https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67756
--- Comment #10 from ktkachov at gcc dot gnu.org --- The ICE started with: Author: vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> Date: Tue Sep 1 19:37:52 2015 +0000 2015-09-01 Vladimir Makarov <vmaka...@redhat.com> PR target/61578 * lra-lives.c (process_bb_lives): Process move pseudos with the same value for copies and preferences * lra-constraints.c (match_reload): Create match reload pseudo with the same value from single dying input pseudo. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227382 138bc75d-0d04-0410-961f-82ee72b054a4 So it seems like an LRA issue