https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97849
Bug ID: 97849
Summary: aarch64: ICE (segfault) during GIMPLE pass: ifcvt
since r10-3543-gf30b3d28
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: acoplan at gcc dot gnu.org
Target Milestone: ---
AArch64 GCC ICEs on the following testcase:
int a, b, c, d;
static int e(int f) { return a == 0 ? 0 : f / a; }
int g() {
int h;
char i = c = 0;
for (; c <= 8; c++)
--i;
for (; b;) {
int *j = &a;
d = *j;
*j = e(0 >= i);
}
}
at -O1 -ftree-vectorize -march=armv8.2-a+sve since
r10-3543-gf30b3d2891cef9803badb3f85d739c0fcfafd585. To reproduce:
$ aarch64-elf-gcc -c -S -O1 -ftree-vectorize -march=armv8.2-a+sve test.c
during GIMPLE pass: ifcvt
test.c: In function 'g':
test.c:3:5: internal compiler error: Segmentation fault
3 | int g() {
| ^
0xdb190b crash_signal
/home/alecop01/toolchain/src/gcc/gcc/toplev.c:330
0xe48224 ifcvt_local_dce
/home/alecop01/toolchain/src/gcc/gcc/tree-if-conv.c:2993
0xe48224 tree_if_conversion(loop*, vec<gimple*, va_heap, vl_ptr>*)
/home/alecop01/toolchain/src/gcc/gcc/tree-if-conv.c:3130
0xe48ace execute
/home/alecop01/toolchain/src/gcc/gcc/tree-if-conv.c:3207
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.
