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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/103050] [12 Regression] 520.omnetpp_r miscompiled after r12-4787-gb8ef019ab938471f Date: Tue, 02 Nov 2021 20:06:35 +0000 [thread overview] Message-ID: <bug-103050-4-uK2Sx9441B@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-103050-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103050 --- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> --- So the only 2 transform happen here: (gdb) bt #0 gimple_call_retslot_flags (stmt=0x7ffff4543b40) at /home/marxin/Programming/gcc/gcc/gimple.c:1644 #1 0x0000000000ff6128 in handle_rhs_call (stmt=0x7ffff4543b40, results=0x7fffffffc750, implicit_eaf_flags=0, writes_global_memory=<optimized out>, reads_global_memory=<optimized out>) at /home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:4266 #2 0x0000000000ff9103 in find_func_aliases_for_call (t=<optimized out>, fn=<optimized out>) at /home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:4921 #3 find_func_aliases (fn=<optimized out>, origt=<optimized out>) at /home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:5024 #4 0x0000000000ffac9b in compute_points_to_sets () at /home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:7440 #5 compute_may_aliases () at /home/marxin/Programming/gcc/gcc/tree-ssa-structalias.c:7948 #6 0x0000000000cf2f2d in execute_function_todo (fn=0x7ffff7133f00, data=<optimized out>) at /home/marxin/Programming/gcc/gcc/passes.c:2014 #7 0x0000000000cf347c in execute_todo (flags=1572864) at /home/marxin/Programming/gcc/gcc/passes.c:2096 #8 0x0000000000cf60fe in execute_one_pass (pass=0x282cae0) at /home/marxin/Programming/gcc/gcc/passes.c:2560 #9 0x0000000000cf6a13 in execute_pass_list_1 (pass=0x282cae0) at /home/marxin/Programming/gcc/gcc/passes.c:2656 #10 0x0000000000cf6a25 in execute_pass_list_1 (pass=0x282ba00) at /home/marxin/Programming/gcc/gcc/passes.c:2657 #11 0x0000000000cf6a56 in execute_pass_list (fn=0x7ffff7133f00, pass=<optimized out>) at /home/marxin/Programming/gcc/gcc/passes.c:2667 #12 0x00000000009424f5 in cgraph_node::expand (this=0x7ffff730ddd0) at /home/marxin/Programming/gcc/gcc/context.h:48 #13 cgraph_node::expand (this=0x7ffff730ddd0) at /home/marxin/Programming/gcc/gcc/cgraphunit.c:1781 #14 0x0000000000943b6f in expand_all_functions () at /home/marxin/Programming/gcc/gcc/cgraphunit.c:1992 #15 symbol_table::compile (this=0x7ffff765a000) at /home/marxin/Programming/gcc/gcc/cgraphunit.c:2356 #16 symbol_table::compile (this=0x7ffff765a000) at /home/marxin/Programming/gcc/gcc/cgraphunit.c:2267 #17 0x0000000000896c80 in lto_main () at /home/marxin/Programming/gcc/gcc/lto/lto.c:653 #18 0x0000000000ddcd24 in compile_file () at /home/marxin/Programming/gcc/gcc/toplev.c:452 #19 0x000000000086d91b in do_compile (no_backend=false) at /home/marxin/Programming/gcc/gcc/toplev.c:2154 #20 toplev::main (this=this@entry=0x7fffffffccfe, argc=<optimized out>, argc@entry=198, argv=<optimized out>, argv@entry=0x7fffffffce48) at /home/marxin/Programming/gcc/gcc/toplev.c:2306 #21 0x0000000000870fd5 in main (argc=198, argv=0x7fffffffce48) at /home/marxin/Programming/gcc/gcc/main.c:39 (gdb) p debug_gimple_stmt(stmt) # .MEM_271 = VDEF <.MEM_270> D.31174 = opp_quotestr (name_22); [return slot optimization] (gdb) p debug_function(cfun->decl, 0) void recordScalar (struct cFileOutputScalarManager * const this, struct cComponent * component, const char * name, double value, struct opp_string_map * attributes) { const char * s; const char * s; struct _Rb_tree_node_base * const it$_M_node; struct string D.31180; struct string D.31179; struct string D.31178; struct string D.31177; struct string D.31176; struct string D.31175; struct string D.31174; struct string D.31173; struct basic_string D.31172; struct basic_string D.31171; bool _1; struct FILE * _2; char _3; int (*__vtbl_ptr_type) () * _4; int (*__vtbl_ptr_type) () _5; int (*__vtbl_ptr_type) () * _6; int (*__vtbl_ptr_type) () _7; struct cConfigOption * _8; struct cObject * _9; int (*__vtbl_ptr_type) () * _11; int (*__vtbl_ptr_type) () _12; int _13; int (*__vtbl_ptr_type) () * _14; int (*__vtbl_ptr_type) () _15; int (*__vtbl_ptr_type) () * _16; int (*__vtbl_ptr_type) () _17; int (*__vtbl_ptr_type) () * _18; int (*__vtbl_ptr_type) () _19; struct FILE * _20; struct FILE * _21; const char * _23; bool _24; const char * _25; bool _26; bool _27; bool _28; bool _29; bool _30; const char * _31; bool _32; bool _33; const char * _34; bool _35; bool _36; char * _67; struct cConfiguration * _69; long unsigned int _74; bool _76; bool _81; long unsigned int _83; bool _86; char * _88; char * _90; char * _92; int _95; struct cEnvir * _102; char * _103; char * _104; char * _107; long unsigned int _108; long unsigned int _109; long unsigned int _110; long unsigned int _112; bool _114; char * _115; char * _116; long unsigned int _117; long unsigned int _119; int _121; void * _126; char * _127; void * _133; char * _134; long unsigned int _144; long unsigned int _145; char * _146; long unsigned int _147; long unsigned int _148; char * _149; long unsigned int _150; long unsigned int _151; char * _152; long unsigned int _153; long unsigned int _154; char * _155; const char * _156; struct _Rb_tree_node_base * _157; char * _158; char * _162; char * _165; char _167; char * _169; char * _171; long unsigned int _172; long unsigned int _173; char * _174; long unsigned int _175; long unsigned int _176; char * _177; const char * _178; struct _Rb_tree_node_base * _179; char * _181; long unsigned int _182; long unsigned int _183; char * _184; long unsigned int _185; long unsigned int _186; char * _187; long unsigned int _188; long unsigned int _189; char * _190; long unsigned int _191; long unsigned int _192; char * _193; long unsigned int _194; long unsigned int _195; char * _196; long unsigned int _197; long unsigned int _198; char * _199; long unsigned int _200; long unsigned int _201; char * _202; long unsigned int _203; long unsigned int _204; char * _205; long unsigned int _206; long unsigned int _207; char * _208; long unsigned int _209; long unsigned int _210; struct _Rb_tree_node_base * _239; bool _259; void * PROF_336; struct cConfiguration * _338; struct cConfiguration * _340; char * _344; const char[16] * _345; uint128_t _346; long unsigned int _347; long unsigned int _348; long unsigned int _350; char _351; struct basic_string & _352; bool _354; char _355; char * _356; const char[16] * _357; uint128_t _358; long unsigned int _359; long unsigned int _360; long unsigned int _361; long unsigned int _362; long unsigned int _363; struct basic_string & _364; bool _366; bool _367; char _369; unsigned char _370; int _371; int _372; int _373; bool _379; bool _380; char _381; unsigned char _382; int _383; int _384; int _385; char _416; bool _422; const char * _425; bool _426; const char * _427; bool _428; <bb 2> [local count: 624228568]: _1 = this_64(D)->run.initialized; if (_1 != 0) goto <bb 4>; [67.00%] else goto <bb 3>; [33.00%] <bb 3> [local count: 205995424]: init (this_64(D)); <bb 4> [local count: 624228568]: _2 = this_64(D)->f; if (_2 == 0B) goto <bb 98>; [18.09%] else goto <bb 5>; [81.91%] <bb 5> [local count: 511305619]: if (name_66(D) == 0B) goto <bb 7>; [30.00%] else goto <bb 6>; [70.00%] <bb 6> [local count: 357913935]: _3 = *name_66(D); if (_3 == 0) goto <bb 7>; [50.00%] else goto <bb 8>; [50.00%] <bb 7> [local count: 332348652]: <bb 8> [local count: 511305619]: # name_22 = PHI <name_66(D)(6), "(unnamed)"(7)> _102 = evPtr; _4 = _102->_vptr.cEnvir; _5 = MEM[(int (*__vtbl_ptr_type) () *)_4 + 248B]; PROF_336 = [obj_type_ref] OBJ_TYPE_REF(_5;(struct cEnvir)_102->31); if (PROF_336 == getConfig) goto <bb 9>; [80.00%] else goto <bb 10>; [20.00%] <bb 9> [local count: 409044496]: _340 = MEM[(struct EnvirBase *)_102].cfg; goto <bb 11>; [100.00%] <bb 10> [local count: 102261128]: _338 = OBJ_TYPE_REF(_5;(struct cEnvir)_102->31) (_102); <bb 11> [local count: 511305619]: # _69 = PHI <_338(10), _340(9)> _6 = _69->D.4955._vptr.cObject; _7 = MEM[(int (*__vtbl_ptr_type) () *)_6 + 264B]; _8 = CFGID_SCALAR_RECORDING; _9 = &component_70(D)->D.5106.D.5083.D.4983.D.4767.D.4758; _11 = component_70(D)->D.5106.D.5083.D.4983.D.4767.D.4758._vptr.cObject; _12 = MEM[(int (*__vtbl_ptr_type) () *)_11 + 64B]; D.31173 = OBJ_TYPE_REF(_12;(struct cObject)_9->8) (_9); [return slot optimization] _350 = D.31173._M_string_length; if (_350 == 4611686018427387903) goto <bb 12>; [0.04%] else goto <bb 13>; [99.96%] <bb 12> [local count: 204523]: __throw_length_error ("basic_string::append"); <bb 13> [local count: 511101096]: _352 = _M_append (&D.31173, ".", 1); <bb 14> [local count: 511101096]: MEM[(struct _Alloc_hider *)&D.31172]._M_p = &MEM <char[16]> [(void *)&D.31172 + 16B]; _344 = MEM[(const struct basic_string *)_352]._M_dataplus._M_p; _345 = &MEM[(const struct basic_string *)_352].D.4725._M_local_buf; if (_344 == _345) goto <bb 15>; [30.00%] else goto <bb 16>; [70.00%] <bb 15> [local count: 153330329]: _346 = MEM <uint128_t> [(char * {ref-all})_352 + 16B]; MEM <uint128_t> [(char * {ref-all})&D.31172 + 16B] = _346; goto <bb 17>; [100.00%] <bb 16> [local count: 357770767]: D.31172._M_dataplus._M_p = _344; _347 = *_352.D.4725._M_allocated_capacity; D.31172.D.4725._M_allocated_capacity = _347; <bb 17> [local count: 511101096]: _348 = MEM[(const struct basic_string *)_352]._M_string_length; D.31172._M_string_length = _348; *_352._M_dataplus._M_p = _345; *_352._M_string_length = 0; MEM[(char_type &)_352 + 16] = 0; _361 = __builtin_strlen (name_22); _362 = D.31172._M_string_length; _363 = 4611686018427387903 - _362; if (_361 > _363) goto <bb 18>; [0.04%] else goto <bb 19>; [99.96%] <bb 18> [local count: 204439]: __throw_length_error ("basic_string::append"); <bb 19> [local count: 510896657]: _364 = _M_append (&D.31172, name_22, _361); <bb 20> [local count: 510896657]: MEM[(struct _Alloc_hider *)&D.31171]._M_p = &MEM <char[16]> [(void *)&D.31171 + 16B]; _356 = MEM[(const struct basic_string *)_364]._M_dataplus._M_p; _357 = &MEM[(const struct basic_string *)_364].D.4725._M_local_buf; if (_356 == _357) goto <bb 21>; [30.00%] else goto <bb 22>; [70.00%] <bb 21> [local count: 153268996]: _358 = MEM <uint128_t> [(char * {ref-all})_364 + 16B]; MEM <uint128_t> [(char * {ref-all})&D.31171 + 16B] = _358; goto <bb 23>; [100.00%] <bb 22> [local count: 357627661]: D.31171._M_dataplus._M_p = _356; _359 = *_364.D.4725._M_allocated_capacity; D.31171.D.4725._M_allocated_capacity = _359; <bb 23> [local count: 510896657]: _360 = MEM[(const struct basic_string *)_364]._M_string_length; D.31171._M_string_length = _360; *_364._M_dataplus._M_p = _357; *_364._M_string_length = 0; MEM[(char_type &)_364 + 16] = 0; _127 = D.31171._M_dataplus._M_p; _76 = OBJ_TYPE_REF(_7;(struct cConfiguration)_69->33) (_69, _127, _8, 0); <bb 24> [local count: 510896657]: _107 = D.31171._M_dataplus._M_p; if (&D.31171.D.4725._M_local_buf != _107) goto <bb 25>; [53.47%] else goto <bb 26>; [46.53%] <bb 25> [local count: 273176442]: _110 = D.31171.D.4725._M_allocated_capacity; _109 = _110 + 1; operator delete (_107, _109); <bb 26> [local count: 510896657]: D.31171 ={v} {CLOBBER}; D.31171 ={v} {CLOBBER}; _116 = D.31172._M_dataplus._M_p; if (&D.31172.D.4725._M_local_buf != _116) goto <bb 27>; [53.47%] else goto <bb 28>; [46.53%] <bb 27> [local count: 273176442]: _112 = D.31172.D.4725._M_allocated_capacity; _108 = _112 + 1; operator delete (_116, _108); <bb 28> [local count: 510896657]: D.31172 ={v} {CLOBBER}; D.31172 ={v} {CLOBBER}; _115 = D.31173._M_dataplus._M_p; if (&D.31173.D.4725._M_local_buf != _115) goto <bb 29>; [53.47%] else goto <bb 30>; [46.53%] <bb 29> [local count: 273176442]: _119 = D.31173.D.4725._M_allocated_capacity; _117 = _119 + 1; operator delete (_115, _117); <bb 30> [local count: 510896657]: D.31173 ={v} {CLOBBER}; D.31173 ={v} {CLOBBER}; if (_76 != 0) goto <bb 31>; [33.00%] else goto <bb 98>; [67.00%] <bb 31> [local count: 168595896]: _13 = this_64(D)->prec; _81 = opp_needsquotes (name_22); if (_81 != 0) goto <bb 32>; [33.00%] else goto <bb 33>; [67.00%] <bb 32> [local count: 55636644]: D.31174 = opp_quotestr (name_22); [return slot optimization] _104 = D.31174._M_dataplus._M_p; <bb 33> [local count: 168595896]: # _23 = PHI <name_22(31), _104(32)> # _24 = PHI <0(31), 1(32)> _14 = component_70(D)->D.5106.D.5083.D.4983.D.4767.D.4758._vptr.cObject; _15 = MEM[(int (*__vtbl_ptr_type) () *)_14 + 64B]; D.31175 = OBJ_TYPE_REF(_15;(struct cObject)_9->8) (_9); [return slot optimization] <bb 34> [local count: 168595896]: _103 = D.31175._M_dataplus._M_p; _86 = opp_needsquotes (_103); if (_86 != 0) goto <bb 35>; [50.00%] else goto <bb 38>; [50.00%] <bb 35> [local count: 84297948]: _16 = component_70(D)->D.5106.D.5083.D.4983.D.4767.D.4758._vptr.cObject; _17 = MEM[(int (*__vtbl_ptr_type) () *)_16 + 64B]; D.31177 = OBJ_TYPE_REF(_17;(struct cObject)_9->8) (_9); [return slot optimization] <bb 36> [local count: 84297948]: _134 = D.31177._M_dataplus._M_p; D.31176 = opp_quotestr (_134); [return slot optimization] <bb 37> [local count: 84297948]: _88 = D.31176._M_dataplus._M_p; goto <bb 40>; [100.00%] <bb 38> [local count: 84297948]: _18 = component_70(D)->D.5106.D.5083.D.4983.D.4767.D.4758._vptr.cObject; _19 = MEM[(int (*__vtbl_ptr_type) () *)_18 + 64B]; D.31178 = OBJ_TYPE_REF(_19;(struct cObject)_9->8) (_9); [return slot optimization] <bb 39> [local count: 84297948]: _92 = D.31178._M_dataplus._M_p; <bb 40> [local count: 168595896]: # _25 = PHI <_88(37), _92(39)> # _26 = PHI <1(37), 0(39)> # _29 = PHI <0(37), 1(39)> _20 = this_64(D)->f; _95 = fprintf (_20, "scalar %s \t%s \t%.