[Bug target/113247] RISC-V: Performance bug in SHA256 after enabling RVV vectorization

[juzhe.zhong at rivai dot ai]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113247

--- Comment #7 from JuzheZhong <juzhe.zhong at rivai dot ai> ---
Hi, Robin.

I sent a patch switching cost model into generic cost model:

https://gcc.gnu.org/pipermail/gcc-patches/2024-January/642428.html

But I tweak the cost back to default cost.

Since current generic cost model has inferior codegen in dynamic-lmul2-7.c,
I think we should switch it first, then we can together tune the cost model
together so that we don't block our work.