https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69299
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #37364|0 |1 is obsolete| | --- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> --- Created attachment 37372 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37372&action=edit An updated patch This patch also changes LRA to skip bad MEM. Although there are no regressions on x86-64, there could be latent issues. Someone should exam IRA/LRA to see if it is OK.