diff options
| -rw-r--r-- | passes/opt/opt.cc | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/passes/opt/opt.cc b/passes/opt/opt.cc index 8d259f34..8f4725e1 100644 --- a/passes/opt/opt.cc +++ b/passes/opt/opt.cc @@ -31,7 +31,7 @@ struct OptPass : public Pass { { // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| log("\n"); - log(" opt [-mux_undef] [-mux_bool] [-undriven] [selection]\n"); + log(" opt [-purge] [-mux_undef] [-mux_bool] [-undriven] [selection]\n"); log("\n"); log("This pass calls all the other opt_* passes in a useful order. This performs\n"); log("a series of trivial optimizations and cleanups. This pass executes the other\n"); @@ -45,13 +45,14 @@ struct OptPass : public Pass { log(" opt_reduce\n"); log(" opt_share\n"); log(" opt_rmdff\n"); - log(" opt_clean\n"); + log(" opt_clean [-purge]\n"); log(" opt_const [-mux_undef] [-mux_bool] [-undriven]\n"); log(" while [changed design]\n"); log("\n"); } virtual void execute(std::vector<std::string> args, RTLIL::Design *design) { + std::string opt_clean_args; std::string opt_const_args; log_header("Executing OPT pass (performing simple optimizations).\n"); @@ -59,6 +60,10 @@ struct OptPass : public Pass { size_t argidx; for (argidx = 1; argidx < args.size(); argidx++) { + if (args[argidx] == "-purge") { + opt_clean_args += " -purge"; + continue; + } if (args[argidx] == "-mux_undef") { opt_const_args += " -mux_undef"; continue; @@ -86,7 +91,7 @@ struct OptPass : public Pass { Pass::call(design, "opt_reduce"); Pass::call(design, "opt_share"); Pass::call(design, "opt_rmdff"); - Pass::call(design, "opt_clean"); + Pass::call(design, "opt_clean" + opt_clean_args); Pass::call(design, "opt_const" + opt_const_args); if (OPT_DID_SOMETHING == false) break; |