On Wed, 28 Jan 2026 13:07:54 GMT, Quan Anh Mai <[email protected]> wrote:

>> src/hotspot/share/opto/inlinetypenode.hpp line 71:
>> 
>>> 69: 
>>> 70:   // Initialize the inline type fields with the inputs or outputs of a 
>>> MultiNode
>>> 71:   void initialize_fields(GraphKit* kit, MultiNode* multi, uint& 
>>> base_input, bool in, bool no_null_marker, Node* null_check_region, 
>>> GrowableArray<ciType*>& visited);
>> 
>> Any particular reason that you renamed this? If so, the corresponding 
>> argument of  `InlineTypeNode::make_from_multi` should be renamed as well. 
>> Could we use something like `has_null_marker` instead to avoid the double 
>> negation (`!no_null_marker`)?
>
> The reason I decided to rename it is because it is kind of misleading, 
> `null_free` only means the immediate field is null-free, the object can still 
> be `null`. I am working on a patch to try cleaning up other places, too. 
> `InlineTypeNode::make_from_multi` is correct in its parameter name 
> `null_free`, because it is at the top level. Since all other similar 
> variables in this file is in one direction, I think keeping it consistent 
> would help reduce confusion.

That makes sense, thanks for the details!

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PR Review Comment: 
https://git.openjdk.org/valhalla/pull/1970#discussion_r2736647307

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