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Merge pull request #1770 from YosysHQ/claire/btor_symbols 

Improve write_btor symbol handling
This commit is contained in:
Claire Wolf 2020-04-02 15:38:47 +02:00 committed by GitHub
parent 104c004e6d bf018b184d
commit d1fc4321f0
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 60 additions and 36 deletions
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94
backends/btor/btor.cc
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@ -72,6 +72,7 @@ struct BtorWorker
vector<int> bad_properties; vector<int> bad_properties;
dict<SigBit, bool> initbits; dict<SigBit, bool> initbits;
pool<Wire*> statewires; pool<Wire*> statewires;
pool<string> srcsymbols;
string indent, info_filename; string indent, info_filename;
vector<string> info_lines; vector<string> info_lines;
@ -93,6 +94,32 @@ struct BtorWorker
va_end(ap); va_end(ap);
} }
template<typename T>
string getinfo(T *obj, bool srcsym = false)
{
string infostr = log_id(obj);
if (obj->attributes.count("\\src")) {
string src = obj->attributes.at("\\src").decode_string().c_str();
if (srcsym && infostr[0] == '$') {
std::replace(src.begin(), src.end(), ' ', '_');
if (srcsymbols.count(src) || module->count_id("\\" + src)) {
for (int i = 1;; i++) {
string s = stringf("%s-%d", src.c_str(), i);
if (!srcsymbols.count(s) && !module->count_id("\\" + s)) {
src = s;
break;
}
}
}
srcsymbols.insert(src);
infostr = src;
} else {
infostr += " ; " + src;
}
}
return infostr;
}
void btorf_push(const string &id) void btorf_push(const string &id)
{ {
if (verbose) { if (verbose) {
@ -215,7 +242,7 @@ struct BtorWorker
btorf("%d slt %d %d %d\n", nid_b_ltz, sid_bit, nid_b, nid_zero); btorf("%d slt %d %d %d\n", nid_b_ltz, sid_bit, nid_b, nid_zero);
nid = next_nid++; nid = next_nid++;
btorf("%d ite %d %d %d %d\n", nid, sid, nid_b_ltz, nid_l, nid_r); btorf("%d ite %d %d %d %d %s\n", nid, sid, nid_b_ltz, nid_l, nid_r, getinfo(cell).c_str());
} }
else else
{ {
@ -223,7 +250,7 @@ struct BtorWorker
int nid_b = get_sig_nid(cell->getPort("\\B"), width, b_signed); int nid_b = get_sig_nid(cell->getPort("\\B"), width, b_signed);
nid = next_nid++; nid = next_nid++;
btorf("%d %s %d %d %d\n", nid, btor_op.c_str(), sid, nid_a, nid_b); btorf("%d %s %d %d %d %s\n", nid, btor_op.c_str(), sid, nid_a, nid_b, getinfo(cell).c_str());
} }
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -258,7 +285,7 @@ struct BtorWorker
int sid = get_bv_sid(width); int sid = get_bv_sid(width);
int nid = next_nid++; int nid = next_nid++;
btorf("%d %c%s %d %d %d\n", nid, a_signed || b_signed ? 's' : 'u', btor_op.c_str(), sid, nid_a, nid_b); btorf("%d %c%s %d %d %d %s\n", nid, a_signed || b_signed ? 's' : 'u', btor_op.c_str(), sid, nid_a, nid_b, getinfo(cell).c_str());
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -284,12 +311,12 @@ struct BtorWorker
if (cell->type == "$_ANDNOT_") { if (cell->type == "$_ANDNOT_") {
btorf("%d not %d %d\n", nid1, sid, nid_b); btorf("%d not %d %d\n", nid1, sid, nid_b);
