https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106449
--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:681c73db9bd156f9b65a73ccc6c4a0a697fe70d6 commit r12-8645-g681c73db9bd156f9b65a73ccc6c4a0a697fe70d6 Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Jul 29 09:49:11 2022 +0200 openmp: Fix up handling of non-rectangular simd loops with pointer type iterators [PR106449] There were 2 issues visible on this new testcase, one that we didn't have special POINTER_TYPE_P handling in a few spots of expand_omp_simd - for pointers we need to use POINTER_PLUS_EXPR and need to have the non-pointer part in sizetype, for non-rectangular loop on the other side we can rely on multiplication factor 1, pointers can't be multiplied, without those changes we'd ICE. The other issue was that we put n2 expression directly into a comparison in a condition and regimplified that, for the &a[512] case that and with gimplification being destructed that unfortunately meant modification of original fd->loops[?].n2. Fixed by unsharing the expression. This was causing a runtime failure on the testcase. 2022-07-29 Jakub Jelinek <ja...@redhat.com> PR middle-end/106449 * omp-expand.cc (expand_omp_simd): Fix up handling of pointer iterators in non-rectangular simd loops. Unshare fd->loops[i].n2 or n2 before regimplifying it inside of a condition. * testsuite/libgomp.c-c++-common/pr106449.c: New test. (cherry picked from commit 97d32048c04e9787fccadc4bae1c042754503e34)
