[llvm] [LLVM][Tablegen] Add Default arguments support for Intrinsics in TableGen (PR #198557)

[Varad Rahul Kamthe via llvm-commits]

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@@ -130,9 +130,24 @@ class Returned<ArgIndex idx> : IntrinsicProperty {
   int ArgNo = idx.Value;
 }
 
-// ImmArg - The specified argument must be an immediate.
-class ImmArg<ArgIndex idx> : IntrinsicProperty {
+// DefaultVal - A value carrier paired with ImmArg to declare a default for
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varadk27 wrote:

Renamed to DefaultValue in latest revision. Thanks!

https://github.com/llvm/llvm-project/pull/198557