RFR: 8359064: Expose reason for marking nmethod non-entrant to JVMCI client [v5]
Cesar Soares Lucas
cslucas at openjdk.org
Thu Jun 12 19:40:13 UTC 2025
> We recently introduced a way to set the reason why a nmethod was being marked as `not entrant`, see [here](https://github.com/openjdk/jdk/pull/23980) and [here](https://github.com/openjdk/jdk/pull/25338).
>
> This PR is to expose in the JVMCI interface the reason why the nmethod was flagged as `not entrant`. This will allow JVMCI-based compilers to implement heuristics to handle re-compilations differently based on what happened to earlier versions of a method, for instance, this will likely be used to address this [RFE in Truffle](https://github.com/oracle/graal/issues/11045
> ).
>
> Tested on Linux x86_64, ARM with JTREG tier 1-3.
Cesar Soares Lucas has updated the pull request incrementally with one additional commit since the last revision:
Rename 'reasons' enum. Adjust default value for invalidationReason.
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/25706/files
- new: https://git.openjdk.org/jdk/pull/25706/files/1f3c2598..831ba2f0
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=25706&range=04
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=25706&range=03-04
Stats: 121 lines in 22 files changed: 1 ins; 2 del; 118 mod
Patch: https://git.openjdk.org/jdk/pull/25706.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/25706/head:pull/25706
PR: https://git.openjdk.org/jdk/pull/25706
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