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Fixed "abc" pass for clk and enable signals driven by logic

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This commit is contained in:
Clifford Wolf 2014-12-21 11:13:25 +01:00
parent f7b323196f
commit 25844b5683
1 changed files with 8 additions and 6 deletions
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14
passes/abc/abc.cc
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@ -147,6 +147,8 @@ void extract_cell(RTLIL::Cell *cell, bool keepff)
return; return;
if (clk_sig != assign_map(cell->getPort("\\C"))) if (clk_sig != assign_map(cell->getPort("\\C")))
return; return;
if (GetSize(en_sig) != 0)
return;
goto matching_dff; goto matching_dff;
} }
@ -692,12 +694,6 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin
} }
} }
if (clk_sig.size() != 0)
mark_port(clk_sig);
if (en_sig.size() != 0)
mark_port(en_sig);
std::vector<RTLIL::Cell*> cells; std::vector<RTLIL::Cell*> cells;
cells.reserve(module->cells_.size()); cells.reserve(module->cells_.size());
for (auto &it : module->cells_) for (auto &it : module->cells_)
@ -715,6 +711,12 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin
for (auto &port_it : cell_it.second->connections()) for (auto &port_it : cell_it.second->connections())
mark_port(port_it.second); mark_port(port_it.second);
if (clk_sig.size() != 0)
mark_port(clk_sig);
if (en_sig.size() != 0)
mark_port(en_sig);
handle_loops(); handle_loops();
std::string buffer = stringf("%s/input.blif", tempdir_name.c_str()); std::string buffer = stringf("%s/input.blif", tempdir_name.c_str());