[Bug c++/87075] [7/8/9 Regression] ICE when compiling the test suite of GLM 0.9.9.0

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87075

--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Mon Nov 26 15:53:43 2018
New Revision: 266468

URL: https://gcc.gnu.org/viewcvs?rev=266468&root=gcc&view=rev
Log:
        PR c++/87075 - ICE with constexpr array initialization.

My patch of 2016-08-26 to avoid calling a trivial default constructor
introduced TARGET_EXPRs initialized with void_node to express trivial
initialization.  But when this shows up in a VEC_INIT_EXPR, we weren't
prepared to handle it.  Fixed by handling it explicitly in
cxx_eval_vec_init_1.

        * constexpr.c (cxx_eval_vec_init_1): Handle trivial initialization.

Added:
    branches/gcc-7-branch/gcc/testsuite/g++.dg/cpp1y/constexpr-array6.C
Modified:
    branches/gcc-7-branch/gcc/cp/ChangeLog
    branches/gcc-7-branch/gcc/cp/constexpr.c