so such references are no longer at risk of using a variable
  after it has been updated by the loop.
</p>

<h4 id="vet-appends">New warnings for missing values after append</h4>

<p><!-- CL 498416, https://go.dev/issue/60448: add a new analyzer for check missing values after append -->
  The <code>vet</code> tool now reports calls to
  <a href="/pkg/builtin/#append"><code>append</code></a> that pass

<p>
The assemblers are designed to support the compiler so not all hardware instructions
are defined for all architectures: if the compiler doesn't generate it, it might not be there.
If you need to use a missing instruction, there are two ways to proceed.
One is to update the assembler to support that instruction, which is straightforward
but only worthwhile if it's likely the instruction will be used again.