https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96391
--- Comment #25 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:9e64426dae129cca5b62355ef6c5a3bd6137e830 commit r12-1538-g9e64426dae129cca5b62355ef6c5a3bd6137e830 Author: Jason Merrill <ja...@redhat.com> Date: Mon Jun 14 17:37:43 2021 -0400 libcpp: location comparison within macro [PR100796] The patch for 96391 changed linemap_compare_locations to give up on comparing locations from macro expansions if we don't have column information. But in this testcase, the BOILERPLATE macro is multiple lines long, so we do want to compare locations within the macro. So this patch moves the LINE_MAP_MAX_LOCATION_WITH_COLS check inside the block, to use it for failing gracefully. PR c++/100796 PR preprocessor/96391 libcpp/ChangeLog: * line-map.c (linemap_compare_locations): Only use comparison with LINE_MAP_MAX_LOCATION_WITH_COLS to avoid abort. gcc/testsuite/ChangeLog: * g++.dg/plugin/location-overflow-test-pr100796.c: New test. * g++.dg/plugin/plugin.exp: Run it.
