https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87110
Bug ID: 87110
Summary: tree check fail in to_wide, at tree.h:5523
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Somewhere between revisions 263799 and 263849, this C code
enum a { b, c };
struct d {
_Bool e;
enum a f
};
g, h;
i() {
struct d j[h];
j[0] = (struct d){.f = c};
for (; g;)
(struct d){};
}
goes wrong:
/home/dcb/gcc/results.263799.asan/bin/gcc
/home/dcb/gcc/results.263849/bin/gcc
during GIMPLE pass: dse
bug460.c: In function ‘i’:
bug460.c:12:1: internal compiler error: tree check: expected integer_cst, have
v
ar_decl in to_wide, at tree.h:5523
12 | }
| ^
0x6b17b1 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../trunk/gcc/tree.c:9370
0x6b3f9d tree_check(tree_node const*, char const*, int, char const*, tree_code)
../../trunk/gcc/tree.h:3376
0x6b3f9d wi::to_wide(tree_node const*)
../../trunk/gcc/tree.h:5523
0x6b3f9d tree_int_cst_sgn(tree_node const*)
../../trunk/gcc/tree.c:6872
with compiler flag -O2.
