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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/94261] [10 Regression] ICE in
 vect_get_vec_def_for_operand_1 for 3-element condition reduction
Date: Mon, 23 Mar 2020 15:48:50 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94261

--- Comment #11 from CVS 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:4dcc4502f316a7320fe72b62c60af12c77e1c96c

commit r10-7335-g4dcc4502f316a7320fe72b62c60af12c77e1c96c
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Mar 23 13:08:41 2020 +0100

    tree-optimization/94261 - avoid IL adjustments in SLP analysis

    The remaining IL adjustment done by SLP analysis turns out harmful
    since we share them in the now multiple analyses states.  It turns
    out we do not actually need those apart from the case where we
    reorg scalar stmts during re-arrangement when optimizing load
    permutations in SLP reductions.  But that isn't needed either now
    since we only need to permute non-isomorphic parts which now
    reside in separate SLP nodes who are all leafs.

    2020-03-23  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/94261
            * tree-vect-slp.c (vect_get_and_check_slp_defs): Remove
            IL operand swapping code.
            (vect_slp_rearrange_stmts): Do not arrange isomorphic
            nodes that would need operation code adjustments.=