http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56885
Igor Zamyatin <izamyatin at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |izamyatin at gmail dot com
--- Comment #3 from Igor Zamyatin <izamyatin at gmail dot com> 2013-04-09
06:58:22 UTC ---
(In reply to comment #1)
> Confirmed with trunk/4.8, but with 4.6/4.7 I see:
>
> x.c:20:1: error: unable to find a register to spill in class ‘DIREG’
> x.c:20:1: error: this is the insn:
> (insn 33 36 35 5 (parallel [
> (set (reg:DI 2 cx [80])
> (const_int 0 [0]))
> (set (reg/f:DI 0 ax [78])
> (plus:DI (reg/f:DI 1 dx [77])
> (reg:DI 2 cx [80])))
> (set (mem:BLK (reg/f:DI 1 dx [77]) [0 S15 A8])
> (const_int 0 [0]))
> (use (reg:QI 6 bp [81]))
> (use (reg:DI 2 cx [80]))
> ]) x.c:16 884 {*rep_stosqi}
> (expr_list:REG_DEAD (reg/f:DI 1 dx [77])
> (expr_list:REG_UNUSED (reg:DI 2 cx [80])
> (expr_list:REG_UNUSED (reg/f:DI 0 ax [78])
> (nil)))))
> x.c:20: confused by earlier errors, bailing out
The same error on 4.9 when IRA is turned on
