
|
if (enabled_gates.count("ANDNOT"))
|
|
fprintf(f, "GATE ANDNOT %d Y=A*!B; PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_ANDNOT_)));
|
|
if (enabled_gates.count("ORNOT"))
|
|
fprintf(f, "GATE ORNOT %d Y=A+!B; PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_ORNOT_)));
|
|
if (enabled_gates.count("AOI3"))
|
|
fprintf(f, "GATE AOI3 %d Y=!((A*B)+C); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_AOI3_)));
|
|
if (enabled_gates.count("OAI3"))
|
|
fprintf(f, "GATE OAI3 %d Y=!((A+B)*C); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_OAI3_)));
|
|
if (enabled_gates.count("AOI4"))
|
|
fprintf(f, "GATE AOI4 %d Y=!((A*B)+(C*D)); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_AOI4_)));
|
|
if (enabled_gates.count("OAI4"))
|
|
fprintf(f, "GATE OAI4 %d Y=!((A+B)*(C+D)); PIN * INV 1 999 1 0 1 0\n", cell_cost.at(ID($_OAI4_)));
|
|
if (enabled_gates.count("MUX"))
|
|
fprintf(f, "GATE MUX %d Y=(A*B)+(S*B)+(!S*A); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_MUX_)));
|
|
if (enabled_gates.count("NMUX"))
|
|
fprintf(f, "GATE NMUX %d Y=!((A*B)+(S*B)+(!S*A)); PIN * UNKNOWN 1 999 1 0 1 0\n", cell_cost.at(ID($_NMUX_)));
|
|
if (map_mux4)
|
|
fprintf(f, "GATE MUX4 %d Y=(!S*!T*A)+(S*!T*B)+(!S*T*C)+(S*T*D); PIN * UNKNOWN 1 999 1 0 1 0\n", 2*cell_cost.at(ID($_MUX_)));
|
|
if (map_mux8)
|
|
fprintf(f, "GATE MUX8 %d Y=(!S*!T*!U*A)+(S*!T*!U*B)+(!S*T*!U*C)+(S*T*!U*D)+(!S*!T*U*E)+(S*!T*U*F)+(!S*T*U*G)+(S*T*U*H); PIN * UNKNOWN 1 999 1 0 1 0\n", 4*cell_cost.at(ID($_MUX_)));
|
|
if (map_mux16)
|
|
fprintf(f, "GATE MUX16 %d Y=(!S*!T*!U*!V*A)+(S*!T*!U*!V*B)+(!S*T*!U*!V*C)+(S*T*!U*!V*D)+(!S*!T*U*!V*E)+(S*!T*U*!V*F)+(!S*T*U*!V*G)+(S*T*U*!V*H)+(!S*!T*!U*V*I)+(S*!T*!U*V*J)+(!S*T*!U*V*K)+(S*T*!U*V*L)+(!S*!T*U*V*M)+(S*!T*U*V*N)+(!S*T*U*V*O)+(S*T*U*V*P); PIN * UNKNOWN 1 999 1 0 1 0\n", 8*cell_cost.at(ID($_MUX_)));
|
|
fclose(f);
|
|
|
|
if (!lut_costs.empty()) {
|
|
buffer = stringf("%s/lutdefs.txt", tempdir_name.c_str());
|
|
f = fopen(buffer.c_str(), "wt");
|
|
if (f == nullptr)
|
|
log_error("Opening %s for writing failed: %s\n", buffer.c_str(), strerror(errno));
|
|
for (int i = 0; i < GetSize(lut_costs); i++)
|
|
fprintf(f, "%d %d.00 1.00\n", i+1, lut_costs.at(i));
|
|
fclose(f);
|
|
}
|
|
|
|
buffer = stringf("%s -s -f %s/abc.script 2>&1", exe_file.c_str(), tempdir_name.c_str());
|
|
log("Running ABC command: %s\n", replace_tempdir(buffer, tempdir_name, show_tempdir).c_str());
|
|
|
|
#ifndef YOSYS_LINK_ABC
|
|
abc_output_filter filt(tempdir_name, show_tempdir);
|
|
int ret = run_command(buffer, std::bind(&abc_output_filter::next_line, filt, std::placeholders::_1));
|
|
#else
|
|
// These needs to be mutable, supposedly due to getopt
|
|
char *abc_argv[5];
|
|
string tmp_script_name = stringf("%s/abc.script", tempdir_name.c_str());
|
|
abc_argv[0] = strdup(exe_file.c_str());
|
|
abc_argv[1] = strdup("-s");
|
|
abc_argv[2] = strdup("-f");
|
|
abc_argv[3] = strdup(tmp_script_name.c_str());
|
|
abc_argv[4] = 0;
|
|
int ret = Abc_RealMain(4, abc_argv);
|
|
free(abc_argv[0]);
|
|
free(abc_argv[1]);
|
|
free(abc_argv[2]);
|
|
free(abc_argv[3]);
|
|
#endif
|
|
if (ret != 0)
|
|
log_error("ABC: execution of command \"%s\" failed: return code %d.\n", buffer.c_str(), ret);
|
|
|
|
buffer = stringf("%s/%s", tempdir_name.c_str(), "output.blif");
|
|
std::ifstream ifs;
|
|
ifs.open(buffer);
|
|
if (ifs.fail())
|
|
log_error("Can't open ABC output file `%s'.\n", buffer.c_str());
|
|
|
|
bool builtin_lib = liberty_files.empty() && genlib_files.empty();
|
|
RTLIL::Design *mapped_design = new RTLIL::Design;
|
|
parse_blif(mapped_design, ifs, builtin_lib ? ID(DFF) : ID(_dff_), false, sop_mode);
|
|
|
|
ifs.close();
|
|
|
|
log_header(design, "Re-integrating ABC results.\n");
|
|
RTLIL::Module *mapped_mod = mapped_design->module(ID(netlist));
|
|
if (mapped_mod == nullptr)
|
|
log_error("ABC output file does not contain a module `netlist'.\n");
|
|
for (auto w : mapped_mod->wires()) {
|
|
RTLIL::Wire *orig_wire = nullptr;
|
|
RTLIL::Wire *wire = module->addWire(remap_name(w->name, &orig_wire));
|
|
if (orig_wire != nullptr && orig_wire->attributes.count(ID::src))
|
|
wire->attributes[ID::src] = orig_wire->attributes[ID::src];
|
|
if (markgroups) wire->attributes[ID::abcgroup] = map_autoidx;
|
|
design->select(module, wire);
|
|
}
|
|
|
|
std::map<std::string, int> cell_stats;
|
|
for (auto c : mapped_mod->cells())
|
|
{
|
|
if (builtin_lib)
|
|
{
|
|
cell_stats[RTLIL::unescape_id(c->type)]++;
|
|
if (c->type.in(ID(ZERO), ID(ONE))) {
|
|
RTLIL::SigSig conn;
|
|
RTLIL::IdString name_y = remap_name(c->getPort(ID::Y).as_wire()->name);
|
|
conn.first = module->wire(name_y);
|
|
conn.second = RTLIL::SigSpec(c->type == ID(ZERO) ? 0 : 1, 1);
|
|
module->connect(conn);
|
|
continue;
|
|
}
