------- Comment #2 from burnus at gcc dot gnu dot org 2009-01-14 18:45 ------- The culprit is -floop-block (which is already enabled by default in the graphite branch with -O2). Using only -floop-interchange -floop-strip-mine I get a run time inbetween (16.5s, single run). Using only -fgraphite-identity I also get ~16.5s.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38846
