http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46590
--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2010-11-21
19:48:41 UTC ---
Without -fno-ivopts:
i...@linux-fd1f:~/Krempel/Dep-c> time
~/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/f951 -ftime-report -O2
gener-4.f90
MAIN__ main
Analyzing compilation unit
{GC 44026k -> 25146k}Performing interprocedural optimizations
<*free_lang_data> <visibility> <early_local_cleanups> {GC 37683k -> 36011k}
<whole-program> <ipa-profile> <cp> <inline> <pure-const> <static-var>Assembling
functions:
MAIN__ {GC 54739k -> 37948k} {GC 61997k -> 51931k} {GC 77889k -> 51575k} {GC
75220k -> 51694k} {GC 89661k -> 77264k} {GC 500191k -> 73724k} {GC 106651k ->
72832k} main
Execution times (seconds)
garbage collection : 1.05 ( 0%) usr 0.03 ( 2%) sys 1.09 ( 0%) wall
0 kB ( 0%) ggc
callgraph construction: 0.06 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
2465 kB ( 0%) ggc
callgraph optimization: 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
2 kB ( 0%) ggc
ipa pure const : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
0 kB ( 0%) ggc
cfg construction : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
0 kB ( 0%) ggc
cfg cleanup : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.19 ( 0%) wall
344 kB ( 0%) ggc
CFG verifier : 1.35 ( 0%) usr 0.00 ( 0%) sys 1.35 ( 0%) wall
0 kB ( 0%) ggc
trivially dead code : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.19 ( 0%) wall
0 kB ( 0%) ggc
df scan insns : 0.17 ( 0%) usr 0.01 ( 1%) sys 0.18 ( 0%) wall
0 kB ( 0%) ggc
df multiple defs : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall
0 kB ( 0%) ggc
df reaching defs : 2.04 ( 1%) usr 0.01 ( 1%) sys 2.11 ( 1%) wall
0 kB ( 0%) ggc
df live regs : 1.02 ( 0%) usr 0.00 ( 0%) sys 1.06 ( 0%) wall
0 kB ( 0%) ggc
df live&initialized regs: 0.29 ( 0%) usr 0.01 ( 1%) sys 0.24 ( 0%) wall
0 kB ( 0%) ggc
df use-def / def-use chains: 0.12 ( 0%) usr 0.00 ( 0%) sys 0.11 ( 0%)
wall 0 kB ( 0%) ggc
df reg dead/unused notes: 0.43 ( 0%) usr 0.00 ( 0%) sys 0.43 ( 0%) wall
2460 kB ( 0%) ggc
register information : 0.10 ( 0%) usr 0.00 ( 0%) sys 0.11 ( 0%) wall
0 kB ( 0%) ggc
alias analysis : 0.30 ( 0%) usr 0.00 ( 0%) sys 0.33 ( 0%) wall
2816 kB ( 0%) ggc
alias stmt walking : 192.54 (71%) usr 0.22 (16%) sys 193.02 (71%) wall
7023 kB ( 1%) ggc
register scan : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
20 kB ( 0%) ggc
rebuild jump labels : 0.12 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall
0 kB ( 0%) ggc
parser : 0.43 ( 0%) usr 0.03 ( 2%) sys 0.47 ( 0%) wall
20481 kB ( 3%) ggc
inline heuristics : 0.09 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall
0 kB ( 0%) ggc
tree gimplify : 0.16 ( 0%) usr 0.02 ( 1%) sys 0.19 ( 0%) wall
17257 kB ( 3%) ggc
tree eh : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
tree CFG construction : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
5915 kB ( 1%) ggc
tree CFG cleanup : 1.06 ( 0%) usr 0.01 ( 1%) sys 1.07 ( 0%) wall
602 kB ( 0%) ggc
tree VRP : 0.40 ( 0%) usr 0.01 ( 1%) sys 0.37 ( 0%) wall
4754 kB ( 1%) ggc
tree copy propagation : 0.23 ( 0%) usr 0.00 ( 0%) sys 0.22 ( 0%) wall
75 kB ( 0%) ggc