|
|
if (c->type == ID(BUF)) {
|
|
RTLIL::SigSig conn;
|
|
RTLIL::IdString name_y = remap_name(c->getPort(ID::Y).as_wire()->name);
|
|
RTLIL::IdString name_a = remap_name(c->getPort(ID::A).as_wire()->name);
|
|
conn.first = module->wire(name_y);
|
|
conn.second = module->wire(name_a);
|
|
module->connect(conn);
|
|
continue;
|
|
}
|
|
if (c->type == ID(NOT)) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_NOT_));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type.in(ID(AND), ID(OR), ID(XOR), ID(NAND), ID(NOR), ID(XNOR), ID(ANDNOT), ID(ORNOT))) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::B, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type.in(ID(MUX), ID(NMUX))) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::B, ID::S, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type == ID(MUX4)) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_MUX4_));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::B, ID::C, ID::D, ID::S, ID::T, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type == ID(MUX8)) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_MUX8_));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::B, ID::C, ID::D, ID::E, ID::F, ID::G, ID::H, ID::S, ID::T, ID::U, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type == ID(MUX16)) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), ID($_MUX16_));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::B, ID::C, ID::D, ID::E, ID::F, ID::G, ID::H, ID::I, ID::J, ID::K,
|
|
ID::L, ID::M, ID::N, ID::O, ID::P, ID::S, ID::T, ID::U, ID::V, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type.in(ID(AOI3), ID(OAI3))) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::B, ID::C, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type.in(ID(AOI4), ID(OAI4))) {
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), stringf("$_%s_", c->type.c_str()+1));
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::A, ID::B, ID::C, ID::D, ID::Y}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
if (c->type == ID(DFF)) {
|
|
log_assert(clk_sig.size() == 1);
|
|
RTLIL::Cell *cell;
|
|
if (en_sig.size() == 0) {
|
|
cell = module->addCell(remap_name(c->name), clk_polarity ? ID($_DFF_P_) : ID($_DFF_N_));
|
|
} else {
|
|
log_assert(en_sig.size() == 1);
|
|
cell = module->addCell(remap_name(c->name), stringf("$_DFFE_%c%c_", clk_polarity ? 'P' : 'N', en_polarity ? 'P' : 'N'));
|
|
cell->setPort(ID::E, en_sig);
|
|
}
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::D, ID::Q}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
cell->setPort(ID::C, clk_sig);
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
cell_stats[RTLIL::unescape_id(c->type)]++;
|
|
|
|
if (c->type.in(ID(_const0_), ID(_const1_))) {
|
|
RTLIL::SigSig conn;
|
|
conn.first = module->wire(remap_name(c->connections().begin()->second.as_wire()->name));
|
|
conn.second = RTLIL::SigSpec(c->type == ID(_const0_) ? 0 : 1, 1);
|
|
module->connect(conn);
|
|
continue;
|
|
}
|
|
|
|
if (c->type == ID(_dff_)) {
|
|
log_assert(clk_sig.size() == 1);
|
|
RTLIL::Cell *cell;
|
|
if (en_sig.size() == 0) {
|
|
cell = module->addCell(remap_name(c->name), clk_polarity ? ID($_DFF_P_) : ID($_DFF_N_));
|
|
} else {
|
|
log_assert(en_sig.size() == 1);
|
|
cell = module->addCell(remap_name(c->name), stringf("$_DFFE_%c%c_", clk_polarity ? 'P' : 'N', en_polarity ? 'P' : 'N'));
|
|
cell->setPort(ID::E, en_sig);
|
|
}
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
for (auto name : {ID::D, ID::Q}) {
|
|
RTLIL::IdString remapped_name = remap_name(c->getPort(name).as_wire()->name);
|
|
cell->setPort(name, module->wire(remapped_name));
|
|
}
|
|
cell->setPort(ID::C, clk_sig);
|
|
design->select(module, cell);
|
|
continue;
|
|
}
|
|
|
|
if (c->type == ID($lut) && GetSize(c->getPort(ID::A)) == 1 && c->getParam(ID::LUT).as_int() == 2) {
|
|
SigSpec my_a = module->wire(remap_name(c->getPort(ID::A).as_wire()->name));
|
|
SigSpec my_y = module->wire(remap_name(c->getPort(ID::Y).as_wire()->name));
|
|
module->connect(my_y, my_a);
|
|
continue;
|
|
}
|
|
|
|
RTLIL::Cell *cell = module->addCell(remap_name(c->name), c->type);
|
|
if (markgroups) cell->attributes[ID::abcgroup] = map_autoidx;
|
|
cell->parameters = c->parameters;
|
|
for (auto &conn : c->connections()) {
|
|
RTLIL::SigSpec newsig;
|
|
for (auto &c : conn.second.chunks()) {
|
|
if (c.width == 0)
|
|
continue;
|
|
log_assert(c.width == 1);
|
|
newsig.append(module->wire(remap_name(c.wire->name)));
|
|
}
|
|
cell->setPort(conn.first, newsig);
|
|
}
|
|
design->select(module, cell);
|
|
}
|
|
|
|
for (auto conn : mapped_mod->connections()) {
|
|
if (!conn.first.is_fully_const())
|
|
conn.first = module->wire(remap_name(conn.first.as_wire()->name));
|
|
if (!conn.second.is_fully_const())
