[Bug middle-end/45422] [4.6 Regression] compile time increases 3x.
xinliangli at gmail dot com
gcc-bugzilla@gcc.gnu.org
Fri Jan 21 21:01:00 GMT 2011
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45422
--- Comment #31 from davidxl <xinliangli at gmail dot com> 2011-01-21 20:08:11 UTC ---
Comparing this timing with 4.6 results (164s), looks like many other passes
become slower other than ivopt (e.g IRA increases from 3.5s to 11s etc -- ivopt
only account for a small part of the 110s increase.
David
(In reply to comment #18)
> FYI, these are the 4.5 branch timings:
>
> Execution times (seconds)
> garbage collection : 0.47 ( 1%) usr 0.00 ( 0%) sys 0.47 ( 1%) wall
> 0 kB ( 0%) ggc
> callgraph construction: 0.05 ( 0%) usr 0.01 ( 1%) sys 0.09 ( 0%) wall
> 5996 kB ( 1%) ggc
> callgraph optimization: 0.21 ( 0%) usr 0.02 ( 1%) sys 0.26 ( 0%) wall
> 606 kB ( 0%) ggc
> ipa cp : 0.09 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall
> 1381 kB ( 0%) ggc
> ipa reference : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall
> 0 kB ( 0%) ggc
> ipa pure const : 0.06 ( 0%) usr 0.01 ( 1%) sys 0.09 ( 0%) wall
> 0 kB ( 0%) ggc
> cfg cleanup : 0.39 ( 1%) usr 0.00 ( 0%) sys 0.51 ( 1%) wall
> 2459 kB ( 0%) ggc
> trivially dead code : 0.34 ( 1%) usr 0.00 ( 0%) sys 0.30 ( 1%) wall
> 0 kB ( 0%) ggc
> df multiple defs : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.13 ( 0%) wall
> 0 kB ( 0%) ggc
> df reaching defs : 0.33 ( 1%) usr 0.00 ( 0%) sys 0.27 ( 1%) wall
> 0 kB ( 0%) ggc
> df live regs : 2.08 ( 4%) usr 0.01 ( 1%) sys 2.19 ( 4%) wall
> 0 kB ( 0%) ggc
> df live&initialized regs: 0.98 ( 2%) usr 0.00 ( 0%) sys 0.92 ( 2%) wall
> 0 kB ( 0%) ggc
> df use-def / def-use chains: 0.24 ( 0%) usr 0.00 ( 0%) sys 0.19 ( 0%)
> wall 0 kB ( 0%) ggc
> df reg dead/unused notes: 0.93 ( 2%) usr 0.00 ( 0%) sys 1.04 ( 2%) wall
> 5756 kB ( 1%) ggc
> register information : 0.51 ( 1%) usr 0.01 ( 1%) sys 0.39 ( 1%) wall
> 0 kB ( 0%) ggc
> alias analysis : 0.78 ( 1%) usr 0.01 ( 1%) sys 0.91 ( 2%) wall
> 22384 kB ( 3%) ggc
> alias stmt walking : 0.50 ( 1%) usr 0.03 ( 2%) sys 0.38 ( 1%) wall
> 5563 kB ( 1%) ggc
> register scan : 0.13 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
> 0 kB ( 0%) ggc
> rebuild jump labels : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.19 ( 0%) wall
> 0 kB ( 0%) ggc
> parser : 0.82 ( 2%) usr 0.13 ( 9%) sys 0.94 ( 2%) wall
> 55603 kB ( 6%) ggc
> inline heuristics : 0.20 ( 0%) usr 0.01 ( 1%) sys 0.16 ( 0%) wall
> 0 kB ( 0%) ggc
> tree gimplify : 0.38 ( 1%) usr 0.03 ( 2%) sys 0.40 ( 1%) wall
> 46588 kB ( 5%) ggc
> tree eh : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
> 0 kB ( 0%) ggc
> tree CFG construction : 0.04 ( 0%) usr 0.02 ( 1%) sys 0.05 ( 0%) wall
> 11964 kB ( 1%) ggc
> tree CFG cleanup : 0.47 ( 1%) usr 0.00 ( 0%) sys 0.79 ( 1%) wall
> 1829 kB ( 0%) ggc
> tree VRP : 1.46 ( 3%) usr 0.05 ( 4%) sys 1.27 ( 2%) wall
> 56376 kB ( 6%) ggc
> tree copy propagation : 0.09 ( 0%) usr 0.02 ( 1%) sys 0.22 ( 0%) wall
> 746 kB ( 0%) ggc
> tree find ref. vars : 0.09 ( 0%) usr 0.01 ( 1%) sys 0.07 ( 0%) wall
> 3806 kB ( 0%) ggc
> tree PTA : 0.30 ( 1%) usr 0.00 ( 0%) sys 0.33 ( 1%) wall
> 3836 kB ( 0%) ggc
> tree PHI insertion : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall
> 3194 kB ( 0%) ggc
> tree SSA rewrite : 0.24 ( 0%) usr 0.01 ( 1%) sys 0.29 ( 1%) wall
> 13860 kB ( 2%) ggc
> tree SSA other : 0.13 ( 0%) usr 0.02 ( 1%) sys 0.11 ( 0%) wall
> 418 kB ( 0%) ggc
> tree SSA incremental : 0.89 ( 2%) usr 0.06 ( 4%) sys 0.97 ( 2%) wall
> 6811 kB ( 1%) ggc
> tree operand scan : 0.34 ( 1%) usr 0.23 (17%) sys 0.59 ( 1%) wall
> 44776 kB ( 5%) ggc
> dominator optimization: 0.29 ( 1%) usr 0.01 ( 1%) sys 0.35 ( 1%) wall
> 5152 kB ( 1%) ggc
> tree CCP : 0.51 ( 1%) usr 0.02 ( 1%) sys 0.43 ( 1%) wall
> 4620 kB ( 1%) ggc
> tree PHI const/copy prop: 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
> 106 kB ( 0%) ggc
> tree split crit edges : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
> 2019 kB ( 0%) ggc
> tree reassociation : 0.12 ( 0%) usr 0.01 ( 1%) sys 0.12 ( 0%) wall
> 2946 kB ( 0%) ggc
> tree PRE : 0.92 ( 2%) usr 0.00 ( 0%) sys 0.95 ( 2%) wall
> 7315 kB ( 1%) ggc
> tree FRE : 0.45 ( 1%) usr 0.04 ( 3%) sys 0.35 ( 1%) wall
> 5518 kB ( 1%) ggc
> tree code sinking : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
> 1400 kB ( 0%) ggc
> tree linearize phis : 0.02 ( 0%) usr 0.01 ( 1%) sys 0.01 ( 0%) wall
> 0 kB ( 0%) ggc
> tree forward propagate: 0.18 ( 0%) usr 0.02 ( 1%) sys 0.16 ( 0%) wall
> 10006 kB ( 1%) ggc
> tree conservative DCE : 0.05 ( 0%) usr 0.01 ( 1%) sys 0.13 ( 0%) wall
> 576 kB ( 0%) ggc
> tree aggressive DCE : 0.28 ( 1%) usr 0.01 ( 1%) sys 0.37 ( 1%) wall
> 8853 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 : 0.20 ( 0%) usr 0.00 ( 0%) sys 0.11 ( 0%) wall
> 132 kB ( 0%) ggc
> PHI merge : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
> 37 kB ( 0%) ggc
> tree loop bounds : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.18 ( 0%) wall
> 8266 kB ( 1%) ggc
> tree loop invariant motion: 0.06 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%)
> wall 67 kB ( 0%) ggc
> tree canonical iv : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall
> 4779 kB ( 1%) ggc
> scev constant prop : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
> 2345 kB ( 0%) ggc
> tree loop unswitching : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
> 573 kB ( 0%) ggc
> complete unrolling : 1.05 ( 2%) usr 0.11 ( 8%) sys 1.39 ( 3%) wall
> 98553 kB (11%) ggc
> tree vectorization : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
> 883 kB ( 0%) ggc
> tree slp vectorization: 0.61 ( 1%) usr 0.00 ( 0%) sys 0.60 ( 1%) wall
> 53236 kB ( 6%) ggc
> tree iv optimization : 5.80 (11%) usr 0.06 ( 4%) sys 5.94 (11%) wall
> 95356 kB (11%) ggc
> predictive commoning : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
> 1054 kB ( 0%) ggc
> tree loop init : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
> 1339 kB ( 0%) ggc
> tree copy headers : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
> 1613 kB ( 0%) ggc
> tree SSA uncprop : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall
> 0 kB ( 0%) ggc
> tree rename SSA copies: 0.06 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
> 0 kB ( 0%) ggc
> dominance frontiers : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
> 0 kB ( 0%) ggc
> dominance computation : 0.23 ( 0%) usr 0.00 ( 0%) sys 0.26 ( 0%) wall
> 0 kB ( 0%) ggc
