[clang] [llvm] [AArch64] Decouple feature dependency expansion. (PR #94279)

[Tomas Matheson via llvm-commits]

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@@ -13663,17 +13664,18 @@ QualType ASTContext::getCorrespondingSignedFixedPointType(QualType Ty) const {
   }
 }
 
-std::vector<std::string> ASTContext::filterFunctionTargetVersionAttrs(
-    const TargetVersionAttr *TV) const {
-  assert(TV != nullptr);
-  llvm::SmallVector<StringRef, 8> Feats;
-  std::vector<std::string> ResFeats;
-  TV->getFeatures(Feats);
-  for (auto &Feature : Feats)
-    if (Target->validateCpuSupports(Feature.str()))
-      // Use '?' to mark features that came from TargetVersion.
-      ResFeats.push_back("?" + Feature.str());
-  return ResFeats;
+// Given a list of FMV features, add each of their backend features to the list.
+static void
+getFMVBackendFeaturesFor(const llvm::SmallVectorImpl<StringRef> &FMVFeatStrings,
+                         std::vector<std::string> &BackendFeats) {
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tmatheson-arm wrote:

You could just return the `BackendFeats`

https://github.com/llvm/llvm-project/pull/94279