[flang-commits] [flang] [flang] Fetch the initial reduction value from the input array. (PR #136790)

[Peter Klausler via flang-commits]

klausler wrote:

`Extensions.md` documents our treatment of NaN values with these transformational intrinsics:

```
For real `MAXVAL`, `MINVAL`, `MAXLOC`, and `MINLOC`, NaN values are essentially ignored unless there are some unmasked array entries and *all* of them are NaNs.
```



https://github.com/llvm/llvm-project/pull/136790