[Bug c++/92343] [[likely]]/[[unlikely]] prevent method from being a constant expression

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92343

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Nov  5 10:16:39 2019
New Revision: 277819

URL: https://gcc.gnu.org/viewcvs?rev=277819&root=gcc&view=rev
Log:
        PR c++/92343
        * constexpr.c (potential_constant_expression_1): Return true rather
        than false for PREDICT_EXPR.

        * g++.dg/cpp2a/attr-likely6.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp2a/attr-likely6.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/constexpr.c
    trunk/gcc/testsuite/ChangeLog