J. Gareth Moreton via fpc-devel wrote:
I just stumbled across this article about micro-architecture-specific
optimisations in ARM:
https://www.phoronix.com/news/ARM64-Linux-No-Uarch-Opts
They briefly mention x86_64, and I agree it's good to avoid
micro-architecture-specific optimisations and now it makes me wonder
where the line is drawn, like the recent introduction of the optimizer
hint regarding LEA instructions being slow on some middle-aged CPUs.
I agree that kind of optimization shouldn't be in a kernel. Whether it should be in a compiler is
another question.
Regards,
Adriaan van Os
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