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Merge pull request #730 from smunaut/ffssr_dont_touch 

ice40: Honor the "dont_touch" attribute in FFSSR pass
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Clifford Wolf 2018-12-16 15:50:42 +01:00 committed by GitHub
parent f481ad4d44 add6ab9b2a
commit ceffa66dbd
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1 changed files with 3 additions and 0 deletions
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3
techlibs/ice40/ice40_ffssr.cc
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@ -81,6 +81,9 @@ struct Ice40FfssrPass : public Pass {
for (auto cell : ff_cells) for (auto cell : ff_cells)
{ {
if (cell->get_bool_attribute("\\dont_touch"))
continue;
SigSpec sig_d = cell->getPort("\\D"); SigSpec sig_d = cell->getPort("\\D");
if (GetSize(sig_d) < 1) if (GetSize(sig_d) < 1)