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Start opt_hier

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This commit is contained in:
Martin Povišer 2025-07-03 11:23:30 +02:00
parent 99f7d79abb
commit 22a44e4333
9 changed files with 575 additions and 6 deletions
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11
passes/opt/opt.cc
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@ -46,6 +46,7 @@ struct OptPass : public Pass {
log(" opt_merge [-share_all]\n");
log(" opt_share (-full only)\n");
log(" opt_dff [-nodffe] [-nosdff] [-keepdc] [-sat] (except when called with -noff)\n");
log(" opt_hier (-hier only)\n");
log(" opt_clean [-purge]\n");
log(" opt_expr [-mux_undef] [-mux_bool] [-undriven] [-noclkinv] [-fine] [-full] [-keepdc]\n");
log(" while <changed design>\n");
@ -56,6 +57,7 @@ struct OptPass : public Pass {
log(" opt_expr [-mux_undef] [-mux_bool] [-undriven] [-noclkinv] [-fine] [-full] [-keepdc]\n");
log(" opt_merge [-share_all]\n");
log(" opt_dff [-nodffe] [-nosdff] [-keepdc] [-sat] (except when called with -noff)\n");
log(" opt_hier (-hier only)\n");
log(" opt_clean [-purge]\n");
log(" while <changed design in opt_dff>\n");
log("\n");
@ -74,6 +76,7 @@ struct OptPass : public Pass {
bool opt_share = false;
bool fast_mode = false;
bool noff_mode = false;
bool hier_mode = false;
log_header(design, "Executing OPT pass (performing simple optimizations).\n");
log_push();
@ -141,6 +144,10 @@ struct OptPass : public Pass {
noff_mode = true;
continue;
}
if (args[argidx] == "-hier") {
hier_mode = true;
continue;
}
break;
}
extra_args(args, argidx, design);
@ -155,6 +162,8 @@ struct OptPass : public Pass {
Pass::call(design, "opt_dff" + opt_dff_args);
if (design->scratchpad_get_bool("opt.did_something") == false)
break;
if (hier_mode)
Pass::call(design, "opt_hier");
Pass::call(design, "opt_clean" + opt_clean_args);
log_header(design, "Rerunning OPT passes. (Removed registers in this run.)\n");
}
@ -173,6 +182,8 @@ struct OptPass : public Pass {
Pass::call(design, "opt_share");
if (!noff_mode)
Pass::call(design, "opt_dff" + opt_dff_args);
if (hier_mode)
Pass::call(design, "opt_hier");
Pass::call(design, "opt_clean" + opt_clean_args);
Pass::call(design, "opt_expr" + opt_expr_args);
if (design->scratchpad_get_bool("opt.did_something") == false)