tree find ref. vars : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
865 kB ( 0%) ggc
tree PTA : 2.24 ( 1%) usr 0.06 ( 4%) sys 2.30 ( 1%) wall
2253 kB ( 0%) ggc
tree PHI insertion : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
2203 kB ( 0%) ggc
tree SSA rewrite : 3.18 ( 1%) usr 0.00 ( 0%) sys 2.75 ( 1%) wall
6503 kB ( 1%) ggc
tree SSA other : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
32 kB ( 0%) ggc
tree SSA incremental : 6.64 ( 2%) usr 0.01 ( 1%) sys 6.73 ( 2%) wall
1372 kB ( 0%) ggc
tree operand scan : 0.17 ( 0%) usr 0.09 ( 7%) sys 0.28 ( 0%) wall
13590 kB ( 2%) ggc
dominator optimization: 0.38 ( 0%) usr 0.01 ( 1%) sys 0.40 ( 0%) wall
22013 kB ( 3%) ggc
tree SRA : 0.09 ( 0%) usr 0.02 ( 1%) sys 0.15 ( 0%) wall
11123 kB ( 2%) ggc
tree CCP : 0.45 ( 0%) usr 0.02 ( 1%) sys 0.43 ( 0%) wall
838 kB ( 0%) ggc
tree reassociation : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
559 kB ( 0%) ggc
tree PRE : 0.53 ( 0%) usr 0.04 ( 3%) sys 0.67 ( 0%) wall
7992 kB ( 1%) ggc
tree FRE : 0.34 ( 0%) usr 0.01 ( 1%) sys 0.42 ( 0%) wall
530 kB ( 0%) ggc
tree code sinking : 0.04 ( 0%) usr 0.01 ( 1%) sys 0.04 ( 0%) wall
360 kB ( 0%) ggc
tree linearize phis : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
tree forward propagate: 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
337 kB ( 0%) ggc
tree phiprop : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
tree conservative DCE : 0.08 ( 0%) usr 0.03 ( 2%) sys 0.05 ( 0%) wall
64 kB ( 0%) ggc
tree aggressive DCE : 0.23 ( 0%) usr 0.03 ( 2%) sys 0.27 ( 0%) wall
4227 kB ( 1%) ggc
tree buildin call DCE : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
tree DSE : 0.83 ( 0%) usr 0.00 ( 0%) sys 0.85 ( 0%) wall
0 kB ( 0%) ggc
tree loop bounds : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
821 kB ( 0%) ggc
tree loop invariant motion: 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%)
wall 0 kB ( 0%) ggc
tree canonical iv : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
1012 kB ( 0%) ggc
scev constant prop : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
174 kB ( 0%) ggc
complete unrolling : 1.00 ( 0%) usr 0.03 ( 2%) sys 0.86 ( 0%) wall
16838 kB ( 2%) ggc
tree iv optimization : 0.31 ( 0%) usr 0.00 ( 0%) sys 0.30 ( 0%) wall
11430 kB ( 2%) ggc
tree loop init : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
394 kB ( 0%) ggc
tree copy headers : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
613 kB ( 0%) ggc
tree SSA uncprop : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
tree rename SSA copies: 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
0 kB ( 0%) ggc
tree SSA verifier : 2.92 ( 1%) usr 0.00 ( 0%) sys 2.81 ( 1%) wall
0 kB ( 0%) ggc
tree STMT verifier : 5.27 ( 2%) usr 0.00 ( 0%) sys 5.41 ( 2%) wall
0 kB ( 0%) ggc
callgraph verifier : 0.18 ( 0%) usr 0.00 ( 0%) sys 0.19 ( 0%) wall
0 kB ( 0%) ggc
dominance frontiers : 6.46 ( 2%) usr 0.01 ( 1%) sys 7.35 ( 3%) wall
0 kB ( 0%) ggc
dominance computation : 5.33 ( 2%) usr 0.01 ( 1%) sys 5.06 ( 2%) wall
0 kB ( 0%) ggc
control dependences : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
out of ssa : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
0 kB ( 0%) ggc
expand vars : 0.09 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