|
|
conn.second = module->wire(remap_name(conn.second.as_wire()->name));
|
|
module->connect(conn);
|
|
}
|
|
|
|
if (recover_init)
|
|
for (auto wire : mapped_mod->wires()) {
|
|
if (wire->attributes.count(ID::init)) {
|
|
Wire *w = module->wire(remap_name(wire->name));
|
|
log_assert(w->attributes.count(ID::init) == 0);
|
|
w->attributes[ID::init] = wire->attributes.at(ID::init);
|
|
}
|
|
}
|
|
|
|
for (auto &it : cell_stats)
|
|
log("ABC RESULTS: %15s cells: %8d\n", it.first.c_str(), it.second);
|
|
int in_wires = 0, out_wires = 0;
|
|
for (auto &si : signal_list)
|
|
if (si.is_port) {
|
|
char buffer[100];
|
|
snprintf(buffer, 100, "\\ys__n%d", si.id);
|
|
RTLIL::SigSig conn;
|
|
if (si.type != G(NONE)) {
|
|
conn.first = si.bit;
|
|
conn.second = module->wire(remap_name(buffer));
|
|
out_wires++;
|
|
} else {
|
|
conn.first = module->wire(remap_name(buffer));
|
|
conn.second = si.bit;
|
|
in_wires++;
|
|
}
|
|
module->connect(conn);
|
|
}
|
|
log("ABC RESULTS: internal signals: %8d\n", int(signal_list.size()) - in_wires - out_wires);
|
|
log("ABC RESULTS: input signals: %8d\n", in_wires);
|
|
log("ABC RESULTS: output signals: %8d\n", out_wires);
|
|
|
|
delete mapped_design;
|
|
}
|
|
else
|
|
{
|
|
log("Don't call ABC as there is nothing to map.\n");
|
|
}
|
|
|
|
if (cleanup)
|
|
{
|
|
log("Removing temp directory.\n");
|
|
remove_directory(tempdir_name);
|
|
}
|
|
|
|
log_pop();
|
|
}
|
|
|
|
struct AbcPass : public Pass {
|
|
AbcPass() : Pass("abc", "use ABC for technology mapping") { }
|
|
void help() override
|
|
{
|
|
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
|
|
log("\n");
|
|
log(" abc [options] [selection]\n");
|
|
log("\n");
|
|
log("This pass uses the ABC tool [1] for technology mapping of yosys's internal gate\n");
|
|
log("library to a target architecture.\n");
|
|
log("\n");
|
|
log(" -exe <command>\n");
|
|
#ifdef ABCEXTERNAL
|
|
log(" use the specified command instead of \"" ABCEXTERNAL "\" to execute ABC.\n");
|
|
#else
|
|
log(" use the specified command instead of \"<yosys-bindir>/%syosys-abc\" to execute ABC.\n", proc_program_prefix().c_str());
|
|
#endif
|
|
log(" This can e.g. be used to call a specific version of ABC or a wrapper.\n");
|
|
log("\n");
|
|
log(" -script <file>\n");
|
|
log(" use the specified ABC script file instead of the default script.\n");
|
|
log("\n");
|
|
log(" if <file> starts with a plus sign (+), then the rest of the filename\n");
|
|
log(" string is interpreted as the command string to be passed to ABC. The\n");
|
|
log(" leading plus sign is removed and all commas (,) in the string are\n");
|
|
log(" replaced with blanks before the string is passed to ABC.\n");
|
|
log("\n");
|
|
log(" if no -script parameter is given, the following scripts are used:\n");
|
|
log("\n");
|
|
log(" for -liberty/-genlib without -constr:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_COMMAND_LIB).c_str());
|
|
log("\n");
|
|
log(" for -liberty/-genlib with -constr:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_COMMAND_CTR).c_str());
|
|
log("\n");
|
|
log(" for -lut/-luts (only one LUT size):\n");
|
|
log("%s\n", fold_abc_cmd(ABC_COMMAND_LUT "; lutpack {S}").c_str());
|
|
log("\n");
|
|
log(" for -lut/-luts (different LUT sizes):\n");
|
|
log("%s\n", fold_abc_cmd(ABC_COMMAND_LUT).c_str());
|
|
log("\n");
|
|
log(" for -sop:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_COMMAND_SOP).c_str());
|
|
log("\n");
|
|
log(" otherwise:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_COMMAND_DFL).c_str());
|
|
log("\n");
|
|
log(" -fast\n");
|
|
log(" use different default scripts that are slightly faster (at the cost\n");
|
|
log(" of output quality):\n");
|
|
log("\n");
|
|
log(" for -liberty/-genlib without -constr:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_LIB).c_str());
|
|
log("\n");
|
|
log(" for -liberty/-genlib with -constr:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_CTR).c_str());
|
|
log("\n");
|
|
log(" for -lut/-luts:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_LUT).c_str());
|
|
log("\n");
|
|
log(" for -sop:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_SOP).c_str());
|
|
log("\n");
|
|
log(" otherwise:\n");
|
|
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_DFL).c_str());
|
|
log("\n");
|
|
log(" -liberty <file>\n");
|
|
log(" generate netlists for the specified cell library (using the liberty\n");
|
|
log(" file format).\n");
|
|
log("\n");
|
|
log(" -genlib <file>\n");
|
|
log(" generate netlists for the specified cell library (using the SIS Genlib\n");
|
|
log(" file format).\n");
|
|
log("\n");
|
|
log(" -constr <file>\n");
|
|
log(" pass this file with timing constraints to ABC.\n");
|
|
log(" use with -liberty/-genlib.\n");
|
|
log("\n");
