http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59066
Volker Reichelt reichelt at gcc dot gnu.org changed:
What|Removed |Added
Keywords||ice-on-valid-code
Status|UNCONFIRMED |NEW
Last reconfirmed||2014-02-14
CC||reichelt at gcc dot gnu.org
Summary|C++11, 'using' instead of |[C++11] 'using' instead of
|'typedef' causes a |'typedef' causes a
|segmentation fault. |segmentation fault.
Ever confirmed|0 |1
Known to fail||4.7.0, 4.8.0, 4.9.0
--- Comment #4 from Volker Reichelt reichelt at gcc dot gnu.org ---
Confirmed. Reduced testcase that crashes since GCC 4.7.0 when template
alias (aka 'using') was introduced:
templatetypename T, template typename class U void foo(const UT) {}
templatetypename struct A
{
using B = A;
B bar();
};
void baz()
{
foo(Aint().bar());
}
Stack trace with current 4.8 branch:
bug.cc: In function 'void baz()':
bug.cc:11:22: internal compiler error: Segmentation fault
foo(Aint().bar());
^
0xad469f crash_signal
../../gcc/gcc/toplev.c:332
0xcff5e2 tree_check
../../gcc/gcc/tree.h:3683
0xcff5e2 make_decl_rtl(tree_node*)
../../gcc/gcc/varasm.c:1197
0x7d72f3 rtx_for_function_call
../../gcc/gcc/calls.c:1675
0x7d72f3 expand_call(tree_node*, rtx_def*, int)
../../gcc/gcc/calls.c:2983
0x8aadcd expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**)
../../gcc/gcc/expr.c:10263
0x7e82fd expand_call_stmt
../../gcc/gcc/cfgexpand.c:2114
0x7e82fd expand_gimple_stmt_1
../../gcc/gcc/cfgexpand.c:2152
0x7e82fd expand_gimple_stmt
../../gcc/gcc/cfgexpand.c:2304
0x7e9162 expand_gimple_basic_block
../../gcc/gcc/cfgexpand.c:4138
0x7eacdc gimple_expand_cfg
../../gcc/gcc/cfgexpand.c:4657
Please submit a full bug report, [etc.]
Stack trace with trunk:
cc1plus: internal compiler error: Segmentation fault
0xba523f crash_signal
../../gcc/gcc/toplev.c:337
0x87e004 tree_check
../../gcc/gcc/tree.h:2918
0x87e004 decl_assembler_name_hash
../../gcc/gcc/symtab.c:98
0x87e46f insert_to_assembler_name_hash
../../gcc/gcc/symtab.c:209
0x87e5c1 symtab_initialize_asm_name_hash
../../gcc/gcc/symtab.c:432
0x88cda2 analyze_functions
../../gcc/gcc/cgraphunit.c:1124
0x88e2a5 finalize_compilation_unit()
../../gcc/gcc/cgraphunit.c:2320
0x689cae cp_write_global_declarations()
../../gcc/gcc/cp/decl2.c:4448
Please submit a full bug report, [etc.]
