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Added help messages for opt_* passes

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This commit is contained in:
Clifford Wolf 2013-03-01 08:58:55 +01:00
parent 1bc0f04789
commit 36954471a6
7 changed files with 127 additions and 11 deletions
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21
passes/opt/opt_const.cc
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@ -44,14 +44,18 @@ void replace_cell(RTLIL::Module *module, RTLIL::Cell *cell, std::string info, st
did_something = true;
}
void replace_const_cells(RTLIL::Module *module)
void replace_const_cells(RTLIL::Design *design, RTLIL::Module *module)
{
if (!design->selected(module))
return;
SigMap assign_map(module);
std::vector<RTLIL::Cell*> cells;
cells.reserve(module->cells.size());
for (auto &cell_it : module->cells)
cells.push_back(cell_it.second);
if (design->selected(module, cell_it.second))
cells.push_back(cell_it.second);
for (auto cell : cells)
{
@ -249,7 +253,16 @@ void replace_const_cells(RTLIL::Module *module)
}
struct OptConstPass : public Pass {
OptConstPass() : Pass("opt_const") { }
OptConstPass() : Pass("opt_const", "perform const folding") { }
virtual void help()
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" opt_const [selection]\n");
log("\n");
log("This pass performs const folding on internal cell types with constant inputs.\n");
log("\n");
}
virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{
log_header("Executing OPT_CONST pass (perform const folding).\n");
@ -260,7 +273,7 @@ struct OptConstPass : public Pass {
for (auto &mod_it : design->modules)
do {
did_something = false;
replace_const_cells(mod_it.second);
replace_const_cells(design, mod_it.second);
} while (did_something);
log_pop();