https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104540
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Alexandre Oliva <aol...@gcc.gnu.org>: https://gcc.gnu.org/g:a026b67f8f70d6cf35daf42a4b0909f78c9d7f40 commit r12-7382-ga026b67f8f70d6cf35daf42a4b0909f78c9d7f40 Author: Alexandre Oliva <ol...@adacore.com> Date: Thu Feb 24 22:03:34 2022 -0300 Cope with NULL dw_cfi_cfa_loc In def_cfa_0, we may set the 2nd operand's dw_cfi_cfa_loc to NULL, but then cfi_oprnd_equal_p calls cfa_equal_p with a NULL dw_cfa_location*. This patch aranges for us to tolerate NULL dw_cfi_cfa_loc. for gcc/ChangeLog PR middle-end/104540 * dwarf2cfi.cc (cfi_oprnd_equal_p): Cope with NULL dw_cfi_cfa_loc. for gcc/testsuite/ChangeLog PR middle-end/104540 * g++.dg/pr104540.C: New.