https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106225
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by David Malcolm <dmalc...@gcc.gnu.org>: https://gcc.gnu.org/g:897b3b31f0a94b8bac59c6061655c6a32646d0a0 commit r13-1562-g897b3b31f0a94b8bac59c6061655c6a32646d0a0 Author: David Malcolm <dmalc...@redhat.com> Date: Thu Jul 7 15:50:26 2022 -0400 analyzer: fix false positives from -Wanalyzer-tainted-divisor [PR106225] gcc/analyzer/ChangeLog: PR analyzer/106225 * sm-taint.cc (taint_state_machine::on_stmt): Move handling of assignments from division to... (taint_state_machine::check_for_tainted_divisor): ...this new function. Reject warning when the divisor is known to be non-zero. * sm.cc: Include "analyzer/program-state.h". (sm_context::get_old_region_model): New. * sm.h (sm_context::get_old_region_model): New decl. gcc/testsuite/ChangeLog: PR analyzer/106225 * gcc.dg/analyzer/taint-divisor-1.c: Add test coverage for various correct and incorrect checks against zero. Signed-off-by: David Malcolm <dmalc...@redhat.com>
