[clang] [llvm] [AArch64][FMV] Add missing feature dependencies and detect at runtime. (PR #119231)

[Sander de Smalen via llvm-commits]

================
@@ -349,6 +349,14 @@ void AArch64::ExtensionSet::reconstructFromParsedFeatures(
   }
 }
 
+uint64_t AArch64::ExtensionSet::toCpuSupportsMask() const {
+  uint64_t FeaturesMask = 0;
+  for (const auto &I : getFMVInfo())
----------------
sdesmalen-arm wrote:

nit: This shouldn't be using `auto` for same reason as mentioned above.

https://github.com/llvm/llvm-project/pull/119231