diff options
Diffstat (limited to 'passes/opt/opt.cc')
| -rw-r--r-- | passes/opt/opt.cc | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/passes/opt/opt.cc b/passes/opt/opt.cc index 467baf23..53c27e0f 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 [selection]\n"); + log(" opt [-mux_undef] [-mux_bool] [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"); @@ -46,16 +46,30 @@ struct OptPass : public Pass { log(" opt_share\n"); log(" opt_rmdff\n"); log(" opt_clean\n"); - log(" opt_const\n"); + log(" opt_const [-mux_undef] [-mux_bool]\n"); log(" while [changed design]\n"); log("\n"); } virtual void execute(std::vector<std::string> args, RTLIL::Design *design) { + std::string opt_const_args; + log_header("Executing OPT pass (performing simple optimizations).\n"); log_push(); - extra_args(args, 1, design); + size_t argidx; + for (argidx = 1; argidx < args.size(); argidx++) { + if (args[argidx] == "-mux_undef") { + opt_const_args += " -mux_undef"; + continue; + } + if (args[argidx] == "-mux_bool") { + opt_const_args += " -mux_bool"; + continue; + } + break; + } + extra_args(args, argidx, design); log_header("Optimizing in-memory representation of design.\n"); design->optimize(); @@ -69,7 +83,7 @@ struct OptPass : public Pass { Pass::call(design, "opt_share"); Pass::call(design, "opt_rmdff"); Pass::call(design, "opt_clean"); - Pass::call(design, "opt_const"); + Pass::call(design, "opt_const" + opt_const_args); if (OPT_DID_SOMETHING == false) break; log_header("Rerunning OPT passes. (Maybe there is more to do..)\n"); |