[Bug c/110662] Segmentation fault with '-O3'

[19373742 at buaa dot edu.cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110662

--- Comment #2 from CTC <19373742 at buaa dot edu.cn> ---
The reduced sequence is -O3 -fno-dce -fno-tree-dce -fno-tree-sink