[llvm] [FMV][GlobalOpt] Statically resolve calls to versioned functions. (PR #87939)

[Alexandros Lamprineas via llvm-commits]

labrinea wrote:

Reading more on https://www.kernel.org/doc/html/latest/arch/arm64/cpu-feature-registers.html my understanding is that some feature bits from ID_AA64ISAR1_EL1 may be visible, but specres doesn't seem to be one of them. Also my naive interpretation of https://github.com/torvalds/linux/blob/master/arch/arm64/kernel/cpufeature.c#L236 is that SPECRES is hidden.

https://github.com/llvm/llvm-project/pull/87939