//
// For "if" test nodes. There are three children; a condition,
// a true path, and a false path. The two paths are in the
// nodePair.
//
// Returns the selection node created.
//
TIntermNode *TIntermediate::addSelection(
TIntermTyped *cond, TIntermNodePair nodePair, const TSourceLoc &line)
{
//
// For compile time constant selections, prune the code and
// test now.
//
if (cond->getAsTyped() && cond->getAsTyped()->getAsConstantUnion())
{
if (cond->getAsConstantUnion()->getBConst(0) == true)
{
return nodePair.node1 ? setAggregateOperator(
nodePair.node1, EOpSequence, nodePair.node1->getLine()) : NULL;
}
else
{
return nodePair.node2 ? setAggregateOperator(
nodePair.node2, EOpSequence, nodePair.node2->getLine()) : NULL;
}
}
TIntermSelection *node = new TIntermSelection(
cond, nodePair.node1, nodePair.node2);
node->setLine(line);
return node;
}
// For "if" test nodes. There are three children; a condition,
// a true path, and a false path. The two paths are in the
// nodePair.
//
// Returns the node created.
TIntermNode *TIntermediate::addIfElse(TIntermTyped *cond,
TIntermNodePair nodePair,
const TSourceLoc &line)
{
// For compile time constant conditions, prune the code now.
if (cond->getAsConstantUnion())
{
if (cond->getAsConstantUnion()->getBConst(0) == true)
{
return nodePair.node1 ? setAggregateOperator(nodePair.node1, EOpSequence,
nodePair.node1->getLine())
: nullptr;
}
else
{
return nodePair.node2 ? setAggregateOperator(nodePair.node2, EOpSequence,
nodePair.node2->getLine())
: nullptr;
}
}
TIntermIfElse *node =
new TIntermIfElse(cond, ensureSequence(nodePair.node1), ensureSequence(nodePair.node2));
node->setLine(line);
return node;
}