diff options
Diffstat (limited to 'passes/opt/opt.cc')
| -rw-r--r-- | passes/opt/opt.cc | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/passes/opt/opt.cc b/passes/opt/opt.cc index 8f4725e1..62aa48be 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 [-purge] [-mux_undef] [-mux_bool] [-undriven] [selection]\n"); + log(" opt [-purge] [-mux_undef] [-mux_bool] [-undriven] [-fine] [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"); @@ -42,11 +42,11 @@ struct OptPass : public Pass { log("\n"); log(" do\n"); log(" opt_muxtree\n"); - log(" opt_reduce\n"); + log(" opt_reduce [-fine]\n"); log(" opt_share\n"); log(" opt_rmdff\n"); log(" opt_clean [-purge]\n"); - log(" opt_const [-mux_undef] [-mux_bool] [-undriven]\n"); + log(" opt_const [-mux_undef] [-mux_bool] [-undriven] [-fine]\n"); log(" while [changed design]\n"); log("\n"); } @@ -54,6 +54,7 @@ struct OptPass : public Pass { { std::string opt_clean_args; std::string opt_const_args; + std::string opt_reduce_args; log_header("Executing OPT pass (performing simple optimizations).\n"); log_push(); @@ -76,6 +77,11 @@ struct OptPass : public Pass { opt_const_args += " -undriven"; continue; } + if (args[argidx] == "-fine") { + opt_const_args += " -fine"; + opt_reduce_args += " -fine"; + continue; + } break; } extra_args(args, argidx, design); @@ -88,7 +94,7 @@ struct OptPass : public Pass { while (1) { OPT_DID_SOMETHING = false; Pass::call(design, "opt_muxtree"); - Pass::call(design, "opt_reduce"); + Pass::call(design, "opt_reduce" + opt_reduce_args); Pass::call(design, "opt_share"); Pass::call(design, "opt_rmdff"); Pass::call(design, "opt_clean" + opt_clean_args); |