Hi,
> Note that there is probably one or two GCC options that can be
> fine-tuned to avoid the explosion instead of just -O1 vs. -O2. If you
> have an affected machine (F18) you can help by compiling translate.c
> with -O2 -ftime-report. I planned to do this today, but I first need to
> install a F18 virtual machine.
[x] done, see attachment
cheers,
Gerd
CC i386-softmmu/target-i386/translate.o
Execution times (seconds)
phase setup : 0.17 (100%) usr 0.06 (100%) sys 1.20 (98%)
wall 2527 kB (99%) ggc
phase finalize : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 2%) wall
0 kB ( 0%) ggc
TOTAL : 0.17 0.06 1.23
2543 kB
Execution times (seconds)
phase setup : 0.00 ( 0%) usr 0.01 ( 0%) sys 0.11 ( 0%) wall
1077 kB ( 0%) ggc
phase parsing : 0.22 ( 1%) usr 0.41 ( 4%) sys 0.71 ( 1%) wall
13597 kB ( 1%) ggc
phase cgraph : 39.98 (99%) usr 9.43 (96%) sys 122.41 (99%) wall
1680634 kB (99%) ggc
phase generate : 39.98 (99%) usr 9.43 (96%) sys 122.42 (99%) wall
1680635 kB (99%) ggc
phase finalize : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
0 kB ( 0%) ggc
garbage collection : 0.31 ( 1%) usr 0.37 ( 4%) sys 29.45 (24%) wall
0 kB ( 0%) ggc
callgraph construction : 0.05 ( 0%) usr 0.04 ( 0%) sys 0.05 ( 0%) wall
6753 kB ( 0%) ggc
callgraph optimization : 0.00 ( 0%) usr 0.01 ( 0%) sys 0.04 ( 0%) wall
1401 kB ( 0%) ggc
varpool construction : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
282 kB ( 0%) ggc
ipa cp : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
384 kB ( 0%) ggc
ipa reference : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
ipa pure const : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
0 kB ( 0%) ggc
ipa SRA : 0.01 ( 0%) usr 0.01 ( 0%) sys 0.06 ( 0%) wall
3613 kB ( 0%) ggc
ipa free lang data : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
0 kB ( 0%) ggc
cfg construction : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
488 kB ( 0%) ggc
cfg cleanup : 0.36 ( 1%) usr 0.01 ( 0%) sys 0.74 ( 1%) wall
1440 kB ( 0%) ggc
trivially dead code : 0.17 ( 0%) usr 0.00 ( 0%) sys 0.17 ( 0%) wall
0 kB ( 0%) ggc
df scan insns : 0.09 ( 0%) usr 0.01 ( 0%) sys 0.08 ( 0%) wall
38 kB ( 0%) ggc
df multiple defs : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
0 kB ( 0%) ggc
df reaching defs : 0.10 ( 0%) usr 0.01 ( 0%) sys 0.30 ( 0%) wall
0 kB ( 0%) ggc
df live regs : 0.97 ( 2%) usr 0.06 ( 1%) sys 2.96 ( 2%) wall
0 kB ( 0%) ggc
df live&initialized regs: 0.46 ( 1%) usr 0.02 ( 0%) sys 0.69 ( 1%) wall
0 kB ( 0%) ggc
df use-def / def-use chains: 0.06 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%)
wall 0 kB ( 0%) ggc
df reg dead/unused notes: 0.31 ( 1%) usr 0.02 ( 0%) sys 0.43 ( 0%) wall
2796 kB ( 0%) ggc
register information : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.10 ( 0%) wall
0 kB ( 0%) ggc
alias analysis : 0.22 ( 1%) usr 0.02 ( 0%) sys 0.34 ( 0%) wall
7380 kB ( 0%) ggc
alias stmt walking : 0.14 ( 0%) usr 0.07 ( 1%) sys 0.27 ( 0%) wall
2333 kB ( 0%) ggc
register scan : 0.03 ( 0%) usr 0.01 ( 0%) sys 0.03 ( 0%) wall
3 kB ( 0%) ggc
rebuild jump labels : 0.10 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
0 kB ( 0%) ggc
preprocessing : 0.07 ( 0%) usr 0.15 ( 2%) sys 0.16 ( 0%) wall
1496 kB ( 0%) ggc
lexical analysis : 0.01 ( 0%) usr 0.13 ( 1%) sys 0.16 ( 0%) wall
0 kB ( 0%) ggc
parser (global) : 0.03 ( 0%) usr 0.04 ( 0%) sys 0.11 ( 0%) wall