btorf("%d and %d %d %d\n", nid2, sid, nid_a, nid1); btorf("%d and %d %d %d %s\n", nid2, sid, nid_a, nid1, getinfo(cell).c_str());
} }
if (cell->type == "$_ORNOT_") { if (cell->type == "$_ORNOT_") {
btorf("%d not %d %d\n", nid1, sid, nid_b); btorf("%d not %d %d\n", nid1, sid, nid_b);
btorf("%d or %d %d %d\n", nid2, sid, nid_a, nid1); btorf("%d or %d %d %d %s\n", nid2, sid, nid_a, nid1, getinfo(cell).c_str());
} }
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -311,13 +338,13 @@ struct BtorWorker
if (cell->type == "$_OAI3_") { if (cell->type == "$_OAI3_") {
btorf("%d or %d %d %d\n", nid1, sid, nid_a, nid_b); btorf("%d or %d %d %d\n", nid1, sid, nid_a, nid_b);
btorf("%d and %d %d %d\n", nid2, sid, nid1, nid_c); btorf("%d and %d %d %d\n", nid2, sid, nid1, nid_c);
btorf("%d not %d %d\n", nid3, sid, nid2); btorf("%d not %d %d %s\n", nid3, sid, nid2, getinfo(cell).c_str());
} }
if (cell->type == "$_AOI3_") { if (cell->type == "$_AOI3_") {
btorf("%d and %d %d %d\n", nid1, sid, nid_a, nid_b); btorf("%d and %d %d %d\n", nid1, sid, nid_a, nid_b);
btorf("%d or %d %d %d\n", nid2, sid, nid1, nid_c); btorf("%d or %d %d %d\n", nid2, sid, nid1, nid_c);
btorf("%d not %d %d\n", nid3, sid, nid2); btorf("%d not %d %d %s\n", nid3, sid, nid2, getinfo(cell).c_str());
} }
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -342,14 +369,14 @@ struct BtorWorker
btorf("%d or %d %d %d\n", nid1, sid, nid_a, nid_b); btorf("%d or %d %d %d\n", nid1, sid, nid_a, nid_b);
btorf("%d or %d %d %d\n", nid2, sid, nid_c, nid_d); btorf("%d or %d %d %d\n", nid2, sid, nid_c, nid_d);
btorf("%d and %d %d %d\n", nid3, sid, nid1, nid2); btorf("%d and %d %d %d\n", nid3, sid, nid1, nid2);
btorf("%d not %d %d\n", nid4, sid, nid3); btorf("%d not %d %d %s\n", nid4, sid, nid3, getinfo(cell).c_str());
} }
if (cell->type == "$_AOI4_") { if (cell->type == "$_AOI4_") {
btorf("%d and %d %d %d\n", nid1, sid, nid_a, nid_b); btorf("%d and %d %d %d\n", nid1, sid, nid_a, nid_b);
btorf("%d and %d %d %d\n", nid2, sid, nid_c, nid_d); btorf("%d and %d %d %d\n", nid2, sid, nid_c, nid_d);
btorf("%d or %d %d %d\n", nid3, sid, nid1, nid2); btorf("%d or %d %d %d\n", nid3, sid, nid1, nid2);
btorf("%d not %d %d\n", nid4, sid, nid3); btorf("%d not %d %d %s\n", nid4, sid, nid3, getinfo(cell).c_str());
} }
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -381,9 +408,9 @@ struct BtorWorker
int nid = next_nid++; int nid = next_nid++;
if (cell->type.in("$lt", "$le", "$ge", "$gt")) { if (cell->type.in("$lt", "$le", "$ge", "$gt")) {
btorf("%d %c%s %d %d %d\n", nid, a_signed || b_signed ? 's' : 'u', btor_op.c_str(), sid, nid_a, nid_b); btorf("%d %c%s %d %d %d %s\n", nid, a_signed || b_signed ? 's' : 'u', btor_op.c_str(), sid, nid_a, nid_b, getinfo(cell).c_str());
} else { } else {
btorf("%d %s %d %d %d\n", nid, btor_op.c_str(), sid, nid_a, nid_b); btorf("%d %s %d %d %d %s\n", nid, btor_op.c_str(), sid, nid_a, nid_b, getinfo(cell).c_str());
} }
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -415,7 +442,7 @@ struct BtorWorker
