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Added -o option for output file in struct_partition

This commit is contained in:
AdvaySingh1 2026-03-19 10:09:11 -07:00
parent 26db947b57
commit 8536ab69c1
1 changed files with 44 additions and 12 deletions
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56
passes/sat/struct_partition.cc
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@ -61,6 +61,7 @@
#include "kernel/sigtools.h"
#include "kernel/celltypes.h"
#include "kernel/log.h"
#include <cstdarg>
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
@ -303,22 +304,35 @@ struct StructPartitionWorker {
Module *gold_mod;
Module *gate_mod;
bool verbose;
FILE *log_file;
int total_cutpoints = 0;
int total_cells_removed = 0;
StructPartitionWorker(Design *d, Module *gold, Module *gate, bool v)
: design(d), gold_mod(gold), gate_mod(gate), verbose(v) {}
StructPartitionWorker(Design *d, Module *gold, Module *gate, bool v, FILE *lf = nullptr)
: design(d), gold_mod(gold), gate_mod(gate), verbose(v), log_file(lf) {}
void vlog(const char *fmt, ...) __attribute__((format(printf, 2, 3))) {
va_list ap;
va_start(ap, fmt);
char buf[4096];
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
if (log_file)
fputs(buf, log_file);
else
log("%s", buf);
}
void run() {
// A single shared hasher ensures the same intern IDs across both modules
StructuralHasher hasher;
log("Structural partitioning: analyzing module `%s'.\n", gold_mod->name.c_str());
vlog("Structural partitioning: analyzing module `%s'.\n", gold_mod->name.c_str());
ModuleAnalysis gold_analysis(gold_mod, design);
gold_analysis.hash_all_cells(hasher);
log("Structural partitioning: analyzing module `%s'.\n", gate_mod->name.c_str());
vlog("Structural partitioning: analyzing module `%s'.\n", gate_mod->name.c_str());
ModuleAnalysis gate_analysis(gate_mod, design);
gate_analysis.hash_all_cells(hasher);
@ -347,12 +361,12 @@ struct StructPartitionWorker {
}
if (groups.empty()) {
log("No structural matches found between `%s' and `%s'.\n",
vlog("No structural matches found between `%s' and `%s'.\n",
gold_mod->name.c_str(), gate_mod->name.c_str());
return;
}
log("Found %d structurally matched groups.\n", (int)groups.size());
vlog("Found %d structurally matched groups.\n", (int)groups.size());
// For each group, create cutpoint PIs and rewire
for (auto &group : groups)
@ -366,7 +380,7 @@ struct StructPartitionWorker {
gold_mod->fixup_ports();
gate_mod->fixup_ports();
log("Structural partitioning: created %d cutpoints, removed %d cells.\n",
vlog("Structural partitioning: created %d cutpoints, removed %d cells.\n",
total_cutpoints, total_cells_removed);
}
@ -408,7 +422,7 @@ private:
total_cutpoints++;
if (verbose)
log(" Cutpoint %s (width %d) for %d+%d cells of type %s.\n",
vlog(" Cutpoint %s (width %d) for %d+%d cells of type %s.\n",
cut_name.c_str(), width,
(int)gold_cells.size(), (int)gate_cells.size(),
representative->type.c_str());
@ -438,13 +452,13 @@ private:
// Remove the matched cells
for (auto cell : gold_cells) {
if (verbose)
log_debug(" Removing gold cell `%s'.\n", cell->name.c_str());
vlog(" Removing gold cell `%s'.\n", cell->name.c_str());
gold_mod->remove(cell);
total_cells_removed++;
}
for (auto cell : gate_cells) {
if (verbose)
log_debug(" Removing gate cell `%s'.\n", cell->name.c_str());
vlog(" Removing gate cell `%s'.\n", cell->name.c_str());
gate_mod->remove(cell);
total_cells_removed++;
}
@ -509,7 +523,7 @@ private:
for (auto cell : to_remove) {
if (verbose)
log_debug(" Dead cell removal: `%s' (%s).\n",
vlog(" Dead cell removal: `%s' (%s).\n",
cell->name.c_str(), cell->type.c_str());
mod->remove(cell);
total_cells_removed++;
@ -554,6 +568,9 @@ struct StructPartitionPass : public Pass {
log(" -v\n");
log(" verbose output: log each cutpoint and removed cell\n");
log("\n");
log(" -o <file>\n");
log(" write verbose log output to <file> instead of standard log\n");
log("\n");
log("Typical usage:\n");
log("\n");
log(" read_rtlil gold.il\n");
@ -567,6 +584,7 @@ struct StructPartitionPass : public Pass {
void execute(std::vector<std::string> args, RTLIL::Design *design) override
{
bool verbose = false;
std::string log_file_path;
log_header(design, "Executing STRUCT_PARTITION pass.\n");
@ -576,6 +594,10 @@ struct StructPartitionPass : public Pass {
verbose = true;
continue;
}
if (args[argidx] == "-o" && argidx + 1 < args.size()) {
log_file_path = args[++argidx];
continue;
}
break;
}
@ -606,8 +628,18 @@ struct StructPartitionPass : public Pass {
gold_wire->name.c_str(), gold_wire->width, gate_wire->width);
}
StructPartitionWorker worker(design, gold_mod, gate_mod, verbose);
FILE *log_file = nullptr;
if (!log_file_path.empty()) {
log_file = fopen(log_file_path.c_str(), "w");
if (!log_file)
log_cmd_error("Cannot open output file `%s'.\n", log_file_path.c_str());
}
StructPartitionWorker worker(design, gold_mod, gate_mod, verbose, log_file);
worker.run();
if (log_file)
fclose(log_file);
}
} StructPartitionPass;