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From: "hubicka at ucw dot cz" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/28071] [4.1/4.2 regression] A file that can not be compiled in reasonable time/space Date: Sat, 22 Jul 2006 20:51:00 -0000 [thread overview] Message-ID: <20060722205122.24856.qmail@sourceware.org> (raw) In-Reply-To: <bug-28071-12846@http.gcc.gnu.org/bugzilla/> ------- Comment #16 from hubicka at ucw dot cz 2006-07-22 20:51 ------- Subject: Re: [4.1/4.2 regression] A file that can not be compiled in reasonable time/space Hi, with the attached patch that saves roughly 10 minutes of tree-into-ssa pass, I can compile with -O3 -fno-tree-fre -fno-tree-pre. Only without checking-enabled since we do incredibly deep dominator walks running out of stack space that can be considered as bug too. TER still manages to enfore few thousdand temporaries with overlapping liveranges. THe out-of-ssa pass spends most of time in calculate_live_on_exit and calculate_live_on_entry that looks rather symmetric to problem cured by the attached patch, but I don't see directly how to avoid the quadratic behaviour there. Honza garbage collection : 1.22 ( 0%) usr 0.10 ( 1%) sys 8.40 ( 1%) wall 0 kB ( 0%) ggc callgraph construction: 0.14 ( 0%) usr 0.03 ( 0%) sys 0.18 ( 0%) wall 1147 kB ( 0%) ggc callgraph optimization: 0.07 ( 0%) usr 0.01 ( 0%) sys 0.45 ( 0%) wall 533 kB ( 0%) ggc ipa reference : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall 0 kB ( 0%) ggc ipa pure const : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 0 kB ( 0%) ggc ipa type escape : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall 0 kB ( 0%) ggc cfg cleanup : 3.89 ( 1%) usr 0.01 ( 0%) sys 4.11 ( 0%) wall 1576 kB ( 1%) ggc trivially dead code : 0.46 ( 0%) usr 0.00 ( 0%) sys 0.53 ( 0%) wall 0 kB ( 0%) ggc life analysis : 51.34 ( 9%) usr 2.65 (21%) sys 73.91 ( 5%) wall 2653 kB ( 1%) ggc life info update : 48.97 ( 9%) usr 0.14 ( 1%) sys 50.68 ( 4%) wall 641 kB ( 0%) ggc alias analysis : 0.69 ( 0%) usr 0.00 ( 0%) sys 1.05 ( 0%) wall 4139 kB ( 1%) ggc register scan : 0.41 ( 0%) usr 0.00 ( 0%) sys 0.40 ( 0%) wall 0 kB ( 0%) ggc rebuild jump labels : 0.14 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall 0 kB ( 0%) ggc preprocessing : 0.37 ( 0%) usr 0.06 ( 0%) sys 0.34 ( 0%) wall 471 kB ( 0%) ggc lexical analysis : 0.01 ( 0%) usr 0.05 ( 0%) sys 0.07 ( 0%) wall 0 kB ( 0%) ggc parser : 0.09 ( 0%) usr 0.02 ( 0%) sys 0.18 ( 0%) wall 3207 kB ( 1%) ggc inline heuristics : 14.79 ( 3%) usr 0.02 ( 0%) sys 14.86 ( 1%) wall 1118 kB ( 0%) ggc integration : 17.07 ( 3%) usr 0.22 ( 2%) sys 17.36 ( 1%) wall 79483 kB (27%) ggc tree gimplify : 0.15 ( 0%) usr 0.01 ( 0%) sys 0.17 ( 0%) wall 3341 kB ( 1%) ggc tree eh : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 0 kB ( 0%) ggc tree CFG construction : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall 1338 kB ( 0%) ggc tree CFG cleanup : 4.27 ( 1%) usr 0.00 ( 0%) sys 4.27 ( 0%) wall 20 kB ( 0%) ggc tree VRP : 1.26 ( 0%) usr 0.03 ( 0%) sys 1.33 ( 0%) wall 14 kB ( 0%) ggc tree copy propagation : 0.85 ( 0%) usr 0.05 ( 0%) sys 0.94 ( 0%) wall 313 kB ( 0%) ggc tree store copy prop : 0.27 ( 0%) usr 0.01 ( 0%) sys 0.28 ( 0%) wall 5 kB ( 0%) ggc tree find ref. vars : 0.16 ( 0%) usr 0.03 ( 0%) sys 0.18 ( 0%) wall 12044 kB ( 4%) ggc tree PTA : 1.55 ( 0%) usr 0.06 ( 0%) sys 1.63 ( 0%) wall 57 kB ( 0%) ggc tree alias analysis : 2.81 ( 0%) usr 0.29 ( 2%) sys 3.10 ( 0%) wall 0 kB ( 0%) ggc tree PHI insertion : 0.57 ( 0%) usr 0.92 ( 7%) sys 1.52 ( 0%) wall 3137 kB ( 1%) ggc tree SSA rewrite : 2.33 ( 0%) usr 0.06 ( 0%) sys 5.02 ( 0%) wall 21592 kB ( 7%) ggc tree SSA other : 0.41 ( 0%) usr 0.16 ( 1%) sys 0.65 ( 0%) wall 0 kB ( 0%) ggc tree SSA incremental : 4.18 ( 1%) usr 0.45 ( 4%) sys 4.72 ( 0%) wall 520 kB ( 0%) ggc tree operand scan : 1.79 ( 0%) usr 0.69 ( 5%) sys 39.97 ( 3%) wall 18374 kB ( 6%) ggc dominator optimization: 2.91 ( 1%) usr 0.05 ( 0%) sys 2.99 ( 0%) wall 11155 kB ( 4%) ggc tree SRA : 4.24 ( 1%) usr 0.15 ( 1%) sys 4.51 ( 0%) wall 25568 kB ( 9%) ggc tree STORE-CCP : 0.29 ( 0%) usr 0.01 ( 0%) sys 0.31 ( 0%) wall 18 kB ( 0%) ggc tree CCP : 0.87 ( 0%) usr 0.01 ( 0%) sys 2.39 ( 0%) wall 154 kB ( 0%) ggc tree split crit edges : 0.11 ( 0%) usr 0.02 ( 0%) sys 0.14 ( 0%) wall 9284 kB ( 3%) ggc tree reassociation : 0.34 ( 0%) usr 0.00 ( 0%) sys 0.33 ( 0%) wall 0 kB ( 0%) ggc tree code sinking : 0.32 ( 0%) usr 0.00 ( 0%) sys 0.32 ( 0%) wall 0 kB ( 0%) ggc tree linearize phis : 0.12 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall 0 kB ( 0%) ggc tree forward propagate: 0.10 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall 0 kB ( 0%) ggc tree conservative DCE : 1.13 ( 0%) usr 0.00 ( 0%) sys 1.11 ( 0%) wall 0 kB ( 0%) ggc tree aggressive DCE : 0.28 ( 0%) usr 0.00 ( 0%) sys 0.28 ( 0%) wall 0 kB ( 0%) ggc tree DSE : 0.25 ( 0%) usr 0.00 ( 0%) sys 0.22 ( 0%) wall 1 kB ( 0%) ggc PHI merge : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall 0 kB ( 0%) ggc complete unrolling : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall 0 kB ( 0%) ggc tree loop init : 0.14 ( 0%) usr 0.00 ( 0%) sys 0.15 ( 0%) wall 0 kB ( 0%) ggc tree copy headers : 0.10 ( 0%) usr 0.00 ( 0%) sys 0.10 ( 0%) wall 0 kB ( 0%) ggc tree SSA uncprop : 0.09 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall 0 kB ( 0%) ggc tree SSA to normal : 228.94 (40%) usr 0.64 ( 5%) sys 337.06 (25%) wall 10323 kB ( 4%) ggc tree rename SSA copies: 0.49 ( 0%) usr 0.03 ( 0%) sys 0.51 ( 0%) wall 0 kB ( 0%) ggc dominance frontiers : 0.23 ( 0%) usr 0.00 ( 0%) sys 0.26 ( 0%) wall 0 kB ( 0%) ggc dominance computation : 2.63 ( 0%) usr 0.09 ( 1%) sys 2.85 ( 0%) wall 0 kB ( 0%) ggc control dependences : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall 0 kB ( 0%) ggc expand : 6.10 ( 1%) usr 1.13 ( 9%) sys 192.49 (14%) wall 35008 kB (12%) ggc jump : 0.09 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall 0 kB ( 0%) ggc CSE : 0.89 ( 0%) usr 0.01 ( 0%) sys 0.89 ( 0%) wall 53 kB ( 0%) ggc loop analysis : 0.29 ( 0%) usr 0.00 ( 0%) sys 0.28 ( 0%) wall 930 kB ( 0%) ggc CPROP 1 : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall 0 kB ( 0%) ggc CSE 2 : 0.46 ( 0%) usr 0.00 ( 0%) sys 0.46 ( 0%) wall 29 kB ( 0%) ggc branch prediction : 0.55 ( 0%) usr 0.00 ( 0%) sys 0.56 ( 0%) wall 0 kB ( 0%) ggc flow analysis : 37.33 ( 6%) usr 0.10 ( 1%) sys 53.59 ( 4%) wall 0 kB ( 0%) ggc combiner : 1.02 ( 0%) usr 0.02 ( 0%) sys 1.37 ( 0%) wall 2685 kB ( 1%) ggc if-conversion : 5.21 ( 1%) usr 0.00 ( 0%) sys 5.36 ( 0%) wall 1614 kB ( 1%) ggc regmove : 0.72 ( 0%) usr 0.01 ( 0%) sys 0.83 ( 0%) wall 4 kB ( 0%) ggc mode switching : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.02 ( 0%) wall 0 kB ( 0%) ggc local alloc : 1.06 ( 0%) usr 0.02 ( 0%) sys 1.46 ( 0%) wall 1045 kB ( 0%) ggc global alloc : 86.33 (15%) usr 4.12 (32%) sys 452.97 (34%) wall 8488 kB ( 3%) ggc reload CSE regs : 24.86 ( 4%) usr 0.07 ( 1%) sys 28.13 ( 2%) wall 3370 kB ( 1%) ggc load CSE after reload : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.11 ( 0%) wall 0 kB ( 0%) ggc flow 2 : 0.36 ( 0%) usr 0.01 ( 0%) sys 1.19 ( 0%) wall 5064 kB ( 2%) ggc if-conversion 2 : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.24 ( 0%) wall 0 kB ( 0%) ggc peephole 2 : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.24 ( 0%) wall 0 kB ( 0%) ggc rename registers : 0.38 ( 0%) usr 0.05 ( 0%) sys 0.50 ( 0%) wall 1 kB ( 0%) ggc scheduling 2 : 2.10 ( 0%) usr 0.07 ( 1%) sys 2.40 ( 0%) wall 4347 kB ( 1%) ggc machine dep reorg : 0.31 ( 0%) usr 0.00 ( 0%) sys 0.31 ( 0%) wall 79 kB ( 0%) ggc reorder blocks : 0.63 ( 0%) usr 0.01 ( 0%) sys 1.06 ( 0%) wall 2738 kB ( 1%) ggc reg stack : 1.07 ( 0%) usr 0.02 ( 0%) sys 1.53 ( 0%) wall 11030 kB ( 4%) ggc final : 1.06 ( 0%) usr 0.04 ( 0%) sys 1.18 ( 0%) wall 2182 kB ( 1%) ggc symout : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.11 ( 0%) wall 0 kB ( 0%) ggc TOTAL : 575.62 12.78 1351.48 291955 kB ------- Comment #17 from hubicka at ucw dot cz 2006-07-22 20:51 ------- Created an attachment (id=11921) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11921&action=view) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28071
next prev parent reply other threads:[~2006-07-22 20:51 UTC|newest] Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top 2006-06-17 9:27 [Bug c/28071] New: " raffalli at univ-savoie dot fr 2006-06-17 9:52 ` [Bug c/28071] " raffalli at univ-savoie dot fr 2006-06-17 10:57 ` steven at gcc dot gnu dot org 2006-06-17 11:06 ` steven at gcc dot gnu dot org 2006-06-17 14:30 ` steven at gcc dot gnu dot org 2006-06-17 14:56 ` [Bug middle-end/28071] [4.2 regression] " pinskia at gcc dot gnu dot org 2006-06-17 18:42 ` [Bug middle-end/28071] [4.1/4.2 " rguenth at gcc dot gnu dot org 2006-06-17 19:24 ` [Bug rtl-optimization/28071] " rguenth at gcc dot gnu dot org 2006-06-19 8:56 ` raffalli at univ-savoie dot fr 2006-07-17 2:45 ` mmitchel at gcc dot gnu dot org 2006-07-21 21:12 ` hubicka at gcc dot gnu dot org 2006-07-21 22:01 ` raffalli at