https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109239
--- Comment #1 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:0c652ebbf79bd168766097f3ac4c1b3b79d68a43 commit r13-6800-g0c652ebbf79bd168766097f3ac4c1b3b79d68a43 Author: David Malcolm <dmalc...@redhat.com> Date: Wed Mar 22 08:40:34 2023 -0400 analyzer: fix false +ves from -Wanalyzer-deref-before-check due to inlining [PR109239] The patch has this effect on my integration tests of -fanalyzer: Comparison: GOOD: 129 (17.70% -> 17.92%) BAD: 600 -> 591 (-9) which is purely due to improvements to -Wanalyzer-deref-before-check on the Linux kernel: -Wanalyzer-deref-before-check: GOOD: 1 (4.55% -> 7.69%) BAD: 21 -> 12 (-9) Known false positives: 16 -> 10 (-6) linux-5.10.162: 7 -> 1 (-6) Suspected false positives: 3 -> 0 (-3) linux-5.10.162: 3 -> 0 (-3) gcc/analyzer/ChangeLog: PR analyzer/109239 * program-point.cc: Include "analyzer/inlining-iterator.h". (program_point::effectively_intraprocedural_p): New function. * program-point.h (program_point::effectively_intraprocedural_p): New decl. * sm-malloc.cc (deref_before_check::emit): Use it when rejecting interprocedural cases, so that we reject interprocedural cases that have become intraprocedural due to inlining. gcc/testsuite/ChangeLog: PR analyzer/109239 * gcc.dg/analyzer/deref-before-check-pr109239-linux-bus.c: New test. Signed-off-by: David Malcolm <dmalc...@redhat.com>
