jroelofs 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?
https://github.com/llvm/llvm-project/pull/118544
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