https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107307
Bug ID: 107307
Summary: ICE tree check: expected class 'type', have
'exceptional' (error_mark) in
canonicalize_component_ref, at gimplify.cc:2923
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started with r12 between 20210822 and 20210905 :
$ cat z1.c
void f ()
{
const struct { int a[1]; } b;
int *c = b.a;
int *b;
}
$ gcc-13-20221016 -c z1.c
z1.c: In function 'f':
z1.c:4:12: warning: initialization discards 'const' qualifier from pointer
target type [-Wdiscarded-qualifiers]
4 | int *c = b.a;
| ^
z1.c:5:8: error: conflicting type qualifiers for 'b'
5 | int *b;
| ^
z1.c:3:30: note: previous declaration of 'b' with type 'const struct
<anonymous>'
3 | const struct { int a[1]; } b;
| ^
z1.c:4:13: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in canonicalize_component_ref, at gimplify.cc:2923
4 | int *c = b.a;
| ~^~
0x6acb6d tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
../../gcc/tree.cc:8886
0xb8578e tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
../../gcc/tree.h:3649
0xb8578e canonicalize_component_ref
../../gcc/gimplify.cc:2923
0xba3857 gimplify_compound_lval
../../gcc/gimplify.cc:3326
0xb9753a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16280
0xbaa91a gimplify_addr_expr
../../gcc/gimplify.cc:6529
0xb9913d gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16375
0xba931f gimplify_modify_expr
../../gcc/gimplify.cc:6121
0xb998f7 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16328
0xb9d7d8 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7187
0xba2343 gimplify_and_add(tree_node*, gimple**)
../../gcc/gimplify.cc:492
0xba2343 gimplify_decl_expr
../../gcc/gimplify.cc:1938
0xb988b2 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16525
0xb9d7d8 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7187
0xb98bcb gimplify_statement_list
../../gcc/gimplify.cc:2021
0xb98bcb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16773
0xb9d7d8 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7187
0xb9e163 gimplify_bind_expr
../../gcc/gimplify.cc:1430
0xb990da gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc/gimplify.cc:16529
0xb9d7d8 gimplify_stmt(tree_node**, gimple**)
../../gcc/gimplify.cc:7187
