https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79758
Bug ID: 79758
Summary: ICE: tree check: expected class 'type', have
'exceptional' (error_mark) in
store_parm_decls_oldstyle, at c/c-decl.c:8973
Product: gcc
Version: 7.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gerhard.steinmetz.fort...@t-online.de
Target Milestone: ---
With invalid code on x86_64 GNU/Linux down to at least 4.8
(configured with --enable-checking=yes) :
$ cat z1.c
void fn1 (int[a]) { };
void fn1 (b) { };
$ gcc-7-20170226 -c z1.c
z1.c:1:15: error: 'a' undeclared here (not in a function)
void fn1 (int[a]) { };
^
z1.c: In function 'fn1':
z1.c:1:14: error: parameter name omitted
void fn1 (int[a]) { };
^
z1.c: At top level:
z1.c:2:6: error: redefinition of 'fn1'
void fn1 (b) { };
^~~
z1.c:1:6: note: previous definition of 'fn1' was here
void fn1 (int[a]) { };
^~~
z1.c: In function 'fn1':
z1.c:2:6: warning: type of 'b' defaults to 'int' [-Wimplicit-int]
void fn1 (b) { };
^~~
z1.c:2:1: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in store_parm_decls_oldstyle, at c/c-decl.c:8973
void fn1 (b) { };
^~~~
0xea3607 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
../../gcc/tree.c:9866
0x672ead tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
../../gcc/tree.h:3187
0x672ead store_parm_decls_oldstyle
../../gcc/c/c-decl.c:8973
0x672ead store_parm_decls()
../../gcc/c/c-decl.c:9147
0x6d05af c_parser_declaration_or_fndef
../../gcc/c/c-parser.c:2074
0x6d87fb c_parser_external_declaration
../../gcc/c/c-parser.c:1468
0x6d9259 c_parser_translation_unit
../../gcc/c/c-parser.c:1348
0x6d9259 c_parse_file()
../../gcc/c/c-parser.c:18173
0x737b02 c_common_parse_file()
../../gcc/c-family/c-opts.c:1107
