Launchpad has imported 2 comments from the remote bug at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97892.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2020-11-18T13:21:32+00:00 Matthias Klose wrote: seen with the gcc-10 branch and the trunk, gcc configured with --enable-checking=yes,extra,rtl gcc-9 configured here with --enable-checking=release, so I don't know if that's a regression. $ cat qq.i int m(int a) { return sizeof((char[a])); }; $ gcc-9 -c qq.i qq.i: In function ‘m’: qq.i:1:39: error: expected expression before ‘)’ token 1 | int m(int a) { return sizeof((char[a])); }; | ^ $ gcc-10 -c qq.i qq.i: In function ‘m’: qq.i:1:39: error: expected expression before ‘)’ token 1 | int m(int a) { return sizeof((char[a])); }; | ^ qq.i:1:39: internal compiler error: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in c_expr_sizeof_expr, at c/c-typeck.c:2946 0x7602ef tree_class_check_failed(tree_node const*, tree_code_class, char const*, int, char const*) ../../src/gcc/tree.c:9780 0x5c2697 tree_class_check(tree_node*, tree_code_class, char const*, int, char const*) ../../src/gcc/tree.h:3417 0x5c2697 c_expr_sizeof_expr(unsigned int, c_expr) ../../src/gcc/c/c-typeck.c:2946 0xa274b7 c_parser_sizeof_expression ../../src/gcc/c/c-parser.c:8348 0xa274b7 c_parser_unary_expression ../../src/gcc/c/c-parser.c:8245 0xa280fd c_parser_cast_expression ../../src/gcc/c/c-parser.c:8115 0xa28389 c_parser_binary_expression ../../src/gcc/c/c-parser.c:7918 0xa29365 c_parser_conditional_expression ../../src/gcc/c/c-parser.c:7652 0xa29980 c_parser_expr_no_commas ../../src/gcc/c/c-parser.c:7569 0xa29be1 c_parser_expression ../../src/gcc/c/c-parser.c:10644 0xa2a387 c_parser_expression_conv ../../src/gcc/c/c-parser.c:10677 0xa20861 c_parser_statement_after_labels ../../src/gcc/c/c-parser.c:6212 0xa21d11 c_parser_compound_statement_nostart ../../src/gcc/c/c-parser.c:5805 0xa407c4 c_parser_compound_statement ../../src/gcc/c/c-parser.c:5617 0xa42281 c_parser_declaration_or_fndef ../../src/gcc/c/c-parser.c:2505 0xa4a3f3 c_parser_external_declaration ../../src/gcc/c/c-parser.c:1745 0xa4aef1 c_parser_translation_unit ../../src/gcc/c/c-parser.c:1618 0xa4aef1 c_parse_file() ../../src/gcc/c/c-parser.c:21752 0xaa21fb c_common_parse_file() ../../src/gcc/c-family/c-opts.c:1190 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-10/+bug/1904630/comments/5 ------------------------------------------------------------------------ On 2020-11-18T13:34:18+00:00 Marxin-m wrote: It's at least as old as GCC 4.8.0. Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-10/+bug/1904630/comments/6 ** Changed in: gcc Status: Unknown => Confirmed ** Changed in: gcc Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1904630 Title: gcc-10 compilation failure in c_expr_sizeof_expr To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/1904630/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
