RFR: 8315066: Add unsigned bounds and known bits to TypeInt/Long [v57]

[Quan Anh Mai]

On Fri, 2 May 2025 09:37:33 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> test/hotspot/gtest/utilities/test_intn_t.cpp line 51:
>> 
>>> 49:   test_intn_t<7>();
>>> 50:   test_intn_t<8>();
>>> 51: }
>> 
>> And how about some tests for `uintn_t`?
>
> Those also have a lot more operations to test...

The thing is that the other operations are so trivial that it would be counter-productive to test them, it is like testing `add(int x, int y) { return x + y; }` :) The operations I test here are the non-trivial ones, that is sign extension and comparison. I have added some sanity `static_assert` to catch off-by-one errors, though.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17508#discussion_r2071486369