https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99007
--- Comment #5 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:bd0e37f68a3aed944df4eb739a0734bb87153749 commit r11-7167-gbd0e37f68a3aed944df4eb739a0734bb87153749 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Feb 10 10:34:58 2021 +0100 openmp: Temporarily disable into_ssa when gimplifying OpenMP reduction clauses [PR99007] gimplify_scan_omp_clauses was already calling gimplify_expr with false as last argument to make sure it is not an SSA_NAME, but as the testcases show, that is not enough, SSA_NAME temporaries created during that gimplification can be reused too and we can't allow SSA_NAMEs to be used across OpenMP region boundaries, as we can only firstprivatize decls. Fixed by temporarily disabling into_ssa. 2021-02-10 Jakub Jelinek <ja...@redhat.com> PR middle-end/99007 * gimplify.c (gimplify_scan_omp_clauses): For MEM_REF on reductions, temporarily disable gimplify_ctxp->into_ssa around gimplify_expr calls. * g++.dg/gomp/pr99007.C: New test. * gcc.dg/gomp/pr99007-1.c: New test. * gcc.dg/gomp/pr99007-2.c: New test. * gcc.dg/gomp/pr99007-3.c: New test.
