RFR: 8347489: RISC-V: Misaligned memory access with COH [v4]

[Fei Yang]

On Wed, 15 Jan 2025 15:01:59 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> src/hotspot/cpu/riscv/stubGenerator_riscv.cpp line 2474:
>> 
>>> 2472: 
>>> 2473:     // strL is 8-byte aligned
>>> 2474:     __ ld(tmpLval, Address(strL));
>> 
>> This should also be a `load_long_misaligned`?
>
> And the below one in this function?

Good catch! I think I missed the second one. Fixed.
For the first one, I think we are OK as `strL` is ensured to be 8-byte aligned by the caller [1].

[1] https://github.com/openjdk/jdk/blob/master/src/hotspot/cpu/riscv/stubGenerator_riscv.cpp#L2526

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

PR Review Comment: https://git.openjdk.org/jdk/pull/23053#discussion_r1929964636