|
|
log(" a constr file contains two lines:\n");
|
|
log(" set_driving_cell <cell_name>\n");
|
|
log(" set_load <floating_point_number>\n");
|
|
log("\n");
|
|
log(" the set_driving_cell statement defines which cell type is assumed to\n");
|
|
log(" drive the primary inputs and the set_load statement sets the load in\n");
|
|
log(" femtofarads for each primary output.\n");
|
|
log("\n");
|
|
log(" -D <picoseconds>\n");
|
|
log(" set delay target. the string {D} in the default scripts above is\n");
|
|
log(" replaced by this option when used, and an empty string otherwise.\n");
|
|
log(" this also replaces 'dretime' with 'dretime; retime -o {D}' in the\n");
|
|
log(" default scripts above.\n");
|
|
log("\n");
|
|
log(" -I <num>\n");
|
|
log(" maximum number of SOP inputs.\n");
|
|
log(" (replaces {I} in the default scripts above)\n");
|
|
log("\n");
|
|
log(" -P <num>\n");
|
|
log(" maximum number of SOP products.\n");
|
|
log(" (replaces {P} in the default scripts above)\n");
|
|
log("\n");
|
|
log(" -S <num>\n");
|
|
log(" maximum number of LUT inputs shared.\n");
|
|
log(" (replaces {S} in the default scripts above, default: -S 1)\n");
|
|
log("\n");
|
|
log(" -lut <width>\n");
|
|
log(" generate netlist using luts of (max) the specified width.\n");
|
|
log("\n");
|
|
log(" -lut <w1>:<w2>\n");
|
|
log(" generate netlist using luts of (max) the specified width <w2>. All\n");
|
|
log(" luts with width <= <w1> have constant cost. for luts larger than <w1>\n");
|
|
log(" the area cost doubles with each additional input bit. the delay cost\n");
|
|
log(" is still constant for all lut widths.\n");
|
|
log("\n");
|
|
log(" -luts <cost1>,<cost2>,<cost3>,<sizeN>:<cost4-N>,..\n");
|
|
log(" generate netlist using luts. Use the specified costs for luts with 1,\n");
|
|
log(" 2, 3, .. inputs.\n");
|
|
log("\n");
|
|
log(" -sop\n");
|
|
log(" map to sum-of-product cells and inverters\n");
|
|
log("\n");
|
|
// log(" -mux4, -mux8, -mux16\n");
|
|
// log(" try to extract 4-input, 8-input, and/or 16-input muxes\n");
|
|
// log(" (ignored when used with -liberty/-genlib or -lut)\n");
|
|
// log("\n");
|
|
log(" -g type1,type2,...\n");
|
|
log(" Map to the specified list of gate types. Supported gates types are:\n");
|
|
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
|
|
log(" AND, NAND, OR, NOR, XOR, XNOR, ANDNOT, ORNOT, MUX,\n");
|
|
log(" NMUX, AOI3, OAI3, AOI4, OAI4.\n");
|
|
log(" (The NOT gate is always added to this list automatically.)\n");
|
|
log("\n");
|
|
log(" The following aliases can be used to reference common sets of gate types:\n");
|
|
log(" simple: AND OR XOR MUX\n");
|
|
log(" cmos2: NAND NOR\n");
|
|
log(" cmos3: NAND NOR AOI3 OAI3\n");
|
|
log(" cmos4: NAND NOR AOI3 OAI3 AOI4 OAI4\n");
|
|
log(" cmos: NAND NOR AOI3 OAI3 AOI4 OAI4 NMUX MUX XOR XNOR\n");
|
|
log(" gates: AND NAND OR NOR XOR XNOR ANDNOT ORNOT\n");
|
|
log(" aig: AND NAND OR NOR ANDNOT ORNOT\n");
|
|
log("\n");
|
|
log(" The alias 'all' represent the full set of all gate types.\n");
|
|
log("\n");
|
|
log(" Prefix a gate type with a '-' to remove it from the list. For example\n");
|
|
log(" the arguments 'AND,OR,XOR' and 'simple,-MUX' are equivalent.\n");
|
|
log("\n");
|
|
log(" The default is 'all,-NMUX,-AOI3,-OAI3,-AOI4,-OAI4'.\n");
|
|
log("\n");
|
|
log(" -dff\n");
|
|
log(" also pass $_DFF_?_ and $_DFFE_??_ cells through ABC. modules with many\n");
|
|
log(" clock domains are automatically partitioned in clock domains and each\n");
|
|
log(" domain is passed through ABC independently.\n");
|
|
log("\n");
|
|
log(" -clk [!]<clock-signal-name>[,[!]<enable-signal-name>]\n");
|
|
log(" use only the specified clock domain. this is like -dff, but only FF\n");
|
|
log(" cells that belong to the specified clock domain are used.\n");
|
|
log("\n");
|
|
log(" -keepff\n");
|
|
log(" set the \"keep\" attribute on flip-flop output wires. (and thus preserve\n");
|
|
log(" them, for example for equivalence checking.)\n");
|
|
log("\n");
|
|
log(" -nocleanup\n");
|
|
log(" when this option is used, the temporary files created by this pass\n");
|
|
log(" are not removed. this is useful for debugging.\n");
|
|
log("\n");
|
|
log(" -showtmp\n");
|
|
log(" print the temp dir name in log. usually this is suppressed so that the\n");
|
|
log(" command output is identical across runs.\n");
|
|
log("\n");
|
|
log(" -markgroups\n");
|
|
log(" set a 'abcgroup' attribute on all objects created by ABC. The value of\n");
|
|
log(" this attribute is a unique integer for each ABC process started. This\n");
|
|
log(" is useful for debugging the partitioning of clock domains.\n");
|
|
log("\n");
|
|
log(" -dress\n");
|
|
log(" run the 'dress' command after all other ABC commands. This aims to\n");
|
|
