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Subject: [Bug tree-optimization/109274] [13 Regression] ice in in_chain_p, at
 gimple-range-gori.cc:119 starting with r13-6787-g0963cb5fde158cce986
Date: Tue, 28 Mar 2023 13:34:36 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109274

--- Comment #13 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andrew Macleod <amacleod@gcc.gnu.org>:

https://gcc.gnu.org/g:dd63bba0c8dc3a6ae06cfdc084bca7c68b8bbd39

commit r13-6906-gdd63bba0c8dc3a6ae06cfdc084bca7c68b8bbd39
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Fri Mar 24 11:21:20 2023 -0400

    Fix compute_operand when op1 =3D=3D op2 symbolically.

    First, class value_relation should not sanitize records. just create
    what is asked.

    Second., if there is not a relation record, compute_operand was
    creating one for op1 =3D=3D op2 if op1 and op2 were the same symbol.   =
This
    is not the correct way to communicate the information, as that record
    will continue to be passed along the GORI unwind chain.

    Instead, simply pass that information locally to the opX_range routine
    for only the current statement.

            PR tree-optimization/109265
            PR tree-optimization/109274
            gcc/
            * gimple-range-gori.cc (gori_compute::compute_operand_range): Do
            not create a relation record is op1 and op2 are the same symbol.
            (gori_compute::compute_operand1_range): Pass op1 =3D=3D op2 to =
the
            handler for this stmt, but create a new record only if this
statement
            generates a relation based on the ranges.
            (gori_compute::compute_operand2_range): Ditto.
            * value-relation.h (value_relation::set_relation): Always create
the
            record that is requested.

            gcc/testsuite/
            * gcc.dg/pr109274.c: New.
            * gfortran.dg/pr109265.f90: New.=