[Bug rtl-optimization/54472] ICE (spill_failure): unable to find a register to spill in class 'AREG' with -O -fschedule-insns -fselective-scheduling

[ubizjak at gmail dot com]

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?