// Update related page sweeper stats.
		h.pagesInUse.Add(npages)
	}

	// Make sure the newly allocated span will be observed
	// by the GC before pointers into the span are published.
	publicationBarrier()
}

// Try to add at least npage pages of memory to the heap,
// returning how much the heap grew by and whether it worked.
//
// h.lock must be held.

		func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {
			return s.newValue1(ssa.OpGetCallerSP, s.f.Config.Types.Uintptr, s.mem())
		},
		all...)

	addF("runtime", "publicationBarrier",
		func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {
			s.vars[memVar] = s.newValue1(ssa.OpPubBarrier, types.TypeMem, s.mem())
			return nil
		},
		sys.ARM64, sys.PPC64, sys.RISCV64)