RFR: 8295486: Inconsistent constant field values observed during compilation

[Vladimir Kozlov]

On Mon, 9 Jan 2023 18:17:58 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

> IMO we should focus solely on C2 where aforementioned inconsistencies trigger assertion failures and (rarely) break compilation replay. (The rest is classified as user errors according to `@Stable` contract.) Caching a single value (either null or non-null) for the duration of the compilation addresses both problems.

+1

C2 generated code is "final" (C1 code and Interpreter are executed only at initial stage with exception of deoptimization).

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PR: https://git.openjdk.org/jdk/pull/11861