[llvm] [LLVM-Tablegen] Pretty Printing Arguments in LLVM Intrinsics (PR #162629)

[Rahul Joshi via llvm-commits]

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@@ -142,6 +142,25 @@ class Range<AttrIndex idx, int lower, int upper> : IntrinsicProperty {
   int Upper = upper;
 }
 
+// ArgProperty - Base class for argument properties that can be specified in ArgInfo.
+class ArgProperty;
+
+// ArgName - Specifies the name of an argument for pretty-printing.
+class ArgName<string name> : ArgProperty {
+  string Name = name;
+}
+
+// ImmArgPrinter - Specifies a custom printer function for immediate arguments.
+class ImmArgPrinter<string funcname> : ArgProperty {
+  string FuncName = funcname;
+}
+
+// ArgInfo - The specified argument has properties defined by a list of ArgProperty objects.
+class ArgInfo<AttrIndex idx, list<ArgProperty> arg_properties> : IntrinsicProperty {
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jurahul wrote:

nit: This should be ArgIndex as opposed to AttrIndex, since we expect it to be used only for arguments and not return values. 

https://github.com/llvm/llvm-project/pull/162629