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opt_clean: refactor

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This commit is contained in:
Emil J. Tywoniak 2026-02-24 12:54:03 +01:00
parent 930bd3acc5
commit 5d3b3ff18d
4 changed files with 62 additions and 38 deletions
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44
passes/opt/opt_clean/shared.h
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@ -22,6 +22,7 @@
#include "kernel/threading.h"
#include "kernel/celltypes.h"
#include "kernel/yosys_common.h"
#include "passes/opt/opt_clean/keep_cache.h"
#ifndef OPT_CLEAN_SHARED_H
#define OPT_CLEAN_SHARED_H
@ -47,27 +48,60 @@ struct RmStats {
}
};
struct Flags {
bool purge = false;
bool verbose = false;
};
struct CleanRunContext {
CellTypes ct_reg;
CellTypes ct_all;
RmStats stats;
CleanRunContext(RTLIL::Design* design) {
ParallelDispatchThreadPool thread_pool;
std::vector<RTLIL::Module*> selected_modules;
keep_cache_t keep_cache;
Flags flags;
private:
// Helper to compute thread pool size
static int compute_thread_pool_size(RTLIL::Design* design) {
int thread_pool_size = 0;
for (auto module : design->selected_unboxed_whole_modules())
if (!module->has_processes())
thread_pool_size = std::max(thread_pool_size,
ThreadPool::work_pool_size(0, module->cells_size(), 1000));
return thread_pool_size;
}
static std::vector<RTLIL::Module*> get_selected_modules(RTLIL::Design* design) {
std::vector<RTLIL::Module*> modules;
for (auto module : design->selected_unboxed_whole_modules())
if (!module->has_processes())
modules.push_back(module);
return modules;
}
public:
CleanRunContext(RTLIL::Design* design, Flags f)
: thread_pool(compute_thread_pool_size(design)),
selected_modules(get_selected_modules(design)),
keep_cache(f.purge, thread_pool, selected_modules),
flags(f)
{
ct_reg.setup_internals_mem();
ct_reg.setup_internals_anyinit();
ct_reg.setup_stdcells_mem();
ct_all.setup(design);
}
~CleanRunContext() {
ct_reg.clear();
ct_all.clear();
}
};
struct keep_cache_t;
void remove_temporary_cells(RTLIL::Module *module, ParallelDispatchThreadPool::Subpool &subpool, bool verbose);
void rmunused_module_cells(Module *module, ParallelDispatchThreadPool::Subpool &subpool, bool verbose, CleanRunContext &clean_ctx, keep_cache_t &keep_cache);
bool rmunused_module_signals(RTLIL::Module *module, ParallelDispatchThreadPool::Subpool &subpool, bool purge_mode, bool verbose, CleanRunContext &clean_ctx);
void rmunused_module_cells(Module *module, ParallelDispatchThreadPool::Subpool &subpool, CleanRunContext &clean_ctx);
bool rmunused_module_signals(RTLIL::Module *module, ParallelDispatchThreadPool::Subpool &subpool, CleanRunContext &clean_ctx);
bool rmunused_module_init(RTLIL::Module *module, ParallelDispatchThreadPool::Subpool &subpool, bool verbose);
YOSYS_NAMESPACE_END