https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103165
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:a6e0d593707ae44dec0bdf2bcdc4f539050b46db commit r12-5454-ga6e0d593707ae44dec0bdf2bcdc4f539050b46db Author: Jakub Jelinek <ja...@redhat.com> Date: Mon Nov 22 22:29:20 2021 +0100 libcpp: Fix _Pragma stringification [PR103165] As the testcase show, sometimes _Pragma is turned into CPP_PRAGMA .. CPP_PRAGMA_EOL tokens, even when it might still need to be stringized later on. We are then ICEing because we don't handle stringification of CPP_PRAGMA or CPP_PRAGMA_EOL, but trying to reconstruct the exact tokens with exact spacing after it has been lowered is very hard. So, instead this patch ensures we don't lower _Pragma during expand_arg calls, but only later when cpp_get_token_1 is called outside of expand_arg. 2021-11-22 Jakub Jelinek <ja...@redhat.com> Tobias Burnus <tob...@codesourcery.com> PR preprocessor/103165 libcpp/ * internal.h (struct lexer_state): Add ignore__Pragma field. * macro.c (builtin_macro): Don't interpret _Pragma if pfile->state.ignore__Pragma. (expand_arg): Temporarily set pfile->state.ignore__Pragma to 1. gcc/testsuite/ * c-c++-common/gomp/pragma-3.c: New test. * c-c++-common/gomp/pragma-4.c: New test. * c-c++-common/gomp/pragma-5.c: New test. Co-Authored-By: Tobias Burnus <tob...@codesourcery.com>