univ-savoie dot fr 2006-07-22 13:47 ` hubicka at ucw dot cz 2006-07-22 17:13 ` hubicka at ucw dot cz 2006-07-22 18:09 ` hubicka at ucw dot cz 2006-07-22 19:30 ` hubicka at ucw dot cz 2006-07-22 20:51 ` Jan Hubicka 2006-07-22 20:51 ` hubicka at ucw dot cz [this message] 2006-07-24 0:05 ` patchapp at dberlin dot org 2006-07-24 11:24 ` hubicka at gcc dot gnu dot org 2006-07-24 11:28 ` hubicka at gcc dot gnu dot org 2006-07-24 11:54 ` hubicka at gcc dot gnu dot org 2006-07-25 18:20 ` patchapp at dberlin dot org 2006-07-26 22:52 ` hubicka at gcc dot gnu dot org 2006-07-27 7:15 ` patchapp at dberlin dot org 2006-07-27 7:20 ` patchapp at dberlin dot org 2006-07-27 7:25 ` patchapp at dberlin dot org 2006-07-27 8:00 ` patchapp at dberlin dot org 2006-07-27 16:02 ` hubicka at gcc dot gnu dot org 2006-07-27 16:03 ` hubicka at gcc dot gnu dot org 2006-07-27 17:10 ` hubicka at gcc dot gnu dot org 2006-07-28 9:30 ` patchapp at dberlin dot org 2006-07-28 9:41 ` hubicka at ucw dot cz 2006-07-29 13:15 ` hubicka at gcc dot gnu dot org 2006-07-30 5:45 ` patchapp at dberlin dot org 2006-08-11 7:17 ` ebotcazou at gcc dot gnu dot org 2006-08-16 21:25 ` [Bug middle-end/28071] " rakdver at gcc dot gnu dot org 2006-08-18 23:10 ` hubicka at ucw dot cz 2006-08-19 0:19 ` hubicka at ucw dot cz 2006-08-19 1:52 ` hubicka at ucw dot cz 2006-08-19 21:58 ` amacleod at redhat dot com 2006-08-20 0:58 ` Jan Hubicka 2006-08-20 0:59 ` hubicka at ucw dot cz 2006-08-21 0:00 ` hubicka at gcc dot gnu dot org 2006-08-21 1:42 ` hubicka at gcc dot gnu dot org 2006-08-21 2:59 ` Jan Hubicka 2006-08-21 2:59 ` hubicka at ucw dot cz 2006-08-21 12:56 ` hubicka at ucw dot cz 2006-08-21 17:11 ` hubicka at ucw dot cz 2006-08-25 1:37 ` amacleod at redhat dot com 2006-08-25 1:43 ` amacleod at redhat dot com 2006-08-25 1:57 ` amacleod at redhat dot com 2006-08-28 17:18 ` amacleod at gcc dot gnu dot org 2006-08-28 17:37 ` amacleod at redhat dot com 2006-09-12 10:11 ` hubicka at gcc dot gnu dot org 2006-09-23 9:44 ` steven at gcc dot gnu dot org 2006-09-23 10:22 ` [Bug middle-end/28071] [4.1 " rguenth at gcc dot gnu dot org 2007-01-10 11:43 ` mkuvyrkov at gcc dot gnu dot org 2007-01-15 7:19 ` zaks at il dot ibm dot com 2007-01-15 7:52 ` Maxim Kuvyrkov 2007-01-15 7:53 ` mkuvyrkov at ispras dot ru 2007-01-15 15:31 ` zaks at il dot ibm dot com 2007-01-18 9:52 ` hubicka at ucw dot cz 2007-02-06 22:05 ` hubicka at gcc dot gnu dot org 2007-02-06 22:15 ` hubicka at gcc dot gnu dot org 2007-03-26 15:50 ` bonzini at gnu dot org 2007-04-16 15:04 ` mkuvyrkov at gcc dot gnu dot org 2007-04-16 15:07 ` mkuvyrkov at gcc dot gnu dot org 2007-04-17 18:16 ` hubicka at gcc dot gnu dot org 2007-04-17 18:38 ` hubicka at ucw dot cz 2007-05-14 21:37 ` mmitchel at gcc dot gnu dot org 2007-05-14 21:49 ` fang at csl dot cornell dot edu 2007-07-20 3:47 ` mmitchel at gcc dot gnu dot org 2007-10-09 19:25 ` mmitchel at gcc dot gnu dot org 2007-11-03 8:07 ` ebotcazou at gcc dot gnu dot org
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