<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/108695>108695</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            fdim(x, y) is not folded at the compilation time when (x, y) is constant
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          k-arrows
      </td>
    </tr>
</table>

<pre>
    Consider the following example.
https://godbolt.org/z/15Ef6W1Es
```c
#include <cmath>

double f1() { return std::fdim(-1.0, 0.0); }

double f2() { return std::fdim(0.0, 0.0); }

double f3() { return std::fdim(1.0, 0.0); }
```
</pre>
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