------- Comment #7 from rguenth at gcc dot gnu dot org 2010-07-26 11:00 -------
Invalid MEMs in debug-insns (invalid as in not folded). Why does the
scheduler query the alias oracle about them?
(debug_insn 49 48 50 7 t.cc:22 (var_location:DI D#3 (mem/s/f/j:DI (plus:DI
(reg/f:DI 54 virtual-stack-vars)
(const_int -32 [0xffffffffffffffe0])) [0 MEM[(struct vector
*)&qq.seq]._M_finish+0 S8 A256])) -1 (nil))
CCP does
- D.2433_12 = &qq.seq;
- # DEBUG this => D.2433_12
- # DEBUG D#3 => MEM[(struct vector *)D.2433_12]._M_finish
- # DEBUG this => D.2433_12
+ # DEBUG this => &qq.seq
+ # DEBUG D#3 => MEM[(struct vector *)&qq.seq]._M_finish
+ # DEBUG this => &qq.seq
I have a patch to fix it there.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45056
