================
@@ -179,22 +179,39 @@ StringRef sys::detail::getHostCPUNameForARM(StringRef 
ProcCpuinfoContent) {
   // Look for the CPU implementer line.
   StringRef Implementer;
   StringRef Hardware;
-  StringRef Part;
+  SmallVector<StringRef, 32> Parts;
   for (unsigned I = 0, E = Lines.size(); I != E; ++I) {
     if (Lines[I].starts_with("CPU implementer"))
       Implementer = Lines[I].substr(15).ltrim("\t :");
     if (Lines[I].starts_with("Hardware"))
       Hardware = Lines[I].substr(8).ltrim("\t :");
     if (Lines[I].starts_with("CPU part"))
-      Part = Lines[I].substr(8).ltrim("\t :");
+      Parts.emplace_back(Lines[I].substr(8).ltrim("\t :"));
   }
 
+  // Last `Part' seen, in case we don't analyse all `Parts' parsed.
+  StringRef Part = Parts.empty() ? StringRef() : Parts.back();
+
+  // Remove duplicate `Parts'.
----------------
sjoerdmeijer wrote:

I don't think I mind this, but is this necessary? How can we end up with 
duplicates?

https://github.com/llvm/llvm-project/pull/146515
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