blob: bb824ab60e4211d83199dd9b29f616f98ac48dfe (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
instruction: 0.930
runtime: 0.043
syscall: 0.026
illegal instructions for AArch64 ARMv8
The test case is in the attachment. To reproduce as following (I tried both GCC and Clang):
$aarch64-linux-gnu-gcc qemu.c -o test
$./test
qemu: uncaught target signal 4 (Illegal instruction) - core dumped
Illegal instruction (core dumped)
There are 3 intrinsics are tested in the test case: vqmovunh_s16, vqmovuns_s32, vqmovund_s64. They will be compiled into instructions:
SQXTUN Bd, Hn
SQXTUN Hd, Sn
SQXTUN Sd, Dn.
It seems that these instructions are not supported in QEMU. Is this a bug?
|