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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "kernel/register.h"
#include "kernel/celltypes.h"
#include "kernel/rtlil.h"
#include "kernel/log.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
bool check_label(bool &active, std::string run_from, std::string run_to, std::string label)
{
if (!run_from.empty() && run_from == run_to) {
active = (label == run_from);
} else {
if (label == run_from)
active = true;
if (label == run_to)
active = false;
}
return active;
}
struct SynthPass : public Pass {
SynthPass() : Pass("synth", "generic synthesis script") { }
virtual void help()
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" synth [options]\n");
log("\n");
log("This command runs the default synthesis script. This command does not operate\n");
log("on partly selected designs.\n");
log("\n");
log(" -top <module>\n");
log(" use the specified module as top module (default='top')\n");
log("\n");
log(" -encfile <file>\n");
log(" passed to 'fsm_recode' via 'fsm'\n");
log("\n");
log(" -nofsm\n");
log(" do not run FSM optimization\n");
log("\n");
log(" -noabc\n");
log(" do not run abc (as if yosys was compiled without ABC support)\n");
log("\n");
log(" -noalumacc\n");
log(" do not run 'alumacc' pass. i.e. keep arithmetic operators in\n");
log(" their direct form ($add, $sub, etc.).\n");
log("\n");
log(" -nordff\n");
log(" passed to 'memory'. prohibits merging of FFs into memory read ports\n");
log("\n");
log(" -run <from_label>[:<to_label>]\n");
log(" only run the commands between the labels (see below). an empty\n");
log(" from label is synonymous to 'begin', and empty to label is\n");
log(" synonymous to the end of the command list.\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
log("\n");
log(" begin:\n");
log(" hierarchy -check [-top <top>]\n");
log("\n");
log(" coarse:\n");
log(" proc\n");
log(" opt_const\n");
log(" opt_clean\n");
log(" check\n");
log(" opt\n");
log(" wreduce\n");
log(" alumacc\n");
log(" share\n");
log(" opt\n");
log(" fsm\n");
log(" opt -fast\n");
log(" memory -nomap\n");
log(" opt_clean\n");
log("\n");
log(" fine:\n");
log(" opt -fast -full\n");
log(" memory_map\n");
log(" opt -full\n");
log(" techmap\n");
log(" opt -fast\n");
#ifdef YOSYS_ENABLE_ABC
log(" abc -fast\n");
log(" opt -fast\n");
#endif
log("\n");
log(" check:\n");
log(" hierarchy -check\n");
log(" stat\n");
log(" check\n");
log("\n");
}
virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{
std::string top_module, fsm_opts, memory_opts;
std::string run_from, run_to;
bool noalumacc = false;
bool nofsm = false;
bool noabc = false;
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
{
if (args[argidx] == "-top" && argidx+1 < args.size()) {
top_module = args[++argidx];
continue;
}
if (args[argidx] == "-encfile" && argidx+1 < args.size()) {
fsm_opts = " -encfile " + args[++argidx];
continue;
}
if (args[argidx] == "-run" && argidx+1 < args.size()) {
size_t pos = args[argidx+1].find(':');
if (pos == std::string::npos) {
run_from = args[++argidx];
run_to = args[argidx];
} else {
run_from = args[++argidx].substr(0, pos);
run_to = args[argidx].substr(pos+1);
}
continue;
}
if (args[argidx] == "-nofsm") {
nofsm = true;
continue;
}
if (args[argidx] == "-noabc") {
noabc = true;
continue;
}
if (args[argidx] == "-noalumacc") {
noalumacc = true;
continue;
}
if (args[argidx] == "-nordff") {
memory_opts += " -nordff";
continue;
}
break;
}
extra_args(args, argidx, design);
if (!design->full_selection())
log_cmd_error("This comannd only operates on fully selected designs!\n");
bool active = run_from.empty();
log_header("Executing SYNTH pass.\n");
log_push();
if (check_label(active, run_from, run_to, "begin"))
{
if (top_module.empty())
Pass::call(design, stringf("hierarchy -check"));
else
Pass::call(design, stringf("hierarchy -check -top %s", top_module.c_str()));
}
if (check_label(active, run_from, run_to, "coarse"))
{
Pass::call(design, "proc");
Pass::call(design, "opt_const");
Pass::call(design, "opt_clean");
Pass::call(design, "check");
Pass::call(design, "opt");
Pass::call(design, "wreduce");
if (!noalumacc)
Pass::call(design, "alumacc");
Pass::call(design, "share");
Pass::call(design, "opt");
if (!nofsm)
Pass::call(design, "fsm" + fsm_opts);
Pass::call(design, "opt -fast");
Pass::call(design, "memory -nomap" + memory_opts);
Pass::call(design, "opt_clean");
}
if (check_label(active, run_from, run_to, "fine"))
{
Pass::call(design, "opt -fast -full");
Pass::call(design, "memory_map");
Pass::call(design, "opt -full");
Pass::call(design, "techmap");
Pass::call(design, "opt -fast");
if (!noabc) {
#ifdef YOSYS_ENABLE_ABC
Pass::call(design, "abc -fast");
Pass::call(design, "opt -fast");
#endif
}
}
if (check_label(active, run_from, run_to, "check"))
{
Pass::call(design, "hierarchy -check");
Pass::call(design, "stat");
Pass::call(design, "check");
}
log_pop();
}
} SynthPass;
PRIVATE_NAMESPACE_END
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