int nid_a = get_sig_nid(cell->getPort("\\A"), width, a_signed); int nid_a = get_sig_nid(cell->getPort("\\A"), width, a_signed);
int nid = next_nid++; int nid = next_nid++;
btorf("%d %s %d %d\n", nid, btor_op.c_str(), sid, nid_a); btorf("%d %s %d %d\n", nid, btor_op.c_str(), sid, nid_a, getinfo(cell).c_str());
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -456,9 +483,9 @@ struct BtorWorker
int nid = next_nid++; int nid = next_nid++;
if (btor_op != "not") if (btor_op != "not")
btorf("%d %s %d %d %d\n", nid, btor_op.c_str(), sid, nid_a, nid_b); btorf("%d %s %d %d %d\n", nid, btor_op.c_str(), sid, nid_a, nid_b, getinfo(cell).c_str());
else else
btorf("%d %s %d %d\n", nid, btor_op.c_str(), sid, nid_a); btorf("%d %s %d %d\n", nid, btor_op.c_str(), sid, nid_a, getinfo(cell).c_str());
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -486,12 +513,14 @@ struct BtorWorker
int nid_a = get_sig_nid(cell->getPort("\\A")); int nid_a = get_sig_nid(cell->getPort("\\A"));
int nid = next_nid++; int nid = next_nid++;
btorf("%d %s %d %d\n", nid, btor_op.c_str(), sid, nid_a);
if (cell->type == "$reduce_xnor") { if (cell->type == "$reduce_xnor") {
int nid2 = next_nid++; int nid2 = next_nid++;
btorf("%d %s %d %d %s\n", nid, btor_op.c_str(), sid, nid_a, getinfo(cell).c_str());
btorf("%d not %d %d %d\n", nid2, sid, nid); btorf("%d not %d %d %d\n", nid2, sid, nid);
nid = nid2; nid = nid2;
} else {
btorf("%d %s %d %d %s\n", nid, btor_op.c_str(), sid, nid_a, getinfo(cell).c_str());
} }
SigSpec sig = sigmap(cell->getPort("\\Y")); SigSpec sig = sigmap(cell->getPort("\\Y"));
@ -521,12 +550,14 @@ struct BtorWorker
int sid = get_bv_sid(GetSize(sig_y)); int sid = get_bv_sid(GetSize(sig_y));
int nid = next_nid++; int nid = next_nid++;
btorf("%d ite %d %d %d %d\n", nid, sid, nid_s, nid_b, nid_a);
if (cell->type == "$_NMUX_") { if (cell->type == "$_NMUX_") {
int tmp = nid; int tmp = nid;
nid = next_nid++; nid = next_nid++;
btorf("%d not %d %d\n", nid, sid, tmp); btorf("%d ite %d %d %d %d\n", tmp, sid, nid_s, nid_b, nid_a);
btorf("%d not %d %d %s\n", nid, sid, tmp, getinfo(cell).c_str());
} else {
btorf("%d ite %d %d %d %d %s\n", nid, sid, nid_s, nid_b, nid_a, getinfo(cell).c_str());
} }
add_nid_sig(nid, sig_y); add_nid_sig(nid, sig_y);
@ -548,6 +579,9 @@ struct BtorWorker
int nid_b = get_sig_nid(sig_b.extract(i*width, width)); int nid_b = get_sig_nid(sig_b.extract(i*width, width));
int nid_s = get_sig_nid(sig_s.extract(i)); int nid_s = get_sig_nid(sig_s.extract(i));
int nid2 = next_nid++; int nid2 = next_nid++;
if (i == GetSize(sig_s)-1)
btorf("%d ite %d %d %d %d %s\n", nid2, sid, nid_s, nid_b, nid, getinfo(cell).c_str());
else
btorf("%d ite %d %d %d %d\n", nid2, sid, nid_s, nid_b, nid); btorf("%d ite %d %d %d %d\n", nid2, sid, nid_s, nid_b, nid);
nid = nid2; nid = nid2;
} }
@ -1034,7 +1068,7 @@ struct BtorWorker
int sid = get_bv_sid(GetSize(sig)); int sid = get_bv_sid(GetSize(sig));
int nid = next_nid++; int nid = next_nid++;
btorf("%d input %d %s\n", nid, sid, log_id(wire)); btorf("%d input %d %s\n", nid, sid, getinfo(wire).c_str());
