------- Comment #22 from lucier at math dot purdue dot edu 2009-09-02 17:24 ------- The output of gprof on this example is at
http://www.math.purdue.edu/~lucier/bugzilla/11/gprof.out.gz Everything that takes more than a second is Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls s/call s/call name 10.73 4.45 4.45 15565 0.00 0.00 pop_scope 7.28 7.47 3.02 314259938 0.00 0.00 free_list 7.04 10.39 2.92 5575 0.00 0.00 dfs_enumerate_from 5.62 12.72 2.33 314988148 0.00 0.00 alloc_INSN_LIST 5.28 14.91 2.19 5292 0.00 0.00 get_loop_exit_edges 5.14 17.04 2.13 331244515 0.00 0.00 bitmap_set_bit 3.28 18.40 1.36 135329 0.00 0.00 sched_analyze_insn 3.09 19.68 1.28 29650 0.00 0.00 free_deps 2.75 20.82 1.14 21773210 0.00 0.00 bitmap_bit_p 2.35 21.80 0.98 14093247 0.00 0.00 dominated_by_p 1.99 22.62 0.83 5357385 0.00 0.00 bitmap_ior_into 1.88 23.40 0.78 199 0.00 0.00 inverted_post_order_compute 1.57 24.05 0.65 342 0.00 0.01 df_worklist_dataflow 1.37 24.62 0.57 51278357 0.00 0.00 decl_jump_unsafe 1.35 25.18 0.56 26181017 0.00 0.00 flow_bb_inside_loop_p 1.13 25.65 0.47 201 0.00 0.00 post_order_compute Nothing immediate jumps out at me. Brad -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24319
