http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60182

            Bug ID: 60182
           Summary: g++ segfault within template expansion using "using"
                    aliasing
           Product: gcc
           Version: 4.8.2
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xgue...@tower-research.com

Created attachment 32129
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32129&action=edit
Code producing the issue

G++ segfault while passing a class member that has been declared using a
"using" alias to a templates function that uses templated type reduction.

[g++48 -std=c++11 -o test test.cpp]
test.cpp: In constructor ‘A::A(const string&)’:
test.cpp:28:25: internal compiler error: Segmentation fault
   doSomething(m_elements);
0x90661f crash_signal
        ../../gcc-4.8.2/gcc/toplev.c:332
0x58bedc unify
        ../../gcc-4.8.2/gcc/cp/pt.c:16580
0x58e9e1 unify_one_argument
        ../../gcc-4.8.2/gcc/cp/pt.c:15470
0x588dca type_unification_real
        ../../gcc-4.8.2/gcc/cp/pt.c:15542
0x58faf9 fn_type_unification(tree_node*, tree_node*, tree_node*, tree_node*
const*, unsigned int, tree_node*, unification_kind_t, int, bool)
        ../../gcc-4.8.2/gcc/cp/pt.c:15124
0x5516b1 add_template_candidate_real
        ../../gcc-4.8.2/gcc/cp/call.c:2925
0x54f0a1 add_template_candidate
        ../../gcc-4.8.2/gcc/cp/call.c:3022
0x54f0a1 add_candidates
        ../../gcc-4.8.2/gcc/cp/call.c:5023
0x5537fd perform_overload_resolution
        ../../gcc-4.8.2/gcc/cp/call.c:3817
0x55727a build_new_function_call(tree_node*, vec<tree_node*, va_gc,
vl_embed>**, bool, int)
        ../../gcc-4.8.2/gcc/cp/call.c:3894
0x606911 finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
        ../../gcc-4.8.2/gcc/cp/semantics.c:2231
0x5c4d5a cp_parser_postfix_expression
        ../../gcc-4.8.2/gcc/cp/parser.c:5862
0x5c6edd cp_parser_unary_expression
        ../../gcc-4.8.2/gcc/cp/parser.c:6736
0x5c7a0f cp_parser_binary_expression
        ../../gcc-4.8.2/gcc/cp/parser.c:7428
0x5c7ebf cp_parser_assignment_expression
        ../../gcc-4.8.2/gcc/cp/parser.c:7664
0x5c9ab3 cp_parser_expression
        ../../gcc-4.8.2/gcc/cp/parser.c:7826
0x5ca21c cp_parser_expression
        ../../gcc-4.8.2/gcc/cp/parser.c:7865
0x5ca21c cp_parser_expression_statement
        ../../gcc-4.8.2/gcc/cp/parser.c:9127
0x5c13c7 cp_parser_statement
        ../../gcc-4.8.2/gcc/cp/parser.c:8979
0x5c259e cp_parser_statement_seq_opt
        ../../gcc-4.8.2/gcc/cp/parser.c:9245
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

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