https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101624
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:637cdf226ceaf1b96b9304c0626e8dc5e25d7095 commit r10-10639-g637cdf226ceaf1b96b9304c0626e8dc5e25d7095 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Jul 28 18:43:15 2021 +0200 ubsan: Fix ICEs with DECL_REGISTER tests [PR101624] The following testcase ICEs, because the base is a CONST_DECL for the Fortran parameter, and ubsan/sanopt uses DECL_REGISTER macro on it. /* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */ #define DECL_REGISTER(NODE) (DECL_WRTL_CHECK (NODE)->decl_common.decl_flag_0) while CONST_DECL doesn't satisfy DECL_WRTL_CHECK. The following patch checks explicitly for VAR_DECL/PARM_DECL/RESULT_DECL only before using DECL_REGISTER, assumes other decls aren't DECL_REGISTER. Not really sure about RESULT_DECL but it at least satisfies DECL_WRTL_CHECK... 2021-07-28 Jakub Jelinek <ja...@redhat.com> PR middle-end/101624 * ubsan.c (maybe_instrument_pointer_overflow, instrument_object_size): Only test DECL_REGISTER on VAR_DECLs, PARM_DECLs or RESULT_DECLs. * sanopt.c (maybe_optimize_ubsan_ptr_ifn): Likewise. * gfortran.dg/ubsan/ubsan.exp: New file. * gfortran.dg/ubsan/pr101624.f90: New test. (cherry picked from commit 49e28c02a95a4bee981e69a80950309869580151)
