RFR: 8309136: [JVMCI] add -XX:+UseGraalJIT flag [v2]

[David Holmes]

On Wed, 31 May 2023 08:27:59 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

>  Actually checking the availability of Graal can only be done in the code I linked to and it's only done on the first Graal JIT compilation (JVMCI compiler initialization is lazy to reduce impact to VM startup time).

Are you saying that the application will start executing quite happily in interpreted mode and then only abort when the JIT first kicks in? That would be a very bad thing to do unless you can guarantee the jit will kick in extremely early during VM init sequence.

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PR Comment: https://git.openjdk.org/jdk/pull/14231#issuecomment-1571082925