https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63939
--- Comment #25 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- (In reply to howarth from comment #22) > At r217817 on x86_64-apple-darwin14, without llvm-symbolizer in the path but > with https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63534#c50 applied, I still > see failures for... > FAIL: c-c++-common/asan/null-deref-1.c -O1 output pattern test, is > ASAN:SIGSEGV I don't see that one (even at -m32, without llvm-symbolizer, and with the patch you mention), but then my tree is not uniform anymore (revision range 217694:217817M). So it probably appeared recently. It appears related to optimization, as apparently you don't see it at -O0. If so, please file a separate PR, as this appears to be a regression and may be a real issue (and not only a pattern adjustment).
