RFR: 8332689: RISC-V: Use load instead of trampolines [v22]

[Robbin Ehn]

On Thu, 4 Jul 2024 13:18:57 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

>> Seems no need to worry about that? I think it's up to the caller to decide if it wants compressed instructions.
>> Here in this case, the only call site is within a relocate() which will disable compressed instructions for you[1].
>> 
>>   relocate(entry.rspec(), [&] {
>>     load_link_jump(target);
>>   });
>> 
>> [1] https://github.com/openjdk/jdk/blob/master/src/hotspot/cpu/riscv/assembler_riscv.hpp#L2130
>
> When you use reloc_call the size of the call must be an exact size we already specified (3 * NativeInstruction::instruction_size). (if those sizes don't apply you don't want a reloc_call) 
> So there is nothing to choose from the caller prespective.

Maybe in the future load_link_jump will be used out side reloc_call, was that your thinking?

Anyhow change _ld to ld ?

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PR Review Comment: https://git.openjdk.org/jdk/pull/19453#discussion_r1665707305