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

[Paul Walker via llvm-commits]

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@@ -55,6 +55,9 @@ static void addVariantDeclaration(CallInst &CI, const ElementCount &VF,
   Function *VecFunc =
       Function::Create(VectorFTy, Function::ExternalLinkage, VFName, M);
   VecFunc->copyAttributesFrom(CI.getCalledFunction());
+  if (auto CC = VD->getCallingConv()) {
+    VecFunc->setCallingConv(*CC);
+  }
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paulwalker-arm wrote:

No need for `{}` here.

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