RFR: 8357551: RISC-V: support CMoveF/D vectorization [v6]

[Hamlin Li]

On Tue, 25 Nov 2025 02:38:52 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   fix is_unordered
>
> src/hotspot/cpu/riscv/c2_MacroAssembler_riscv.cpp line 2141:
> 
>> 2139:     case BoolTest::gt:
>> 2140:       cmov_fp_cmp_fp_gt(op1, op2, dst, src, cmp_single, cmov_single);
>> 2141:       log_warning(jit)("Float/Double BoolTest::gt path is not tested well, please report the test case!");
> 
> My local tests show this does happen. Try this:
> `$ make test TEST="./test/jdk/javax/sound/midi/Gervill/SoftFilter/TestProcessAudio.java" TEST_VM_OPTS="-XX:-TieredCompilation"`
> 
> I think this could be a good reference if you want to add some extra tests for the two cases here.

Thanks, I'll check it later.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28309#discussion_r2559281739