RFR: 8303147: [s390x] fast & slow debug builds are broken [v2]

[SUN Guoyun]

On Mon, 6 Mar 2023 08:28:36 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

>> https://github.com/openjdk/jdk/blob/master/src/hotspot/cpu/s390/c1_LIRAssembler_s390.cpp#L2534
>> Maybe you can try store klass_RInfo & k_RInfo to current sp location but not  reserve_stack space. such as:
>> __ z_stg(klass_RInfo, offset_in_bytes, Z_SP);
>
> But there are other call sites as well, what about them ? You mean to change them all ?

I don't know much about the implementation of `emit_typecheck_helper` yet, maybe you can refer to aarch64.

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