726 kB ( 0%) ggc
expand : 0.44 ( 0%) usr 0.01 ( 1%) sys 0.45 ( 0%) wall
37845 kB ( 5%) ggc
post expand cleanups : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
1 kB ( 0%) ggc
forward prop : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.21 ( 0%) wall
1217 kB ( 0%) ggc
CSE : 0.97 ( 0%) usr 0.00 ( 0%) sys 0.97 ( 0%) wall
2127 kB ( 0%) ggc
dead code elimination : 0.14 ( 0%) usr 0.00 ( 0%) sys 0.14 ( 0%) wall
0 kB ( 0%) ggc
dead store elim1 : 0.23 ( 0%) usr 0.01 ( 1%) sys 0.23 ( 0%) wall
4659 kB ( 1%) ggc
dead store elim2 : 0.50 ( 0%) usr 0.00 ( 0%) sys 0.51 ( 0%) wall
5526 kB ( 1%) ggc
loop analysis : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
836 kB ( 0%) ggc
loop invariant motion : 5.21 ( 2%) usr 0.01 ( 1%) sys 5.23 ( 2%) wall
0 kB ( 0%) ggc
CPROP : 0.88 ( 0%) usr 0.03 ( 2%) sys 0.90 ( 0%) wall
13157 kB ( 2%) ggc
PRE : 10.87 ( 4%) usr 0.33 (24%) sys 11.24 ( 4%) wall
409967 kB (60%) ggc
CSE 2 : 0.53 ( 0%) usr 0.00 ( 0%) sys 0.52 ( 0%) wall
729 kB ( 0%) ggc
branch prediction : 0.14 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall
1542 kB ( 0%) ggc
combiner : 0.26 ( 0%) usr 0.00 ( 0%) sys 0.26 ( 0%) wall
1844 kB ( 0%) ggc
if-conversion : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
559 kB ( 0%) ggc
regmove : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall
0 kB ( 0%) ggc
integrated RA : 2.04 ( 1%) usr 0.21 (15%) sys 2.26 ( 1%) wall
5282 kB ( 1%) ggc
reload : 0.90 ( 0%) usr 0.00 ( 0%) sys 0.90 ( 0%) wall
13255 kB ( 2%) ggc
reload CSE regs : 1.28 ( 0%) usr 0.00 ( 0%) sys 1.28 ( 0%) wall
13060 kB ( 2%) ggc
zee : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
0 kB ( 0%) ggc
thread pro- & epilogue: 0.07 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
3 kB ( 0%) ggc
if-conversion 2 : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
279 kB ( 0%) ggc
combine stack adjustments: 0.02 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
peephole 2 : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
354 kB ( 0%) ggc
hard reg cprop : 0.33 ( 0%) usr 0.00 ( 0%) sys 0.34 ( 0%) wall
0 kB ( 0%) ggc
scheduling 2 : 1.84 ( 1%) usr 0.02 ( 1%) sys 1.85 ( 1%) wall
71 kB ( 0%) ggc
machine dep reorg : 0.15 ( 0%) usr 0.00 ( 0%) sys 0.15 ( 0%) wall
0 kB ( 0%) ggc
reorder blocks : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
891 kB ( 0%) ggc
final : 0.31 ( 0%) usr 0.01 ( 1%) sys 0.31 ( 0%) wall
0 kB ( 0%) ggc
rest of compilation : 0.39 ( 0%) usr 0.01 ( 1%) sys 0.38 ( 0%) wall
3151 kB ( 0%) ggc
remove unused locals : 0.43 ( 0%) usr 0.00 ( 0%) sys 0.38 ( 0%) wall
0 kB ( 0%) ggc
address taken : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
32 kB ( 0%) ggc
unaccounted todo : 0.07 ( 0%) usr 0.01 ( 1%) sys 0.14 ( 0%) wall
0 kB ( 0%) ggc
verify loop closed : 0.26 ( 0%) usr 0.00 ( 0%) sys 0.31 ( 0%) wall
0 kB ( 0%) ggc
verify RTL sharing : 1.55 ( 1%) usr 0.00 ( 0%) sys 1.54 ( 1%) wall
0 kB ( 0%) ggc
repair loop structures: 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
145 kB ( 0%) ggc
TOTAL : 270.29 1.38 272.32
688523 kB
Extra diagnostic checks enabled; compiler may run slowly.
Configure with --enable-checking=release to disable checks.
real 4m32.395s
user 4m30.299s
sys 0m1.406s
