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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/115868] [14 Regression] ICE: in exact_div, at
 poly-int.h:2156
Date: Wed, 17 Jul 2024 07:30:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D115868

--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-14 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:c58bede01c06c84f0b36881fafd1e5d6456a38f4

commit r14-10443-gc58bede01c06c84f0b36881fafd1e5d6456a38f4
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Jul 11 09:56:56 2024 +0200

    tree-optimization/115868 - ICE with .MASK_CALL in simdclone

    The following adjusts mask recording which didn't take into account
    that we can merge call arguments from two vectors like

      _50 =3D {vect_d_1.253_41, vect_d_1.254_43};
      _51 =3D VIEW_CONVERT_EXPR<unsigned char>(mask__19.257_49);
      _52 =3D (unsigned int) _51;
      _53 =3D _Z3bazd.simdclone.7 (_50, _52);
      _54 =3D BIT_FIELD_REF <_53, 256, 0>;
      _55 =3D BIT_FIELD_REF <_53, 256, 256>;

    The testcase g++.dg/vect/pr68762-2.cc exercises this on x86_64 with
    partial vector usage enabled and AVX512 support.

            PR tree-optimization/115868
            * tree-vect-stmts.cc (vectorizable_simd_clone_call): Correctly
            compute the number of mask copies required for
vect_record_loop_mask.

    (cherry picked from commit abf3964711f05b6858d9775c3595ec2b45483e14)=