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Date:      Sat, 20 Apr 2024 10:33:24 +0000
From:      bugzilla-noreply@freebsd.org
To:        toolchain@FreeBSD.org
Subject:   [Bug 278305] clang crashes: fatal error: error in backend: Cannot select: t71: v32bf16 = insert_subvector t67, t64, Constant:i32<16> (on the port misc/ncnn)
Message-ID:  <bug-278305-29464-2XUzu6jZTv@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-278305-29464@https.bugs.freebsd.org/bugzilla/>
References:  <bug-278305-29464@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278305

--- Comment #5 from commit-hook@FreeBSD.org ---
A commit in branch stable/14 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=3Da3549d8d4dbf7f6e30bcbdc18cf6dda2b=
d09d39b

commit a3549d8d4dbf7f6e30bcbdc18cf6dda2bd09d39b
Author:     Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2024-04-11 21:12:42 +0000
Commit:     Dimitry Andric <dim@FreeBSD.org>
CommitDate: 2024-04-20 10:03:25 +0000

    Merge commit 55c466da2f2f from llvm-project (by Benjamin Kramer):

      [X86][AVX512BF16] Add a few missing insert/extract patterns

      These are really the same as the f16 (and i16) instructions, but we n=
eed
      them for any type that can occur.

    Merge commit 2e4e04c59043 from llvm-project (by Phoebe Wang):

      [X86][BF16] Do not lower to VCVTNEPS2BF16 without AVX512VL (#86395)

      Fixes: #86305

    These should fix "fatal error: error in backend: Cannot select: t71:
    v32bf16 =3D insert_subvector t67, t64, Constant:i32<16>" when building =
the
    misc/ncnn port.

    PR:             278305
    Reported by:    yuri
    MFC after:      1 month

    (cherry picked from commit 78d3648e73d11c5a4dbcc0392907f0723bf1df1c)

 contrib/llvm-project/llvm/lib/Target/X86/X86ISelLowering.cpp |  7 +++++--
 contrib/llvm-project/llvm/lib/Target/X86/X86InstrAVX512.td   | 12 ++++++++=
++++
 2 files changed, 17 insertions(+), 2 deletions(-)

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