6890 kB ( 0%) ggc
parser struct body : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
486 kB ( 0%) ggc
parser enumerator list : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
352 kB ( 0%) ggc
parser function body : 0.04 ( 0%) usr 0.02 ( 0%) sys 0.10 ( 0%) wall
1263 kB ( 0%) ggc
parser inl. func. body : 0.07 ( 0%) usr 0.07 ( 1%) sys 0.13 ( 0%) wall
3107 kB ( 0%) ggc
inline heuristics : 0.11 ( 0%) usr 0.02 ( 0%) sys 0.16 ( 0%) wall
3669 kB ( 0%) ggc
integration : 0.34 ( 1%) usr 0.31 ( 3%) sys 0.56 ( 0%) wall
41530 kB ( 2%) ggc
tree gimplify : 0.04 ( 0%) usr 0.02 ( 0%) sys 0.15 ( 0%) wall
3964 kB ( 0%) ggc
tree eh : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
2 kB ( 0%) ggc
tree CFG construction : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
1582 kB ( 0%) ggc
tree CFG cleanup : 0.14 ( 0%) usr 0.01 ( 0%) sys 0.05 ( 0%) wall
456 kB ( 0%) ggc
tree tail merge : 0.04 ( 0%) usr 0.01 ( 0%) sys 0.03 ( 0%) wall
6 kB ( 0%) ggc
tree VRP : 0.31 ( 1%) usr 0.02 ( 0%) sys 0.40 ( 0%) wall
6708 kB ( 0%) ggc
tree copy propagation : 0.12 ( 0%) usr 0.01 ( 0%) sys 0.18 ( 0%) wall
937 kB ( 0%) ggc
tree find ref. vars : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
127 kB ( 0%) ggc
tree PTA : 0.52 ( 1%) usr 0.28 ( 3%) sys 0.86 ( 1%) wall
2343 kB ( 0%) ggc
tree SSA rewrite : 0.05 ( 0%) usr 0.03 ( 0%) sys 0.14 ( 0%) wall
5755 kB ( 0%) ggc
tree SSA other : 0.01 ( 0%) usr 0.01 ( 0%) sys 0.02 ( 0%) wall
127 kB ( 0%) ggc
tree SSA incremental : 0.13 ( 0%) usr 0.02 ( 0%) sys 0.12 ( 0%) wall
680 kB ( 0%) ggc
tree operand scan : 0.19 ( 0%) usr 0.13 ( 1%) sys 0.37 ( 0%) wall
22560 kB ( 1%) ggc
dominator optimization : 0.12 ( 0%) usr 0.01 ( 0%) sys 0.14 ( 0%) wall
7169 kB ( 0%) ggc
tree CCP : 0.17 ( 0%) usr 0.00 ( 0%) sys 0.15 ( 0%) wall
670 kB ( 0%) ggc
tree PHI const/copy prop: 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
tree reassociation : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
155 kB ( 0%) ggc
tree PRE : 0.18 ( 0%) usr 0.04 ( 0%) sys 0.26 ( 0%) wall
5335 kB ( 0%) ggc
tree FRE : 0.42 ( 1%) usr 0.10 ( 1%) sys 0.51 ( 0%) wall
12668 kB ( 1%) ggc
tree code sinking : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
77 kB ( 0%) ggc
tree linearize phis : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
2 kB ( 0%) ggc
tree forward propagate : 0.06 ( 0%) usr 0.02 ( 0%) sys 0.04 ( 0%) wall
2240 kB ( 0%) ggc
tree conservative DCE : 0.08 ( 0%) usr 0.05 ( 1%) sys 0.12 ( 0%) wall
4 kB ( 0%) ggc
tree aggressive DCE : 0.04 ( 0%) usr 0.03 ( 0%) sys 0.10 ( 0%) wall
1656 kB ( 0%) ggc
tree buildin call DCE : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
tree DSE : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
0 kB ( 0%) ggc
tree loop invariant motion: 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%)
wall 1 kB ( 0%) ggc
complete unrolling : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
182 kB ( 0%) ggc
tree iv optimization : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
105 kB ( 0%) ggc
tree loop init : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
149 kB ( 0%) ggc
tree SSA uncprop : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
tree rename SSA copies : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
0 kB ( 0%) ggc
tree STMT verifier : 0.00 ( 0%) usr 0.01 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
