RFR: 8330094: RISC-V: Save and restore FCSR in the call stub [v2]

[Hamlin Li]

On Mon, 15 Apr 2024 13:11:40 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Should we replace read/write/comp of fcsr with frm only?
>
> Yeah, that make sense to me. I think `fflags` is safe to ignore here.
> (And you will also need to update this code comment in file: src/hotspot/cpu/riscv/stubGenerator_riscv.cpp if you do that: ` // -34 [ saved Floating-point Control and Status Register ] <--- sp_after_call`)

Thanks for discussion, all updated.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/18758#discussion_r1565784889