https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85794
Bug ID: 85794
Summary: [8/9 Regression][AArch64] ICE in
expand_vector_condition in GIMPLE pass: veclower2
Product: gcc
Version: 8.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sudi at gcc dot gnu.org
Target Milestone: ---
The following code ICEs with -O3 with aarch64-none-linux-gnu
int a, b, *c, d, *e;
int *f[6];
void fn1() {
b = 1;
for (; b >= 0; b--) {
d = 0;
for (; d <= 3; d++) {
int **g = &e;
*g = &a;
*e |= f[b * 5] != c;
}
}
}
./build-aarch64-none-linux-gnu/install/bin/aarch64-none-linux-gnu-gcc f.c -O3
-S -fdump-tree-all
during GIMPLE pass: veclower2
dump file: f.c.173t.veclower21
f.c: In function ‘fn1’:
f.c:6:6: internal compiler error: Segmentation fault
void fn1() {
^~~
0xbd57ff crash_signal
/work/trunk/src/gcc/gcc/toplev.c:325
0xe55d90 tree_class_check
/work/trunk/src/gcc/gcc/tree.h:3257
0xe55d90 expand_vector_condition
/work/trunk/src/gcc/gcc/tree-vect-generic.c:901
0xe587c1 expand_vector_operations_1
/work/trunk/src/gcc/gcc/tree-vect-generic.c:1582
0xe587c1 expand_vector_operations
/work/trunk/src/gcc/gcc/tree-vect-generic.c:1829
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
