llvm-project

09e57cfd - [AArch64] Extend Windows CPU feature detection with more features. (#171930)

[AArch64] Extend Windows CPU feature detection with more features. (#171930) Mostly adding feature flags from the newest SDK. (Note that in addition to the obvious, this also affects the compiler-rt SME ABI routines, which rely on FEAT_SME and FEAT_SME2.)