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cxxrtl: always lazily format print messages.

Browse source 
This is mostly useful for collecting coverage for the future `$check`
cell, where, depending on the flavor, formatting a message may not be
wanted even for a failed assertion.
This commit is contained in:
Catherine 2024-01-19 15:54:33 +00:00
parent b74d33d1b8
commit fc5ff7a265
3 changed files with 40 additions and 9 deletions
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32
backends/cxxrtl/cxxrtl_backend.cc
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@ -1072,21 +1072,43 @@ struct CxxrtlWorker {
dump_sigspec_rhs(cell->getPort(ID::EN));
f << " == value<1>{1u}) {\n";
inc_indent();
f << indent << "auto formatter = [&](struct performer *performer) {\n";
dict<std::string, RTLIL::SigSpec> fmt_args;
f << indent << "struct : public lazy_fmt {\n";
inc_indent();
fmt.emit_cxxrtl(f, indent, [this](const RTLIL::SigSpec &sig) { dump_sigspec_rhs(sig); }, "performer");
f << indent << "std::string operator() () const override {\n";
inc_indent();
fmt.emit_cxxrtl(f, indent, [&](const RTLIL::SigSpec &sig) {
if (sig.size() == 0)
f << "value<0>()";
else {
std::string arg_name = "arg" + std::to_string(fmt_args.size());
fmt_args[arg_name] = sig;
f << arg_name;
}
}, "performer");
dec_indent();
f << indent << "}\n";
f << indent << "struct performer *performer;\n";
for (auto arg : fmt_args)
f << indent << "value<" << arg.second.size() << "> " << arg.first << ";\n";
dec_indent();
f << indent << "};\n";
f << indent << "} formatter;\n";
f << indent << "formatter.performer = performer;\n";
for (auto arg : fmt_args) {
f << indent << "formatter." << arg.first << " = ";
dump_sigspec_rhs(arg.second);
f << ";\n";
}
f << indent << "if (performer) {\n";
inc_indent();
f << indent << "static const metadata_map attributes = ";
dump_metadata_map(cell->attributes);
f << ";\n";
f << indent << "performer->on_print(formatter(performer), attributes);\n";
f << indent << "performer->on_print(formatter, attributes);\n";
dec_indent();
f << indent << "} else {\n";
inc_indent();
f << indent << print_output << " << formatter(performer);\n";
f << indent << print_output << " << formatter();\n";
dec_indent();
f << indent << "}\n";
dec_indent();