[Mlir-commits] [mlir] [mlir][SPIR-V] Deserialize null array and struct constants (PR #231626)

[Arseniy Obolenskiy]

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@@ -2142,6 +2154,50 @@ Value spirv::Deserializer::materializeSpecConstantOperation(
   return specConstOperationOp.getResult();
 }
 
+/// Returns the attribute `spirv.Constant` uses for the null value of `type`, or
+/// a null attribute if there is none, in which case `unsupportedType` is set to
+/// `type` or to the nested type that has no null constant representation.
+///
+/// Null arrays and literal structs are array attributes holding the null value
+/// of every element or member, which is what an OpConstantComposite of null
+/// constituents is deserialized into.
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aobolensk wrote:

Can we reduce comments verbosity here and in other places? 

https://github.com/llvm/llvm-project/pull/231626