opt_clean: Add missing assignments to opt.did_something.

diff --git a/passes/opt/opt_clean.cc b/passes/opt/opt_clean.cc
index da3961218639f257770942269b49b60b89454bb5..6271376f1fab51a40baa1d972ec7eeb24dc80588 100644 (file)
--- a/passes/opt/opt_clean.cc
+++ b/passes/opt/opt_clean.cc
@@ -406,6 +406,9 @@ bool rmunused_module_signals(RTLIL::Module *module, bool purge_mode, bool verbos
        if (verbose && del_temp_wires_count)
                log_debug("  removed %d unused temporary wires.\n", del_temp_wires_count);
 
+       if (!del_wires_queue.empty())
+               module->design->scratchpad_set_bool("opt.did_something", true);
+
        return !del_wires_queue.empty();
 }
 
@@ -476,6 +479,9 @@ bool rmunused_module_init(RTLIL::Module *module, bool purge_mode, bool verbose)
        next_wire:;
        }
 
+       if (did_something)
+               module->design->scratchpad_set_bool("opt.did_something", true);
+
        return did_something;
 }