Ok. Comments added:
in V2:
https://gcc.gnu.org/pipermail/gcc-patches/2023-July/624476.html 




juzhe.zhong@rivai.ai
 
From: Robin Dapp
Date: 2023-07-13 23:25
To: juzhe.zhong; Kito Cheng
CC: rdapp.gcc; gcc-patches; jeffreyalaw; kito.cheng; palmer; palmer
Subject: Re: [PATCH] RISC-V: Enable COND_LEN_FMA auto-vectorization
 
> Is COND _LEN FMA ok for trunk?  I can commit it without changing
> scatter store testcase fix.
> 
> It makes no sense block cond Len fma support. The middle end support
> has already been merged.
 
Then just add a TODO or so that says e.g. "For some reason we exceed
the default code model's +-2 GiB limits.  We should investigate why and
add a proper description here.  For now just make sure the test case
compiles properly".
 
Regards
Robin