------- Comment #12 from tbm at cyrius dot com 2007-10-27 18:53 ------- Same results without checking (actually, even slower - is that possible?):
(sid)[EMAIL PROTECTED]:~/tmp/gcc/gcc-4.3-20071027-r129674-no-checking/gcc$ ./xgcc -B. -ftime-report -O3 -c ~/slow.c Execution times (seconds) df live regs : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall 0 kB ( 0%) ggc df live&initialized regs: 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 0 kB ( 0%) ggc df reg dead/unused notes: 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 142 kB ( 1%) ggc register information : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall 0 kB ( 0%) ggc alias analysis : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall 224 kB ( 2%) ggc tree VRP : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.11 ( 0%) wall 132 kB ( 1%) ggc tree PRE : 0.37 ( 2%) usr 0.00 ( 3%) sys 0.64 ( 1%) wall 1052 kB ( 8%) ggc tree SSA to normal : 0.06 ( 0%) usr 0.00 ( 3%) sys 0.06 ( 0%) wall 1010 kB ( 8%) ggc expand : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall 1182 kB ( 9%) ggc CSE : 0.03 ( 0%) usr 0.00 ( 7%) sys 0.14 ( 0%) wall 1 kB ( 0%) ggc dead store elim2 : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall 267 kB ( 2%) ggc CPROP 2 : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 132 kB ( 1%) ggc bypass jumps : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 130 kB ( 1%) ggc CSE 2 : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.28 ( 1%) wall 0 kB ( 0%) ggc combiner : 0.81 ( 4%) usr 0.00 ( 3%) sys 1.77 ( 3%) wall 452 kB ( 4%) ggc if-conversion : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall 352 kB ( 3%) ggc regmove : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall 0 kB ( 0%) ggc scheduling : 1.34 ( 6%) usr 0.00 ( 0%) sys 3.53 ( 7%) wall 194 kB ( 2%) ggc local alloc : 0.14 ( 1%) usr 0.00 ( 0%) sys 0.25 ( 0%) wall 50 kB ( 0%) ggc global alloc : 0.53 ( 2%) usr 0.00 ( 3%) sys 0.70 ( 1%) wall 2537 kB (20%) ggc reload CSE regs : 0.17 ( 1%) usr 0.00 ( 0%) sys 0.24 ( 0%) wall 584 kB ( 5%) ggc load CSE after reload : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall 0 kB ( 0%) ggc rename registers : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall 0 kB ( 0%) ggc scheduling 2 : 18.96 (83%) usr 0.02 (66%) sys 43.24 (84%) wall 1970 kB (15%) ggc final : 0.02 ( 0%) usr 0.00 ( 3%) sys 0.12 ( 0%) wall 0 kB ( 0%) ggc TOTAL : 22.83 0.03 51.54 12913 kB -- tbm at cyrius dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |UNCONFIRMED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33922