https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112831
Bug ID: 112831
Summary: ICE: tree check: expected class 'type', have
'exceptional' (error_mark) in
type_has_mode_precision_p, at tree.h:6767
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: shaohua.li at inf dot ethz.ch
CC: fweimer at redhat dot com
Target Milestone: ---
gcc at -Os crashes on the test case.
Bisected to r14-6034-g4ee2aca7ca0
Compiler explorer: https://godbolt.org/z/6We5qxMbr
% cat a.c
int a, b;
char c;
int d() {}
void e() {
for (; c; c++) {
b = 0;
for (; b <= 7; b++)
;
for (; (short)(d() + b) + a; a++)
;
}
}
int main() {}
%
% gcc -Os a.c
during GIMPLE pass: sccp
a.c: In function ‘e’:
a.c:4:6: internal compiler error: tree check: expected class ‘type’, have
‘exceptional’ (error_mark) in type_has_mode_precision_p, at tree.h:6767
4 | void e() {
| ^
0x7f47566c3082 __libc_start_main
../csu/libc-start.c:308
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.
%
