https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94077
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Kewen Lin <li...@gcc.gnu.org>: https://gcc.gnu.org/g:ffb32ba2fb79d90be4be9a59ef0336d3404ff538 commit r9-8806-gffb32ba2fb79d90be4be9a59ef0336d3404ff538 Author: Kewen Lin <li...@linux.ibm.com> Date: Wed Aug 12 04:19:16 2020 -0500 testsuite: Add -fno-common to pr82374.c [PR94077] As the PR comments show, the case gcc.dg/gomp/pr82374.c fails on Power7 since gcc8. But it passes from gcc10. By looking into the difference, it's due to that gcc10 sets -fno-common as default, which makes vectorizer force the alignment and be able to use aligned vector load/store on those targets which doesn't support unaligned vector load/store (here it's Power7). As Jakub suggested in the PR, this patch is to append -fno-common into dg-options. Verified with gcc8/gcc9 releases on ppc64-redhat-linux (Power7). gcc/testsuite/ChangeLog: PR testsuite/94077 * gcc.dg/gomp/pr82374.c: Add option -fno-common.
