http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58834
Bug ID: 58834
Summary: [4.9 Regression] ICE on __builtin_shuffle within
template function
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
The following valid code snippet triggers an ICE on trunk (since at least GCC
4.9.0 20130920):
=============================================
template<typename> void foo()
{
int i __attribute__((vector_size(8)));
__builtin_shuffle(i, i);
}
=============================================
bug.cc: In function 'void foo()':
bug.cc:4:25: internal compiler error: Segmentation fault
__builtin_shuffle(i, i);
^
0xb16cef crash_signal
../../gcc/gcc/toplev.c:335
0x59bb7a identifier_p
../../gcc/gcc/cp/cp-tree.h:255
0x59bb7a type_dependent_expression_p(tree_node*)
../../gcc/gcc/cp/pt.c:20517
0x677b70 build_x_vec_perm_expr(unsigned int, tree_node*, tree_node*,
tree_node*, int)
../../gcc/gcc/cp/typeck.c:4945
0x64e2f0 cp_parser_postfix_expression
../../gcc/gcc/cp/parser.c:5763
0x6506fd cp_parser_unary_expression
../../gcc/gcc/cp/parser.c:7066
0x6512cf cp_parser_binary_expression
../../gcc/gcc/cp/parser.c:7758
0x6517af cp_parser_assignment_expression
../../gcc/gcc/cp/parser.c:7996
0x653c93 cp_parser_expression
../../gcc/gcc/cp/parser.c:8158
0x65449e cp_parser_expression
../../gcc/gcc/cp/parser.c:8197
0x65449e cp_parser_expression_statement
../../gcc/gcc/cp/parser.c:9488
0x649737 cp_parser_statement
../../gcc/gcc/cp/parser.c:9339
0x64aa22 cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:9611
0x64ab66 cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:9565
0x65e1cb cp_parser_function_body
../../gcc/gcc/cp/parser.c:18408
0x65e1cb cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:18444
0x6625df cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:22452
0x6633b2 cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:22373
0x6633b2 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:16419
0x663754 cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:22766
Please submit a full bug report, [etc.]