*g\n", _25, _23, _13, value_93(D)); <bb 41> [local count: 168595896]: if (_29 != 0) goto <bb 42>; [50.00%] else goto <bb 45>; [50.00%] <bb 42> [local count: 84297948]: _90 = D.31178._M_dataplus._M_p; if (&D.31178.D.4725._M_local_buf != _90) goto <bb 43>; [53.47%] else goto <bb 44>; [46.53%] <bb 43> [local count: 45074110]: _83 = D.31178.D.4725._M_allocated_capacity; _74 = _83 + 1; operator delete (_90, _74); <bb 44> [local count: 84297948]: D.31178 ={v} {CLOBBER}; <bb 45> [local count: 168595896]: D.31178 ={v} {CLOBBER}; if (_26 != 0) goto <bb 47>; [50.00%] else goto <bb 46>; [50.00%] <bb 46> [local count: 84297948]: D.31176 ={v} {CLOBBER}; goto <bb 52>; [100.00%] <bb 47> [local count: 84297948]: _67 = D.31176._M_dataplus._M_p; if (&D.31176.D.4725._M_local_buf != _67) goto <bb 48>; [53.47%] else goto <bb 49>; [46.53%] <bb 48> [local count: 45074110]: _144 = D.31176.D.4725._M_allocated_capacity; _145 = _144 + 1; operator delete (_67, _145); <bb 49> [local count: 84297948]: D.31176 ={v} {CLOBBER}; D.31176 ={v} {CLOBBER}; _146 = D.31177._M_dataplus._M_p; if (&D.31177.D.4725._M_local_buf != _146) goto <bb 50>; [53.47%] else goto <bb 51>; [46.53%] <bb 50> [local count: 45074110]: _147 = D.31177.D.4725._M_allocated_capacity; _148 = _147 + 1; operator delete (_146, _148); <bb 51> [local count: 84297948]: D.31177 ={v} {CLOBBER}; <bb 52> [local count: 168595896]: D.31177 ={v} {CLOBBER}; _149 = D.31175._M_dataplus._M_p; if (&D.31175.D.4725._M_local_buf != _149) goto <bb 53>; [53.47%] else goto <bb 54>; [46.53%] <bb 53> [local count: 90148226]: _150 = D.31175.D.4725._M_allocated_capacity; _151 = _150 + 1; operator delete (_149, _151); <bb 54> [local count: 168595896]: D.31175 ={v} {CLOBBER}; D.31175 ={v} {CLOBBER}; if (_24 != 0) goto <bb 55>; [50.00%] else goto <bb 58>; [50.00%] <bb 55> [local count: 84297948]: _152 = D.31174._M_dataplus._M_p; if (&D.31174.D.4725._M_local_buf != _152) goto <bb 56>; [53.47%] else goto <bb 57>; [46.53%] <bb 56> [local count: 45074110]: _153 = D.31174.D.4725._M_allocated_capacity; _154 = _153 + 1; operator delete (_152, _154); <bb 57> [local count: 84297948]: D.31174 ={v} {CLOBBER}; <bb 58> [local count: 168595896]: D.31174 ={v} {CLOBBER}; if (_95 < 0) goto <bb 59>; [0.00%] else goto <bb 63>; [100.00%] <bb 59> [count: 0]: _133 = __cxa_allocate_exception (128); _155 = MEM[(const struct opp_string *)this_64(D) + 120B].str; if (_155 != 0B) goto <bb 61>; [0.00%] else goto <bb 60>; [0.00%] <bb 60> [count: 0]: <bb 61> [count: 0]: # _156 = PHI <""(60), _155(59)> __ct_comp (_133, "Cannot write output scalar file `%s\'", _156); <bb 62> [count: 0]: __cxa_throw (_133, &_ZTI13cRuntimeError, __dt_comp ); <bb 63> [local count: 168595896]: if (attributes_101(D) != 0B) goto <bb 64>; [70.00%] else goto <bb 98>; [30.00%] <bb 64> [local count: 118017131]: _157 = MEM[(struct _Rb_tree *)attributes_101(D)]._M_impl.D.5999._M_header._M_left; _239 = &MEM[(struct _Rb_tree *)attributes_101(D)]._M_impl.D.5999._M_header; if (_157 != _239) goto <bb 152>; [89.00%] else goto <bb 98>; [11.00%] <bb 152> [local count: 105035247]: <bb 65> [local count: 954866036]: # it$_M_node_246 = PHI <_179(153), _157(152)> _158 = MEM[(const struct opp_string *)it$_M_node_246 + 40B].str; if (_158 != 0B) goto <bb 66>; [70.00%] else goto <bb 72>; [30.00%] <bb 66> [local count: 668406230]: _416 = MEM[(const char *)_158]; if (_416 == 0) goto <bb 72>; [34.00%] else goto <bb 67>; [66.00%] <bb 67> [local count: 441148109]: <bb 68> [local count: 5855175980]: # _351 = PHI <_369(155), _416(67)> # s_349 = PHI <s_375(155), _158(67)> _370 = (unsigned char) _351; _371 = (int) _370; _372 = isspace (_371); _114 = _351 == 92; _380 = _372 != 0; _426 = _114 | _380; _366 = _351 == 34; _354 = _366 | _426; if (_354 != 0) goto <bb 71>; [6.46%] else goto <bb 69>; [93.54%] <bb 69> [local count: 5477173733]: _373 = iscntrl (_371); if (_373 != 0) goto <bb 71>; [2.20%] else goto <bb 70>; [97.80%] <bb 70> [local count: 5545739396]: s_375 = s_349 + 1; _369 = *s_375; if (_369 != 0) goto <bb 155>; [97.80%] else goto <bb 71>; [2.20%] <bb 155> [local count: 5423733130]: goto <bb 68>; [100.00%] <bb 71> [local count: 620506333]: # _367 = PHI <1(69), 0(70), 1(68)> if (_367 != 0) goto <bb 72>; [50.79%] else goto <bb 74>; [49.21%] <bb 72> [local count: 477433021]: # _425 = PHI <_158(71), _158(66), ""(65)> D.31179 = opp_quotestr (_425); [return slot optimization] <bb 73> [local count: 477433021]: _162 = D.31179._M_dataplus._M_p; <bb 74> [local count: 954866047]: # _31 = PHI <_162(73), _158(71)> # _32 = PHI <1(73), 0(71)> _165 = MEM[(const struct opp_string *)it$_M_node_246 + 32B].str; if (_165 != 0B) goto <bb 75>; [70.00%] else goto <bb 81>; [30.00%] <bb 75> [local count: 668406236]: _355 = MEM[(const char *)_165]; if (_355 == 0) goto <bb 81>; [34.00%] else goto <bb 76>; [66.00%] <bb 76> [local count: 441148113]: <bb 77> [local count: 5855176046]: # _167 = PHI <_381(154), _355(76)> # s_463 = PHI <s_387(154), _165(76)> _382 = (unsigned