https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96335
--- Comment #3 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:7d88f924ad8d773cceb08e123cb2831f20d40cb4 commit r10-8541-g7d88f924ad8d773cceb08e123cb2831f20d40cb4 Author: Jakub Jelinek <ja...@redhat.com> Date: Tue Jul 28 11:08:29 2020 +0200 expander: Fix ICE in maybe_warn_rdwr_sizes [PR96335] The following testcase ICEs in maybe_warn_rdwr_sizes. The problem is that the caller uses its fndecl and fntype variables to fill up rdwr_map, and the fntype in that case is a prototype with the access attribute and all the checks needed for that performed. But the maybe_warn_rdwr_sizes function tries to rediscover fndecl/fntype itself and does it differently from how the caller did (for fndecl get_callee_fndecl and fntype from that FUNCTION_DECL, otherwise sets fntype to CALL_EXPR_FN's type). On the testcase, get_callee_fndecl does find a FUNCTION_DECL because it does STRIP_NOPS in between. Instead of trying to rediscover those, this patch just passes them down, like is done in several other functions. 2020-07-28 Jakub Jelinek <ja...@redhat.com> PR middle-end/96335 * calls.c (maybe_warn_rdwr_sizes): Add FNDECL and FNTYPE arguments, instead of trying to rediscover them in the body. (initialize_argument_information): Adjust caller. * gcc.dg/pr96335.c: New test. (cherry picked from commit f9264b9008386ac3b5c795472c222fa524b127b0)
