------- Comment #13 from rguenth at gcc dot gnu dot org 2010-07-07 08:51 ------- It's a scheduling issue (and thus an alias issue). -fno-schedule-insns2 fixes the problem. We mis-schedule the unrolled part.
-- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rguenth at gcc dot gnu dot | |org Component|middle-end |rtl-optimization Keywords| |alias, wrong-code Summary|[4.6 regression] FAIL: |[4.6 regression] RTL loop |gcc.dg/pr39794.c |unrolling and scheduling | |cause FAIL: gcc.dg/pr39794.c http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44838