https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89376
--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> --- Author: vries Date: Sun Jun 16 07:47:15 2019 New Revision: 272338 URL: https://gcc.gnu.org/viewcvs?rev=272338&root=gcc&view=rev Log: [openacc, parloops] Fix SIGSEGV in oacc_entry_exit_ok_1 When compiling the test-case with r268755, we run into a SIGSEGV in oacc_entry_exit_ok_1 when trying to dereference a NULL red: ... struct reduction_info *red; red = reduction_phi (reduction_list, use_stmt); tree val = PHI_RESULT (red->keep_res); ... Fix this by handling ref == NULL. Bootstrapped and reg-tested on x86_64. Build and reg-tested on x86_64 with nvptx accelerator. 2019-06-16 Tom de Vries <tdevr...@suse.de> PR tree-optimization/89376 * tree-parloops.c (oacc_entry_exit_ok_1): Handle red == NULL. * testsuite/libgomp.oacc-c-c++-common/pr89376.c: New test. Added: trunk/libgomp/testsuite/libgomp.oacc-c-c++-common/pr89376.c Modified: trunk/gcc/ChangeLog trunk/gcc/tree-parloops.c trunk/libgomp/ChangeLog