https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113898
Shaohua Li <shaohua.li at inf dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #5 from Shaohua Li <shaohua.li at inf dot ethz.ch> ---
Looks like the fix is not complete
Compiler explorer: https://godbolt.org/z/z3YKznMzE
% cat reduced.c
long a, b, c;
int d;
long e[2][1];
int f() {
if (c == a)
c = b;
}
void g() {
int h, i = 0;
for (; f() + d + i; i++)
e[h][i] = 4;
}
void main() {}
%
% gcc -O3 reduced.c
during GIMPLE pass: fre
reduced.c: In function 'g':
reduced.c:8:6: internal compiler error: in copy_reference_ops_from_ref, at
tree-ssa-sccvn.cc:1177
8 | void g() {
| ^
0x233ba2c internal_error(char const*, ...)
???:0
0x96c20f fancy_abort(char const*, int, char const*)
???:0
0x12991ba vn_reference_lookup(tree_node*, tree_node*, vn_lookup_kind,
vn_reference_s**, bool, tree_node**, tree_node*, bool)
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
%