> expand : 3.24 ( 6%) usr 0.07 ( 5%) sys 3.34 ( 6%) wall
> 69633 kB ( 8%) ggc
> lower subreg : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
> 0 kB ( 0%) ggc
> forward prop : 0.48 ( 1%) usr 0.01 ( 1%) sys 0.48 ( 1%) wall
> 9984 kB ( 1%) ggc
> CSE : 0.73 ( 1%) usr 0.00 ( 0%) sys 0.92 ( 2%) wall
> 248 kB ( 0%) ggc
> dead code elimination : 0.24 ( 0%) usr 0.00 ( 0%) sys 0.28 ( 1%) wall
> 0 kB ( 0%) ggc
> dead store elim1 : 0.33 ( 1%) usr 0.01 ( 1%) sys 0.32 ( 1%) wall
> 5987 kB ( 1%) ggc
> dead store elim2 : 0.44 ( 1%) usr 0.02 ( 1%) sys 0.39 ( 1%) wall
> 7831 kB ( 1%) ggc
> loop analysis : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
> 718 kB ( 0%) ggc
> loop invariant motion : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
> 305 kB ( 0%) ggc
> loop unswitching : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
> 0 kB ( 0%) ggc
> loop unrolling : 0.65 ( 1%) usr 0.00 ( 0%) sys 0.62 ( 1%) wall
> 32780 kB ( 4%) ggc
> CPROP : 0.70 ( 1%) usr 0.00 ( 0%) sys 0.60 ( 1%) wall
> 7825 kB ( 1%) ggc
> PRE : 0.32 ( 1%) usr 0.00 ( 0%) sys 0.33 ( 1%) wall
> 719 kB ( 0%) ggc
> web : 0.13 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall
> 594 kB ( 0%) ggc
> CSE 2 : 0.75 ( 1%) usr 0.01 ( 1%) sys 0.60 ( 1%) wall
> 470 kB ( 0%) ggc
> branch prediction : 0.19 ( 0%) usr 0.01 ( 1%) sys 0.14 ( 0%) wall
> 7344 kB ( 1%) ggc
> combiner : 1.19 ( 2%) usr 0.01 ( 1%) sys 1.33 ( 2%) wall
> 19980 kB ( 2%) ggc
> if-conversion : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall
> 746 kB ( 0%) ggc
> regmove : 0.37 ( 1%) usr 0.01 ( 1%) sys 0.33 ( 1%) wall
> 0 kB ( 0%) ggc
> integrated RA : 3.51 ( 7%) usr 0.01 ( 1%) sys 3.74 ( 7%) wall
> 12746 kB ( 1%) ggc
> reload : 2.16 ( 4%) usr 0.02 ( 1%) sys 2.01 ( 4%) wall
> 7755 kB ( 1%) ggc
> reload CSE regs : 1.38 ( 3%) usr 0.00 ( 0%) sys 1.26 ( 2%) wall
> 12331 kB ( 1%) ggc
> load CSE after reload : 0.18 ( 0%) usr 0.00 ( 0%) sys 0.14 ( 0%) wall
> 162 kB ( 0%) ggc
> thread pro- & epilogue: 0.11 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall
> 4370 kB ( 0%) ggc
> if-conversion 2 : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
> 357 kB ( 0%) ggc
> combine stack adjustments: 0.03 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall
> 0 kB ( 0%) ggc
> peephole 2 : 0.12 ( 0%) usr 0.00 ( 0%) sys 0.16 ( 0%) wall
> 1899 kB ( 0%) ggc
> rename registers : 0.46 ( 1%) usr 0.00 ( 0%) sys 0.55 ( 1%) wall
> 2237 kB ( 0%) ggc
> hard reg cprop : 0.37 ( 1%) usr 0.00 ( 0%) sys 0.48 ( 1%) wall
> 13 kB ( 0%) ggc
> scheduling 2 : 3.30 ( 6%) usr 0.04 ( 3%) sys 3.10 ( 6%) wall
> 1216 kB ( 0%) ggc
> machine dep reorg : 0.38 ( 1%) usr 0.00 ( 0%) sys 0.36 ( 1%) wall
> 11 kB ( 0%) ggc
> reorder blocks : 0.15 ( 0%) usr 0.00 ( 0%) sys 0.13 ( 0%) wall
> 1283 kB ( 0%) ggc
> final : 0.93 ( 2%) usr 0.07 ( 5%) sys 0.84 ( 2%) wall
> 6610 kB ( 1%) ggc
> symout : 0.30 ( 1%) usr 0.03 ( 2%) sys 0.34 ( 1%) wall
> 27006 kB ( 3%) ggc
> variable tracking : 3.86 ( 7%) usr 0.03 ( 2%) sys 3.99 ( 7%) wall
> 39804 kB ( 4%) ggc
> plugin execution : 0.00 ( 0%) usr 0.01 ( 1%) sys 0.05 ( 0%) wall
> 0 kB ( 0%) ggc
> rest of compilation : 0.00 ( 0%) usr 0.01 ( 1%) sys 0.00 ( 0%) wall
> 0 kB ( 0%) ggc
> TOTAL : 52.50 1.37 53.88
> 893901 kB
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