https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85140
Bug ID: 85140
Summary: ICE with invalid use of alignas
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: error-recovery, ice-on-invalid-code
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 coide snippet triggers an ICE since GCC 4.8.0:
=============================
namespace N alignas() {}
=============================
bug.cc:1:21: error: expected primary-expression before ')' token
namespace N alignas() {}
^
bug.cc:1:24: internal compiler error: tree check: expected tree_list, have
error_mark in get_attribute_name, at attribs.c:835
namespace N alignas() {}
^
0x78c848 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/gcc/tree.c:9322
0x9fa8a5 tree_check(tree_node const*, char const*, int, char const*, tree_code)
../../gcc/gcc/tree.h:3391
0x9fa8a5 get_attribute_name(tree_node const*)
../../gcc/gcc/attribs.c:835
0x8ffbad handle_namespace_attrs(tree_node*, tree_node*)
../../gcc/gcc/cp/name-lookup.c:5049
0x9496bf cp_parser_namespace_definition
../../gcc/gcc/cp/parser.c:18585
0x948cd3 cp_parser_declaration
../../gcc/gcc/cp/parser.c:12762
0x948fd1 cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:12658
0x9492c4 cp_parser_translation_unit
../../gcc/gcc/cp/parser.c:4563
0x9492c4 c_parse_file()
../../gcc/gcc/cp/parser.c:39024
0xa48b26 c_common_parse_file()
../../gcc/gcc/c-family/c-opts.c:1132
Please submit a full bug report, [etc.]
