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Subject: Pushed: [PATCH] LoongArch: Generate bytepick.[wd] for suitable bit
 operation pattern
From: Xi Ruoyao <xry111@xry111.site>
To: Lulu Cheng <chenglulu@loongson.cn>, gcc-patches@gcc.gnu.org
Cc: WANG Xuerui <i@xen0n.name>, Chenghua Xu <xuchenghua@loongson.cn>
Date: Mon, 06 Feb 2023 21:55:37 +0800
In-Reply-To: <046c8fce-99b8-17aa-e0e2-d3a17430ccc7@loongson.cn>
References: <20230203175022.690671-1-xry111@xry111.site>
	 <046c8fce-99b8-17aa-e0e2-d3a17430ccc7@loongson.cn>
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On Mon, 2023-02-06 at 21:07 +0800, Lulu Cheng wrote:
>=20
> =E5=9C=A8 2023/2/4 =E4=B8=8A=E5=8D=881:50, Xi Ruoyao =E5=86=99=E9=81=93:
> > We can use bytepick.[wd] for
> >=20
> > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 a << (8 * x) | b >> (8 * (sizeof(a) - x)=
)
> >=20
> > while a and b are uint32_t or uint64_t.=C2=A0 This is useful for some c=
ases,
> > for example:
> > https://sourceware.org/pipermail/libc-alpha/2023-February/145203.html
> >=20
> > Bootstrapped and regtested on loongarch64-linux-gnu.
> > Ok for trunk (now or GCC 14 stage 1)?
>=20
> LGTM!
>=20
> I think this change is not big and can be merged into the trunk branch.

Pushed r13-5710.

--=20
Xi Ruoyao <xry111@xry111.site>
School of Aerospace Science and Technology, Xidian University