https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64982
Bug ID: 64982
Summary: [5 Regression] Many g++ failures on
x86_64-apple-darwin14 with -m32.
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: dominiq at lps dot ens.fr
CC: fxcoudert at gcc dot gnu.org, howarth at bromo dot
med.uc.edu,
hubicka at gcc dot gnu.org, iains at gcc dot gnu.org
Host: x86_64-apple-darwin14
Target: x86_64-apple-darwin14
Build: x86_64-apple-darwin14
At revision r220526 there are many g++ failures on x86_64-apple-darwin14 with
-m32: see https://gcc.gnu.org/ml/gcc-testresults/2015-02/msg00974.html.
Revision r220506 is OK. The ICEs are of the kind
/opt/gcc/_clean/gcc/testsuite/g++.dg/abi/covariant2.C:29:28: internal compiler
error: Segmentation fault: 11
c6* c24::f6() { return 0; }
^
and the backtrace is
* thread #1: tid = 0x6290629, 0x0000000100679ae7
cc1plus`cgraph_node::function_symbol(this=<unavailable>,
availability=0x0000000000000000) + 71 at cgraph.c:3129, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10)
frame #0: 0x0000000100679ae7
cc1plus`cgraph_node::function_symbol(this=<unavailable>,
availability=0x0000000000000000) + 71 at cgraph.c:3129
3126
3127 while (node->thunk.thunk_p)
3128 {
-> 3129 node = node->callees->callee;
3130 if (availability)
3131 {
3132 enum availability a;
(lldb) bt
* thread #1: tid = 0x6290629, 0x0000000100679ae7
cc1plus`cgraph_node::function_symbol(this=<unavailable>,
availability=0x0000000000000000) + 71 at cgraph.c:3129, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10)
* frame #0: 0x0000000100679ae7
cc1plus`cgraph_node::function_symbol(this=<unavailable>,
availability=0x0000000000000000) + 71 at cgraph.c:3129
frame #1: 0x0000000100eb8281
cc1plus`ix86_function_regparm(type=0x0000000142776a80, decl=0x0000000142777bd0)
+ 305 at i386.c:5774
frame #2: 0x0000000100eba687
cc1plus`x86_can_output_mi_thunk((null)=<unavailable>, (null)=<unavailable>,
vcall_offset=-16, function=0x0000000142777bd0) + 55 at i386.c:42800
frame #3: 0x000000010019c0f8
cc1plus`use_thunk(thunk_fndecl=0x0000000142777e58, emit_p=<unavailable>) + 1416
at method.c:422
frame #4: 0x00000001001b7ddd
cc1plus`emit_associated_thunks(fn=<unavailable>) + 509 at semantics.c:4031
frame #5: 0x00000001001b828b
cc1plus`expand_or_defer_fn(fn=0x0000000142777288) + 59 at semantics.c:4122
frame #6: 0x000000010014aed8
cc1plus`cp_parser_function_definition_after_declarator(parser=0x0000000142767000,
inline_p=<unavailable>) + 248 at parser.c:23481
frame #7: 0x000000010014be27 cc1plus`cp_parser_init_declarator + 3207 at
parser.c:23385
frame #8: 0x000000010014d54e
cc1plus`cp_parser_simple_declaration(parser=0x0000000142767000,
function_definition_allowed_p=true, maybe_range_for_decl=0x0000000000000000) +
558 at parser.c:11601
frame #9: 0x000000010014d904
cc1plus`cp_parser_block_declaration(parser=0x0000000142767000,
statement_p=<unavailable>) + 116 at parser.c:11475
frame #10: 0x00000001001568ca
cc1plus`cp_parser_declaration(parser=0x0000000142767000) + 394 at
parser.c:11372
frame #11: 0x0000000100156b7d
cc1plus`cp_parser_declaration_seq_opt(parser=0x0000000142767000) + 125 at
parser.c:11258
frame #12: 0x0000000100156ed2 cc1plus`c_parse_file() + 22 at parser.c:4109
frame #13: 0x0000000100156ebc cc1plus`c_parse_file() + 604
frame #14: 0x00000001002a1e76 cc1plus`c_common_parse_file() + 246 at
c-opts.c:1052
frame #15: 0x0000000100b6921c cc1plus`compile_file + 44 at toplev.c:594
frame #16: 0x0000000100fe6507 cc1plus`toplev::main(int, char**) + 1288 at
toplev.c:2066
frame #17: 0x0000000100fe5fff cc1plus`toplev::main(this=<unavailable>,
argc=4, argv=0x00007fff5fbff328) + 719
frame #18: 0x0000000100fe720c cc1plus`main(argc=<unavailable>,
argv=<unavailable>) + 44 at main.c:39