log(" preserve naming by an equivalence check between the original and post-ABC\n");
|
|
log(" netlists (experimental).\n");
|
|
log("\n");
|
|
log("When no target cell library is specified the Yosys standard cell library is\n");
|
|
log("loaded into ABC before the ABC script is executed.\n");
|
|
log("\n");
|
|
log("Note that this is a logic optimization pass within Yosys that is calling ABC\n");
|
|
log("internally. This is not going to \"run ABC on your design\". It will instead run\n");
|
|
log("ABC on logic snippets extracted from your design. You will not get any useful\n");
|
|
log("output when passing an ABC script that writes a file. Instead write your full\n");
|
|
log("design as BLIF file with write_blif and then load that into ABC externally if\n");
|
|
log("you want to use ABC to convert your design into another format.\n");
|
|
log("\n");
|
|
log("[1] http://www.eecs.berkeley.edu/~alanmi/abc/\n");
|
|
log("\n");
|
|
}
|
|
void execute(std::vector<std::string> args, RTLIL::Design *design) override
|
|
{
|
|
log_header(design, "Executing ABC pass (technology mapping using ABC).\n");
|
|
log_push();
|
|
|
|
assign_map.clear();
|
|
signal_list.clear();
|
|
signal_map.clear();
|
|
initvals.clear();
|
|
pi_map.clear();
|
|
po_map.clear();
|
|
|
|
std::string exe_file = yosys_abc_executable;
|
|
std::string script_file, default_liberty_file, constr_file, clk_str;
|
|
std::vector<std::string> liberty_files, genlib_files;
|
|
std::string delay_target, sop_inputs, sop_products, lutin_shared = "-S 1";
|
|
bool fast_mode = false, dff_mode = false, keepff = false, cleanup = true;
|
|
bool show_tempdir = false, sop_mode = false;
|
|
bool abc_dress = false;
|
|
vector<int> lut_costs;
|
|
markgroups = false;
|
|
|
|
map_mux4 = false;
|
|
map_mux8 = false;
|
|
map_mux16 = false;
|
|
enabled_gates.clear();
|
|
cmos_cost = false;
|
|
|
|
// get arguments from scratchpad first, then override by command arguments
|
|
std::string lut_arg, luts_arg, g_arg;
|
|
exe_file = design->scratchpad_get_string("abc.exe", exe_file /* inherit default value if not set */);
|
|
script_file = design->scratchpad_get_string("abc.script", script_file);
|
|
default_liberty_file = design->scratchpad_get_string("abc.liberty", default_liberty_file);
|
|
constr_file = design->scratchpad_get_string("abc.constr", constr_file);
|
|
if (design->scratchpad.count("abc.D")) {
|
|
delay_target = "-D " + design->scratchpad_get_string("abc.D");
|
|
}
|
|
if (design->scratchpad.count("abc.I")) {
|
|
sop_inputs = "-I " + design->scratchpad_get_string("abc.I");
|
|
}
|
|
if (design->scratchpad.count("abc.P")) {
|
|
sop_products = "-P " + design->scratchpad_get_string("abc.P");
|
|
}
|
|
if (design->scratchpad.count("abc.S")) {
|
|
lutin_shared = "-S " + design->scratchpad_get_string("abc.S");
|
|
}
|
|
lut_arg = design->scratchpad_get_string("abc.lut", lut_arg);
|
|
luts_arg = design->scratchpad_get_string("abc.luts", luts_arg);
|
|
sop_mode = design->scratchpad_get_bool("abc.sop", sop_mode);
|
|
map_mux4 = design->scratchpad_get_bool("abc.mux4", map_mux4);
|
|
map_mux8 = design->scratchpad_get_bool("abc.mux8", map_mux8);
|
|
map_mux16 = design->scratchpad_get_bool("abc.mux16", map_mux16);
|
|
abc_dress = design->scratchpad_get_bool("abc.dress", abc_dress);
|
|
g_arg = design->scratchpad_get_string("abc.g", g_arg);
|
|
|
|
fast_mode = design->scratchpad_get_bool("abc.fast", fast_mode);
|
|
dff_mode = design->scratchpad_get_bool("abc.dff", dff_mode);
|
|
if (design->scratchpad.count("abc.clk")) {
|
|
clk_str = design->scratchpad_get_string("abc.clk");
|
|
dff_mode = true;
|
|
}
|
|
keepff = design->scratchpad_get_bool("abc.keepff", keepff);
|
|
cleanup = !design->scratchpad_get_bool("abc.nocleanup", !cleanup);
|
|
keepff = design->scratchpad_get_bool("abc.keepff", keepff);
|
|
show_tempdir = design->scratchpad_get_bool("abc.showtmp", show_tempdir);
|
|
markgroups = design->scratchpad_get_bool("abc.markgroups", markgroups);
|
|
|
|
if (design->scratchpad_get_bool("abc.debug")) {
|
|
cleanup = false;
|
|
show_tempdir = true;
|
|
}
|
|
|
|
size_t argidx, g_argidx;
|
|
bool g_arg_from_cmd = false;
|
|
#if defined(__wasm)
|
|
const char *pwd = ".";
|
|
#else
|
|
char pwd [PATH_MAX];
|
|
if (!getcwd(pwd, sizeof(pwd))) {
|
|
log_cmd_error("getcwd failed: %s\n", strerror(errno));
|
|
log_abort();
|
|
}
|
|
#endif
|
|
for (argidx = 1; argidx < args.size(); argidx++) {
|
|
std::string arg = args[argidx];
|
|
if (arg == "-exe" && argidx+1 < args.size()) {
|
|
exe_file = args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-script" && argidx+1 < args.size()) {
|
|
script_file = args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-liberty" && argidx+1 < args.size()) {
|
|
liberty_files.push_back(args[++argidx]);
|
|
continue;
