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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/113163] [14 Regression][GCN] ICE in
 vect_peel_nonlinear_iv_init, at tree-vect-loop.cc:9420
Date: Tue, 09 Jan 2024 11:18:41 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113163

--- Comment #13 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tamar Christina <tnfchris@gcc.gnu.org=
>:

https://gcc.gnu.org/g:cbf569486b2decbde0308f9f4d0f0837e4cfefd9

commit r14-7036-gcbf569486b2decbde0308f9f4d0f0837e4cfefd9
Author: Tamar Christina <tamar.christina@arm.com>
Date:   Tue Jan 9 11:16:16 2024 +0000

    middle-end: rejects loops with nonlinear inductions and early breaks
[PR113163]

    We can't support nonlinear inductions other than neg when vectorizing
    early breaks and iteration count is known.

    For early break we currently require a peeled epilog but in these cases
    we can't compute the remaining values.

    gcc/ChangeLog:

            PR middle-end/113163
            * tree-vect-loop-manip.cc (vect_can_peel_nonlinear_iv_p):
            Reject non-linear inductions that aren't supported.

    gcc/testsuite/ChangeLog:

            PR middle-end/113163
            * gcc.target/gcn/pr113163.c: New test.=