add_nid_sig(nid, sig); add_nid_sig(nid, sig);
} }
@ -1058,7 +1092,7 @@ struct BtorWorker
btorf_push(stringf("output %s", log_id(wire))); btorf_push(stringf("output %s", log_id(wire)));
int nid = get_sig_nid(wire); int nid = get_sig_nid(wire);
btorf("%d output %d %s\n", next_nid++, nid, log_id(wire)); btorf("%d output %d %s\n", next_nid++, nid, getinfo(wire).c_str());
btorf_pop(stringf("output %s", log_id(wire))); btorf_pop(stringf("output %s", log_id(wire)));
} }
@ -1099,16 +1133,11 @@ struct BtorWorker
if (single_bad && !cover_mode) { if (single_bad && !cover_mode) {
bad_properties.push_back(nid_en_and_not_a); bad_properties.push_back(nid_en_and_not_a);
} else { } else {
string infostr = log_id(cell);
if (infostr[0] == '$' && cell->attributes.count("\\src")) {
infostr = cell->attributes.at("\\src").decode_string().c_str();
std::replace(infostr.begin(), infostr.end(), ' ', '_');
}
if (cover_mode) { if (cover_mode) {
infof("bad %d %s\n", nid_en_and_not_a, infostr.c_str()); infof("bad %d %s\n", nid_en_and_not_a, getinfo(cell, true).c_str());
} else { } else {
int nid = next_nid++; int nid = next_nid++;
btorf("%d bad %d %s\n", nid, nid_en_and_not_a, infostr.c_str()); btorf("%d bad %d %s\n", nid, nid_en_and_not_a, getinfo(cell, true).c_str());
} }
} }
@ -1129,13 +1158,8 @@ struct BtorWorker
if (single_bad) { if (single_bad) {
bad_properties.push_back(nid_en_and_a); bad_properties.push_back(nid_en_and_a);
} else { } else {
string infostr = log_id(cell);
if (infostr[0] == '$' && cell->attributes.count("\\src")) {
infostr = cell->attributes.at("\\src").decode_string().c_str();
std::replace(infostr.begin(), infostr.end(), ' ', '_');
}
int nid = next_nid++; int nid = next_nid++;
btorf("%d bad %d %s\n", nid, nid_en_and_a, infostr.c_str()); btorf("%d bad %d %s\n", nid, nid_en_and_a, getinfo(cell, true).c_str());
} }
btorf_pop(log_id(cell)); btorf_pop(log_id(cell));
@ -1156,7 +1180,7 @@ struct BtorWorker
continue; continue;
int this_nid = next_nid++; int this_nid = next_nid++;
btorf("%d uext %d %d %d %s\n", this_nid, sid, nid, 0, log_id(wire)); btorf("%d uext %d %d %d %s\n", this_nid, sid, nid, 0, getinfo(wire).c_str());
btorf_pop(stringf("wire %s", log_id(wire))); btorf_pop(stringf("wire %s", log_id(wire)));
continue; continue;
@ -1227,14 +1251,14 @@ struct BtorWorker
} }
int nid2 = next_nid++; int nid2 = next_nid++;
btorf("%d next %d %d %d\n", nid2, sid, nid, nid_head); btorf("%d next %d %d %d %s\n", nid2, sid, nid, nid_head, getinfo(cell).c_str());
} }
else else
{ {
SigSpec sig = sigmap(cell->getPort("\\D")); SigSpec sig = sigmap(cell->getPort("\\D"));
int nid_q = get_sig_nid(sig); int nid_q = get_sig_nid(sig);
int sid = get_bv_sid(GetSize(sig)); int sid = get_bv_sid(GetSize(sig));
btorf("%d next %d %d %d\n", next_nid++, sid, nid, nid_q); btorf("%d next %d %d %d %s\n", next_nid++, sid, nid, nid_q, getinfo(cell).c_str());
} }
btorf_pop(stringf("next %s", log_id(cell))); btorf_pop(stringf("next %s", log_id(cell)));