https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97862
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:ba009860aec4619f2424f5bdee812f14572dc3cc commit r11-5121-gba009860aec4619f2424f5bdee812f14572dc3cc Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Nov 18 09:40:45 2020 +0100 openmp: Fix ICE on non-rectangular loop with known 0 iterations The loops in the testcase are non-rectangular and have 0 iterations (the outer loop iterates, but the inner one never). In this case we just have the overall number of iterations computed (0), and don't have factor and other values computed. We never need to map logical iterations to the individual iterations in that case, and we were crashing during expansion of that code. 2020-11-18 Jakub Jelinek <ja...@redhat.com> PR middle-end/97862 * omp-expand.c (expand_omp_for_init_vars): Don't use the sqrt path if number of iterations is constant 0. * c-c++-common/gomp/pr97862.c: New test.
