https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88077
Bug ID: 88077
Summary: [8/9 Regression] ICE: tree check: expected class
‘type’, have ‘declaration’ (var_decl) in
lto_symtab_merge, at lto/lto-symtab.c:378 since
r256989
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Starting from my commit we ICE on:
$ cat 1.i
int HeaderStr;
$ cat 2.i
char HeaderStr[];
$ gcc [12].i -flto -O2 -shared
2.i:1:6: warning: array ‘HeaderStr’ assumed to have one element
1 | char HeaderStr[];
| ^~~~~~~~~
lto1: internal compiler error: tree check: expected class ‘type’, have
‘declaration’ (var_decl) in lto_symtab_merge, at lto/lto-symtab.c:378
0x6b6361 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
/home/marxin/Programming/gcc/gcc/tree.c:9707
0x5b710b tree_class_check(tree_node*, tree_code_class, char const*, int, char
const*)
/home/marxin/Programming/gcc/gcc/tree.h:3277
0x5b710b lto_symtab_merge
/home/marxin/Programming/gcc/gcc/lto/lto-symtab.c:378
0x5b710b lto_symtab_merge_decls_2
/home/marxin/Programming/gcc/gcc/lto/lto-symtab.c:636
0x5b710b lto_symtab_merge_decls_1
/home/marxin/Programming/gcc/gcc/lto/lto-symtab.c:849
0x5b710b lto_symtab_merge_decls()
/home/marxin/Programming/gcc/gcc/lto/lto-symtab.c:875
0x78cfc4 read_cgraph_and_symbols
/home/marxin/Programming/gcc/gcc/lto/lto.c:2962
0x78cfc4 lto_main()
/home/marxin/Programming/gcc/gcc/lto/lto.c:3401
