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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 tree-optimization/114249] [14 regression] ICE when building
 lvm2-2.03.22 (error: invalid types in nop conversion)
Date: Wed, 06 Mar 2024 09:27:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114249

--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:3a910114fdb2aa76495c4c748acf6b9c7fbecc89

commit r14-9331-g3a910114fdb2aa76495c4c748acf6b9c7fbecc89
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Mar 6 09:25:15 2024 +0100

    tree-optimization/114249 - ICE with BB reduction vectorization

    When we scrap the last def of an odd lane numbered BB reduction
    we can end up recording a pattern def which will later wreck
    code generation.  The following puts this logic where it better
    belongs, avoiding this issue.

            PR tree-optimization/114249
            * tree-vect-slp.cc (vect_build_slp_instance): Move making
            a BB reduction lane number even ...
            (vect_slp_check_for_roots): ... here to avoid leaking
            pattern defs.

            * gcc.dg/vect/bb-slp-pr114249.c: New testcase.=