https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98791
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Andre Simoes Dias Vieira <avie...@gcc.gnu.org>: https://gcc.gnu.org/g:9b0bbe19afb2a6800e95f61cc57206e069a400d6 commit r10-9443-g9b0bbe19afb2a6800e95f61cc57206e069a400d6 Author: Andre Vieira <andre.simoesdiasvie...@arm.com> Date: Mon Feb 22 13:41:46 2021 +0000 ira: Make sure allocno copies are ordered [PR98791] gcc/ChangeLog: 2021-02-22 Andre Vieira <andre.simoesdiasvie...@arm.com> PR rtl-optimization/98791 * ira-conflicts.c (process_regs_for_copy): Don't create allocno copies for unordered modes. gcc/testsuite/ChangeLog: 2021-02-22 Andre Vieira <andre.simoesdiasvie...@arm.com> PR rtl-optimization/98791 * gcc.target/aarch64/sve/pr98791.c: New test. (cherry picked from commit 4c31a3a6d31b6214ea774d403bf8ab7ebe1ea862)