Hi,
I would like to ping this for comments.
https://gcc.gnu.org/pipermail/gcc-patches/2023-February/611821.html
In this patch, "subreg:DI (x:SI)" is used. I' thinking that this
may be a concern, while it maybe acceptable for current code.
BR,
Jeff (Jiufu)
Jiufu Guo writes:
> Hi,
>
> Compare
Hi,
Compare with previous version:
https://gcc.gnu.org/pipermail/gcc-patches/2023-February/611513.html
This patch remove un-needed lowpart_subreg_operand.
For code:
```
u64
test_rlwinm_lowpart_mask (u32 v)
{
u32 v1 = ((v << N) | (v >> (32 - N))) & 0xf00;
return (u64)v1;
}
```
We generate
