[Bug c++/70001] [5/6 regression] Infinity compilation time

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70001

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Mar 10 17:23:06 2016
New Revision: 234117

URL: https://gcc.gnu.org/viewcvs?rev=234117&root=gcc&view=rev
Log:
        PR c++/70001
        * constexpr.c (cxx_eval_vec_init_1): For pre_init case, reuse
        return value from cxx_eval_constant_expression from earlier
        elements if it is valid constant initializer requiring no
        relocations.

        * g++.dg/cpp0x/constexpr-70001-1.C: New test.
        * g++.dg/cpp0x/constexpr-70001-2.C: New test.
        * g++.dg/cpp0x/constexpr-70001-3.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-70001-1.C
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-70001-2.C
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-70001-3.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/constexpr.c
    trunk/gcc/testsuite/ChangeLog