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add picorv test to functional backend

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This commit is contained in:
Emily Schmidt 2024-08-08 15:38:24 +01:00
parent 50047d25b3
commit 831da51255
5 changed files with 3135 additions and 2 deletions
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17
kernel/functional.cc
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@ -530,6 +530,7 @@ public:
memories[mem.cell] = &mem;
}
}
private:
Node concatenate_read_results(Mem *mem, vector<Node> results)
{
// sanity check: all read ports concatenated should equal to the RD_DATA port
@ -632,6 +633,17 @@ public:
}
}
}
void undriven(const char *name) {
log_error("The design contains an undriven signal %s. This is not supported by the functional backend. "
"Call setundef with appropriate options to avoid this error.\n", name);
}
// we perform this check separately to give better error messages that include the wire or port name
void check_undriven(DriveSpec const& spec, std::string const& name) {
for(auto const &chunk : spec.chunks())
if(chunk.is_none())
undriven(name.c_str());
}
public:
void process_queue()
{
for (; !queue.empty(); queue.pop_front()) {
@ -660,6 +672,7 @@ public:
factory.update_pending(pending, node);
} else {
DriveSpec driver = driver_map(DriveSpec(wire_chunk));
check_undriven(driver, RTLIL::unescape_id(wire_chunk.wire->name));
Node node = enqueue(driver);
factory.suggest_name(node, wire_chunk.wire->name);
factory.update_pending(pending, node);
@ -677,6 +690,7 @@ public:
factory.update_pending(pending, node);
} else {
DriveSpec driver = driver_map(DriveSpec(port_chunk));
check_undriven(driver, RTLIL::unescape_id(port_chunk.cell->name) + " port " + RTLIL::unescape_id(port_chunk.port));
factory.update_pending(pending, enqueue(driver));
}
} else {
@ -692,8 +706,7 @@ public:
log_error("Signal %s has multiple drivers. This is not supported by the functional backend. "
"If tristate drivers are used, call tristate -formal to avoid this error.\n", log_signal(chunk));
} else if (chunk.is_none()) {
log_error("The design contains an undriven signal %s. This is not supported by the functional backend. "
"Call setundef with appropriate options to avoid this error.\n", log_signal(chunk));
undriven(log_signal(chunk));
} else {
log_error("unhandled drivespec: %s\n", log_signal(chunk));
log_abort();