public function process(Vertex $vertex, Digraph $graph)
{
if ($vertex->getName() === 'Assign') {
if ($vertex->getResult()->getType()->isUnknown() && !$vertex->getValue()->getType()->isUnknown()) {
$vertex->getResult()->setType($vertex->getValue()->getType());
return true;
}
}
return false;
}
public function process(Vertex $vertex, Digraph $graph)
{
if ($vertex->getName() === 'BooleanNot') {
if ($vertex->getResult()->getType()->isUnknown() && !$vertex->getValue()->getType()->isUnknown()) {
$vertex->getResult()->setType(new Type(Type::TYPE_BOOLEAN));
return true;
}
}
return false;
}
public function process(Vertex $vertex, Digraph $graph)
{
if ($vertex instanceof Vertex\FunctionCall) {
if ($vertex->getResult()->getType()->isUnknown() && !$vertex->getSignature()->getReturn()->isUnknown()) {
$vertex->getResult()->setType($vertex->getSignature()->getReturn());
return true;
}
}
return false;
}
public function process(Vertex $vertex, Digraph $graph)
{
if ($vertex->getName() === 'BitwiseNot') {
if ($vertex->getResult()->getType()->isUnknown() && !$vertex->getValue()->getType()->isUnknown()) {
if ($vertex->getValue()->getType()->getType() === Type::TYPE_STRING) {
$vertex->getResult()->setType(new Type(Type::TYPE_STRING));
} else {
$vertex->getResult()->setType(new Type(Type::TYPE_LONG));
}
return true;
}
}
return false;
}
public function process(Vertex $vertex, Digraph $graph)
{
if ($vertex instanceof Vertex\Phi) {
$types = [];
foreach ($vertex->getValues() as $value) {
$types[] = (string) $value->getType();
}
$types = array_unique($types);
if ($vertex->getResult()->getType()->isUnknown()) {
$type = null;
$setAll = false;
if (count($types) === 1 && $types[0] !== 'unknown') {
$type = Type::normalizeType($types[0]);
} elseif (count($types) === 2 && in_array('long', $types) && in_array('numeric', $types)) {
$type = new Type(Type::TYPE_LONG);
$setAll = true;
} elseif (count($types) === 2 && in_array('double', $types) && in_array('numeric', $types)) {
$type = new Type(Type::TYPE_DOUBLE);
$setAll = true;
} elseif (count($types) === 2 && in_array('bool', $types) && in_array('numeric', $types)) {
$type = new Type(Type::TYPE_BOOLEAN);
}
if ($type) {
$vertex->getResult()->setType($type);
if ($setAll) {
foreach ($vertex->getValues() as $value) {
$value->setType($type);
}
}
return true;
}
}
if (count($vertex->getValues()) === 1) {
// remove phi node
list($val) = iterator_to_array($vertex->getValues());
$result = $vertex->getResult();
foreach ($graph->vertices() as $vtx) {
$vtx->replaceVariable($result, $val);
if ($vtx instanceof Assignment && $vtx->getResult() === $result) {
$vtx->setResult($val);
}
}
Helper::remove($vertex, $graph);
return true;
}
}
return false;
}
public function process(Vertex $vertex, Digraph $graph)
{
if ($vertex instanceof Assignment && $vertex->isIdempotent() && 1 >= $this->countUsages($vertex->getResult(), $graph)) {
Helper::remove($vertex, $graph);
return true;
}
return false;
}
public function process(Vertex $vertex, Digraph $graph)
{
if ($vertex->getName() !== 'BinaryOp') {
return false;
}
$result = $vertex->getResult();
$rType = $result->getType();
if ($rType->isUnknown() || $rType->getType() === Type::TYPE_NUMERIC) {
$typePair = [$vertex->getA()->getType()->getType(), $vertex->getB()->getType()->getType()];
$newType = Type::TYPE_UNKNOWN;
switch ($vertex->getKind()) {
case JitBinaryOp::PLUS:
case JitBinaryOp::MINUS:
case JitBinaryOp::MUL:
switch ($typePair) {
case [Type::TYPE_LONG, Type::TYPE_LONG]:
$newType = Type::TYPE_NUMERIC;
break;
case [Type::TYPE_DOUBLE, Type::TYPE_LONG]:
case [Type::TYPE_LONG, Type::TYPE_DOUBLE]:
case [Type::TYPE_DOUBLE, Type::TYPE_NUMERIC]:
case [Type::TYPE_NUMERIC, Type::TYPE_DOUBLE]:
case [Type::TYPE_DOUBLE, Type::TYPE_DOUBLE]:
$newType = Type::TYPE_DOUBLE;
break;
case [Type::TYPE_NUMERIC, Type::TYPE_NUMERIC]:
case [Type::TYPE_NUMERIC, Type::TYPE_LONG]:
case [Type::TYPE_LONG, Type::TYPE_NUMERIC]:
$newType = Type::TYPE_NUMERIC;
break;
default:
if (in_array(Type::TYPE_DOUBLE, $typePair)) {
$newType = Type::TYPE_DOUBLE;
} else {
$newType = Type::TYPE_NUMERIC;
}
}
break;
case JitBinaryOp::DIV:
$newType = Type::TYPE_DOUBLE;
break;
case JitBinaryOp::EQUAL:
case JitBinaryOp::NOT_EQUAL:
case JitBinaryOp::IDENTICAL:
case JitBinaryOp::NOT_IDENTICAL:
case JitBinaryOp::GREATER:
case JitBinaryOp::GREATER_EQUAL:
case JitBinaryOp::SMALLER:
case JitBinaryOp::SMALLER_EQUAL:
$newType = Type::TYPE_BOOLEAN;
break;
case JitBinaryOp::BITWISE_AND:
case JitBinaryOp::BITWISE_OR:
case JitBinaryOp::BITWISE_XOR:
if ($typePair === [Type::TYPE_STRING, Type::TYPE_STRING]) {
$newType = Type::TYPE_STRING;
break;
}
// Fallthrough intentional
// Fallthrough intentional
case JitBinaryOp::SHIFT_LEFT:
case JitBinaryOp::SHIFT_RIGHT:
$newType = Type::TYPE_LONG;
break;
}
if ($newType !== Type::TYPE_UNKNOWN && $newType !== $rType->getType()) {
$result->setType(new Type($newType));
return true;
}
}
return false;
}
