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Update Yosys

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This commit is contained in:
Akash Levy 2024-07-30 16:55:18 -07:00
commit c0af4604bc
47 changed files with 5093 additions and 97 deletions
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1
passes/hierarchy/Makefile.inc
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@ -2,4 +2,5 @@
OBJS += passes/hierarchy/hierarchy.o
OBJS += passes/hierarchy/uniquify.o
OBJS += passes/hierarchy/submod.o
OBJS += passes/hierarchy/keep_hierarchy.o

74
passes/hierarchy/keep_hierarchy.cc Normal file
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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Claire Xenia Wolf <claire@yosyshq.com>
*
* 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/yosys.h"
#include "kernel/cost.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
struct KeepHierarchyPass : public Pass {
KeepHierarchyPass() : Pass("keep_hierarchy", "add the keep_hierarchy attribute") {}
void help() override
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" keep_hierarchy [options]\n");
log("\n");
log("Add the keep_hierarchy attribute.\n");
log("\n");
log(" -min_cost <min_cost>\n");
log(" only add the attribute to modules estimated to have more\n");
log(" than <min_cost> gates after simple techmapping. Intended\n");
log(" for tuning trade-offs between quality and yosys runtime.\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) override
{
unsigned int min_cost = 0;
log_header(design, "Executing KEEP_HIERARCHY pass.\n");
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) {
if (args[argidx] == "-min_cost" && argidx+1 < args.size()) {
min_cost = std::stoi(args[++argidx].c_str());
continue;
}
break;
}
extra_args(args, argidx, design);
CellCosts costs(design);
for (auto module : design->selected_modules()) {
if (min_cost) {
unsigned int cost = costs.get(module);
if (cost > min_cost) {
log("Marking %s (module too big: %d > %d).\n", log_id(module), cost, min_cost);
module->set_bool_attribute(ID::keep_hierarchy);
}
} else {
log("Marking %s.\n", log_id(module));
module->set_bool_attribute(ID::keep_hierarchy);
}
}
}
} KeepHierarchyPass;
PRIVATE_NAMESPACE_END