RFR: 8332602: [s390x] Improve itable_stub

[Amit Kumar]

On Thu, 13 Jun 2024 13:10:35 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> s390x Port similar to [JDK-8305959 (x86)](https://bugs.openjdk.org/browse/JDK-8305959) and [JDK-8307352(aarch64)](https://bugs.openjdk.org/browse/JDK-8307352)
> 
> Testing: I ran `tier1` test on fastdebug & release VM; I didn't see any regression there;

src/hotspot/cpu/s390/macroAssembler_s390.hpp line 680:

> 678:                                     Register r_temp2,
> 679:                                     int      itable_index,
> 680:                                     Label&   nl_no_such_interface);

Suggestion:

                                    Label&   L_no_such_interface);

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PR Review Comment: https://git.openjdk.org/jdk/pull/19698#discussion_r1638456278