RFR: 8279822: CI: Constant pool entries in error state are not supported [v2]

[Vladimir Ivanov]

On Tue, 8 Feb 2022 14:55:53 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> Compiler interface doesn't expect to see constant pool entries in error state and crashes when those are encountered.
>> 
>> JDK-8262377 improved handling of class constants in error state (`JVM_CONSTANT_UnresolvedClassInError`), but there were more cases left unnoticed (`CONSTANT_MethodHandle`, `CONSTANT_MethodType`, and `CONSTANT_Dynamic`). 
>> 
>> Proposed fix introduces proper support in CI of unresolved constants in error state and improves handling of such cases in C1/C2.
>> 
>> Also,  for `CONSTANT_MethodHandle` it turned out that some of `LinkageError`s don't transition relevant CP entry into error state (leaving it in unresolved state forever). The fix addresses it.
>> 
>> Testing: hs-tier1 - hs-tier6
>
> Vladimir Ivanov has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
> 
>  - fatal -> assert
>  - Merge branch 'master' into 8279822.cpe_in_error
>  - Compiler support of CP entries in error state

Thanks for the reviews, Vladimir and Tobias.

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PR: https://git.openjdk.java.net/jdk/pull/7314