}

// round to a multiple of r, r is a power of 2.
func round(o int64, r int64) int64 {
	return (o + r - 1) &^ (r - 1)
}

// IsStackAddr reports whether v is known to be an address of a stack slot.
func IsStackAddr(v *Value) bool {
	for v.Op == OpOffPtr || v.Op == OpAddPtr || v.Op == OpPtrIndex || v.Op == OpCopy {
		v = v.Args[0]
	}
	switch v.Op {

// do *left = right for type t.
func (s *state) storeType(t *types.Type, left, right *ssa.Value, skip skipMask, leftIsStmt bool) {
	s.instrument(t, left, instrumentWrite)

	if skip == 0 && (!t.HasPointers() || ssa.IsStackAddr(left)) {
		// Known to not have write barrier. Store the whole type.
		s.vars[memVar] = s.newValue3Apos(ssa.OpStore, types.TypeMem, t, left, right, s.mem(), leftIsStmt)
		return
	}