[Bug c++/83659] [7/8 Regression] ICE on compilable C++ code: in tree_to_shwi, at tree.c:6821

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83659

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Feb  9 05:46:18 2018
New Revision: 257512

URL: https://gcc.gnu.org/viewcvs?rev=257512&root=gcc&view=rev
Log:
        PR c++/83659
        * fold-const.c (fold_indirect_ref_1): Use VECTOR_TYPE_P macro.
        Formatting fixes.  Verify first that tree_fits_poly_int64_p (op01).
        Sync some changes from cxx_fold_indirect_ref.

        * constexpr.c (cxx_fold_indirect_ref): Sync some changes from
        fold_indirect_ref_1, including poly_*int64.  Verify first that
        tree_fits_poly_int64_p (op01).  Formatting fixes.

        * g++.dg/torture/pr83659.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr83659.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/constexpr.c
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog