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remove output port bitblast index

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This commit is contained in:
Alain Dargelas 2024-11-08 16:43:52 -08:00
parent fa50434708
commit 72ff11fb9b
1 changed files with 27 additions and 1 deletions
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28
passes/cmds/splitnetlist.cc
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@ -172,7 +172,33 @@ struct SplitNetlist : public ScriptPass {
if (!wire->port_output)
continue;
std::string output_port_name = wire->name.c_str();
std::string_view po_prefix = rtrim_until(std::string_view(output_port_name), '_');
// We want to truncate the final _<index>_ part of the string
// Example: "add_Y_0_"
// Result: "add_Y"
bool bitblastedIndex = false;
std::string::iterator end = output_port_name.end()-1;
for (; end != output_port_name.begin(); end--) {
char c = (*end);
if ((end == output_port_name.end()-1) && (c == '_')) {
// bit blasted index
bitblastedIndex = true;
continue;
}
if (bitblastedIndex) {
if (c != '_') {
continue;
} else {
end--;
break;
}
}
}
if (!bitblastedIndex)
end = output_port_name.end()-1;
std::string no_bitblast_prefix;
std::copy(output_port_name.begin(), end, std::back_inserter(no_bitblast_prefix));
// We then truncate the port name, Result: "add"
std::string_view po_prefix = rtrim_until(std::string_view(no_bitblast_prefix), '_');
std::set<Cell *> visitedCells;
std::set<RTLIL::SigSpec> visitedSigSpec;
RTLIL::SigSpec actual = wire;