Files
yosys/passes/techmap/scl_cache.cc
T
2026-08-17 10:49:45 +02:00

83 lines
2.5 KiB
C++

/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2026 Simon Tupy <[email protected]>
*
* 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"
YOSYS_NAMESPACE_BEGIN
// Read by convert_liberty_files_to_merged_scl() in liberty_cache.h
bool scl_cache_enabled = true;
YOSYS_NAMESPACE_END
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
struct SclCachePass : public Pass {
SclCachePass() : Pass("scl_cache", "control caching of merged SCL files generated for ABC") { }
void help() override
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" scl_cache {-enable|-disable|-list}\n");
log("\n");
log("Controls the on-disk cache of merged SCL files that the abc and abc9 passes\n");
log("generate from liberty files.\n");
log("\n");
log(" -enable Enable caching (default).\n");
log(" -disable Disable caching, ABC reads the liberty files directly.\n");
log(" -list Display the current cache setting.\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *) override
{
bool enable = false;
bool disable = false;
bool list = false;
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) {
if (args[argidx] == "-enable") {
enable = true;
continue;
}
if (args[argidx] == "-disable") {
disable = true;
continue;
}
if (args[argidx] == "-list") {
list = true;
continue;
}
break;
}
if (argidx != args.size())
log_cmd_error("Unexpected argument `%s'.\n", args[argidx].c_str());
int modes = enable + disable + list;
if (modes != 1)
log_cmd_error("Exactly one of -enable, -disable, or -list is required.\n");
if (list)
log("SCL caching is %s.\n", scl_cache_enabled ? "enabled" : "disabled");
else
scl_cache_enabled = enable;
}
} SclCachePass;
PRIVATE_NAMESPACE_END