https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99324
--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-8 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:cd7c8ae0178c5dad7e8cec6c001e9e334d8c31bc commit r8-10893-gcd7c8ae0178c5dad7e8cec6c001e9e334d8c31bc Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Mar 3 09:55:19 2021 +0100 c-family: Avoid ICE on va_arg [PR99324] build_va_arg calls the middle-end mark_addressable, which e.g. requires that cfun is non-NULL. The following patch calls instead c_common_mark_addressable_vec which is the c-family variant similarly to the FE c_mark_addressable and cxx_mark_addressable, except that it doesn't error on addresses of register variables. As the taking of the address is artificial for the .VA_ARG ifn and when that is lowered goes away, it is similar case to the vector subscripting for which c_common_mark_addressable_vec has been added. 2021-03-03 Jakub Jelinek <ja...@redhat.com> PR c/99324 * c-common.c (build_va_arg): Call c_common_mark_addressable_vec instead of mark_addressable. Fix a comment typo - neutrallly -> neutrally. * gcc.c-torture/compile/pr99324.c: New test. (cherry picked from commit 0e87dc86eb56f732a41af2590f0b807031003fbe)
