[clang] [CIR] Upstream initial support for unary op (PR #131369)

[Erich Keane via cfe-commits]

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@@ -468,6 +468,55 @@ def BrOp : CIR_Op<"br",
   }];
 }
 
+//===----------------------------------------------------------------------===//
+// UnaryOp
+//===----------------------------------------------------------------------===//
+
+def UnaryOpKind_Inc   : I32EnumAttrCase<"Inc",   1, "inc">;
+def UnaryOpKind_Dec   : I32EnumAttrCase<"Dec",   2, "dec">;
+def UnaryOpKind_Plus  : I32EnumAttrCase<"Plus",  3, "plus">;
+def UnaryOpKind_Minus : I32EnumAttrCase<"Minus", 4, "minus">;
+def UnaryOpKind_Not   : I32EnumAttrCase<"Not",   5, "not">;
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erichkeane wrote:

Presumably address-of and dereference don't need to be here as we express them differently, correct?   What about the logical-not and complex operations though?  Technically `co_await` is an operator too, so would that need to be modeled here?

https://github.com/llvm/llvm-project/pull/131369