tlively added inline comments.

================
Comment at: llvm/include/llvm/IR/IntrinsicsWebAssembly.td:318
+  Intrinsic<[], [llvm_ptr_ty],
+            [IntrInaccessibleMemOrArgMemOnly, IntrWillReturn,
+             ReadOnly<ArgIndex<0>>, NoCapture<ArgIndex<0>>],
----------------
aheejin wrote:
> It [[ 
> https://github.com/llvm/llvm-project/blob/5abfeccf10bcbc0d673ece21ddd8d4ac4a0e7594/llvm/include/llvm/IR/Intrinsics.td#L130
>  | looks ]] `IntrWillReturn` is applied by default?
It looks like this is only true for Intrinsics that inherit 
`DefaultAttrsIntrinsic`. Otherwise the default-enabled attributes are 
confusingly disabled by default 
https://github.com/llvm/llvm-project/blob/5abfeccf10bcbc0d673ece21ddd8d4ac4a0e7594/llvm/include/llvm/IR/Intrinsics.td#L346.
 As a separate change it would be a good idea to change most of our target 
intrinsics to use `DefaultAttrsIntrinsics`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D93883/new/

https://reviews.llvm.org/D93883

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