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mcclellan: improve wide-state checking in Sherman optimization

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fixes github issue #305
This commit is contained in:
Hong, Yang A 2021-03-04 17:00:34 +00:00
parent 0b246c801a
commit 7f4a806118
1 changed files with 3 additions and 1 deletions
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4
src/nfa/mcclellancompile.cpp
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@ -1082,7 +1082,9 @@ void find_better_daddy(dfa_info &info, dstate_id_t curr_id, bool using8bit,
// Use the daddy already set for this state so long as it isn't already
// a Sherman state.
dstate_id_t daddy = currState.daddy;
if (!info.is_sherman(daddy) && !info.is_widestate(daddy)) {
if (info.is_widestate(daddy)) {
return;
} else if (!info.is_sherman(daddy)) {
hinted.insert(currState.daddy);
} else {
// Fall back to granddaddy, which has already been processed (due