http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38474
--- Comment #60 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch>
2012-06-15 15:26:20 UTC ---
(In reply to comment #59)
> There should be no compile performance problems in expand anymore.
> The alias stmt walker as used from IPA remains a problem, though.
Thanks... expand is now indeed essentially gone from the timing report.
> gfortran -ftime-report -ffree-line-length-512 -g -c testcase.f90
Execution times (seconds)
phase setup : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
243 kB ( 0%) ggc
phase parsing : 3.57 ( 9%) usr 0.06 ( 7%) sys 3.63 ( 9%) wall
47592 kB ( 7%) ggc
phase cgraph : 36.49 (91%) usr 0.86 (93%) sys 37.34 (91%) wall
647436 kB (93%) ggc
phase generate : 36.50 (91%) usr 0.86 (93%) sys 37.36 (91%) wall
647838 kB (93%) ggc
garbage collection : 1.04 ( 3%) usr 0.00 ( 0%) sys 1.04 ( 3%) wall
0 kB ( 0%) ggc
callgraph construction : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.19 ( 0%) wall
15909 kB ( 2%) ggc
callgraph optimization : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
201 kB ( 0%) ggc
cfg construction : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall
7 kB ( 0%) ggc
cfg cleanup : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
0 kB ( 0%) ggc
CFG verifier : 1.26 ( 3%) usr 0.00 ( 0%) sys 1.25 ( 3%) wall
0 kB ( 0%) ggc
trivially dead code : 0.43 ( 1%) usr 0.00 ( 0%) sys 0.41 ( 1%) wall
0 kB ( 0%) ggc
df scan insns : 0.98 ( 2%) usr 0.24 (26%) sys 1.24 ( 3%) wall
11 kB ( 0%) ggc
df live regs : 0.58 ( 1%) usr 0.01 ( 1%) sys 0.57 ( 1%) wall
0 kB ( 0%) ggc
df reg dead/unused notes: 0.43 ( 1%) usr 0.01 ( 1%) sys 0.45 ( 1%) wall
19416 kB ( 3%) ggc
register information : 0.18 ( 0%) usr 0.00 ( 0%) sys 0.18 ( 0%) wall
0 kB ( 0%) ggc
alias analysis : 0.15 ( 0%) usr 0.00 ( 0%) sys 0.14 ( 0%) wall
8337 kB ( 1%) ggc
rebuild jump labels : 0.22 ( 1%) usr 0.00 ( 0%) sys 0.21 ( 1%) wall
0 kB ( 0%) ggc
parser (global) : 3.57 ( 9%) usr 0.06 ( 7%) sys 3.63 ( 9%) wall
47587 kB ( 7%) ggc
inline heuristics : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall
54 kB ( 0%) ggc
tree gimplify : 0.51 ( 1%) usr 0.01 ( 1%) sys 0.51 ( 1%) wall
26304 kB ( 4%) ggc
tree eh : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
39 kB ( 0%) ggc
tree CFG construction : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
190 kB ( 0%) ggc
tree CFG cleanup : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
tree find ref. vars : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
3263 kB ( 0%) ggc
tree PHI insertion : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
0 kB ( 0%) ggc
tree SSA other : 0.01 ( 0%) usr 0.01 ( 1%) sys 0.02 ( 0%) wall
18 kB ( 0%) ggc
tree operand scan : 0.03 ( 0%) usr 0.03 ( 3%) sys 0.05 ( 0%) wall
118 kB ( 0%) ggc
tree SSA verifier : 0.10 ( 0%) usr 0.00 ( 0%) sys 0.10 ( 0%) wall
0 kB ( 0%) ggc
tree STMT verifier : 0.56 ( 1%) usr 0.05 ( 5%) sys 0.63 ( 2%) wall
0 kB ( 0%) ggc
callgraph verifier : 0.25 ( 1%) usr 0.00 ( 0%) sys 0.27 ( 1%) wall
0 kB ( 0%) ggc
out of ssa : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
expand vars : 1.02 ( 3%) usr 0.02 ( 2%) sys 1.03 ( 3%) wall
10086 kB ( 1%) ggc
expand : 2.03 ( 5%) usr 0.12 (13%) sys 2.18 ( 5%) wall
249774 kB (36%) ggc
post expand cleanups : 0.14 ( 0%) usr 0.01 ( 1%) sys 0.14 ( 0%) wall
1744 kB ( 0%) ggc
integrated RA : 10.75 (27%) usr 0.15 (16%) sys 10.93 (27%) wall
128826 kB (19%) ggc
reload : 5.56 (14%) usr 0.16 (17%) sys 5.77 (14%) wall
123587 kB (18%) ggc
thread pro- & epilogue : 2.65 ( 7%) usr 0.00 ( 0%) sys 2.64 ( 6%) wall
198 kB ( 0%) ggc
machine dep reorg : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
0 kB ( 0%) ggc
final : 3.11 ( 8%) usr 0.04 ( 4%) sys 3.15 ( 8%) wall
7227 kB ( 1%) ggc
symout : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
4914 kB ( 1%) ggc
rest of compilation : 2.46 ( 6%) usr 0.00 ( 0%) sys 2.39 ( 6%) wall
47578 kB ( 7%) ggc
unaccounted todo : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
0 kB ( 0%) ggc
verify RTL sharing : 1.49 ( 4%) usr 0.00 ( 0%) sys 1.48 ( 4%) wall
0 kB ( 0%) ggc
TOTAL : 40.09 0.92 41.02
695674 kB
