------- Comment #16 from rguenth at gcc dot gnu dot org 2006-03-24 16:26 ------- With -O1 -fno-tree-ch we get (on ia64 again):
tree copy propagation : 132.88 (22%) usr 0.07 ( 1%) sys 132.94 (22%) wall 5037 kB ( 0%) ggc tree store copy prop : 27.43 ( 5%) usr 0.01 ( 0%) sys 27.44 ( 5%) wall 1090 kB ( 0%) ggc tree PHI insertion : 79.40 (13%) usr 1.74 (31%) sys 81.14 (13%) wall 1512507 kB (77%) ggc tree SSA rewrite : 94.23 (16%) usr 0.09 ( 2%) sys 94.32 (16%) wall 22257 kB ( 1%) ggc dominator optimization: 66.17 (11%) usr 0.07 ( 1%) sys 66.24 (11%) wall 18901 kB ( 1%) ggc tree loop init : 29.35 ( 5%) usr 0.00 ( 0%) sys 29.35 ( 5%) wall 9 kB ( 0%) ggc tree SSA uncprop : 27.61 ( 5%) usr 0.00 ( 0%) sys 27.61 ( 5%) wall 0 kB ( 0%) ggc expand : 31.99 ( 5%) usr 0.04 ( 1%) sys 32.04 ( 5%) wall 49360 kB ( 3%) ggc TOTAL : 599.15 5.55 604.92 1964166 kB so, much more mixed results, but tree copy propagation now being the worst offender. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26830
