Fix ISA detection on ARM64 Windows

pytorch / cpuinfo

CPU INFOrmation library (x86/x86-64/ARM/ARM64, Linux/Windows/Android/macOS/iOS)

BSD 2-Clause "Simplified" License

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Closed Maratyszcza closed 1 year ago

Maratyszcza commented 1 year ago

Current code for detecting ISA features on ARM64 Windows is completely broken. Re-implemented following XNNPack.