RFR: 8366815: C2: Delay Mod/Div by constant transformation

[Tobias Hotz]

On Thu, 18 Dec 2025 08:21:51 GMT, Hannes Greule <hgreule at openjdk.org> wrote:

>> @merykitty Why not file an RFE with a reproducer for incremental inlining?
>> 
>> And yes, I totally agree it would be nicer if things were organized better!
>
> @eme64 GHA passed, could you run testing? Thanks!

@SirYwell sorry, but you should probably pull in master once more now that [https://github.com/openjdk/jdk/pull/26143 is merged. [IntegerDivValueTests](https://github.com/openjdk/jdk/blob/2ba423db9925355348106fc9fcf84450123d2605/test/hotspot/jtreg/compiler/igvn/IntegerDivValueTests.java#L284) has some IR rules that should be enabled with this PR (as far as I can tell).

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PR Comment: https://git.openjdk.org/jdk/pull/27886#issuecomment-3669897241