[clang] [llvm] Add processor aliases back to -print-supported-cpus and -mcpu=help (PR #118581)

[Florian Hahn via llvm-commits]

================
@@ -104,14 +110,17 @@ static void Help(ArrayRef<SubtargetSubTypeKV> CPUTable,
   }
 
   // Determine the length of the longest CPU and Feature entries.
-  unsigned MaxCPULen  = getLongestEntryLength(CPUTable);
+  unsigned MaxCPULen = getLongestEntryLength(CPUNames);
   unsigned MaxFeatLen = getLongestEntryLength(FeatTable);
 
   // Print the CPU table.
   errs() << "Available CPUs for this target:\n\n";
-  for (auto &CPU : CPUTable)
-    errs() << format("  %-*s - Select the %s processor.\n", MaxCPULen, CPU.Key,
-                     CPU.Key);
+  for (auto &CPUName : CPUNames) {
+    if (CPUName == "apple-latest")
+      continue;
----------------
fhahn wrote:

Could you add a comment here why this is skipped? 

https://github.com/llvm/llvm-project/pull/118581