[llvm] [TLI] Use AArch64 vector calling convention for ArmPL routines (PR #135790)

[Graham Hunter via llvm-commits]

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@@ -45,20 +45,29 @@ class VecDesc {
   ElementCount VectorizationFactor;
   bool Masked;
   StringRef VABIPrefix;
+  std::optional<CallingConv::ID> CC;
 
 public:
   VecDesc() = delete;
   VecDesc(StringRef ScalarFnName, StringRef VectorFnName,
           ElementCount VectorizationFactor, bool Masked, StringRef VABIPrefix)
       : ScalarFnName(ScalarFnName), VectorFnName(VectorFnName),
         VectorizationFactor(VectorizationFactor), Masked(Masked),
-        VABIPrefix(VABIPrefix) {}
+        VABIPrefix(VABIPrefix), CC(std::nullopt) {}
+
+  VecDesc(StringRef ScalarFnName, StringRef VectorFnName,
+          ElementCount VectorizationFactor, bool Masked, StringRef VABIPrefix,
+          CallingConv::ID Conv)
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huntergr-arm wrote:

Does using a default argument in the existing constructor not work?

https://github.com/llvm/llvm-project/pull/135790