RFR: 8370332: C2 SuperWord: SIGSEGV because PhaseIdealLoop::split_thru_phi left dead nodes in loop _body [v2]

[Emanuel Peter]

On Mon, 3 Nov 2025 09:25:33 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Emanuel Peter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   allow unique out with multiple uses
>
> That looks good to me and I agree to add verification for that case with `VerifyLoopOptimizations` at some point.

@chhagedorn Thanks for reviewing and the suggestions! I addressed them all. Does it look good to you now?

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PR Comment: https://git.openjdk.org/jdk/pull/27955#issuecomment-3480307003