[Bug c++/84942] [6/7 Regression] internal compiler error: in fold_convert_const_int_from_real, at fold-const.c:2011

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84942

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Mar 23 20:54:01 2018
New Revision: 258821

URL: https://gcc.gnu.org/viewcvs?rev=258821&root=gcc&view=rev
Log:
        PR c++/84942
        * pt.c (tsubst_copy_and_build) <case FIX_TRUNC_EXPR>: Replace
        cp_build_unary_op call with gcc_unreachable ().

        * g++.dg/cpp1y/pr84942.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1y/pr84942.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog