https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84341
Bug ID: 84341
Summary: [6/7/8 Regression] ICE with #pragma omp atomic
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, openmp
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 "-fopenmp")
triggers an ICE since GCC 4.9.0:
========================
void foo(int i)
{
#pragma omp atomic
i = &i + 1;
}
========================
bug.cc: In function 'void foo(int)':
bug.cc:4:14: internal compiler error: in build2, at tree.c:4682
i = &i + 1;
^
0x78d6b5 build2(tree_code, tree_node*, tree_node*, tree_node*)
../../gcc/gcc/tree.c:4681
0x911e31 build2_loc
../../gcc/gcc/tree.h:4112
0x911e31 cp_parser_binary_expression
../../gcc/gcc/cp/parser.c:9333
0x932614 cp_parser_binary_expression
../../gcc/gcc/cp/parser.c:9372
0x932614 cp_parser_omp_atomic
../../gcc/gcc/cp/parser.c:34277
0x9186ba cp_parser_omp_construct
../../gcc/gcc/cp/parser.c:38030
0x919a97 cp_parser_pragma
../../gcc/gcc/cp/parser.c:38704
0x91c05c cp_parser_statement
../../gcc/gcc/cp/parser.c:10877
0x91cc30 cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:11255
0x91cd07 cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:11209
0x933460 cp_parser_function_body
../../gcc/gcc/cp/parser.c:21747
0x933460 cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:21784
0x933d10 cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:26685
0x934a27 cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:26601
0x934a27 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:19473
0x93bac8 cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:13038
0x93c8d8 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:12863
0x940832 cp_parser_declaration
../../gcc/gcc/cp/parser.c:12761
0x940c41 cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:12637
0x940f34 cp_parser_translation_unit
../../gcc/gcc/cp/parser.c:4559
Please submit a full bug report, [etc.]
