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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/106963] [13 Regression] ICE in
 vect_gen_perm_mask_checked, at tree-vect-stmts.cc:8606 since
 r13-2503-gc13223b790bbc5e4
Date: Wed, 21 Sep 2022 07:48:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106963

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>:

https://gcc.gnu.org/g:eddbb81f1254f025d6f1b6b8e7554aa9a3830302

commit r13-2754-geddbb81f1254f025d6f1b6b8e7554aa9a3830302
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Sep 20 13:22:28 2022 +0800

    Don't check can_vec_perm_const_p for nonlinear iv_init when it's consta=
nt.

    When init_expr is INTEGER_CST or REAL_CST, can_vec_perm_const_p is not
    necessary since there's no real vec_perm needed, but
    vec_gen_perm_mask_checked will gcc_assert (can_vec_perm_const_p). So
    it's better to use vec_gen_perm_mask_any in
    vect_create_nonlinear_iv_init.

    gcc/ChangeLog:

            PR tree-optimization/106963
            * tree-vect-loop.cc (vect_create_nonlinear_iv_init): Use
            vec_gen_perm_mask_any instead of vec_gen_perm_mask_check.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr106963.c: New test.=