http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52361
Bug #: 52361 Summary: gcc.dg/pr48141.c times out Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassig...@gcc.gnu.org ReportedBy: r...@gcc.gnu.org Host: sparc-sun-solaris2.[89] Target: sparc-sun-solaris2.[89] Build: sparc-sun-solaris2.[89] I often see the gcc.dg/pr48141.c test time out on an 1.2 GHz UltraSPARC-T2: on a completely unloaded machine, I find: real 1:36.81 user 1:34.87 sys 0.48 It's not much better on an 1.35 GHz UltraSPARC-IV: real 55.51 user 52.20 sys 0.30 while on a 2.6 GHz Opteron 8128, I get real 17.39 user 13.45 sys 0.35 instead. With -ftime-report, I find: Execution times (seconds) phase setup : 0.03 ( 0%) usr 0.01 ( 0%) sys 0.03 ( 0%) wall 532 kB ( 1%) ggc phase parsing : 6.38 ( 6%) usr 1.92 (68%) sys 8.31 ( 8%) wall 5212 kB ( 7%) ggc phase cgraph : 94.53 (94%) usr 0.89 (32%) sys 95.42 (92%) wall 73673 kB (93%) ggc phase generate : 94.53 (94%) usr 0.89 (32%) sys 95.42 (92%) wall 73673 kB (93%) ggc garbage collection : 2.10 ( 2%) usr 0.13 ( 5%) sys 2.22 ( 2%) wall 0 kB ( 0%) ggc callgraph construction : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.23 ( 0%) wall 0 kB ( 0%) ggc callgraph optimization : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall 0 kB ( 0%) ggc ipa pure const : 0.25 ( 0%) usr 0.00 ( 0%) sys 0.25 ( 0%) wall 0 kB ( 0%) ggc cfg construction : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall 0 kB ( 0%) ggc cfg cleanup : 0.02 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 0 kB ( 0%) ggc CFG verifier : 2.23 ( 2%) usr 0.00 ( 0%) sys 2.21 ( 2%) wall 0 kB ( 0%) ggc trivially dead code : 0.85 ( 1%) usr 0.00 ( 0%) sys 0.86 ( 1%) wall 0 kB ( 0%) ggc df scan insns : 0.29 ( 0%) usr 0.00 ( 0%) sys 0.30 ( 0%) wall 0 kB ( 0%) ggc df multiple defs : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall 0 kB ( 0%) ggc df live regs : 0.78 ( 1%) usr 0.00 ( 0%) sys 0.78 ( 1%) wall 0 kB ( 0%) ggc df live&initialized regs: 0.14 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall 0 kB ( 0%) ggc df reg dead/unused notes: 0.53 ( 1%) usr 0.00 ( 0%) sys 0.57 ( 1%) wall 0 kB ( 0%) ggc register information : 0.07 ( 0%) usr 0.00 ( 0%) sys 0.07 ( 0%) wall 0 kB ( 0%) ggc alias analysis : 0.64 ( 1%) usr 0.00 ( 0%) sys 0.62 ( 1%) wall 1 kB ( 0%) ggc alias stmt walking : 2.29 ( 2%) usr 0.21 ( 7%) sys 2.57 ( 2%) wall 10312 kB (13%) ggc register scan : 0.09 ( 0%) usr 0.00 ( 0%) sys 0.09 ( 0%) wall 0 kB ( 0%) ggc rebuild jump labels : 0.21 ( 0%) usr 0.00 ( 0%) sys 0.20 ( 0%) wall 0 kB ( 0%) ggc preprocessing : 1.67 ( 2%) usr 0.49 (17%) sys 2.11 ( 2%) wall 1 kB ( 0%) ggc lexical analysis : 2.05 ( 2%) usr 0.90 (32%) sys 3.11 ( 3%) wall 0 kB ( 0%) ggc parser function body : 2.52 ( 2%) usr 0.53 (19%) sys 2.94 ( 3%) wall 5157 kB ( 6%) ggc inline heuristics : 0.80 ( 1%) usr 0.00 ( 0%) sys 0.80 ( 1%) wall 1 kB ( 0%) ggc tree gimplify : 0.54 ( 1%) usr 0.01 ( 0%) sys 0.55 ( 1%) wall 6875 kB ( 9%) ggc tree eh : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall 0 kB ( 0%) ggc tree CFG construction : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall 0 kB ( 0%) ggc tree copy propagation : 1.04 ( 1%) usr 0.00 ( 0%) sys 1.06 ( 1%) wall 0 kB ( 0%) ggc tree find ref. vars : 0.08 ( 0%) usr 0.00 ( 0%) sys 0.08 ( 0%) wall 0 kB ( 0%) ggc tree PTA : 1.26 ( 1%) usr 0.00 ( 0%) sys 1.26 ( 1%) wall 0 kB ( 0%) ggc tree SSA rewrite : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.21 ( 0%) wall 6179 kB ( 8%) ggc tree SSA other : 0.22 ( 0%) usr 0.08 ( 3%) sys 0.46 ( 0%) wall 0 kB ( 0%) ggc tree SSA incremental : 0.17 ( 0%) usr 0.00 ( 0%) sys 0.17 ( 0%) wall 0 kB ( 0%) ggc tree operand scan : 0.42 ( 0%) usr 0.13 ( 5%) sys 0.39 ( 0%) wall 3013 kB ( 4%) ggc dominator optimization : 0.15 ( 0%) usr 0.00 ( 0%) sys 0.16 ( 0%) wall 0 kB ( 0%) ggc tree CCP : 0.74 ( 1%) usr 0.00 ( 0%) sys 0.74 ( 1%) wall 0 kB ( 0%) ggc tree reassociation : 0.12 ( 0%) usr 0.00 ( 0%) sys 0.12 ( 0%) wall 0 kB ( 0%) ggc tree FRE : 3.25 ( 3%) usr 0.23 ( 8%) sys 3.42 ( 3%) wall 10314 kB (13%) ggc tree linearize phis : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall 0 kB ( 0%) ggc tree forward propagate : 0.24 ( 0%) usr 0.00 ( 0%) sys 0.23 ( 0%) wall 0 kB ( 0%) ggc tree conservative DCE : 0.33 ( 0%) usr 0.00 ( 0%) sys 0.33 ( 0%) wall 0 kB ( 0%) ggc tree aggressive DCE : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.22 ( 0%) wall 0 kB ( 0%) ggc tree DSE : 0.06 ( 0%) usr 0.00 ( 0%) sys 0.06 ( 0%) wall 0 kB ( 0%) ggc tree rename SSA copies : 0.25 ( 0%) usr 0.00 ( 0%) sys 0.25 ( 0%) wall 0 kB ( 0%) ggc tree SSA verifier : 19.82 (20%) usr 0.00 ( 0%) sys 19.92 (19%) wall 0 kB ( 0%) ggc tree STMT verifier : 23.03 (23%) usr 0.01 ( 0%) sys 22.98 (22%) wall 0 kB ( 0%) ggc callgraph verifier : 0.52 ( 1%) usr 0.00 ( 0%) sys 0.48 ( 0%) wall 0 kB ( 0%) ggc out of ssa : 0.30 ( 0%) usr 0.00 ( 0%) sys 0.30 ( 0%) wall 0 kB ( 0%) ggc expand : 0.88 ( 1%) usr 0.00 ( 0%) sys 0.88 ( 1%) wall 9454 kB (12%) ggc post expand cleanups : 0.03 ( 0%) usr 0.00 ( 0%) sys 0.03 ( 0%) wall 0 kB ( 0%) ggc forward prop : 0.40 ( 0%) usr 0.02 ( 1%) sys 0.40 ( 0%) wall 0 kB ( 0%) ggc CSE : 0.58 ( 1%) usr 0.00 ( 0%) sys 0.59 ( 1%) wall 0 kB ( 0%) ggc dead code elimination : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.22 ( 0%) wall 0 kB ( 0%) ggc dead store elim1 : 2.23 ( 2%) usr 0.01 ( 0%) sys 2.24 ( 2%) wall 1718 kB ( 2%) ggc dead store elim2 : 1.79 ( 2%) usr 0.00 ( 0%) sys 1.79 ( 2%) wall 3437 kB ( 4%) ggc branch prediction : 0.04 ( 0%) usr 0.00 ( 0%) sys 0.04 ( 0%) wall 0 kB ( 0%) ggc combiner : 0.42 ( 0%) usr 0.00 ( 0%) sys 0.41 ( 0%) wall 0 kB ( 0%) ggc integrated RA : 4.50 ( 4%) usr 0.00 ( 0%) sys 4.51 ( 4%) wall 3450 kB ( 4%) ggc reload : 7.73 ( 8%) usr 0.03 ( 1%) sys 7.75 ( 7%) wall 12031 kB (15%) ggc reload CSE regs : 2.07 ( 2%) usr 0.00 ( 0%) sys 2.07 ( 2%) wall 3437 kB ( 4%) ggc thread pro- & epilogue : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall 0 kB ( 0%) ggc hard reg cprop : 1.00 ( 1%) usr 0.00 ( 0%) sys 1.00 ( 1%) wall 0 kB ( 0%) ggc delay branch sched : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.19 ( 0%) wall 0 kB ( 0%) ggc final : 1.42 ( 1%) usr 0.01 ( 0%) sys 1.42 ( 1%) wall 0 kB ( 0%) ggc rest of compilation : 1.92 ( 2%) usr 0.02 ( 1%) sys 1.96 ( 2%) wall 3438 kB ( 4%) ggc remove unused locals : 0.22 ( 0%) usr 0.00 ( 0%) sys 0.23 ( 0%) wall 0 kB ( 0%) ggc address taken : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.20 ( 0%) wall 0 kB ( 0%) ggc unaccounted todo : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall 0 kB ( 0%) ggc verify RTL sharing : 3.99 ( 4%) usr 0.00 ( 0%) sys 3.98 ( 4%) wall 0 kB ( 0%) ggc TOTAL : 100.94 2.82 103.76 79427 kB Extra diagnostic checks enabled; compiler may run slowly. Configure with --enable-checking=release to disable checks. Rainer