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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/111807] [14 Regression] ice in
 verify_sra_access_forest with -O1 and bitfields in some cases
Date: Tue, 17 Oct 2023 06:26:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111807

--- Comment #8 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:3aaf704bca3e01c72d9fe6de01ae5416dba6b5db

commit r14-4677-g3aaf704bca3e01c72d9fe6de01ae5416dba6b5db
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Oct 16 12:54:28 2023 +0200

    tree-optimization/111807 - ICE in verify_sra_access_forest

    The following addresses build_reconstructed_reference failing to
    build references with a different offset than the models and thus
    the caller conditional being off.  This manifests when attempting
    to build a ref with offset 160 from the model BIT_FIELD_REF <l_4827[9],=
 8,
0>
    onto the same base l_4827 but the models offset being 288.  This
    cannot work for any kind of ref I can think of, not just with
    BIT_FIELD_REFs.

            PR tree-optimization/111807
            * tree-sra.cc (build_ref_for_model): Only call
            build_reconstructed_reference when the offsets are the same.

            * gcc.dg/torture/pr111807.c: New testcase.=