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read_aiger to name wires with internal name, less likely to clash

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This commit is contained in:
Eddie Hung 2019-02-20 11:22:56 -08:00
parent ef60ca1717
commit 83b66861e9
1 changed files with 15 additions and 18 deletions
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33
frontends/aiger/aigerparse.cc
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@ -221,14 +221,14 @@ static RTLIL::Wire* createWireIfNotExists(RTLIL::Module *module, unsigned litera
{ {
const unsigned variable = literal >> 1; const unsigned variable = literal >> 1;
const bool invert = literal & 1; const bool invert = literal & 1;
RTLIL::IdString wire_name(stringf("\\n%d%s", variable, invert ? "_inv" : "")); // FIXME: is "_inv" the right suffix? RTLIL::IdString wire_name(stringf("\\__%d%s__", variable, invert ? "b" : "")); // FIXME: is "b" the right suffix?
RTLIL::Wire *wire = module->wire(wire_name); RTLIL::Wire *wire = module->wire(wire_name);
if (wire) return wire; if (wire) return wire;
log_debug("Creating %s\n", wire_name.c_str()); log_debug("Creating %s\n", wire_name.c_str());
wire = module->addWire(wire_name); wire = module->addWire(wire_name);
wire->port_input = wire->port_output = false; wire->port_input = wire->port_output = false;
if (!invert) return wire; if (!invert) return wire;
RTLIL::IdString wire_inv_name(stringf("\\n%d", variable)); RTLIL::IdString wire_inv_name(stringf("\\__%d__", variable));
RTLIL::Wire *wire_inv = module->wire(wire_inv_name); RTLIL::Wire *wire_inv = module->wire(wire_inv_name);
if (wire_inv) { if (wire_inv) {
if (module->cell(wire_inv_name)) return wire; if (module->cell(wire_inv_name)) return wire;
@ -240,7 +240,7 @@ static RTLIL::Wire* createWireIfNotExists(RTLIL::Module *module, unsigned litera
} }
log_debug("Creating %s = ~%s\n", wire_name.c_str(), wire_inv_name.c_str()); log_debug("Creating %s = ~%s\n", wire_name.c_str(), wire_inv_name.c_str());
module->addNotGate(stringf("\\n%d_not", variable), wire_inv, wire); // FIXME: is "_not" the right suffix? module->addNotGate(stringf("\\__%d__not", variable), wire_inv, wire); // FIXME: is "not" the right suffix?
return wire; return wire;
} }
@ -300,13 +300,13 @@ void AigerReader::parse_xaiger()
uint32_t rootNodeID = parse_xaiger_literal(f); uint32_t rootNodeID = parse_xaiger_literal(f);
uint32_t cutLeavesM = parse_xaiger_literal(f); uint32_t cutLeavesM = parse_xaiger_literal(f);
log_debug("rootNodeID=%d cutLeavesM=%d\n", rootNodeID, cutLeavesM); log_debug("rootNodeID=%d cutLeavesM=%d\n", rootNodeID, cutLeavesM);
RTLIL::Wire *output_sig = module->wire(stringf("\\n%d", rootNodeID)); RTLIL::Wire *output_sig = module->wire(stringf("\\__%d__", rootNodeID));
uint32_t nodeID; uint32_t nodeID;
RTLIL::SigSpec input_sig; RTLIL::SigSpec input_sig;
for (unsigned j = 0; j < cutLeavesM; ++j) { for (unsigned j = 0; j < cutLeavesM; ++j) {
nodeID = parse_xaiger_literal(f); nodeID = parse_xaiger_literal(f);
log_debug("\t%u\n", nodeID); log_debug("\t%u\n", nodeID);
RTLIL::Wire *wire = module->wire(stringf("\\n%d", nodeID)); RTLIL::Wire *wire = module->wire(stringf("\\__%d__", nodeID));
log_assert(wire); log_assert(wire);
input_sig.append(wire); input_sig.append(wire);
} }
@ -319,10 +319,10 @@ void AigerReader::parse_xaiger()
lut_mask[j] = o.as_const()[0]; lut_mask[j] = o.as_const()[0];
ce.pop(); ce.pop();
} }
RTLIL::Cell *output_cell = module->cell(stringf("\\n%d_and", rootNodeID)); RTLIL::Cell *output_cell = module->cell(stringf("\\__%d__and", rootNodeID));
log_assert(output_cell); log_assert(output_cell);
module->remove(output_cell); module->remove(output_cell);
module->addLut(stringf("\\n%d_lut", rootNodeID), input_sig, output_sig, std::move(lut_mask)); module->addLut(stringf("\\__%d__lut", rootNodeID), input_sig, output_sig, std::move(lut_mask));
} }
} }
else if (c == 'n') { else if (c == 'n') {
@ -383,9 +383,6 @@ void AigerReader::parse_xaiger()
log_assert(static_cast<unsigned>(variable) < outputs.size()); log_assert(static_cast<unsigned>(variable) < outputs.size());
RTLIL::Wire* wire = outputs[variable]; RTLIL::Wire* wire = outputs[variable];
log_assert(wire); log_assert(wire);
// Ignore direct output -> input connections
if (!wire->port_output)
continue;
log_assert(wire->port_output); log_assert(wire->port_output);
RTLIL::Cell* driver = module->cell(stringf("%s_lut", wire->name.c_str())); RTLIL::Cell* driver = module->cell(stringf("%s_lut", wire->name.c_str()));
@ -517,7 +514,7 @@ void AigerReader::parse_aiger_ascii()
RTLIL::Wire *wire; RTLIL::Wire *wire;
if (l1 == 0 || l1 == 1) { if (l1 == 0 || l1 == 1) {
wire = module->addWire(stringf("\\o%zu", outputs.size())); wire = module->addWire(NEW_ID);
if (l1 == 0) if (l1 == 0)
module->connect(wire, RTLIL::State::S0); module->connect(wire, RTLIL::State::S0);
else if (l1 == 1) else if (l1 == 1)
@ -529,13 +526,13 @@ void AigerReader::parse_aiger_ascii()
log_debug("%d is an output\n", l1); log_debug("%d is an output\n", l1);
const unsigned variable = l1 >> 1; const unsigned variable = l1 >> 1;
const bool invert = l1 & 1; const bool invert = l1 & 1;
RTLIL::IdString wire_name(stringf("\\n%d%s", variable, invert ? "_inv" : "")); // FIXME: is "_inv" the right suffix? RTLIL::IdString wire_name(stringf("\\__%d%s__", variable, invert ? "b" : "")); // FIXME: is "b" the right suffix?