|
|
}
|
|
if (arg == "-genlib" && argidx+1 < args.size()) {
|
|
genlib_files.push_back(args[++argidx]);
|
|
continue;
|
|
}
|
|
if (arg == "-constr" && argidx+1 < args.size()) {
|
|
constr_file = args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-D" && argidx+1 < args.size()) {
|
|
delay_target = "-D " + args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-I" && argidx+1 < args.size()) {
|
|
sop_inputs = "-I " + args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-P" && argidx+1 < args.size()) {
|
|
sop_products = "-P " + args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-S" && argidx+1 < args.size()) {
|
|
lutin_shared = "-S " + args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-lut" && argidx+1 < args.size()) {
|
|
lut_arg = args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-luts" && argidx+1 < args.size()) {
|
|
luts_arg = args[++argidx];
|
|
continue;
|
|
}
|
|
if (arg == "-sop") {
|
|
sop_mode = true;
|
|
continue;
|
|
}
|
|
if (arg == "-mux4") {
|
|
map_mux4 = true;
|
|
continue;
|
|
}
|
|
if (arg == "-mux8") {
|
|
map_mux8 = true;
|
|
continue;
|
|
}
|
|
if (arg == "-mux16") {
|
|
map_mux16 = true;
|
|
continue;
|
|
}
|
|
if (arg == "-dress") {
|
|
abc_dress = true;
|
|
continue;
|
|
}
|
|
if (arg == "-g" && argidx+1 < args.size()) {
|
|
if (g_arg_from_cmd)
|
|
log_cmd_error("Can only use -g once. Please combine.");
|
|
g_arg = args[++argidx];
|
|
g_argidx = argidx;
|
|
g_arg_from_cmd = true;
|
|
continue;
|
|
}
|
|
if (arg == "-fast") {
|
|
fast_mode = true;
|
|
continue;
|
|
}
|
|
if (arg == "-dff") {
|
|
dff_mode = true;
|
|
continue;
|
|
}
|
|
if (arg == "-clk" && argidx+1 < args.size()) {
|
|
clk_str = args[++argidx];
|
|
dff_mode = true;
|
|
continue;
|
|
}
|
|
if (arg == "-keepff") {
|
|
keepff = true;
|
|
continue;
|
|
}
|
|
if (arg == "-nocleanup") {
|
|
cleanup = false;
|
|
continue;
|
|
}
|
|
if (arg == "-showtmp") {
|
|
show_tempdir = true;
|
|
continue;
|
|
}
|
|
if (arg == "-markgroups") {
|
|
markgroups = true;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
extra_args(args, argidx, design);
|
|
|
|
if (genlib_files.empty() && liberty_files.empty() && !default_liberty_file.empty())
|
|
liberty_files.push_back(default_liberty_file);
|
|
|
|
rewrite_filename(script_file);
|
|
if (!script_file.empty() && !is_absolute_path(script_file) && script_file[0] != '+')
|
|
script_file = std::string(pwd) + "/" + script_file;
|
|
for (int i = 0; i < GetSize(liberty_files); i++) {
|
|
rewrite_filename(liberty_files[i]);
|
|
if (!liberty_files[i].empty() && !is_absolute_path(liberty_files[i]))
|
|
liberty_files[i] = std::string(pwd) + "/" + liberty_files[i];
|
|
}
|
|
for (int i = 0; i < GetSize(genlib_files); i++) {
|
|
rewrite_filename(genlib_files[i]);
|
|
if (!genlib_files[i].empty() && !is_absolute_path(genlib_files[i]))
|
|
genlib_files[i] = std::string(pwd) + "/" + genlib_files[i];
|
|
}
|
|
rewrite_filename(constr_file);
|
|
if (!constr_file.empty() && !is_absolute_path(constr_file))
|
|
constr_file = std::string(pwd) + "/" + constr_file;
|
|
|
|
// handle -lut argument
|
|
if (!lut_arg.empty()) {
|
|
size_t pos = lut_arg.find_first_of(':');
|
|
int lut_mode = 0, lut_mode2 = 0;
|
|
if (pos != string::npos) {
|
|
lut_mode = atoi(lut_arg.substr(0, pos).c_str());
|
|
lut_mode2 = atoi(lut_arg.substr(pos+1).c_str());
|
|
} else {
|
|
lut_mode = atoi(lut_arg.c_str());
|
|
lut_mode2 = lut_mode;
|
|
}
|
|
lut_costs.clear();
|
|
for (int i = 0; i < lut_mode; i++)
|
|
lut_costs.push_back(1);
|
|
for (int i = lut_mode; i < lut_mode2; i++)
|
|
lut_costs.push_back(2 << (i - lut_mode));
|
|
}
|
|
//handle -luts argument
|
|
if (!luts_arg.empty()){
|
|
lut_costs.clear();
|
|
for (auto &tok : split_tokens(luts_arg, ",")) {
|
|
auto parts = split_tokens(tok, ":");
|
|
if (GetSize(parts) == 0 && !lut_costs.empty())
|
|
lut_costs.push_back(lut_costs.back());
|
|
else if (GetSize(parts) == 1)
|
|
lut_costs.push_back(atoi(parts.at(0).c_str()));
|
|
else if (GetSize(parts) == 2)
|
|
while (GetSize(lut_costs) < std::atoi(parts.at(0).c_str()))
|
|
lut_costs.push_back(atoi(parts.at(1).c_str()));
|
|
else
|
|
log_cmd_error("Invalid -luts syntax.\n");
|
|
}
|
|
}
|
|
|
|
// handle -g argument
|
|
if (!g_arg.empty()){
|
|
for (auto g : split_tokens(g_arg, ",")) {
|
|
vector<string> gate_list;
|
|
bool remove_gates = false;
|
|
if (GetSize(g) > 0 && g[0] == '-') {
|
|
remove_gates = true;
|
|
g = g.substr(1);
|
|
}
|
|
if (g == "AND") goto ok_gate;
|
|
if (g == "NAND") goto ok_gate;
|
|
if (g == "OR") goto ok_gate;
|
|
if (g == "NOR") goto ok_gate;
|
|
if (g == "XOR") goto ok_gate;
|
|
if (g == "XNOR") goto ok_gate;
|
|
if (g == "ANDNOT") goto ok_gate;
|
|
if (g == "ORNOT") goto ok_gate;
|
|
if (g == "MUX") goto ok_gate;
|
|
