[llvm] [PowerPC] Support local-dynamic TLS relocation on AIX (PR #66316)

[Kai Luo via llvm-commits]

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@@ -370,11 +370,23 @@ namespace llvm {
     /// G8RC = TLSGD_AIX, TOC_ENTRY, TOC_ENTRY
     /// Op that combines two register copies of TOC entries
     /// (region handle into R3 and variable offset into R4) followed by a
-    /// GET_TLS_ADDR node which will be expanded to a call to __get_tls_addr.
+    /// GET_TLS_ADDR node which will be expanded to a call to __tls_get_addr.
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bzEq wrote:

```suggestion
    /// GET_TLS_ADDR node which will be expanded to a call to .__tls_get_addr.
```

https://github.com/llvm/llvm-project/pull/66316