labrinea wrote:
> > Suppose you have target_version("i8mm+dotprod") and target_version("fcma").
> > The first version clearly has higher priority
>
> According to the [current
> rules](https://arm-software.github.io/acle/main/acle.html#selection) yes, but
> IMO that rule is broken and doesn't match user expectation. A motivating
> example might be `target_version("simd+dotprod")` and
> `target_version("sve")`: when sve is available we _should_ pick that version,
> but the current rule prioritizes the _number_ of attribute-specified features
> over their overall weight.
>
> I think if we fix that rule, and instead sort priorities lexicographically
> after adding implicit features implied by command-line options, then this
> change becomes unnecessary. Mind starting a thread with the gcc folks to sort
> this out?
@andrewcarlotti is planning a PR in ACLE to fix the priorities. I will tag you
there when this happens.
https://github.com/llvm/llvm-project/pull/118544
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