wire = module->wire(wire_name); wire = module->wire(wire_name);
if (!wire) if (!wire)
wire = createWireIfNotExists(module, l1); wire = createWireIfNotExists(module, l1);
else { else {
if ((wire->port_input || wire->port_output)) { if ((wire->port_input || wire->port_output)) {
RTLIL::Wire *new_wire = module->addWire(stringf("\\o%zu", outputs.size())); RTLIL::Wire *new_wire = module->addWire(NEW_ID);
module->connect(new_wire, wire); module->connect(new_wire, wire);
wire = new_wire; wire = new_wire;
} }
@ -572,7 +569,7 @@ void AigerReader::parse_aiger_ascii()
RTLIL::Wire *o_wire = createWireIfNotExists(module, l1); RTLIL::Wire *o_wire = createWireIfNotExists(module, l1);
RTLIL::Wire *i1_wire = createWireIfNotExists(module, l2); RTLIL::Wire *i1_wire = createWireIfNotExists(module, l2);
RTLIL::Wire *i2_wire = createWireIfNotExists(module, l3); RTLIL::Wire *i2_wire = createWireIfNotExists(module, l3);
module->addAndGate(o_wire->name.str() + "_and", i1_wire, i2_wire, o_wire); module->addAndGate(o_wire->name.str() + "and", i1_wire, i2_wire, o_wire);
} }
std::getline(f, line); std::getline(f, line);
} }
@ -647,7 +644,7 @@ void AigerReader::parse_aiger_binary()
RTLIL::Wire *wire; RTLIL::Wire *wire;
if (l1 == 0 || l1 == 1) { if (l1 == 0 || l1 == 1) {
wire = module->addWire(stringf("\\o%zu", outputs.size())); wire = module->addWire(NEW_ID);
if (l1 == 0) if (l1 == 0)
module->connect(wire, RTLIL::State::S0); module->connect(wire, RTLIL::State::S0);
else if (l1 == 1) else if (l1 == 1)
@ -659,13 +656,13 @@ void AigerReader::parse_aiger_binary()
log_debug("%d is an output\n", l1); log_debug("%d is an output\n", l1);
const unsigned variable = l1 >> 1; const unsigned variable = l1 >> 1;
const bool invert = l1 & 1; const bool invert = l1 & 1;
RTLIL::IdString wire_name(stringf("\\n%d%s", variable, invert ? "_inv" : "")); // FIXME: is "_inv" the right suffix? RTLIL::IdString wire_name(stringf("\\__%d%s__", variable, invert ? "_b" : "")); // FIXME: is "_inv" the right suffix?
wire = module->wire(wire_name); wire = module->wire(wire_name);
if (!wire) if (!wire)
wire = createWireIfNotExists(module, l1); wire = createWireIfNotExists(module, l1);
else { else {
if ((wire->port_input || wire->port_output)) { if ((wire->port_input || wire->port_output)) {
RTLIL::Wire *new_wire = module->addWire(stringf("\\o%zu", outputs.size())); RTLIL::Wire *new_wire = module->addWire(NEW_ID);
module->connect(new_wire, wire); module->connect(new_wire, wire);
wire = new_wire; wire = new_wire;
} }
@ -703,7 +700,7 @@ void AigerReader::parse_aiger_binary()
RTLIL::Wire *o_wire = createWireIfNotExists(module, l1); RTLIL::Wire *o_wire = createWireIfNotExists(module, l1);
RTLIL::Wire *i1_wire = createWireIfNotExists(module, l2); RTLIL::Wire *i1_wire = createWireIfNotExists(module, l2);
RTLIL::Wire *i2_wire = createWireIfNotExists(module, l3); RTLIL::Wire *i2_wire = createWireIfNotExists(module, l3);
module->addAndGate(o_wire->name.str() + "_and", i1_wire, i2_wire, o_wire); module->addAndGate(o_wire->name.str() + "and", i1_wire, i2_wire, o_wire);
} }
} }