bool run()
{
ASSERT(m_graph.m_form != SSA);
BlockSet blocksThatNeedInvalidationPoints;
for (BlockIndex blockIndex = m_graph.numBlocks(); blockIndex--;) {
BasicBlock* block = m_graph.block(blockIndex);
if (!block)
continue;
for (unsigned nodeIndex = 0; nodeIndex < block->size(); ++nodeIndex)
handle(nodeIndex, block->at(nodeIndex));
// Note: this assumes that control flow occurs at bytecode instruction boundaries.
if (m_originThatHadFire.isSet()) {
for (unsigned i = block->numSuccessors(); i--;)
blocksThatNeedInvalidationPoints.add(block->successor(i));
}
m_insertionSet.execute(block);
}
for (BlockIndex blockIndex = m_graph.numBlocks(); blockIndex--;) {
BasicBlock* block = m_graph.block(blockIndex);
if (!blocksThatNeedInvalidationPoints.contains(block))
continue;
insertInvalidationCheck(0, block->at(0));
m_insertionSet.execute(block);
}
return true;
}
TextAutosizer::Supercluster* TextAutosizer::getSupercluster(const LayoutBlock* block)
{
Fingerprint fingerprint = m_fingerprintMapper.get(block);
if (!fingerprint)
return nullptr;
BlockSet* roots = m_fingerprintMapper.getTentativeClusterRoots(fingerprint);
if (!roots || roots->size() < 2 || !roots->contains(block))
return nullptr;
SuperclusterMap::AddResult addResult = m_superclusters.add(fingerprint, PassOwnPtr<Supercluster>());
if (!addResult.isNewEntry)
return addResult.storedValue->value.get();
Supercluster* supercluster = new Supercluster(roots);
addResult.storedValue->value = adoptPtr(supercluster);
return supercluster;
}