https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79681
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Fri May 5 21:34:36 2017 New Revision: 247678 URL: https://gcc.gnu.org/viewcvs?rev=247678&root=gcc&view=rev Log: Backported from mainline 2017-03-01 Jakub Jelinek <ja...@redhat.com> PR c++/79681 * fold-const.c (make_bit_field_ref): If orig_inner is COMPONENT_REF, attempt to use its first operand as BIT_FIELD_REF base. * g++.dg/cpp1y/constexpr-79681-1.C: New test. * g++.dg/cpp1y/constexpr-79681-2.C: New test. Added: branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/constexpr-79681-1.C branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp1y/constexpr-79681-2.C Modified: branches/gcc-6-branch/gcc/ChangeLog branches/gcc-6-branch/gcc/fold-const.c branches/gcc-6-branch/gcc/testsuite/ChangeLog
