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

[Hamlin Li]

On Tue, 25 Nov 2025 09:39:26 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> 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.

Sorry for the delayed response.
I've added the test case to cover all the code paths.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28309#discussion_r2577477492