[Bug middle-end/106323] [Suboptimal] memcmp(s1, s2, n) == 0 expansion on AArch64 compare to llvm

[zhongyunde at huawei dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106323

--- Comment #4 from vfdff <zhongyunde at huawei dot com> ---
Now, llvm use 4 loads and CMP+CCMP, https://gcc.godbolt.org/z/PM3jxEM9M