------- Comment #5 from rguenth at gcc dot gnu dot org 2006-03-23 21:03 ------- Now, with -O -fno-tree-salias we have
tree copy propagation : 4.30 ( 1%) usr 0.06 ( 0%) sys 4.48 ( 1%) wall 1076 kB ( 0%) ggc tree SSA rewrite : 280.55 (76%) usr 0.44 ( 3%) sys 287.70 (69%) wall 8254 kB ( 3%) ggc tree SSA incremental : 25.32 ( 7%) usr 0.24 ( 2%) sys 26.91 ( 6%) wall 4307 kB ( 1%) ggc TOTAL : 366.85 15.64 419.93 305294 kB eh...!? now it would be interesting to know what pass caused this. CPU: P4 / Xeon, speed 2799.93 MHz (estimated) Counted UOPS_RETIRED events (retired uops) with a unit mask of 0x01 (count marked uops which are non-bogus) count 45000 samples % image name symbol name 6902 67.2055 cc1plus rewrite_update_phi_arguments 438 4.2648 cc1plus update_ssa 314 3.0574 cc1plus rewrite_update_init_block 200 1.9474 cc1plus walk_dominator_tree 149 1.4508 cc1plus compute_global_livein 138 1.3437 cc1plus next_dom_son 121 1.1782 cc1plus bitmap_bit_p 111 1.0808 cc1plus delete_update_ssa 108 1.0516 no-vmlinux (no symbols) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26830
