https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94816
--- 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:5eae0ac76dcb6aac1d1d6c4edd8852e0035792e4 commit r10-8015-g5eae0ac76dcb6aac1d1d6c4edd8852e0035792e4 Author: David Malcolm <dmalc...@redhat.com> Date: Tue Apr 28 10:52:45 2020 -0400 analyzer: fix ICE copying struct [PR 94816] PR analyzer/94816 reports an ICE when attempting to copy a struct containing a field for which add_region_for_type for fails (on an OFFSET_TYPE): the region for the src field comes from make_region_for_unexpected_tree_code which gives it a NULL type, and then the copy calls add_region_for_type which unconditionally dereferences the NULL type. This patch fixes the ICE by checking for NULL types in add_region_for_type. gcc/analyzer/ChangeLog: PR analyzer/94816 * engine.cc (impl_region_model_context::on_unexpected_tree_code): Handle NULL tree. * region-model.cc (region_model::add_region_for_type): Handle NULL type. * region-model.h (test_region_model_context::on_unexpected_tree_code): Handle NULL tree. gcc/testsuite/ChangeLog: PR analyzer/94816 * g++.dg/analyzer/pr94816.C: New test.
