RFR: 8370871: [s390x] consistently update top_frame_sp

[Richard Reingruber]

On Wed, 29 Oct 2025 09:40:34 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> Stores top_frame_sp for interpreter frames consistently. Although this is making one to assert fail in loom port but still I think this should be considered independent bug.

[TemplateInterpreterGenerator::generate_throw_exception()](https://github.com/openjdk/jdk/blob/6817e8cfaf71ee4651f449abbcb863b9ed05b15d/src/hotspot/cpu/s390/templateInterpreterGenerator_s390.cpp#L2067) also needs revision.

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PR Comment: https://git.openjdk.org/jdk/pull/28042#issuecomment-3461106009