https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80059
Bug ID: 80059
Summary: [7 Regression] ICE with invalid noexcept for
__transaction_atomic
Product: gcc
Version: 7.0.1
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, trans-mem
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
Target Milestone: ---
The following invalid code snippet (compiled with -fgnu-tm) triggers
an ICE on trunk:
=================================================
template<typename> int foo(bool b)
{
return __transaction_atomic noexcept(b) (0);
}
void bar()
{
foo<int>(true);
}
=================================================
bug.cc: In function 'int foo(bool)':
bug.cc:3:45: internal compiler error: unexpected expression 'b' of kind
implicit_conv_expr
return __transaction_atomic noexcept(b) (0);
^
0x83f890 cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:4575
0x842ece cxx_eval_outermost_constant_expr
../../gcc/gcc/cp/constexpr.c:4633
0x776f2a build_must_not_throw_expr(tree_node*, tree_node*)
../../gcc/gcc/cp/except.c:274
0x7ac6ff build_transaction_expr(unsigned int, tree_node*, int, tree_node*)
../../gcc/gcc/cp/semantics.c:8747
0x72628f cp_parser_transaction_expression
../../gcc/gcc/cp/parser.c:37871
0x72628f cp_parser_unary_expression
../../gcc/gcc/cp/parser.c:7895
0x726c93 cp_parser_cast_expression
../../gcc/gcc/cp/parser.c:8780
0x7273e7 cp_parser_binary_expression
../../gcc/gcc/cp/parser.c:8881
0x727cb4 cp_parser_assignment_expression
../../gcc/gcc/cp/parser.c:9168
0x72b9c8 cp_parser_expression
../../gcc/gcc/cp/parser.c:9337
0x719f9a cp_parser_jump_statement
../../gcc/gcc/cp/parser.c:12147
0x719f9a cp_parser_statement
../../gcc/gcc/cp/parser.c:10581
0x71a84d cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:11027
0x71a91f cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:10981
0x71aab3 cp_parser_function_body
../../gcc/gcc/cp/parser.c:21428
0x71aab3 cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:21466
0x71b331 cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:26253
0x71c01d cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:26165
0x71c01d cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:19155
0x71c5ca cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:26711
Please submit a full bug report, [etc.]
This is a recent regression introduced between 2017-03-02 and 2017-03-06.
