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Re: [PATCH] hppa: Optimize atomic_compare_and_exchange_val_acq
* John David Anglin:
>>> The change was intended as an optimization but tst-stack4 now passes.
>> This is a red flag for this patch.
> The patch has had a significant amount of testing and I'm sure there
> are no functional issues. It is important to simplify
> when possible.
> Why red flag an improvement in test results?
I share Carlos' concern. If this patch appears to fix tst-stack4,
then it has unforeseen consequences. We just don't understand the
full impact of this change.