https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91705

--- Comment #9 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Tue Sep 10 21:04:33 2019
New Revision: 275613

URL: https://gcc.gnu.org/viewcvs?rev=275613&root=gcc&view=rev
Log:
        PR c++/91705 - constexpr evaluation rejects ++/-- on floats.
        * constexpr.c (cxx_eval_increment_expression): Call fold_simple on
        the offset.

        * g++.dg/cpp1y/constexpr-incr2.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1y/constexpr-incr2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/constexpr.c
    trunk/gcc/testsuite/ChangeLog

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