RFR: 8316893: Compile without -fno-delete-null-pointer-checks

[Julian Waters]

On Fri, 29 Sep 2023 10:01:42 GMT, Daniel Jeliński <djelinski at openjdk.org> wrote:

> Please review this patch that reenables `delete-null-pointer-checks` optimization in GCC and Clang.
> 
> It also disables `nonnull-compare` warning that is now triggered in debug builds. The problematic code will be addressed by #15927.
> 
> Mach5 Tier1-5 testing clean.

Man, your work with clang is really leaving me in the dust :P
Have a thumbs up!

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PR Comment: https://git.openjdk.org/jdk/pull/15982#issuecomment-1741689781