swift

156fa2cc - RequirementMachine: Speed up term simplification with a prefix trie

RequirementMachine: Speed up term simplification with a prefix trie Previously RewriteSystem::simplify() would attempt to apply every rewrite rule at every position in the original term, which was obviously a source of overhead. The trie itself is somewhat unoptimized; for example, with a bit of effort it could merge a node with its only child, if nodes stored a range of elements to compare rather than a single element.