RFR: JDK-8256258: some missing NULL checks or asserts after CodeCache::find_blob_unsafe [v2]

[Aleksey Shipilev]

On Thu, 12 Nov 2020 11:21:14 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> Most return values of CodeCache::find_blob_unsafe are NULL checked or at least handled by an asserts. However especially on ppc a few are missing and should be added (e.g. in nativeInst_ppc.cpp).
>
> Matthias Baesken has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:
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>   JDK-8256258

Looks good to me. Are these cases only exist in AIX/PPC code?

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Marked as reviewed by shade (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1181