if (g == "NMUX") goto ok_gate;
|
|
if (g == "AOI3") goto ok_gate;
|
|
if (g == "OAI3") goto ok_gate;
|
|
if (g == "AOI4") goto ok_gate;
|
|
if (g == "OAI4") goto ok_gate;
|
|
if (g == "simple") {
|
|
gate_list.push_back("AND");
|
|
gate_list.push_back("OR");
|
|
gate_list.push_back("XOR");
|
|
gate_list.push_back("MUX");
|
|
goto ok_alias;
|
|
}
|
|
if (g == "cmos2") {
|
|
if (!remove_gates)
|
|
cmos_cost = true;
|
|
gate_list.push_back("NAND");
|
|
gate_list.push_back("NOR");
|
|
goto ok_alias;
|
|
}
|
|
if (g == "cmos3") {
|
|
if (!remove_gates)
|
|
cmos_cost = true;
|
|
gate_list.push_back("NAND");
|
|
gate_list.push_back("NOR");
|
|
gate_list.push_back("AOI3");
|
|
gate_list.push_back("OAI3");
|
|
goto ok_alias;
|
|
}
|
|
if (g == "cmos4") {
|
|
if (!remove_gates)
|
|
cmos_cost = true;
|
|
gate_list.push_back("NAND");
|
|
gate_list.push_back("NOR");
|
|
gate_list.push_back("AOI3");
|
|
gate_list.push_back("OAI3");
|
|
gate_list.push_back("AOI4");
|
|
gate_list.push_back("OAI4");
|
|
goto ok_alias;
|
|
}
|
|
if (g == "cmos") {
|
|
if (!remove_gates)
|
|
cmos_cost = true;
|
|
gate_list.push_back("NAND");
|
|
gate_list.push_back("NOR");
|
|
gate_list.push_back("AOI3");
|
|
gate_list.push_back("OAI3");
|
|
gate_list.push_back("AOI4");
|
|
gate_list.push_back("OAI4");
|
|
gate_list.push_back("NMUX");
|
|
gate_list.push_back("MUX");
|
|
gate_list.push_back("XOR");
|
|
gate_list.push_back("XNOR");
|
|
goto ok_alias;
|
|
}
|
|
if (g == "gates") {
|
|
gate_list.push_back("AND");
|
|
gate_list.push_back("NAND");
|
|
gate_list.push_back("OR");
|
|
gate_list.push_back("NOR");
|
|
gate_list.push_back("XOR");
|
|
gate_list.push_back("XNOR");
|
|
gate_list.push_back("ANDNOT");
|
|
gate_list.push_back("ORNOT");
|
|
goto ok_alias;
|
|
}
|
|
if (g == "aig") {
|
|
gate_list.push_back("AND");
|
|
gate_list.push_back("NAND");
|
|
gate_list.push_back("OR");
|
|
gate_list.push_back("NOR");
|
|
gate_list.push_back("ANDNOT");
|
|
gate_list.push_back("ORNOT");
|
|
goto ok_alias;
|
|
}
|
|
if (g == "all") {
|
|
gate_list.push_back("AND");
|
|
gate_list.push_back("NAND");
|
|
gate_list.push_back("OR");
|
|
gate_list.push_back("NOR");
|
|
gate_list.push_back("XOR");
|
|
gate_list.push_back("XNOR");
|
|
gate_list.push_back("ANDNOT");
|
|
gate_list.push_back("ORNOT");
|
|
gate_list.push_back("AOI3");
|
|
gate_list.push_back("OAI3");
|
|
gate_list.push_back("AOI4");
|
|
gate_list.push_back("OAI4");
|
|
gate_list.push_back("MUX");
|
|
gate_list.push_back("NMUX");
|
|
goto ok_alias;
|
|
}
|
|
if (g_arg_from_cmd)
|
|
cmd_error(args, g_argidx, stringf("Unsupported gate type: %s", g.c_str()));
|
|
else
|
|
log_cmd_error("Unsupported gate type: %s", g.c_str());
|
|
ok_gate:
|
|
gate_list.push_back(g);
|
|
ok_alias:
|
|
for (auto gate : gate_list) {
|
|
if (remove_gates)
|
|
enabled_gates.erase(gate);
|
|
else
|
|
enabled_gates.insert(gate);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!lut_costs.empty() && !(liberty_files.empty() && genlib_files.empty()))
|
|
log_cmd_error("Got -lut and -liberty/-genlib! These two options are exclusive.\n");
|
|
if (!constr_file.empty() && (liberty_files.empty() && genlib_files.empty()))
|
|
log_cmd_error("Got -constr but no -liberty/-genlib!\n");
|
|
|
|
if (enabled_gates.empty()) {
|
|
enabled_gates.insert("AND");
|
|
enabled_gates.insert("NAND");
|
|
enabled_gates.insert("OR");
|
|
enabled_gates.insert("NOR");
|
|
enabled_gates.insert("XOR");
|
|
enabled_gates.insert("XNOR");
|
|
enabled_gates.insert("ANDNOT");
|
|
enabled_gates.insert("ORNOT");
|
|
// enabled_gates.insert("AOI3");
|
|
// enabled_gates.insert("OAI3");
|
|
// enabled_gates.insert("AOI4");
|
|
// enabled_gates.insert("OAI4");
|
|
enabled_gates.insert("MUX");
|
|
// enabled_gates.insert("NMUX");
|
|
}
|
|
|
|
for (auto mod : design->selected_modules())
|
|
{
|
|
if (mod->processes.size() > 0) {
|
|
log("Skipping module %s as it contains processes.\n", log_id(mod));
|
|
continue;
|
|
}
|
|
|
|
assign_map.set(mod);
|
|
initvals.set(&assign_map, mod);
|
|
|
|
if (!dff_mode || !clk_str.empty()) {
|
|
abc_module(design, mod, script_file, exe_file, liberty_files, genlib_files, constr_file, cleanup, lut_costs, dff_mode, clk_str, keepff,
|
|
delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, mod->selected_cells(), show_tempdir, sop_mode, abc_dress);
|
|
continue;
|
|
}
|
|
|
|
CellTypes ct(design);
|
|
|
|
std::vector<RTLIL::Cell*> all_cells = mod->selected_cells();
|
|
std::set<RTLIL::Cell*> unassigned_cells(all_cells.begin(), all_cells.end());
|
|
|
|
std::set<RTLIL::Cell*> expand_queue, next_expand_queue;
|
|
std::set<RTLIL::Cell*> expand_queue_up, next_expand_queue_up;
|
|
std::set<RTLIL::Cell*> expand_queue_down, next_expand_queue_down;
|
|
|
|
typedef tuple<bool, RTLIL::SigSpec, bool, RTLIL::SigSpec> clkdomain_t;
