RFR: 8360192: C2: Make the type of count leading/trailing zero nodes more precise [v3]

[Qizheng Xing]

On Mon, 23 Jun 2025 10:40:59 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Qizheng Xing has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Narrow type bound
>
> test/hotspot/jtreg/compiler/c2/irTests/TestCountBitsRange.java line 2:
> 
>> 1: /*
>> 2:  * Copyright (c) 2025 Alibaba Group Holding Limited. All Rights Reserved.
> 
> Can you please not use the `irTests` directory, and instead put it in a more thematically relevant one? Maybe `gvn`?

Okay, moved this test to `compiler.c2.gvn`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25928#discussion_r2163446317