http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56434
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |x86_64-*-*, i?86-*-* Status|UNCONFIRMED |NEW Keywords| |wrong-code Last reconfirmed| |2013-02-25 Component|c |rtl-optimization Ever Confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-25 15:19:17 UTC --- We have introduced MALLOC_ABI_ALIGNMENT for this, the calls.c:expand_call use should be fixed to use that I think. Not sure what makes use of this reg-note, but it's a possible wrong-code issue (at least since AVX on x86). Confirmed.