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Don't be too smart with $dff cells with "init" attribute on out signal

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This commit is contained in:
Clifford Wolf 2014-10-16 11:49:31 +02:00
parent 66eb254fc2
commit 18cb8b4636
1 changed files with 1 additions and 1 deletions
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2
passes/opt/opt_rmdff.cc
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@ -83,7 +83,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
val_init.bits.push_back(bit.wire == NULL ? bit.data : RTLIL::State::Sx); val_init.bits.push_back(bit.wire == NULL ? bit.data : RTLIL::State::Sx);
} }
if (dff->type == "$dff" && mux_drivers.has(sig_d)) { if (dff->type == "$dff" && mux_drivers.has(sig_d) && !has_init) {
std::set<RTLIL::Cell*> muxes; std::set<RTLIL::Cell*> muxes;
mux_drivers.find(sig_d, muxes); mux_drivers.find(sig_d, muxes);
for (auto mux : muxes) { for (auto mux : muxes) {