http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54472
--- Comment #2 from Uros Bizjak <ubizjak at gmail dot com> 2012-09-04 14:48:02 UTC --- For some reason, -fselective-scheduling is moving (insn 19 16 22 2 (use (reg/i:SI 0 ax)) testcase.c:6 -1 (nil)) around. This insn marks function return, so IMO should be at the function exit all the time. -fschedule-insns (without -fselective-scheduling) leaves the insn at the function exit. Is it OK to move this marker around?