RFR: 8303147: [s390x] fast & slow debug builds are broken

[Kim Barrett]

On Thu, 2 Mar 2023 10:06:17 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> This PR fixes broken fast debug and slow debug build for s390x-arch. tier1 test are completed and results are not affect after this patch.

src/hotspot/cpu/aarch64/c1_Defs_aarch64.hpp line 93:

> 91: enum {
> 92:   pd_reserved_argument_area_size_factor = 2
> 93: };

[Not a review, just a drive-by comment.]
Please don't use enums to define constants like this.  This is an old and obsolete style that shouldn't be
used any more.  Quoting from the HotSpot Style Guide:
"Due to bugs in certain (very old) compilers, there is widespread use of enums and avoidance of in-class initialization of static integral constant members. Compilers having such bugs are no longer supported. Except where an enum is semantically appropriate, new code should use integral constants."

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PR: https://git.openjdk.org/jdk/pull/12825