[clang] [llvm] [TargetParser][AArch64] Add alias for FEAT_RDM. (PR #80540)

[Jon Roelofs via cfe-commits]

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@@ -673,7 +673,7 @@ int hoo(void) {
 //
 //
 // CHECK: Function Attrs: noinline nounwind optnone
-// CHECK-LABEL: define {{[^@]+}}@fmv_inline._MlseMrdm
+// CHECK-LABEL: define {{[^@]+}}@fmv_inline._MlseMrdma
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jroelofs wrote:

It seems potentially problematic that this leaks into the mangling. Maybe these ought to be canonicalized in `AppendTargetVersionMangling` and `AppendTargetClonesMangling` with a `resolveExtAlias` call.

https://github.com/llvm/llvm-project/pull/80540