char) _167; _383 = (int) _382; _384 = isspace (_383); _428 = _167 == 92; _259 = _384 != 0; _27 = _259 | _428; _28 = _167 == 34; _30 = _27 | _28; if (_30 != 0) goto <bb 80>; [6.46%] else goto <bb 78>; [93.54%] <bb 78> [local count: 5477173800]: _385 = iscntrl (_383); if (_385 != 0) goto <bb 80>; [2.20%] else goto <bb 79>; [97.80%] <bb 79> [local count: 5545739454]: s_387 = s_463 + 1; _381 = *s_387; if (_381 != 0) goto <bb 154>; [97.80%] else goto <bb 80>; [2.20%] <bb 154> [local count: 5423733187]: goto <bb 77>; [100.00%] <bb 80> [local count: 620506340]: # _379 = PHI <1(78), 0(79), 1(77)> if (_379 != 0) goto <bb 81>; [50.79%] else goto <bb 83>; [49.21%] <bb 81> [local count: 477433026]: # _427 = PHI <_165(80), _165(75), ""(74)> D.31180 = opp_quotestr (_427); [return slot optimization] <bb 82> [local count: 477433026]: _169 = D.31180._M_dataplus._M_p; <bb 83> [local count: 954866058]: # _34 = PHI <_169(82), _165(80)> # _35 = PHI <1(82), 0(80)> _21 = this_64(D)->f; _121 = fprintf (_21, "attr %s %s\n", _34, _31); <bb 84> [local count: 954866058]: if (_35 != 0) goto <bb 85>; [50.00%] else goto <bb 88>; [50.00%] <bb 85> [local count: 477433026]: _171 = D.31180._M_dataplus._M_p; if (&D.31180.D.4725._M_local_buf != _171) goto <bb 86>; [53.47%] else goto <bb 87>; [46.53%] <bb 86> [local count: 255283437]: _172 = D.31180.D.4725._M_allocated_capacity; _173 = _172 + 1; operator delete (_171, _173); <bb 87> [local count: 477433026]: D.31180 ={v} {CLOBBER}; <bb 88> [local count: 954866058]: D.31180 ={v} {CLOBBER}; if (_32 != 0) goto <bb 89>; [50.00%] else goto <bb 92>; [50.00%] <bb 89> [local count: 477433026]: _174 = D.31179._M_dataplus._M_p; if (&D.31179.D.4725._M_local_buf != _174) goto <bb 90>; [53.47%] else goto <bb 91>; [46.53%] <bb 90> [local count: 255283437]: _175 = D.31179.D.4725._M_allocated_capacity; _176 = _175 + 1; operator delete (_174, _176); <bb 91> [local count: 477433026]: D.31179 ={v} {CLOBBER}; <bb 92> [local count: 954866058]: D.31179 ={v} {CLOBBER}; if (_121 < 0) goto <bb 93>; [0.00%] else goto <bb 97>; [100.00%] <bb 93> [count: 0]: _126 = __cxa_allocate_exception (128); _177 = MEM[(const struct opp_string *)this_64(D) + 120B].str; if (_177 != 0B) goto <bb 95>; [0.00%] else goto <bb 94>; [0.00%] <bb 94> [count: 0]: <bb 95> [count: 0]: # _178 = PHI <""(94), _177(93)> __ct_comp (_126, "Cannot write output scalar file `%s\'", _178); <bb 96> [count: 0]: __cxa_throw (_126, &_ZTI13cRuntimeError, __dt_comp ); <bb 97> [local count: 954866058]: _179 = _Rb_tree_increment (it$_M_node_246); if (_179 != _239) goto <bb 153>; [89.00%] else goto <bb 98>; [11.00%] <bb 153> [local count: 849830792]: goto <bb 65>; [100.00%] <bb 98> [local count: 623819628]: return; <bb 99> [count: 0]: <L0>: _181 = D.31171._M_dataplus._M_p; if (&D.31171.D.4725._M_local_buf != _181) goto <bb 100>; [0.00%] else goto <bb 101>; [0.00%] <bb 100> [count: 0]: _182 = D.31171.D.4725._M_allocated_capacity; _183 = _182 + 1; operator delete (_181, _183); <bb 101> [count: 0]: D.31171 ={v} {CLOBBER}; resx 6 <bb 102> [count: 0]: <L1>: D.31171 ={v} {CLOBBER}; _184 = D.31172._M_dataplus._M_p; if (&D.31172.D.4725._M_local_buf != _184) goto <bb 103>; [0.00%] else goto <bb 104>; [0.00%] <bb 103> [count: 0]: _185 = D.31172.D.4725._M_allocated_capacity; _186 = _185 + 1; operator delete (_184, _186); <bb 104> [count: 0]: D.31172 ={v} {CLOBBER}; resx 4 <bb 105> [count: 0]: <L2>: D.31172 ={v} {CLOBBER}; _187 = D.31173._M_dataplus._M_p; if (&D.31173.D.4725._M_local_buf != _187) goto <bb 106>; [0.00%] else goto <bb 107>; [0.00%] <bb 106> [count: 0]: _188 = D.31173.D.4725._M_allocated_capacity; _189 = _188 + 1; operator delete (_187, _189); <bb 107> [count: 0]: D.31173 ={v} {CLOBBER}; resx 2 <bb 108> [count: 0]: <L14>: resx 22 <bb 109> [count: 0]: <L13>: D.31178 ={v} {CLOBBER}; resx 20 <bb 110> [count: 0]: <L19>: D.31176 ={v} {CLOBBER}; goto <bb 131>; [100.00%] <bb 111> [count: 0]: <L16>: resx 22 <bb 112> [count: 0]: <L15>: D.31178 ={v} {CLOBBER}; resx 20 <bb 113> [count: 0]: <L18>: D.31176 ={v} {CLOBBER}; goto <bb 131>; [100.00%] <bb 114> [count: 0]: <L17>: resx 22 <bb 115> [count: 0]: <L20>: D.31178 ={v} {CLOBBER}; resx 20 <bb 116> [count: 0]: <L21>: D.31176 ={v} {CLOBBER}; goto <bb 128>; [100.00%] <bb 117> [count: 0]: <L3>: if (_29 != 0) goto <bb 118>; [0.00%] else goto <bb 121>; [0.00%] <bb 118> [count: 0]: _190 = D.31178._M_dataplus._M_p; if (&D.31178.D.4725._M_local_buf != _190) goto <bb 119>; [0.00%] else goto <bb 120>; [0.00%] <bb 119> [count: 0]: _191 = D.31178.D.4725._M_allocated_capacity; _192 = _191 + 1; operator delete (_190, _192); <bb 120> [count: 0]: D.31178 ={v} {CLOBBER}; <bb 121> [count: 0]: