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Subject: [Bug tree-optimization/102087] [12 Regression] ICE on valid code at
 -O3 on x86_64-linux-gnu: in determine_exit_conditions, at
 tree-ssa-loop-manip.c:1049 since r12-3136-g3673dcf6d6baeb67
Date: Mon, 24 Jan 2022 09:07:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102087

--- Comment #23 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jiu Fu Guo <guojiufu@gcc.gnu.org>:

https://gcc.gnu.org/g:634de54f9c421b7069865d0d7365ad97412f34bd

commit r12-6834-g634de54f9c421b7069865d0d7365ad97412f34bd
Author: Jiufu Guo <guojiufu@linux.ibm.com>
Date:   Fri Jan 21 17:03:50 2022 +0800

    Update the type of control.base after changed

    This patch correct the type of niter->control.base, when it is updated
    as a PLUS expr.
    During build PLUS expr, the result type should align with the type of
    the operands.

            PR tree-optimization/102087

    gcc/ChangeLog:

            * tree-ssa-loop-niter.cc (number_of_iterations_until_wrap):
            Correct PLUS result type.

    gcc/testsuite/ChangeLog:

            * gcc.dg/pr102087_1.c: New test.=