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gen candidate by bitwidth #1

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41 changes: 34 additions & 7 deletions include/deep/CandChecker.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -127,18 +127,41 @@ namespace ufo

ExprSet cands;

// get inv vars
ExprVector bvVars;
// collect vars/constants by width
std::map<unsigned, ExprVector> bvVarsByWidth;
std::map<unsigned, ExprVector> bvConstantsByWidth;


for (auto & a: tr->srcVars)
{
if (bv::is_bvconst(a)) bvVars.push_back(a);
else if (bind::isBoolConst(a)) cands.insert(a);
if (bv::is_bvconst(a))
{
bvVarsByWidth[bv::width(a)].push_back(a);
}
else if (bind::isBoolConst(a)) {
bvConstantsByWidth[bv::width(a)].push_back(a);
}
}
// test commit
for (int i = 0; i < bvVars.size(); i++)
for (int j = i + 1; j < bvVars.size(); j++)
cands.insert(mk<EQ>(bvVars[i], bvVars[j]));
for (auto & width_vars_pair : bvVarsByWidth) {
// EQ between vars of the same width : bv == bv
unsigned width = width_vars_pair.first;
auto & bvVars = width_vars_pair.second;
for (int i = 0; i < bvVars.size(); i++)
for (int j = i + 1; j < bvVars.size(); j++)
cands.insert(mk<EQ>(bvVars[i], bvVars[j]));

if (bvConstantsByWidth.find(width) != bvConstantsByWidth.end()) {
auto & bvCnsts = bvConstantsByWidth[width];
// if there are also constants
// why not try v == constant
for (int i = 0; i < bvVars.size(); i++)
for (int j = i + 1; j < bvCnsts.size(); j++)
cands.insert(mk<EQ>(bvVars[i], bvCnsts[j]));
}
}

// check for simple candidates, if done we are good
for (auto & cand : cands)
{
if (cc.checkInitiation(cand) &&
Expand All @@ -149,6 +172,10 @@ namespace ufo
return;
}
}

// what's the format to make a constant?


}
}

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