cd10ded697
When compiling with `-march=armv9-a+nosve` we found that Clang still defines the `__ARM_FEATURE_SVE2` macro, which is explicitly set in `setArchFeatures` when compiling for armv9-a. After some experimenting, I found out that the list of features passed into `AArch64TargetInfo::handleTargetFeatures` has already been expanded and takes into account `+no[feature]` and has already expanded features like `armv9-a`. From that I conclude that `setArchFeatures` is no longer required.
The LLVM Compiler Infrastructure
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