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[Bug rtl-optimization/54472] ICE (spill_failure): unable to find a register to spill in class 'AREG' with -O -fschedule-insns -fselective-scheduling
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 04 Oct 2012 09:29:15 +0000
- Subject: [Bug rtl-optimization/54472] ICE (spill_failure): unable to find a register to spill in class 'AREG' with -O -fschedule-insns -fselective-scheduling
- Auto-submitted: auto-generated
- References: <bug-54472-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54472
--- Comment #4 from Uros Bizjak <ubizjak at gmail dot com> 2012-10-04 09:29:15 UTC ---
(In reply to comment #3)
> > 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?
>
> I will take a look but I'm out of office until Friday at least (maybe Monday).
Any progress on this?