|
|
std::map<clkdomain_t, std::vector<RTLIL::Cell*>> assigned_cells;
|
|
std::map<RTLIL::Cell*, clkdomain_t> assigned_cells_reverse;
|
|
|
|
std::map<RTLIL::Cell*, std::set<RTLIL::SigBit>> cell_to_bit, cell_to_bit_up, cell_to_bit_down;
|
|
std::map<RTLIL::SigBit, std::set<RTLIL::Cell*>> bit_to_cell, bit_to_cell_up, bit_to_cell_down;
|
|
|
|
for (auto cell : all_cells)
|
|
{
|
|
clkdomain_t key;
|
|
|
|
for (auto &conn : cell->connections())
|
|
for (auto bit : conn.second) {
|
|
bit = assign_map(bit);
|
|
if (bit.wire != nullptr) {
|
|
cell_to_bit[cell].insert(bit);
|
|
bit_to_cell[bit].insert(cell);
|
|
if (ct.cell_input(cell->type, conn.first)) {
|
|
cell_to_bit_up[cell].insert(bit);
|
|
bit_to_cell_down[bit].insert(cell);
|
|
}
|
|
if (ct.cell_output(cell->type, conn.first)) {
|
|
cell_to_bit_down[cell].insert(bit);
|
|
bit_to_cell_up[bit].insert(cell);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (cell->type.in(ID($_DFF_N_), ID($_DFF_P_)))
|
|
{
|
|
key = clkdomain_t(cell->type == ID($_DFF_P_), assign_map(cell->getPort(ID::C)), true, RTLIL::SigSpec());
|
|
}
|
|
else
|
|
if (cell->type.in(ID($_DFFE_NN_), ID($_DFFE_NP_), ID($_DFFE_PN_), ID($_DFFE_PP_)))
|
|
{
|
|
bool this_clk_pol = cell->type.in(ID($_DFFE_PN_), ID($_DFFE_PP_));
|
|
bool this_en_pol = cell->type.in(ID($_DFFE_NP_), ID($_DFFE_PP_));
|
|
key = clkdomain_t(this_clk_pol, assign_map(cell->getPort(ID::C)), this_en_pol, assign_map(cell->getPort(ID::E)));
|
|
}
|
|
else
|
|
continue;
|
|
|
|
unassigned_cells.erase(cell);
|
|
expand_queue.insert(cell);
|
|
expand_queue_up.insert(cell);
|
|
expand_queue_down.insert(cell);
|
|
|
|
assigned_cells[key].push_back(cell);
|
|
assigned_cells_reverse[cell] = key;
|
|
}
|
|
|
|
while (!expand_queue_up.empty() || !expand_queue_down.empty())
|
|
{
|
|
if (!expand_queue_up.empty())
|
|
{
|
|
RTLIL::Cell *cell = *expand_queue_up.begin();
|
|
clkdomain_t key = assigned_cells_reverse.at(cell);
|
|
expand_queue_up.erase(cell);
|
|
|
|
for (auto bit : cell_to_bit_up[cell])
|
|
for (auto c : bit_to_cell_up[bit])
|
|
if (unassigned_cells.count(c)) {
|
|
unassigned_cells.erase(c);
|
|
next_expand_queue_up.insert(c);
|
|
assigned_cells[key].push_back(c);
|
|
assigned_cells_reverse[c] = key;
|
|
expand_queue.insert(c);
|
|
}
|
|
}
|
|
|
|
if (!expand_queue_down.empty())
|
|
{
|
|
RTLIL::Cell *cell = *expand_queue_down.begin();
|
|
clkdomain_t key = assigned_cells_reverse.at(cell);
|
|
expand_queue_down.erase(cell);
|
|
|
|
for (auto bit : cell_to_bit_down[cell])
|
|
for (auto c : bit_to_cell_down[bit])
|
|
if (unassigned_cells.count(c)) {
|
|
unassigned_cells.erase(c);
|
|
next_expand_queue_up.insert(c);
|
|
assigned_cells[key].push_back(c);
|
|
assigned_cells_reverse[c] = key;
|
|
expand_queue.insert(c);
|
|
}
|
|
}
|
|
|
|
if (expand_queue_up.empty() && expand_queue_down.empty()) {
|
|
expand_queue_up.swap(next_expand_queue_up);
|
|
expand_queue_down.swap(next_expand_queue_down);
|
|
}
|
|
}
|
|
|
|
while (!expand_queue.empty())
|
|
{
|
|
RTLIL::Cell *cell = *expand_queue.begin();
|
|
clkdomain_t key = assigned_cells_reverse.at(cell);
|
|
expand_queue.erase(cell);
|
|
|
|
for (auto bit : cell_to_bit.at(cell)) {
|
|
for (auto c : bit_to_cell[bit])
|
|
if (unassigned_cells.count(c)) {
|
|
unassigned_cells.erase(c);
|
|
next_expand_queue.insert(c);
|
|
assigned_cells[key].push_back(c);
|
|
assigned_cells_reverse[c] = key;
|
|
}
|
|
bit_to_cell[bit].clear();
|
|
}
|
|
|
|
if (expand_queue.empty())
|
|
expand_queue.swap(next_expand_queue);
|
|
}
|
|
|
|
clkdomain_t key(true, RTLIL::SigSpec(), true, RTLIL::SigSpec());
|
|
for (auto cell : unassigned_cells) {
|
|
assigned_cells[key].push_back(cell);
|
|
assigned_cells_reverse[cell] = key;
|
|
}
|
|
|
|
log_header(design, "Summary of detected clock domains:\n");
|
|
for (auto &it : assigned_cells)
|
|
log(" %d cells in clk=%s%s, en=%s%s\n", GetSize(it.second),
|
|
std::get<0>(it.first) ? "" : "!", log_signal(std::get<1>(it.first)),
|
|
std::get<2>(it.first) ? "" : "!", log_signal(std::get<3>(it.first)));
|
|
|
|
for (auto &it : assigned_cells) {
|
|
clk_polarity = std::get<0>(it.first);
|
|
clk_sig = assign_map(std::get<1>(it.first));
|
|
en_polarity = std::get<2>(it.first);
|
|
en_sig = assign_map(std::get<3>(it.first));
|
|
abc_module(design, mod, script_file, exe_file, liberty_files, genlib_files, constr_file, cleanup, lut_costs, !clk_sig.empty(), "$",
|
|
keepff, delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, it.second, show_tempdir, sop_mode, abc_dress);
|
|
assign_map.set(mod);
|
|
}
|
|
}
|
|
|
|
assign_map.clear();
|
|
signal_list.clear();
|
|
signal_map.clear();
|
|
initvals.clear();
|
|
pi_map.clear();
|
|
po_map.clear();
|
|
|
|
log_pop();
|
|
}
|
|
} AbcPass;
|
|
|
|
PRIVATE_NAMESPACE_END
|