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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/107088] [13 Regression] cselib ICE building
 __trunctfxf2 on ia64
Date: Thu, 06 Oct 2022 06:47:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107088

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Stefan Schulze Frielinghaus
<stefansf@gcc.gnu.org>:

https://gcc.gnu.org/g:5fc4d3e1837ea4850aac6460f563913f1d3fc5b8

commit r13-3105-g5fc4d3e1837ea4850aac6460f563913f1d3fc5b8
Author: Stefan Schulze Frielinghaus <stefansf@linux.ibm.com>
Date:   Thu Oct 6 08:43:53 2022 +0200

    cselib: Skip BImode while keeping track of subvalue relations [PR107088]

    For BImode get_narrowest_mode evaluates to QImode but BImode < QImode.
    Thus FOR_EACH_MODE_UNTIL never reaches BImode and iterates until OImode
    for which no wider mode exists so we end up with VOIDmode and fail.
    Fixed by adding a size guard so we effectively skip BImode.

    gcc/ChangeLog:

            PR rtl-optimization/107088
            * cselib.cc (new_cselib_val): Skip BImode while keeping track of
            subvalue relations.=