[llvm] [PAC][CodeGen][ELF][AArch64] Support signed TLSDESC (PR #113813)

[Anatoly Trosinenko via llvm-commits]

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@@ -501,6 +501,8 @@ def SDT_AArch64stnp : SDTypeProfile<0, 3, [SDTCisVT<0, v4i32>, SDTCisSameAs<0, 1
 // number of operands (the variable)
 def SDT_AArch64TLSDescCallSeq : SDTypeProfile<0,1,
                                           [SDTCisPtrTy<0>]>;
+def SDT_AArch64TLSDescAuthCallSeq : SDTypeProfile<0,1,
+                                          [SDTCisPtrTy<0>]>;
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atrosinenko wrote:

I wonder if we really need two separate definitions with identical "right hand sides" (though, I'm not an expert in DAGISel).

https://github.com/llvm/llvm-project/pull/113813