[llvm] [AMDGPU] Add custom lowering of llvm.convert.to.arbitrary.fp for FP8 (PR #213813)

[Chinmay Deshpande via llvm-commits]

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@@ -1279,11 +1285,16 @@ class ImmLeaf<ValueType vt, code pred, SDNodeXForm xform = NOOP_SDNodeXForm,
 class TImmLeaf<ValueType vt, code pred, SDNodeXForm xform = NOOP_SDNodeXForm,
   SDNode ImmNode = timm> : ImmLeaf<vt, pred, xform, ImmNode>;
 
-// llvm.convert.from.arbitrary.fp format-selector predicates.
+// llvm.convert.{from,to}.arbitrary.fp format-selector predicates.
 // Only OCP formats are matched here; FNUZ formats use the generic expansion.
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chinmaydd wrote:

Is the FNUZ comment here still valid after introducing `llvm.convert.to.arbitrary.fp` lowering ?

https://github.com/llvm/llvm-project/pull/213813