> On Oct 31, 2024, at 17:19, Kito Cheng <kito.ch...@gmail.com> wrote:
>
> This will make the target attribute able to accept 'priority' as well?
Yes, but it doesn't have any effect since the only consumer of the
'priority' is sorting each versioned function when generating the
IFUNC resolver.
> so I guess we need to make riscv_target_attr_parser able to
> distinguish target and target_version? maybe add an extra argument to
> riscv_target_attr_parser?
I think so if it really needed.
>
> On Thu, Oct 24, 2024 at 3:12 PM Yangyu Chen <c...@cyyself.name> wrote:
>>
>> This patch adds the priority syntax parser to support the Function
>> Multi-Versioning (FMV) feature in RISC-V. This feature allows users to
>> specify the priority of the function version in the attribute syntax.
>>
>> Chnages based on RISC-V C-API PR:
>> https://github.com/riscv-non-isa/riscv-c-api-doc/pull/85
>>
>> gcc/ChangeLog:
>>
>> * config/riscv/riscv-target-attr.cc
>> (riscv_target_attr_parser::handle_priority): New function.
>> (riscv_target_attr_parser::update_settings): Update priority
>> attribute.
>> (riscv_process_one_target_attr): Add const qualifier to arg_str
>> and split arg_str with ';'.
>> * config/riscv/riscv.opt: Add TargetVariable riscv_fmv_priority.
>> ---
