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This commit is contained in:
Alain Dargelas 2025-03-03 11:31:27 -08:00
parent be95a08c08
commit a1ad385702
1 changed files with 16 additions and 1 deletions
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17
passes/silimate/annotate_cell_fanout.cc
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@ -389,6 +389,7 @@ void calculateFanout(RTLIL::Module *module, SigMap &sigmap, dict<RTLIL::SigSpec,
}
}
// Return substring up to a delimiter or full string if not found
std::string substringuntil(const std::string &str, char delimiter)
{
size_t pos = str.find(delimiter);
@ -402,7 +403,21 @@ std::string substringuntil(const std::string &str, char delimiter)
struct AnnotateCellFanout : public ScriptPass {
AnnotateCellFanout() : ScriptPass("annotate_cell_fanout", "Annotate the cell fanout on the cell") {}
void script() override {}
void help() override
{
log("\n");
log(" annotate_cell_fanout [options] [selection]\n");
log("\n");
log("This pass annotates cell fanout and optionally inserts balanced buffer trees to limit fanout.\n");
log("\n");
log(" -limit <limit>\n");
log(" Limits the fanout by inserting balanced buffer trees.\n");
log(" -formal\n");
log(" For formal verification to pass, will prevent splitnets passes on ports, even if they have large fanout.\n");
log(" -debug\n");
log(" Debug trace.\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) override
{
int limit = -1;