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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/112941] during GIMPLE pass: bitintlower ICE:
 in handle_operand_addr, at gimple-lower-bitint.cc:2126
 (gimple-lower-bitint.cc:2134) at -O with _BitInt()
Date: Fri, 22 Dec 2023 11:30:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112941

--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:0a6aa1927597d821a85bc3d1fd7682256c25b548

commit r14-6805-g0a6aa1927597d821a85bc3d1fd7682256c25b548
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Fri Dec 22 12:28:54 2023 +0100

    symtab-thunks: Use aggregate_value_p even on is_gimple_reg_type returns
[PR112941]

    Large/huge _BitInt types are returned in memory and the bitint lowering
    pass right now relies on that.
    The gimplification etc. use aggregate_value_p to see if it should be
    returned in memory or not and use
      <retval> =3D _123;
      return <retval>;
    rather than
      return _123;
    But expand_thunk used e.g. by IPA-ICF was performing an optimization,
    assuming is_gimple_reg_type is always passed in registers and not calli=
ng
    aggregate_value_p in that case.  The following patch changes it to match
    what the gimplification etc. are doing.

    2023-12-22  Jakub Jelinek  <jakub@redhat.com>

            PR tree-optimization/112941
            * symtab-thunks.cc (expand_thunk): Check aggregate_value_p
regardless
            of whether is_gimple_reg_type (restype) or not.

            * gcc.dg/bitint-60.c: New test.=