https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93777
--- Comment #5 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:4f40164a9322105012e9070eebd57ba80c69b873 commit r10-6696-g4f40164a9322105012e9070eebd57ba80c69b873 Author: David Malcolm <dmalc...@redhat.com> Date: Mon Feb 17 17:37:52 2020 -0500 analyzer: fix ICE on failed casts [PR 93777] PR analyzer/93777 reports ICEs in a Fortran and C++ case involving a cast of a NULL pointer to a REFERENCE_TYPE. In both cases the call to build_cast fails and returns a NULL type, but region_model::maybe_cast_1 asserts that a non-NULL type was returned. This patch fixes the ICEs by converting the assertion to a conditional. gcc/analyzer/ChangeLog: PR analyzer/93777 * region-model.cc (region_model::maybe_cast_1): Replace assertion that build_cast returns non-NULL with a conditional, falling through to the logic which returns a new unknown value of the desired type if it fails. gcc/testsuite/ChangeLog: PR analyzer/93777 * g++.dg/analyzer/pr93777.C: New test. * gfortran.dg/analyzer/pr93777.f90: New test.