[Bug target/112447] risc-v regression: FAIL: gcc.c-torture/execute/memset-3.c -O3

[juzhe.zhong at rivai dot ai via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112447

--- Comment #12 from JuzheZhong <juzhe.zhong at rivai dot ai> ---
The merge is correct here.

vmv.x.s demand SEW = 32 wheras vle/vse demand RATIO = 16 (e8mf2)

So, to make vsetvl valid for both of them, the vtype should be sew = 32 and
lmul = M2 (32 / 16 = 2).