RFR: 8314258: checked_cast doesn't properly check some cases

[Afshin Zafari]

On Thu, 5 Feb 2026 00:03:20 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this addition of the `integer_cast` utility.
> 
> Details in first comment, to avoid email spamming from automatic messages.
> 
> Testing: mach5 tier1-5 with `checked_cast` for integral types changed to call
> the new `integer_cast`.  Addition of `integer_cast` includes gtests.

> is correct. That _positive_ value cannot be represented in an int32_t.
> How is that behavior not clear from the description?

Using explicit cast as in the lines at the bottom of the test makes the conversion possible. How the `(int32_t)0xFFFFFFFF` compiled/converted?

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PR Comment: https://git.openjdk.org/jdk/pull/29582#issuecomment-3870621284