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cxxrtl: don't emit syncs for empty lhs.

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This commit is contained in:
Asherah Connor 2024-05-26 18:31:32 +03:00
parent dc69365258
commit e97c36d4c4
1 changed files with 1 additions and 1 deletions
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2
backends/cxxrtl/cxxrtl_backend.cc
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@ -1138,7 +1138,7 @@ struct CxxrtlWorker {
f << indent << "// cell " << cell->name.str() << " syncs\n"; f << indent << "// cell " << cell->name.str() << " syncs\n";
for (auto conn : cell->connections()) for (auto conn : cell->connections())
if (cell->output(conn.first)) if (cell->output(conn.first))
if (is_cxxrtl_sync_port(cell, conn.first)) { if (is_cxxrtl_sync_port(cell, conn.first) && !conn.second.empty()) {
f << indent; f << indent;
dump_sigspec_lhs(conn.second, for_debug); dump_sigspec_lhs(conn.second, for_debug);
f << " = " << mangle(cell) << access << mangle_wire_name(conn.first) << ".curr;\n"; f << " = " << mangle(cell) << access << mangle_wire_name(conn.first) << ".curr;\n";