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Added help messages to proc_* passes

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This commit is contained in:
Clifford Wolf 2013-03-01 09:26:29 +01:00
parent 36954471a6
commit f952309c81
6 changed files with 110 additions and 27 deletions
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34
passes/proc/proc_rmdead.cc
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@ -62,7 +62,16 @@ static void proc_rmdead(RTLIL::SwitchRule *sw, int &counter)
}
struct ProcRmdeadPass : public Pass {
ProcRmdeadPass() : Pass("proc_rmdead") { }
ProcRmdeadPass() : Pass("proc_rmdead", "eliminate dead trees in decision trees") { }
virtual void help()
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" proc_rmdead [selection]\n");
log("\n");
log("This pass identifies unreachable branches in decision trees and removes them.\n");
log("\n");
}
virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{
log_header("Executing PROC_RMDEAD pass (remove dead branches from decision trees).\n");
@ -70,15 +79,20 @@ struct ProcRmdeadPass : public Pass {
extra_args(args, 1, design);
int total_counter = 0;
for (auto &mod_it : design->modules)
for (auto &proc_it : mod_it.second->processes) {
int counter = 0;
for (auto switch_it : proc_it.second->root_case.switches)
proc_rmdead(switch_it, counter);
if (counter > 0)
log("Removed %d dead cases from process %s in module %s.\n", counter,
proc_it.first.c_str(), mod_it.first.c_str());
total_counter += counter;
for (auto &mod_it : design->modules) {
if (!design->selected(mod_it.second))
continue;
for (auto &proc_it : mod_it.second->processes) {
if (!design->selected(mod_it.second, proc_it.second))
continue;
int counter = 0;
for (auto switch_it : proc_it.second->root_case.switches)
proc_rmdead(switch_it, counter);
if (counter > 0)
log("Removed %d dead cases from process %s in module %s.\n", counter,
proc_it.first.c_str(), mod_it.first.c_str());
total_counter += counter;
}
}
log("Removed a total of %d dead cases.\n", total_counter);