RFR: 8324121: SIGFPE in PhaseIdealLoop::extract_long_range_checks [v2]

Wed Mar 27 08:18:26 UTC 2024

On Tue, 26 Mar 2024 16:44:25 GMT, Dean Long <dlong at openjdk.org> wrote:

>> Right but isn't it harmless in this particular case?
>
> No, if it's undefined behavior, we can't be sure what result the C++ compiler will give.  And if we test with -ftrapv it will crash.

Ok. I filed https://bugs.openjdk.org/browse/JDK-8329163 to track it.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18397#discussion_r1540642054