resx 22 <bb 122> [count: 0]: <L4>: D.31178 ={v} {CLOBBER}; if (_26 != 0) goto <bb 123>; [0.00%] else goto <bb 126>; [0.00%] <bb 123> [count: 0]: _193 = D.31176._M_dataplus._M_p; if (&D.31176.D.4725._M_local_buf != _193) goto <bb 124>; [0.00%] else goto <bb 125>; [0.00%] <bb 124> [count: 0]: _194 = D.31176.D.4725._M_allocated_capacity; _195 = _194 + 1; operator delete (_193, _195); <bb 125> [count: 0]: D.31176 ={v} {CLOBBER}; <bb 126> [count: 0]: # _422 = PHI <_26(122), 1(125)> resx 20 <bb 127> [count: 0]: <L5>: D.31176 ={v} {CLOBBER}; if (_422 != 0) goto <bb 128>; [0.00%] else goto <bb 131>; [0.00%] <bb 128> [count: 0]: _196 = D.31177._M_dataplus._M_p; if (&D.31177.D.4725._M_local_buf != _196) goto <bb 129>; [0.00%] else goto <bb 130>; [0.00%] <bb 129> [count: 0]: _197 = D.31177.D.4725._M_allocated_capacity; _198 = _197 + 1; operator delete (_196, _198); <bb 130> [count: 0]: D.31177 ={v} {CLOBBER}; <bb 131> [count: 0]: resx 18 <bb 132> [count: 0]: <L6>: D.31177 ={v} {CLOBBER}; _199 = D.31175._M_dataplus._M_p; if (&D.31175.D.4725._M_local_buf != _199) goto <bb 133>; [0.00%] else goto <bb 134>; [0.00%] <bb 133> [count: 0]: _200 = D.31175.D.4725._M_allocated_capacity; _201 = _200 + 1; operator delete (_199, _201); <bb 134> [count: 0]: D.31175 ={v} {CLOBBER}; resx 16 <bb 135> [count: 0]: <L7>: D.31175 ={v} {CLOBBER}; if (_24 != 0) goto <bb 136>; [0.00%] else goto <bb 139>; [0.00%] <bb 136> [count: 0]: _202 = D.31174._M_dataplus._M_p; if (&D.31174.D.4725._M_local_buf != _202) goto <bb 137>; [0.00%] else goto <bb 138>; [0.00%] <bb 137> [count: 0]: _203 = D.31174.D.4725._M_allocated_capacity; _204 = _203 + 1; operator delete (_202, _204); <bb 138> [count: 0]: D.31174 ={v} {CLOBBER}; <bb 139> [count: 0]: <L8>: resx 14 <bb 140> [count: 0]: <L9>: __cxa_free_exception (_133); resx 33 <bb 141> [count: 0]: # _36 = PHI <0(81), _35(83)> <L10>: if (_36 != 0) goto <bb 142>; [0.00%] else goto <bb 145>; [0.00%] <bb 142> [count: 0]: _205 = D.31180._M_dataplus._M_p; if (&D.31180.D.4725._M_local_buf != _205) goto <bb 143>; [0.00%] else goto <bb 144>; [0.00%] <bb 143> [count: 0]: _206 = D.31180.D.4725._M_allocated_capacity; _207 = _206 + 1; operator delete (_205, _207); <bb 144> [count: 0]: D.31180 ={v} {CLOBBER}; <bb 145> [count: 0]: resx 39 <bb 146> [count: 0]: # _33 = PHI <0(72), _32(145)> <L11>: D.31180 ={v} {CLOBBER}; if (_33 != 0) goto <bb 147>; [0.00%] else goto <bb 150>; [0.00%] <bb 147> [count: 0]: _208 = D.31179._M_dataplus._M_p; if (&D.31179.D.4725._M_local_buf != _208) goto <bb 148>; [0.00%] else goto <bb 149>; [0.00%] <bb 148> [count: 0]: _209 = D.31179.D.4725._M_allocated_capacity; _210 = _209 + 1; operator delete (_208, _210); <bb 149> [count: 0]: D.31179 ={v} {CLOBBER}; <bb 150> [count: 0]: resx 37 <bb 151> [count: 0]: <L12>: __cxa_free_exception (_126); resx 44 } and here: (gdb) bt #0 gimple_call_arg_flags (stmt=0x7ffff574dd10, arg=2) at /home/marxin/Programming/gcc/gcc/gimple.c:1610 #1 0x0000000000b9883b in analyze_ssa_name_flags (name=0x7ffff5d38d80, lattice=..., depth=3, ipa=false) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:1825 #2 0x0000000000b98bd5 in analyze_ssa_name_flags (name=0x7ffff5d38c60, lattice=..., depth=2, ipa=false) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:1933 #3 0x0000000000b98ddb in analyze_ssa_name_flags (name=0x7ffff57cdc60, lattice=..., depth=1, ipa=false) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:1940 #4 0x0000000000b98fc7 in merge_call_lhs_flags (call=<optimized out>, arg=<optimized out>, index=<optimized out>, deref=<optimized out>, lattice=..., depth=0, ipa=false) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:1684 #5 0x0000000000b98829 in merge_call_lhs_flags (ipa=<optimized out>, depth=<optimized out>, lattice=..., deref=<optimized out>, index=<optimized out>, arg=<optimized out>, call=<optimized out>) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:1838 #6 analyze_ssa_name_flags (name=0x7ffff57cd750, lattice=..., depth=0, ipa=false) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:1859 #7 0x0000000000b9de6e in analyze_parms (ipa=<optimized out>, summary_lto=0x0, summary=0x7ffff6eed9c0) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:2051 #8 analyze_function (f=<optimized out>, ipa=<optimized out>) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:2227 #9 0x0000000000b9fa02 in (anonymous namespace)::pass_modref::execute (this=<optimized out>, f=<optimized out>) at /home/marxin/Programming/gcc/gcc/ipa-modref.c:3087 #10 0x0000000000cf611a in execute_one_pass (pass=0x282e820) at /home/marxin/Programming/gcc/gcc/passes.c:2567 #11 0x0000000000cf6a13 in execute_pass_list_1 (pass=0x282e820) at /home/marxin/Programming/gcc/gcc/passes.c:2656 #12 0x0000000000cf6a25 in execute_pass_list_1 (pass=0x282ba00) at /home/marxin/Programming/gcc/gcc/passes.c:2657 #13 0x0000000000cf6a56 in execute_pass_list (fn=0x7ffff71339c0, pass=<optimized out>) at /home/marxin/Programming/gcc/gcc/passes.c:2667 #14 0x00000000009424f5 in cgraph_node::expand (this=0x7ffff6f58880) at /home/marxin/Programming/gcc/gcc/context.h:48 #15 cgraph_node::expand (this=0x7ffff6f58880) at /home/marxin/Programming/gcc/gcc/cgraphunit.c:1781 #16 0x0000000000943b6f in expand_all_functions () at /home/marxin/Programming/gcc/gcc/cgraphunit.c:1992 #17 symbol_table::compile (this=0x7ffff765a000) at /home/marxin/Programming/gcc/gcc/cgraphunit.c:2356 #18 symbol_table::compile (this=0x7ffff765a000) at /home/marxin/Programming/gcc/gcc/cgraphunit.c:2267 #19 0x0000000000896c80 in lto_main () at /home/marxin/Programming/gcc/gcc/lto/lto.c:653 #20 0x0000000000ddcd24 in compile_file () at /home/marxin/Programming/gcc/gcc/toplev.c:452 #21 0x000000000086d91b in do_compile (no_backend=false) at /home/marxin/Programming/gcc/gcc/toplev.c:2154 #22 toplev::main (this=this@entry=0x7fffffffccfe, argc=<optimized out>, argc@entry=198, argv=<optimized out>, argv@entry=0x7fffffffce48) at /home/marxin/Programming/gcc/gcc/toplev.c:2306 #23 0x0000000000870fd5 in main (argc=198, argv=0x7fffffffce48) at /home/marxin/Programming/gcc/gcc/main.c:39 (gdb) p debug_gimple_stmt(stmt) # .MEM_110 = VDEF <.MEM_68> _M_construct.constprop (_30(D), s_88, _92); __attribute__((abi_tag ("cxx11"))) struct string getAsString (struct cConfiguration * const this, const char * objectFullPath, struct cConfigOption * option, const char * fallbackValue) { long int D.32273; const char * s; int (*__vtbl_ptr_type) () * _1; int (*__vtbl_ptr_type) () _2; int (*__vtbl_ptr_type) () * _3; int (*__vtbl_ptr_type) () _4; struct cNamedObject * _5; int (*__vtbl_ptr_type) () * _6; int (*__vtbl_ptr_type) () _7; void * _8; int (*__vtbl_ptr_type) () * _9; int (*__vtbl_ptr_type) () _10; const char * _11; struct cNamedObject * _12; int (*__vtbl_ptr_type) () * _13; int (*__vtbl_ptr_type) () _14; long unsigned int _22; const char * _24; const char * _26; const char * _29; struct string & _30(D); struct exception * _34; void * _36; const char * _39; char * _44; const char * _45; void * PROF_63; const char * _65; void * PROF_67; const char * _69; const char * _71; int (*__vtbl_ptr_type) () * _73; int (*__vtbl_ptr_type) () _74; const struct KeyValue2 & _75; const struct KeyValue1 * _76; int (*__vtbl_ptr_type) () * _77; int (*__vtbl_ptr_type) () _78; const char * _79; char * _80; void * PROF_82; const char * _84; char * _86; char _89; long unsigned int _91; const char * _92; char[16] * _99; long int _113; <bb 2> [local count: 1073741824]: assertType (option_19(D), 1, 3); _1 = this_21(D)->D.4954._vptr.cObject; _2 = MEM[(int (*__vtbl_ptr_type) () *)_1 + 152B]; _22 = MEM[(const struct basic_string *)option_19(D) + 80B]._M_string_length; if (_22 == 0) goto <bb 43>; [29.00%] else goto <bb 3>; [71.00%] <bb 43> [local count: 311385128]: goto <bb 4>; [100.00%] <bb 3> [local count: 762356697]: _44 = MEM[(const struct basic_string *)option_19(D) + 80B]._M_dataplus._M_p; <bb 4> [local count: 1073741824]: # _45 = PHI <0B(43), _44(3)> _24 = OBJ_TYPE_REF(_2;(struct cConfiguration)this_21(D)->19) (this_21(D), _45); <bb 5> [local count: 1073741824]: _3 = this_21(D)->D.4954._vptr.cObject; _4 = MEM[(int (*__vtbl_ptr_type) () *)_3 + 176B]; _5 = &option_19(D)->D.5508.D.4983.D.4767; _6 = option_19(D)->D.5508.D.4983.D.4767.D.4758._vptr.cObject; _7 = MEM[(int (*__vtbl_ptr_type) () *)_6 + 48B]; PROF_63 = [obj_type_ref] OBJ_TYPE_REF(_7;(struct cNamedObject)_5->6); if (PROF_63 == getName) goto <bb 6>; [80.00%] else goto <bb 7>; [20.00%] <bb 6> [local count: 858993457]: _71 = MEM[(const struct cNamedObject *)option_19(D)].namep; if (_71 != 0B) goto <bb 44>; [70.00%] else goto <bb 9>; [30.00%] <bb 44> [local count: 601295422]: goto <bb 10>; [100.00%] <bb 7> [local count: 214748368]: _65 = OBJ_TYPE_REF(_7;(struct cNamedObject)_5->6) (_5); <bb 45> [local count: 214748368]: goto <bb 10>; [100.00%] <bb 8> [count: 0]: <L6>: goto <bb 32>; [100.00%] <bb 9> [local count: 257698035]: <bb 10> [local count: 1073741824]: # _26 = PHI <_65(45), _71(44), ""(9)> PROF_67 = [obj_type_ref] OBJ_TYPE_REF(_4;(struct cConfiguration)this_21(D)->22); if (PROF_67 == getPerObjectConfigValue) goto <bb 11>; [80.00%] else goto <bb 20>; [20.00%] <bb 11> [local count: 858993457]: _73 = MEM[(const struct SectionBasedConfiguration *)this_21(D)].D.5740.D.4958.D.4955._vptr.cObject; _74 = MEM[(int (*__vtbl_ptr_type) () *)_73 + 