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Subject: [Bug tree-optimization/83073] Range for VR_VARYING | [1, 1]
Date: Thu, 13 Jan 2022 18:52:21 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D83073

--- Comment #6 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:49d5fb4feee831868d80fff4d024c271911c92ca

commit r12-6559-g49d5fb4feee831868d80fff4d024c271911c92ca
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Wed Jan 12 13:31:08 2022 -0500

    Allow more precision when querying from fold_const.

    fold_const::expr_not_equal_to queries for a current range, but still us=
es
    the old value_range class.  This is causing it to miss opportunities wh=
en
    ranger can provide something better.

            PR tree-optimization/83072
            PR tree-optimization/83073
            PR tree-optimization/97909
            gcc/
            * fold-const.c (expr_not_equal_to): Use a multi-range class.

            gcc/testsuite/
            * gcc.dg/pr83072-2.c: New.
            * gcc.dg/pr83073.c: New.=