> Hi. Robin. In general, this patch is OK. But I wonder if there is any 
> regression in rvv/vsetvl testsuite with this patch ?

Actually there shouldn't be.  But the CI found one for rv32.  I forgot to add 
dg-require-effective-target riscv_v_ok.

The wrf built times I saw with -march=rv64gcbv_zvl512b:

Without patch:
real    21m14.521s
user    63m27.612s
sys     0m51.269s

With patch:
real    21m24.898s
user    63m31.112s
sys     0m50.704s

Doesn't seem to have a large effect on build time.  So I guess I'm going to go 
ahead and push this with the target check fixed.

-- 
Regards
 Robin

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