dominance computation : 0.11 ( 0%) usr 0.00 ( 0%) sys 0.10 ( 0%) wall
0 kB ( 0%) ggc
out of ssa : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
35 kB ( 0%) ggc
expand vars : 0.07 ( 0%) usr 0.01 ( 0%) sys 0.07 ( 0%) wall
3675 kB ( 0%) ggc
expand : 0.26 ( 1%) usr 0.07 ( 1%) sys 0.32 ( 0%) wall
23890 kB ( 1%) ggc
post expand cleanups : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
1633 kB ( 0%) ggc
varconst : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
jump : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
forward prop : 0.13 ( 0%) usr 0.03 ( 0%) sys 0.16 ( 0%) wall
2816 kB ( 0%) ggc
CSE : 0.38 ( 1%) usr 0.03 ( 0%) sys 0.62 ( 1%) wall
2433 kB ( 0%) ggc
dead code elimination : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
0 kB ( 0%) ggc
dead store elim1 : 0.15 ( 0%) usr 0.01 ( 0%) sys 0.19 ( 0%) wall
2431 kB ( 0%) ggc
dead store elim2 : 0.12 ( 0%) usr 0.00 ( 0%) sys 0.15 ( 0%) wall
1876 kB ( 0%) ggc
loop analysis : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
80 kB ( 0%) ggc
loop invariant motion : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.16 ( 0%) wall
1 kB ( 0%) ggc
CPROP : 0.38 ( 1%) usr 0.03 ( 0%) sys 0.58 ( 0%) wall
2579 kB ( 0%) ggc
PRE : 26.78 (67%) usr 7.04 (71%) sys 72.36 (59%) wall
1444332 kB (85%) ggc
CSE 2 : 0.20 ( 0%) usr 0.01 ( 0%) sys 0.18 ( 0%) wall
653 kB ( 0%) ggc
branch prediction : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
319 kB ( 0%) ggc
combiner : 0.35 ( 1%) usr 0.01 ( 0%) sys 0.50 ( 0%) wall
6538 kB ( 0%) ggc
if-conversion : 0.30 ( 1%) usr 0.00 ( 0%) sys 0.65 ( 1%) wall
496 kB ( 0%) ggc
regmove : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall
224 kB ( 0%) ggc
integrated RA : 1.03 ( 3%) usr 0.02 ( 0%) sys 1.15 ( 1%) wall
26022 kB ( 2%) ggc
reload : 0.51 ( 1%) usr 0.00 ( 0%) sys 0.58 ( 0%) wall
1732 kB ( 0%) ggc
reload CSE regs : 0.40 ( 1%) usr 0.00 ( 0%) sys 0.74 ( 1%) wall
3965 kB ( 0%) ggc
ree : 0.03 ( 0%) usr 0.01 ( 0%) sys 0.05 ( 0%) wall
162 kB ( 0%) ggc
thread pro- & epilogue : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
822 kB ( 0%) ggc
if-conversion 2 : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
84 kB ( 0%) ggc
combine stack adjustments: 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
peephole 2 : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
228 kB ( 0%) ggc
hard reg cprop : 0.05 ( 0%) usr 0.01 ( 0%) sys 0.10 ( 0%) wall
9 kB ( 0%) ggc
scheduling 2 : 0.47 ( 1%) usr 0.29 ( 3%) sys 1.15 ( 1%) wall
328 kB ( 0%) ggc
machine dep reorg : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
44 kB ( 0%) ggc
reorder blocks : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
867 kB ( 0%) ggc
final : 0.20 ( 0%) usr 0.02 ( 0%) sys 0.33 ( 0%) wall
2060 kB ( 0%) ggc
symout : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
rest of compilation : 0.26 ( 1%) usr 0.02 ( 0%) sys 0.54 ( 0%) wall
1438 kB ( 0%) ggc
remove unused locals : 0.36 ( 1%) usr 0.00 ( 0%) sys 0.41 ( 0%) wall
0 kB ( 0%) ggc
address taken : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall
0 kB ( 0%) ggc
unaccounted todo : 0.11 ( 0%) usr 0.03 ( 0%) sys 0.12 ( 0%) wall
0 kB ( 0%) ggc
rebuild frequencies : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
1 kB ( 0%) ggc
repair loop structures : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
23 kB ( 0%) ggc
TOTAL : 40.21 9.85 123.33
1695325 kB
