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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/110788] Spilling to mask register for GPR vec_duplicate
Date: Thu, 27 Jul 2023 07:09:48 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110788

--- Comment #2 from Hongtao.liu <crazylht at gmail dot com> ---
(In reply to Hongtao.liu from comment #1)
> I prefer to add an UNSPEC to vpbroadcastm, don't want to mix gpr and kmask
> too much for vec_duplicate:zero_extend pattern.

And got this:

.L3:
        vmovapd b(%rax), %ymm1{%k1}
        movl    %edx, %esi
        subl    $4, %edx
        movzwl  %dx, %ecx
        vmulpd  %ymm3, %ymm1, %ymm0{%k1}{z}
        vmovapd %ymm0, a(%rax){%k1}
        vpbroadcastd    %ecx, %xmm0
        addq    $32, %rax
        vpcmpud $6, %xmm2, %xmm0, %k1
        cmpw    $4, %si
        ja      .L3
        vzeroupper=