[clang] [llvm] [LLVM][MC][AArch64] Assembler support for Armv9.6-A memory systems extensions (PR #112341)

[Nashe Mncube via cfe-commits]

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@@ -988,6 +988,22 @@ bool AArch64InstPrinter::printSysAlias(const MCInst *MI,
       Name = std::string(AT->Name);
     }
     break;
+    // Overlaps with AT and DC
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nasherm wrote:

The newly added DC instructions map to the same case (15) as the AT instructions as they have overlapping encodings 

https://github.com/llvm/llvm-project/pull/112341