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Subject: [Bug middle-end/99641] [11 Regression] opt30.adb, opt49.adb and
 loop_optimization3.adb fail to build at m32
Date: Fri, 19 Mar 2021 09:42:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99641

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Eric Botcazou <ebotcazou@gcc.gnu.org>:

https://gcc.gnu.org/g:b980edba506442c846cc779243ceeffd13065740

commit r11-7729-gb980edba506442c846cc779243ceeffd13065740
Author: Eric Botcazou <ebotcazou@adacore.com>
Date:   Fri Mar 19 09:21:11 2021 +0100

    Fix segfault during encoding of CONSTRUCTORs

    The segfault occurs in native_encode_initializer when it is encoding the
    CONSTRUCTOR for an array whose lower bound is negative (it's OK in Ada).
    The computation of the current position is done in HOST_WIDE_INT and th=
is
    does not work for arrays whose original range has a negative lower bound
    and a positive upper bound; the computation must be done in sizetype
    instead so that it may wrap around.

    gcc/
            PR middle-end/99641
            * fold-const.c (native_encode_initializer) <CONSTRUCTOR>: For an
            array type, do the computation of the current position in sizet=
ype.=