RFR: 8324833: Signed integer overflows in ABS

[Andrew Haley]

On Mon, 29 Jan 2024 15:59:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> See the details in the bug. I think current `ABS` implementation is beyond repair, and we should just switch to `uabs`.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug, `all` with `-ftrapv` (now fully passes!)
>  - [ ] Linux x86_64 fastdebug, `all`

Looks good. All of these are improvements, I think.

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Marked as reviewed by aph (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/17617#pullrequestreview-1853528192