https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114537
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:42afabb838d511f5feb150bfa4e68b5880aae1fa commit r12-10518-g42afabb838d511f5feb150bfa4e68b5880aae1fa Author: Jakub Jelinek <ja...@redhat.com> Date: Thu Apr 4 10:47:52 2024 +0200 fold-const: Handle NON_LVALUE_EXPR in native_encode_initializer [PR114537] The following testcase is incorrectly rejected. The problem is that for bit-fields native_encode_initializer expects the corresponding CONSTRUCTOR elt value must be INTEGER_CST, but that isn't the case here, it is wrapped into NON_LVALUE_EXPR by maybe_wrap_with_location. We could STRIP_ANY_LOCATION_WRAPPER as well, but as all we are looking for is INTEGER_CST inside, just looking through NON_LVALUE_EXPR seems easier. 2024-04-04 Jakub Jelinek <ja...@redhat.com> PR c++/114537 * fold-const.cc (native_encode_initializer): Look through NON_LVALUE_EXPR if val is INTEGER_CST. * g++.dg/cpp2a/bit-cast16.C: New test. (cherry picked from commit 1baec8deb014b8a7da58879a407a4c00cdeb5a09)
