------- Comment #2 from rguenth at gcc dot gnu dot org 2007-11-01 11:36 ------- Note I didn't experience any sixtrack regression (-O3 and -O3 -funroll-loops -ffast-math) on Opteron. This is very likely a partitioning issue, as the --param max-aliased-vops is different for -O2 vs. -O3 and sixtrack likely "lived on the edge" with the -O2 setting.
The patch mainly changed which variables with the same partitioning score are considered for partitioning. So if at all, this is a partitioning/scoring bug. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC|rguenther at suse dot de |rguenth at gcc dot gnu dot | |org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33966