go/src/cmd/compile/internal/liveness/bvset.go

const h0 …

const hp …

type bvecSet …

func (m *bvecSet) grow() { … }

// add adds bv to the set and returns its index in m.extractUnique,
// and whether it is newly added.
// If it is newly added, the caller must not modify bv after this.
func (m *bvecSet) add(bv bitvec.BitVec) (int, bool) { … }

// extractUnique returns this slice of unique bit vectors in m, as
// indexed by the result of bvecSet.add.
func (m *bvecSet) extractUnique() []bitvec.BitVec { … }

func hashbitmap(h uint32, bv bitvec.BitVec) uint32 { … }