RFR: 8369646: Detection of redundant conversion patterns in add_users_of_use_to_worklist is too restrictive [v3]

[Christian Hagedorn]

On Mon, 27 Oct 2025 08:39:21 GMT, Benoît Maillard <bmaillard at openjdk.org> wrote:

>> test/hotspot/jtreg/compiler/c2/TestEliminateRedundantConversionSequences.java line 32:
>> 
>>> 30:  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions
>>> 31:  *      -XX:CompileCommand=compileonly,compiler.c2.TestEliminateRedundantConversionSequences::test*
>>> 32:  *      -XX:-TieredCompilation -Xbatch -XX:VerifyIterativeGVN=1110
>> 
>> You could either add a separate run with `-XX:+StressIGVN` without a fixed seed or just add `-XX:+StressIGVN` here. I guess the latter is good enough.
>
> I agree, and I just added `-XX:+StressIGVN` to the existing run.

Looks good, thanks!

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PR Review Comment: https://git.openjdk.org/jdk/pull/27900#discussion_r2465162966