<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/100502>100502</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [libc++][test] Bogus loops in time.cal.ymdlast.nonmembers/comparisons.pass.cpp
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            libc++
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          StephanTLavavej
      </td>
    </tr>
</table>

<pre>
    Recently introduced by @mordante's #98169.

MSVC's `/analyze` complains:

```
D:\GitHub\STL\llvm-project\libcxx\test\std\time\time.cal\time.cal.ymdlast\time.cal.ymdlast.nonmembers\comparisons.pass.cpp(62) : warning C6294: Ill-defined for-loop.  Loop body not executed.
D:\GitHub\STL\llvm-project\libcxx\test\std\time\time.cal\time.cal.ymdlast\time.cal.ymdlast.nonmembers\comparisons.pass.cpp(63) : warning C6294: Ill-defined for-loop.  Loop body not executed.
```

This warning is *usually* a nuisance (complaining about loops that intentionally perform no iterations; calling them "ill-defined" isn't great either), but in this case it found actually-squirrely code :chipmunk: :

https://github.com/llvm/llvm-project/blob/7e7a9069d4240d2ae619cb50eba09f948c537ce3/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/comparisons.pass.cpp#L61-L68

I'm not sure what this code was intended to be doing. It appears that "same month, different years" previously looped from 1000 to 2000. Perhaps 1000 * 1000 = 1 million nested iterations was excessive, and the code should be looping from (say) 1000 to 1020?
</pre>
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