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opt_clean: Assert an impossible path isn't taken

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This commit is contained in:
Martin Povišer 2024-01-09 11:54:38 +01:00
parent ec065186d3
commit 7afc0696e2
1 changed files with 3 additions and 0 deletions
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passes/opt/opt_clean.cc
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@ -438,6 +438,9 @@ bool rmunused_module_signals(RTLIL::Module *module, bool purge_mode, bool verbos
goto delete_this_wire;
} else
if (!used_signals.check_any(s2)) {
// this path shouldn't be possible: this wire is used directly (otherwise it would get cleaned up above), and indirectly
// used wires are a superset of those used directly
log_assert(false);
// delete wires that aren't used by anything indirectly, even though other wires may alias it
goto delete_this_wire;
}