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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2025 Jannis Harder <jix@yosyshq.com> <me@jix.one>
*
* 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 "passes/techmap/libparse.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
struct LibcachePass : public Pass {
LibcachePass() : Pass("libcache", "control caching of technology library data parsed from liberty files") { }
void help() override
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" libcache {-enable|-disable|-purge} { -all | [path]... }\n");
log("\n");
log("Controls the default and per path caching of liberty file data.\n");
log("\n");
log(" -enable Enable caching.\n");
log(" -disable Disable caching.\n");
log(" -purge Reset cache setting and forget cached data.\n");
log("\n");
log("This mode takes a list of paths as argument. If no paths are provided, this\n");
log("command does nothing. The -all option can be used to change the default cache\n");
log("setting for -enable/-disable or to reset and forget about all paths.\n");
log("\n");
log("By default caching is disabled.\n");
log("\n");
log(" libcache -list\n");
log("\n");
log("Displays the current cache settings and cached paths.\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *) override
{
bool enable = false;
bool disable = false;
bool purge = false;
bool all = false;
bool list = false;
std::vector<std::string> paths;
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) {
if (args[argidx] == "-enable") {
enable = true;
continue;
}
if (args[argidx] == "-disable") {
enable = true;
continue;
}
if (args[argidx] == "-purge") {
purge = true;
continue;
}
if (args[argidx] == "-all") {
all = true;
continue;
}
if (args[argidx] == "-list") {
list = true;
continue;
}
std::string fname = args[argidx];
rewrite_filename(fname);
paths.push_back(fname);
break;
}
int modes = enable + disable + purge + list;
if (modes == 0)
log_cmd_error("At least one of -enable, -disable, -purge or -list is required.\n");
if (modes > 1)
log_cmd_error("Only one of -enable, -disable, -purge or -list may be present.\n");
if (all && !paths.empty())
log_cmd_error("The -all option cannot be combined with a list of paths.\n");
if (list && (all || !paths.empty()))
log_cmd_error("The -list mode takes no further options.\n");
if (!list && !all && paths.empty())
log("No paths specified, use -all to %s\n", purge ? "purge all paths" : "change the default setting");
if (list) {
log("Caching is %s by default.\n", LibertyAstCache::instance.cache_by_default ? "enabled" : "disabled");
for (auto const &entry : LibertyAstCache::instance.cache_path)
log("Caching is %s for `%s'.\n", entry.second ? "enabled" : "disabled", entry.first.c_str());
for (auto const &entry : LibertyAstCache::instance.cached)
log("Data for `%s' is currently cached.\n", entry.first.c_str());
} else if (enable || disable) {
if (all) {
LibertyAstCache::instance.cache_by_default = enable;
} else {
for (auto const &path : paths) {
LibertyAstCache::instance.cache_path[path] = enable;
}
}
} else if (purge) {
if (all) {
LibertyAstCache::instance.cached.clear();
LibertyAstCache::instance.cache_path.clear();
} else {
for (auto const &path : paths) {
LibertyAstCache::instance.cached.erase(path);
LibertyAstCache::instance.cache_path.erase(path);
}
}
} else {
log_assert(false);
}
}
} LibcachePass;
PRIVATE_NAMESPACE_END
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