[flang-commits] [clang] [flang] [flang][Driver] Add option for real sum reassociation (PR #207377)

[Tarun Prabhu via flang-commits]

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tarunprabhu wrote:

The `DEFAULT`, `DISABLE`, and `DISABLE-LAST` prefixes are all checking for identical conditions. It may be better to have a single prefix for these, perhaps called `DISABLED`. The same could be done for `ENABLE` and `ENABLE-LAST` that are identical. 

You could also consider using `-SAME` instead of a wildcard match. For instance

```fortran
ENABLE: "-fc1"
ENABLE-SAME: "-freal-sum-association"
```

IMO, this makes it clearer about what each test expects, and suggests which are testing for equivalent behavior.

https://github.com/llvm/llvm-project/pull/207377