RFR: 8360192: C2: Make the type of count leading/trailing zero nodes more precise [v9]

[Qizheng Xing]

On Mon, 18 Aug 2025 14:12:19 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Qizheng Xing has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Add microbench
>>  - Add missing test method declarations
>
> test/hotspot/jtreg/compiler/c2/gvn/TestCountBitsRange.java line 34:
> 
>> 32:  * @summary Tests that count bits nodes are handled correctly.
>> 33:  * @library /test/lib /
>> 34:  * @requires vm.compiler2.enabled
> 
> Is this restriction necessary? IR rules are only run if we have C2 available in debug anyway. Other modes could still profit from correctness checks.

Removed.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25928#discussion_r2283827354