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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/97886] [11 Regression] ICE in
 vect_slp_analyze_node_operations, at tree-vect-slp.c:3528 since
 r11-4428-g4a369d199bf2f34e037030b18d0da923e8a24997
Date: Wed, 18 Nov 2020 09:30:57 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97886

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot =
gnu.org

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.  This is odd IL - we're having a PHI node copying an extern and we're
getting confused about it

pr95295-3.c:7:6: note: node 0x399c5a0 (max_nunits=3D16, refcnt=3D1)
pr95295-3.c:7:6: note:  stmt 0 arr_2_I_lsm.9_41 =3D PHI <_4(31)>
pr95295-3.c:7:6: note:  children 0x399c450
pr95295-3.c:7:6: note: node (external) 0x399c450 (max_nunits=3D1, refcnt=3D=
1)
pr95295-3.c:7:6: note:  { _4 }

of course I never thought we'll run into this ;)=