184B]; _75 = OBJ_TYPE_REF(_74;(struct SectionBasedConfiguration)this_21(D)->23) (this_21(D), objectFullPath_27(D), _26); goto <bb 13>; [100.00%] <bb 12> [count: 0]: <L7>: goto <bb 32>; [100.00%] <bb 13> [local count: 858993457]: _76 = &_75->D.10348; _77 = _75->D.10348.D.5862._vptr.KeyValue; _78 = MEM[(int (*__vtbl_ptr_type) () *)_77 + 16B]; PROF_82 = [obj_type_ref] OBJ_TYPE_REF(_78;(struct KeyValue1)_76->2); if (PROF_82 == what) goto <bb 14>; [80.00%] else goto <bb 15>; [20.00%] <bb 14> [local count: 687194763]: _86 = MEM[(const struct basic_string *)_75 + 16B]._M_dataplus._M_p; goto <bb 17>; [100.00%] <bb 15> [local count: 171798694]: _84 = OBJ_TYPE_REF(_78;(struct KeyValue1)_76->2) (_76); goto <bb 46>; [100.00%] <bb 16> [count: 0]: <L8>: goto <bb 32>; [100.00%] <bb 46> [local count: 171798694]: <bb 17> [local count: 858993457]: # _79 = PHI <_84(46), _86(14)> if (_79 != 0B) goto <bb 19>; [85.10%] else goto <bb 47>; [14.90%] <bb 47> [local count: 127990022]: <bb 18> [local count: 322122544]: if (_24 == 0B) goto <bb 23>; [17.43%] else goto <bb 48>; [82.57%] <bb 19> [local count: 731003435]: _80 = MEM[(const struct basic_string *)_75 + 48B]._M_dataplus._M_p; goto <bb 22>; [100.00%] <bb 20> [local count: 214748368]: _69 = OBJ_TYPE_REF(_4;(struct cConfiguration)this_21(D)->22) (this_21(D), objectFullPath_27(D), _26); goto <bb 49>; [100.00%] <bb 21> [count: 0]: <L9>: goto <bb 32>; [100.00%] <bb 49> [local count: 214748368]: <bb 22> [local count: 945751802]: # _29 = PHI <_69(49), _80(19)> if (_29 == 0B) goto <bb 50>; [19.04%] else goto <bb 51>; [80.96%] <bb 51> [local count: 765641716]: goto <bb 26>; [100.00%] <bb 50> [local count: 180110086]: goto <bb 18>; [100.00%] <bb 23> [local count: 56145959]: __ct_base .constprop (_30(D), fallbackValue_31(D)); goto <bb 52>; [100.00%] <bb 24> [count: 0]: <L10>: goto <bb 32>; [100.00%] <bb 52> [local count: 56145959]: <bb 25> [local count: 1073741825]: return _30(D); <bb 48> [local count: 265976585]: <bb 26> [local count: 1017595866]: # s_88 = PHI <_29(51), _24(48)> _89 = *s_88; if (_89 == 34) goto <bb 27>; [34.00%] else goto <bb 29>; [66.00%] <bb 27> [local count: 345982598]: *_30(D) = opp_parsequotedstr (s_88); [return slot optimization] <bb 53> [local count: 345982598]: goto <bb 25>; [100.00%] <bb 28> [count: 0]: <L11>: goto <bb 32>; [100.00%] <bb 29> [local count: 671613268]: _99 = &MEM[(struct basic_string *)_30(D)].D.4725._M_local_buf; MEM[(struct _Alloc_hider *)_30(D)]._M_p = _99; _91 = __builtin_strlen (s_88); _92 = s_88 + _91; _M_construct.constprop (_30(D), s_88, _92); <bb 54> [local count: 671613268]: goto <bb 25>; [100.00%] <bb 30> [count: 0]: <L12>: goto <bb 32>; [100.00%] <bb 31> [count: 0]: <L5>: <bb 32> [count: 0]: <L0>: _113 = __builtin_eh_filter (1); if (_113 == 1) goto <bb 34>; [0.00%] else goto <bb 33>; [0.00%] <bb 33> [count: 0]: <L4>: resx 1 <bb 34> [count: 0]: <L1>: _8 = __builtin_eh_pointer (1); _34 = __cxa_begin_catch (_8); _36 = __cxa_allocate_exception (128); _9 = _34->_vptr.exception; _10 = MEM[(int (*__vtbl_ptr_type) () *)_9 + 16B]; _11 = OBJ_TYPE_REF(_10;(struct exception)_34->2) (_34); _12 = &option_19(D)->D.5508.D.4983.D.4767; _13 = option_19(D)->D.5508.D.4983.D.4767.D.4758._vptr.cObject; _14 = MEM[(int (*__vtbl_ptr_type) () *)_13 + 48B]; _39 = OBJ_TYPE_REF(_14;(struct cNamedObject)_12->6) (_12); <bb 35> [count: 0]: __ct_comp (_36, "Error getting option %s= from the configuration: %s", _39, _11); goto <bb 37>; [0.00%] <bb 36> [count: 0]: <L14>: goto <bb 39>; [100.00%] <bb 37> [count: 0]: __cxa_throw (_36, &_ZTI13cRuntimeError, __dt_comp ); <bb 38> [count: 0]: <L13>: <bb 39> [count: 0]: <L2>: __cxa_free_exception (_36); resx 3 <bb 40> [count: 0]: <L16>: goto <bb 42>; [100.00%] <bb 41> [count: 0]: <L15>: <bb 42> [count: 0]: <L3>: __cxa_end_catch (); resx 2 }
next prev parent reply other threads:[~2021-11-02 20:06 UTC|newest] Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-02 18:24 [Bug tree-optimization/103050] New: " marxin at gcc dot gnu.org 2021-11-02 18:29 ` [Bug tree-optimization/103050] " hubicka at gcc dot gnu.org 2021-11-02 18:32 ` marxin at gcc dot gnu.org 2021-11-02 18:39 ` marxin at gcc dot gnu.org 2021-11-02 18:41 ` marxin at gcc dot gnu.org 2021-11-02 18:47 ` marxin at gcc dot gnu.org 2021-11-02 19:53 ` marxin at gcc dot gnu.org 2021-11-02 19:58 ` marxin at gcc dot gnu.org 2021-11-02 20:06 ` marxin at gcc dot gnu.org [this message] 2021-11-02 20:08 ` marxin at gcc dot gnu.org 2021-11-02 20:35 ` marxin at gcc dot gnu.org 2021-11-02 20:35 ` marxin at gcc dot gnu.org 2021-11-03 8:11 ` [Bug ipa/103050] " marxin at gcc dot gnu.org
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