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From: "juzhe.zhong at rivai dot ai" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/106694] Redundant move instructions in ARM SVE
 intrinsics use cases
Date: Wed, 08 Nov 2023 03:58:45 +0000
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X-Bugzilla-Keywords: missed-optimization, ra
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X-Bugzilla-Who: juzhe.zhong at rivai dot ai
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106694

--- Comment #12 from JuzheZhong <juzhe.zhong at rivai dot ai> ---
(In reply to Richard Sandiford from comment #10)
> Some of the SME changes I'm working on fix this, but I'm not sure how wid=
ely
> we'll be able to use them on non-SME code.  Assigning myself just in case.

Hi, Richard. My colleague Lehua has sent patches for general subreg liveness
tracking.
We are sure it can fixed all subreg issue of RVV and ARM SVE.

Not sure SME codes. We weren't able to test it.

This is general optimization. Hope we can be possible to make it landed.=